2022 ｜ 2021 ｜ 2020 ｜ 2019 ｜ 2018 ｜ 2017 ｜ 2016 ｜ 2015 ｜ 2014

2022

2022/11/23

New publication in Palaeogeography, Palaeoclimatology, Palaeoecology
Climatic change around the 4.2 ka event in coastal areas of the East China Sea and its potential influence on prehistoric Japanese people

2022/11/14

New publication in Frontiers in Marine Science
Microbial alteration in marine sediments: Insights from compound-specific isotopic compositions of amino acids in subseafloor environments

2022/10/26

New publication in Science Advances
Rapid and precise measurement of carbonate clumped isotopes using laser spectroscopy

2022/10/22

New publication in Science Advances
First asteroid gas sample delivered by the Hayabusa2 mission: A treasure box from Ryugu

2022/10/22

New publication in Science
Noble gases and nitrogen in samples of asteroid Ryugu record its volatile sources and recent surface evolution

2022/10/21

New publication in Geochemical Journal
Ryugu particles found outside the Hayabusa2 sample container

2022/09/21

New publication in Communications Earth & Environment
Deep submarine infiltration of altered geothermal groundwater on the south Chilean Margin

2022/09/18

New publication in Boreas
Southern Hemisphere Westerly Winds modulate the formation of laminations in sediments in Lago Fagnano (Tierra del Fuego, Argentina) over the past 6.3 ka

2022/09/16

New publication in Geophysical Research Letters
Nitrogen Isotopes of Sinking Particles Reveal the Seasonal Transition of the Nitrogen Source for Phytoplankton

2022/09/09

New publication in Biomacromolecules
Identification of Chitin Allomorphs in Poorly Crystalline Samples Based on the Complexation with Ethylenediamine

2022/09/02

New publication in Accounts of Chemical Research
DNA G-Quadruplex in Human Telomeres and Oncogene Promoters: Structures, Functions, and Small Molecule Targeting

2022/08/26

New publication in International Journal of Astrobiology
Biomarkers in the Atacama Desert along the moisture gradient and the depth in the hyperarid zone: Phosphatase activity as trace of microbial activity

2022/08/23

New publication in PeerJ
Synchrotron μ-XRF mapping analysis of trace elements in in-situ cultured Japanese red coral, Corallium japonicum

2022/08/18

New publication in American Journal of Biological Anthropology
Stable isotopic investigation of the feeding ecology of wild Bornean orangutans

2022/08/04

New publication in PLoS ONE
Unusual bromine enrichment in the gastric mill and setae of the hadal amphipod Hirondellea gigas

2022/07/25

New publication in Nature Communications
Sunlight-driven nitrate loss records Antarctic surface mass balance

2022/07/22

New publication in Progress in Earth and Planetary Science
Long-chain alkenones in the Shimosa Group reveal palaeotemperatures of the Pleistocene interglacial Palaeo-Tokyo Bays

2022/07/19

New publication in Limnology and Oceanography: Methods
Integrative assessment of amino acid nitrogen isotopic composition in biological tissue samples determined by GC/C/IRMS, LC × EA/IRMS, and LC × GC/C/IRMS

2022/07/07

The JAMSTEC Young Research Fellow (JYRF) 2023 application is now open.
(closing date: September 6, 2022 at 13:00 in Japan time) (closed)

2022/06/21

New publication in Journal of Geochemical Exploration
Formation of the Rock Canyon Creek carbonate-hosted REE-F-Ba deposit, British Columbia, Canada: Constraints from Mg-Sr isotopes of dolomite, calcite, and fluorite

2022/06/18

New publication in Environmental Pollution
Large-scale sampling of the freshwater microbiome suggests pollution-driven ecosystem changes

2022/06/15

New publication in ACS Earth and Space Chemistry
Origin of Deep Methane from Active Faults along the Itoigawa-Shizuoka Tectonic Line between the Eurasian and North American Plates: 13C/12C and 14C/12C Methane Profiles from a Pull-Apart Basin at Lake Suwa

Press release
Identification of molecular species of deep gas seeping from fault lake at plate boundary, and elucidation of its contribution to carbon cycle -Understanding the mystery of the big hole that appears in lake ice during midwinter season-

2022/06/10

New publication in Earth, Planets and Space
Environmental assessment in the prelaunch phase of Hayabusa2 for safety declaration of returned samples from the asteroid (162173) Ryugu: background monitoring and risk management during development of the sampler system

2022/06/05

New publication in Chemical Geology
The magnesium isotopic compositions of the crust and mantle: A study on the Oman ophiolite

2022/06/01

New publication in Journal of the Royal Society Interface
Uniaxial orientation of β-chitin nanofibres used as an organic framework in the scales of a hot vent snail

2022/05/24

New publication in Earth, Planets and Space
The GAs Extraction and Analyses system (GAEA) for immediate extraction and measurements of volatiles in the Hayabusa2 sample container

2022/05/20

New publication in Nature Communications
Holocene melting of the West Antarctic Ice Sheet driven by tropical Pacific warming

2022/04/27

New publication in Nature Communications
Identifying the wide diversity of extraterrestrial purine and pyrimidine nucleobases in carbonaceous meteorites

2022/04/25

New publication in Quaternary Science Advances
Beryllium isotope variations recorded in the Adelie Basin, East Antarctica reflect Holocene changes in ice dynamics, productivity, and scavenging efficiency

2022/04/22

New publication in ACS Earth and Space Chemistry
Synthesis of Amino Acids from Aldehydes and Ammonia: Implications for Organic Reactions in Carbonaceous Chondrite Parent Bodies

2022/04/18

New publication in Analytical Chemistry
Subnanomolar Sensitive Stable Isotopic Determination in CO2 by Tunable Infrared Laser Absorption Spectroscopy

2022/04/13

New publication in Catena
Climatic control on the Holocene hydrology of a playa-lake system in the western Mediterranean

2022/04/13

"Group Photo (2022)" is on the Member page

2022/03/14

New publication in Geochemistry, Geophysics, Geosystems
Nitrogen sources for phytoplankton in the eastern Indian Ocean determined from δ15N of chlorophyll a and divinylchlorophyll a

2022/03/09

New publication in Ecosystems
Biomass Pyramids of Marine Mesozooplankton Communities as Inferred From Their Integrated Trophic Positions

2022/03/01

New publication in Earth and Planetary Science
Potassium incorporation and isotope fractionation in cultured scleractinian corals

2022/02/10

New publication in Science
Pebbles and sand on asteroid (162173) Ryugu: In situ observation and particles returned to Earth

2022/02/09

New publication in Ecosphere
Calcium and strontium stable isotopes reveal similar behaviors of essential Ca and non-essential Sr in stream food webs

2022/02/04

New publication in Frontiers in Marine Science
Compound-Specific Nitrogen Isotope Analysis of Amino Acids in Eye Lenses as a New Tool to Reconstruct the Geographic and Trophic Histories of Fish

Press release
A Method to Decipher the Life History of Fish from its Eyeballs Recorded since its Juvenile Stage

2022/02/03

New publication in Journal of Soils and Sediments
Kettle holes reflect the biogeochemical characteristics of their catchment area and the intensity of the element-specific input

2022/01/27

New publication in Sedimentology
Preservation of Fe/Mn-redox fronts in sediments of an oligotrophic, oxygenated deep-water lake (Lago Fagnano, Tierra del Fuego)

2022/01/25

New publication in Palaeogeography, Palaeoclimatology, Palaeoecology
Impact of the Mediterranean-Atlantic connectivity and the late Miocene carbon shift on deep-sea communities in the Western Alboran Basin

2022/01/24

New publication in Biogeosciences
Ideas and perspectives: Emerging contours of a dynamic exogenous kerogen cycle

2022/01/17

New publication in Biogeochemistry
Divergent roles of iron and aluminum in sediment organic matter association at the terrestrial?aquatic interface

2022/01/05

New publication in Global and Planetary Change
Millennial-scale variability of Indian summer monsoon constrained by the western Bay of Bengal sediments: implication from geochemical proxies of sea surface salinity and river runoff

2021

2021/12/20

New publication in Nature Astronomy
Preliminary analysis of the Hayabusa2 samples returned from C-type asteroid Ryugu

2021/12/17

New publication in Carbohydrate Polymer Technologies and Applications
Continuing yet mostly reversible structuration of gum arabic in the presence of oil at interface

2021/12/07

New publication in Quaternary International
Reconstruction of diachronic changes in human fishing activity and marine ecosystems from carbon and nitrogen stable isotope ratios of archaeological fish remains

2021/12/01

New publication in Lithosphere
Identification of Paleoearthquakes and Coseismic Slips on a Normal Fault Using High-Precision Quantitative Morphology: Application to the Jiaocheng Fault in the Shanxi Rift, China

2021/11/06

New publication in Progress in Earth and Planetary Science
Detection of planktonic coenzyme factor 430 in a freshwater lake: small-scale analysis for probing archaeal methanogenesis

2021/11/04

New publication in Earth and Planetary Science Letters
Osmium and lithium isotope evidence for weathering feedbacks linked to orbitally paced organic carbon burial and Silurian glaciations

2021/10/11

New publication in Applied Geochemistry
Trace metal geochemical and Zn stable isotope data as tracers for anthropogenic metal contributions in a sediment core from Lake Biwa, Japan

2021/09/21

New publication in Geological Society of America Bulletin
Stratigraphy around the Cretaceous/Paleogene boundary in sediment cores from the Lord Howe Rise, Southwest Pacific

2021/09/14

New publication in Global Change Biology
In situ experimental evidences for responses of abyssal benthic biota to shifts in phytodetritus compositions linked to global climate change

2021/09/14

New publication in JACS Au
Insights into the Methanogenic Population and Potential in Subsurface Marine Sediments Based on Coenzyme F430 as a Function-Specific Biomarker

2021/09/10

"Group Photo (2021)" is on the Member page

2021/09/09

New publication in Nature Geoscience
Sensitivity of Holocene East Antarctic productivity to subdecadal variability set by sea ice

2021/08/25

New publication in Astrophysical Journal
On the nature of organic dust in novae

2021/08/20

New publication in Primates
Carbon and nitrogen stable isotopic offsets between diet and hair/feces in captive orangutans

2021/07/29

New publication in Meteoritics and Planetary Science
Organic matter in carbonaceous chondrite lithologies of Almahata Sitta: Incorporation of previously unsampled carbonaceous chondrite lithologies into ureilitic regolith

2021/07/26

New publication in Meteoritics & Planetary Science
Organic matter in carbonaceous chondrite lithologies of Almahata Sitta: Incorporation of previously unsampled carbonaceous chondrite lithologies into ureilitic regolith

2021/07/23

New publication in Frontiers in Earth Science
The Influence of Weathering, Water Sources, and Hydrological Cycles on Lithium Isotopic Compositions in River Water and Groundwater of the Ganges-Brahmaputra-Meghna River System in Bangladesh

2021/07/01

New publication in Meteoritics & Planetary Science
Extraterrestrial hydroxy amino acids in CM and CR carbonaceous chondrites

2021/07/01

New publication in Earth, Planets and Space
Analytical protocols for Phobos regolith samples returned by the Martian Moons eXploration (MMX) mission

2021/07/01

New publication in Progress in Oceanography
Abyssal fauna, benthic microbes, and organic matter quality across a range of trophic conditions in the western Pacific ocean

2021/06/27

New publication in Geochemical Journal
Assessing the debris generated by the small carry-on impactor operated from the Hayabusa2 mission

2021/06/23

New publication in Paleoceanography and Paleoclimatology
Latitudinal Migrations of the Subtropical Front at the Agulhas Plateau Through the Mid-Pleistocene Transition

2021/06/16

New publication in Journal of Geophysical Research: Biogeosciences
Organic matter compositions and loadings in river sediments from humid tropical volcanic Luzon island of the Philippines

2021/06/16

New publication in Applied Clay Science
Proposing a classic clay mineral proxy for quantifying kerogen reburial in the geologic past

2021/05/25

New publication in Frontiers in Global and Planetary Change
Paleohydrological dynamics in the Western Mediterranean during the last glacial cycle

2021/05/25

Interview "Viewing from Cosmic Perspectives: Hayabusa2" (JAXA)
（1）Looking Back with Hayabusa2 Spokesperson on the Six-Year Journey
（2）Viewing from Cosmic Perspectives: Hayabusa2
（3）Twitter (@JAXA_en)
（4）Facebook (@JAXA_en)

2021/05/19

New publication in Earth System Science Data
MOSAIC (Modern Ocean Sediment Archive and Inventory of Carbon): a (radio)carbon-centric database for seafloor surficial sediments

2021/05/17

New publication in Quaternary Science Reviews
Intensified organic carbon burial on the Australian shelf after the Middle Pleistocene transition

2021/05/16

New publication in Geochemical Journal
An effect of variations in relative sensitivity factors on Al-Mg systematics of Ca-Al-rich inclusions in meteorites with secondary ion mass spectrometry

2021/05/15

New publication in Palaeogeography, Palaeoclimatology, Palaeoecology
Hydrological influence on the evolution of a subtropical mangrove ecosystem during the late Holocene from Babitonga Bay, Brazil

2021/05/10

New publication in Communications Earth & Environment
Biomarkers in the rock outcrop of the Kazusa Group reveal palaeoenvironments of the Kuroshio region

2021/05/05

Selected as a top-100 paper in Scientific Reports
Precometary organic matter: A hidden reservoir of water inside the snow line

2021/05/05

New publication in Frontiers in Communications Earth & Environment
Strong glacial-interglacial variability in upper ocean hydrodynamics, biogeochemistry, and productivity in the southern Indian Ocean

2021/05/05

New publication in Frontiers in Marine Science
Influences of Ocean Currents on the Diets of Demersal Fish Communities in the Western North Pacific Revealed by Their Muscle Carbon and Nitrogen Isotopic Compositions

2021/05/01

New publication in Geochemistry Geophysics Geosystems
Dating Lake Sediments Using Compound-Specific 14C Analysis of C16 Fatty Acid: A Case Study From the Mount Fuji Volcanic Region, Japan

2021/04/28

New publication in Science Advances
Synthesis of 13C-enriched amino acids with 13C-depleted insoluble organic matter in a formose-type reaction in the early solar system

2021/04/19

New publication in Geochimica et Cosmochimica Acta
Potassium phases and isotopic composition in modern marine biogenic carbonates

2021/04/05

New publication in Marine Geology
Messinian West Alboran Sea record in the proximity of Gibraltar: Early signs of Atlantic-Mediterranean gateway restriction

2021/03/30

New publication in Marine Pollution Bulletin
Massive occurrence of benthic plastic debris at the abyssal seafloor beneath the Kuroshio Extension, the North West Pacific

Press release
A large number of plastic debris were found on the Boso Peninsula seafloor at a depth of approximately 6,000 m -Going to the deep-sea in search of missing plastic-

2021/03/24

New publication in Molecular Ecology Resources
Faecal proteomics as a novel method to study mammalian behavior and physiology

2021/03/18

New publication in Paleoceanography and Paleoclimatology
Plio-Pleistocene Continental Hydroclimate and Indian Ocean Sea Surface Temperatures at the Southeast African Margin

2021/02/26

New publication in Frontiers in Earth Science
Stable Strontium Isotopic Compositions of River Water, Groundwater and Sediments From the Ganges–Brahmaputra–Meghna River System in Bangladesh

2021/02/23

New publication in Proceedings of the National Academy of Sciences
Climate control on terrestrial biospheric carbon turnover

2021/02/23

New publication in Quaternary Science Reviews
Beryllium isotopes in sediments from Lake Maruwan Oike and Lake Skallen, East Antarctica, reveal substantial glacial discharge during the late Holocene

2021/02/15

New publication in Chemical Geology
When a mid-ocean ridge encroaches a continent: Seafloor-type hydrothermal activity in Lake Asal (Afar Rift)

2021/02/10

New publication in Rapid Communications in Mass Spectrometry
Initial measurement of beryllium‐9 using high‐resolution inductively coupled plasma mass spectrometry allows for more precise applications of the beryllium isotope system within the Earth Sciences

2021/01/31

New publication in International Journal of Mass Spectrometry
Analytical development of seamless procedures on cation-exchange chromatography and ion-pair chromatography with high-precision mass spectrometry for short-chain peptides

2021/01/25

New publication in Scientific Reports
Discovery of a colossal slickhead (Alepocephaliformes: Alepocephalidae): an active-swimming top predator in the deep waters of Suruga Bay, Japan

Pless release
Discovery of a Colossal “Yokozuna” Slickhead: An Active-Swimming Top Predator in the Deep Waters of Suruga Bay

2021/01/14

New publication in Chemical Geology
Osmium isotopic constraints on sulphide formation in the epithermal environment of magmatic-hydrothermal mineral deposits

2021/01/14

New publication in Nature
Antarctic icebergs reorganize ocean circulation during Pleistocene glacials

2021/01/13

New publication in Researches in Organic Geochemistry
Origin of Deep Methane Associated with a Unique Community of Microorganisms in an Organic- and Iodine-Rich Aquifer

Pless release
Ongoing biological methanogenesis by archaea in iodine-rich deep aquifer around Mobara, southern Kanto region

2021/01/06

New publication in Science of The Total Environment
Plastic additives in deep-sea debris collected from the western North Pacific and estimation for their environmental loads

2021/01/05

New publication in Climate of the Past
Mid-Holocene Antarctic sea-ice increase driven by marine ice sheet retreat

2021/01/04

New publication in Progress in Earth and Planetary Science
X-ray fluorescence core scanning, magnetic signatures, and organic geochemistry analyses of Ryukyu Trench sediments: turbidites and hemipelagites

2020

2020/12/17

New publication in Frontiers in Marine Science
Protocol for Sampling Sequential Fin Spine Growth Intervals for Isotope Analysis in the Atlantic Bluefin Tuna

2020/12/08

New publication in Nature Communications
Extraterrestrial hexamethylenetetramine in meteorites—a precursor of prebiotic chemistry in the inner solar system

2020/12/03

New publication in Frontiers in Earth Science
A Systematic Assessment of Stable Sr Isotopic Compositions of Vent Fluids in Arc/Back-Arc Hydrothermal Systems: Effects of Host Rock Type, Phase Separation, and Overlying Sediment

2020/12/01

Call for applications for Researcher(II) or Postdoctoral Researcher (closing date: January 26, 2021) (closed)

2020/11/10

New publication in Quaternary Science Reviews
Fossils in Iberian prehistory: A review of the palaeozoological evidence

2020/11/07

New publication in Fisheries Science
The influence and impact of tsunamis on the microorganism assembly of Nagatsura-Ura Lagoon, Miyagi, northeastern Japan

2020/11/06

New publication in The Bioarchaeology of Urbanization
Reconstructed Weaning Ages in Urbanized Cities of Premodern Japan: Insight into the Relationship Between Employment and Fertility

2020/10/31

New publication in Journal of Eukaryotic Microbiology
Abundant Chitinous Structures in Chilostomella (Foraminifera, Rhizaria) and Their Potential Functions

2020/09/14

New publication in Progress in Earth and Planetary Science
A new insight into isotopic fractionation associated with decarboxylation in organisms: implications for amino acid isotope approaches in biogeoscience

2020/09/12

New publication in Cellulose
Cellulose dissolution and regeneration using a non-aqueous, non-stoichiometric protic ionic liquid system

2020/09/11

New publication in American Journal of Physical Anthropology
Blurred time resolution of tooth dentin serial sections

2020/09/05

New publication in Paleoceanography and Paleoclimatology
Mediterranean Overflow Over the Last 250 kyr: Freshwater Forcing From the Tropics to the Ice Sheets

2020/09/04

New publication in Science Advances
Ancient Beringian paleodiets revealed through multiproxy stable isotope analyses

2020/08/26

New publication in Ecosphere
Magnesium and zinc stable isotopes as a new tool to understand Mg and Zn sources in stream food webs

2020/08/25

New publication in Carbohydrate Polymers
Primary structure of gum arabic and its dynamics at oil/water interface

2020/08/24

New publication in Water
Anthropogenic impact on tropical perennial river in south India: Snapshot of carbon dynamics and bacterial community composition

2020/08/07

New publication in Frontiers in Astronomy and Space Sciences
Returning Samples From Enceladus for Life Detection

2020/07/30

New publication in Chemistry Letter
Pressure-induced Esterification Reaction between Phosphoric Acid and Methanol

2020/7/28

New publication in Scientific Reports
Marine Os isotopic evidence for multiple volcanic episodes during Cretaceous Oceanic Anoxic Event 1b

2020/07/24

New publication in Chemical Geology
Magnesium isotopic composition of submarine vent fluids from arc and back-arc hydrothermal systems in the western Pacific

2020/07/21

New publication in Analytical Chemistry
Quantification and carbon and nitrogen isotopic measurements of heme B in environmental samples

2020/07/14

New publication in Frontiers in Marine Science
Radiocarbonscapes of Sedimentary Organic Carbon in the East Asian Seas

2020/07/12

New publication in Rapid Communications in Mass Spectrometry
A method for stable carbon isotope measurement of underivatized individual amino acids by multi‐dimensional high‐performance liquid chromatography and elemental analyzer/isotope ratio mass spectrometry

2020/07/11

New publication in Earth, Planets and Space
Chemical assessment of the explosive chamber in the projector system of Hayabusa2 for asteroid sampling

2020/06/30

New United States patent
Preprocessing apparatus for gas analysis (PDF)

2020/06/18

New publication in Environmental Science & Technology
Anthropogenic Osmium in Macroalgae from Tokyo Bay Reveals Widespread Contamination from Municipal Solid Waste

2020/07/06

New publication in Limnology and Oceanography
Combined use of radiocarbon and stable carbon isotopes for the source mixing model in a stream food web

2020/07/06

"Group Photo (2020)" is on the Member page

2020/07/04

New publication in Marine Biology
Discrimination of eastward trans-Pacific migration of the Pacific bluefin tuna Thunnus orientalis through otolith δ13C and δ18O analyses

2020/06/16

New publication in Earth and Planetary Science Letters
Ferromagnetic resonance of magnetite biominerals traces redox changes

2020/06/01

New publication in Earth and Planetary Science Letters
Island-wide variation in provenance of riverine sedimentary organic carbon: A case study from Taiwan

2020/05/25

New publication in Frontiers in Earth Science
Soothsaying DOM: A Current Perspective on the Future of Oceanic Dissolved Organic Carbon

2020/05/05

New publication in Frontiers in Earth Science
Theoretical Amino Acid-Specific Radiocarbon Content in the Environment: Hypotheses to Be Tested and Opportunities to Be Taken

2020/04/30

New publication in Radiocarbon
Compound-Specific Radiocarbon Analysis of Organic Compounds from Mount Fuji Proximal Lake (Lake Kawaguchi) Sediment, Central Japan

2020/04/23

New publication in Aquatic Geochemistry
Seasonal and Spatial Variations of Chemical Weathering in the Mekong Basin: From the Headwaters to the Lower Reaches

2020/03/25

New publication in Ecology Letters
Tracking long-distance migration of marine fishes using compound-specific stable isotope analysis of amino acids

Press release
A memory of long-distance migration engraved on vertebrae of chum salmon

2020/3/20

New publication in Frontiers in Marine Science
Liquid Chromatographic Isolation of Individual Amino Acids Extracted From Sediments for Radiocarbon Analysis

2020/03/17

New publication in ACS Applied Polymer Materials
Moldable crystalline α-chitin hydrogel with toughness and transparency toward ocular applications

2020/03/14

New publication in Oecologia
Isotopic evidence of arbuscular mycorrhizal cheating in a grassland gentian species

2020/03/10

New publication in Researches in Organic Geochemistry
Difference in the foraging strategy between daphnia and copepods in Shirakoma-ike: evidence from 15N / 14N of amino acids

2020/02/15

New publication in Quaternary Science Reviews
High time-resolution alkenone paleotemperature variations in Tokyo Bay during the Meghalayan: Implications for cold climates and social unrest in Japan

2020/02/13

New publication in Science Advances
Nanocrystals as phenotypic expression of genotypes - An example in coralline red algae

Press release
Untangling the family-lineages of calcifying red algae

2020/02/03

New publication in Paleoceanography and Paleoclimatology
Monsoons, Upwelling, and the Deoxygenation of the Northwestern Indian Ocean in Response to Middle to Late Miocene Global Climatic Shifts

2020/01/30

New publication in Organic Geochemistry
Genomic and geochemical identification of the long-chain alkenone producers in the estuarine Lake Takahoko, Japan: Implications for temperature reconstructions

2020/01/29

New publication in American Journal of Science
Comment on carbon dioxide emissions by rock organic carbon oxidation. American Journal of Science

2020/01/27

New publication in New Phytologist
Some mycoheterotrophic orchids depend on carbon from dead wood: Novel evidence from a radiocarbon approach

2020/01/21

New publication in Analytical Chemistry
Evaluation of δ13C and δ15N uncertainties associated with the compound-specific isotope analysis of geoporphyrins

2020/01/21

New publication in Geophysical Research Letters
Towards a robust Plio-Pleistocene chronostratigraphy for ODP Site 762

2020/01/16

New publication in Nature
Isolation of an archaeon at the prokaryote-eukaryote interface

Press release
Capturing our closest prokaryotic relative reveals insight into the origin of Eukaryotes

2020/01/16

New publication in Quaternary Science Reviews
Timing and pathways of East Antarctic Ice Sheet retreat

2019

2019/12/23

New publication in Analytical Chemistry
Rapid and precise analysis of carbon dioxide clumped isotope composition by tunable infrared laser differential spectroscopy

2019/12/19

New publication in Geochimica et Cosmochimica Acta
Primordial organic matter in the xenolithic clast in the Zag H chondrite: Possible relation to D/P asteroids

2019/12/07

New publication in Journal of Geophysical Research: Solid Earth
Relative sea‐level changes over the past centuries in the central Ryukyu Arc inferred from coral microatolls

2019/11/19

New publication in Proceedings of the National Academy of Sciences
Extraterrestrial ribose and other sugars in primitive meteorites

2019/11/18

New publication in Scientific Reports
Glacial Indonesian Throughflow weakening across the Mid-Pleistocene Climatic Transition

2019/11/15

New publication in Journal of Asian Earth Sciences
Archaeal lipid biomarker as a tool to constrain the origin of methane at ancient methane seeps: insight into subsurface fluid flow in the geological past

2019/11/12

New publication in Nature Climate Change
Response of N2O production rate to ocean acidification in the western North Pacific

2019/10/31

New publication in Frontiers in Earth Science
Selective recording of tectonic forcings in an Oligocene/Miocene submarine channel system: Insights from new age constraints and sediment volumes from the Austrian Northern Alpine Foreland Basin

2019/10/21

New publication in American Journal of Physical Anthropology
Societal perceptions and lived experience: infant feeding practices in premodern Japan

2019/10/18

New publication in Global and Planetary Change
Late Pleistocene oceanographic and depositional variations along the Wilkes Land margin (East Antarctica) reconstructed with geochemical proxies in deep-sea sediments

2019/10/11

New publication in ACS Earth and Space Chemistry
Peptide Synthesis under the Alkaline Hydrothermal Conditions on Enceladus

2019/10/08

New publication in Biogeosciences
Strong correspondence between nitrogen isotope composition of foliage and chlorin across a rainfall gradient: implications for paleo-reconstruction of the nitrogen cycle

2019/10/04

New publication in Science
Mineralogical control on the fate of continentally derived organic matter in the ocean

2019/09/30

New publication in Progress in Nature Communications
Nucleobase synthesis in interstellar ices

2019/09/19

New publication in Molecular Ecology
Comparative study of nutritional mode and mycorrhizal fungi in green and albino variants of Goodyera velutina, an orchid mainly utilizing saprotrophic rhizoctonia

2019/09/15

New publication in Nuclear Instruments in Physics Research B
Small- to ultra-small-scale radiocarbon measurements using newly installed AMS at the University of Tokyo

2019/09/06

New publication in Scientific Reports
Palaeoproteomic identification of breast milk protein residues from the archaeological skeletal remains of a neonatal dog

2019/08/31

New publication in Australian Palaeontological Mamoris
Carbon and oxygen isotopic composition in lepralioid and umbonuloid frontal shields of two adeonid bryozoans from southwestern Japan

2019/08/30

New publication in Progress in Earth and Planetary Science
Biomarker records and mineral compositions of the Messinian halite and K-Mg salts from Sicily

2019/07/30

New publication in Geochemistry, Geophysics, Geosystems
Magnesium Isotopic Composition of Tests of Large Benthic Foraminifers: Implications for Biomineralization

2019/07/18

New publication in Marine Ecology Progress Series
Nutritional source of meio- and macrofauna athydrothermal vents and adjacent fields: natural-abundance radiocarbon and stable isotope analyses

2019/07/10

New publication in Analytical Sciences
Rapid purification of alkali and alkaline-earth elements for isotope analysis (δ7Li, δ26Mg, 87Sr/86Sr, and δ88Sr) of rock samples using borate fusion followed by ion chromatography with a fraction collector system

2019/06/21

New publication in Anthropological Science
Carbon, nitrogen, and sulfur stable isotopic reconstruction of human diet in a mountainous woodland village in Sendaiji in premodern Japan

2019/06/18

New publication in Organic Geochemistry
Radiocarbon age of different photoreactive fractions of freshwater dissolved organic matter

2019/05/31

New publication in Frontiers in Earth Science
Partitioning and chemical environments of minor elements in individual large benthic foraminifera cultured in temperature-controlled tanks

2019/05/28

New publication in Springer Book
Mesophotic Coral Ecosystems

2019/05/15

"Group Photo (2019)" is on the Member page

2019/04/23

New publication in ACS Earth and Space Chemistry
Magnesium isotope fractionation during synthesis of chlorophyll a and bacteriochlorophyll a of benthic phototrophs in hypersaline environments

2019/04/15

New publication in Journal of Archaeological Science
Collagen turnover and isotopic records in cortical bone

2019/04/15

New publication in Limnology and Oceanography: Methods
Using segmental isotope analysis of teleost fish vertebrae to estimate trophic discrimination factors of bone collagen

2019/04/15

New publication in Nature Ecology & Evolution
Reply to ‘Dating on its own cannot resolve hominin occupation patterns’ and ‘No reliable evidence for a very early Aurignacian in Southern Iberia’

2019/04/10

New publication in Frontiers in Earth Science
Diazotrophy drives primary production in the organic-rich shales deposited under a stratified environment during the Messinian salinity crisis (Vena del Gesso, Italy)

2019/04/02-03

J-DESC Workshop “Scientific Ocean Drilling beyond 2023”

2019/03/27

New publication in Paleoceanography and Paleoclimatology
Timing and pacing of Indonesian Throughflow restriction and its connection to Late Pliocene climate shifts

2019/03/06

New publication in Scientific Reports
Efficient recycling of nutrients in modern and past hypersaline environments

2019/02/28

New publication in Journal of Molluscan Studies
Sexual dimorphism in shell growth of the oviparous boreal scallop Swiftopecten swiftii (Bivalvia: Pectinidae)

2019/02/19

New publication in Quaternary Science Reviews
Shellfish collection on the westernmost Mediterranean, Bajondillo cave (～160-35 cal kyr BP): A case of behavioral convergence?

2019/02/07

Pulsed terahertz radiation offers a new tool for quantifying the composition of carbonate minerals.

2019/01/28

New publication in Progress in American Journal of Physical Anthropology
Amino acid 15N analysis reveals change in the importance of freshwater resources between the hunter‐gatherer and farmer in the Neolithic upper Tigris.

2019/01/23

New publication in Geochemical Journal
Molecular and Isotopic Compositions of Nitrogen-Containing Organic Molecules Formed During UV-Irradiation of Simulated Interstellar Ice.

2019/01/21

New publication in Nature Ecology & Evolution
An early Aurignacian arrival in southwestern Europe.

2019/01/17

New publication in Progress in Earth and Planetary Science
Perspective on the response of marine calcifiers to global warming and ocean acidification - Behavior of corals and foraminifera in a high CO2 world “hot house”.

2019/01/17

New publication in Ecological Monographs
Enhancing insights into foraging specialization in the world's largest fish using a multi‐tissue, multi‐isotope approach.

2019/01/14

New publication in Meteoritics & Planetary Science
Further characterization of carbonaceous materials in Hayabusa‐returned samples to understand their origin.

2019/01/10

New publication in Journal of Agricultural Meteorology
Monthly changes in pCO2 in the Ganges River: implications for carbon release from soil to the atmosphere via inland waters.

2019/01/10

New publication in Earth, Planets and Space
Amino acids on witness coupons collected from the ISAS/JAXA curation facility for the assessment and quality control of the Hayabusa2 sampling procedure.

2019/01/07

New publication in Analytical Chemistry
Compound-Specific Radiocarbon Analysis (CSRA) by Elemental Analyzer-Accelerator Mass Spectrometry (EA-AMS): Precision and Limitations.

2018

2018/12/21

New publication in Geochemistry, Geophysics, Geosystems
A new seismic stratigraphy in the Indian‐Atlantic Ocean gateway resembles major paleo‐oceanographic changes of the last 7 Ma.

2018/12/06

New publication in Marine Ecology Progress Series
Chemoautotrophic food availability influences copepod assemblage composition at deep hydrothermal vent sites within sea knoll calderas in the northwestern Pacific.

2018/12/01

New publication in Geochemistry, Geophysics, Geosystems
Indian Monsoonal Variations During the Past 80 Kyr Recorded in NGHP‐02 Hole 19B, Western Bay of Bengal: Implications From Chemical and Mineral Properties.

2018/12/01

New publication in Quaternary Science Reviews
Extraordinary cold episodes during the mid-Holocene in the Yangtze delta: Interruption of the earliest rice cultivating civilization.

2018/11/21

New publication in Marine and Freshwater Research
Assessing alpha and beta diversities of benthic macroinvertebrates and their environmental drivers between watersheds with different levels of habitat transformation in Japan.

2018/11/01

New publication in Proceedings of the Integrated Ocean Drilling Program
Data report: IODP Site U1387: the revised splice between Sections U1387B-18X-3 and U1387C-8R-3 (>171.6 mcd).

2018/10/30

New publication in Limnology and Oceanography Letters
Biogeochemical tools for characterizing organic carbon in inland aquatic ecosystems.

2018/10/19

New publication in Climate of the Past
Vegetation and geochemical responses to Holocene rapid climate change in Sierra Nevada (southeastern Iberia): The Laguna Hondera record.

2018/10/08

New Publication in Quaternary Science Reviews
The enigma of rare Quaternary oolites in the Indian and Pacific Oceans: A result of global oceanographic physicochemical conditions or a sampling bias?

2018/10/05

New Publication in Antarctic Science
Suspected meteorite fragments in marine sediments from East Antarctica.

2018/09/24

New publication in Scientific Reports
Insight into anaerobic methanotrophy from 13C/12C- amino acids and 14C/12C-ANME cells in seafloor microbial ecology.

2018/09/19

New Publication in Nature
Ice loss from the East Antarctic Ice Sheet during late Pleistocene interglacials.

2018/09/16

New Publication in Analytical Chemistry
Improved method for isolation and purification of underivatized amino acids for radiocarbon analysis.

2018/09/10

New Publication in Limnology and Oceanography: Methods
A new analytical method for determination of the nitrogen isotopic composition of methionine: Its application to aquatic ecosystems with mixed resources.

2018/09/06

New Publication in Quaternary Science Reviews
Orbital-scale environmental and climatic changes recorded in a new ∼200,000-year-long multiproxy sedimentary record from Padul, southern Iberian Peninsula.

2018/08/31

New Publication in Earth and Planetary Science Letters
The amplifying effect of Indonesian Throughflow heat transport on Late Pliocene Southern Hemisphere climate cooling.

2018/08/31

New Publication in Marine and Petroleum Geology
Origin of low-chloride fluid in sediments from the eastern continental margin of India, results from the National Gas Hydrate Program Expedition 02.

2018/08/24

New publication in Food Hydrocolloids
The mechanism of salt effects on starch gelatinization from a statistical thermodynamic perspective.

2018/08/24

New Publication in Journal of Chromatography B
Quantitative analysis of underivatized amino acids in the sub- to several-nanomolar range by ion-pair HPLC using a corona-charged aerosol detector (HPLC–CAD).

2018/07/27

New publication in Pan Africa News
Four Cases of Grooming Sessions between Chimpanzees and Guenons at the Kalinzu Forest Reserve, Uganda.

2018/07/24

New Publication in Ecology and Evolution
Compound‐specific isotope analysis of benthic foraminifer amino acids suggests microhabitat variability in rocky‐shore environments.

2018/07/11

New Publication in Geophysical Research Letters
Monsoonal forcing of European ice‐sheet dynamics during the Late Quaternary.

2018/07/10

New Publication in Climate of the Past
Paleoceanography and ice sheet variability offshore Wilkes Land, Antarctica – Part 1: Insights from late Oligocene astronomically paced contourite sedimentation.

2018/07/10

New Publication in Geochemistry, Geophysics, Geosystems
Nitrate isotope distribution in the subarctic and subtropical North Pacific.

2018/07/09

New Publication in Geochimica et Cosmochimica Acta
Sulfur speciation in growth layers of shell cross section of the long-lived bivalve Margaritifera laevis using synchrotron spectromicroscopy analysis.

2018/07/09

New Publication in PNAS
1.1-billion-year-old porphyrins establish a marine ecosystem dominated by bacterial primary producers.

2018/07/09

New Publication in Nature
A two-million-year-long hydroclimatic context for hominin evolution in southeastern Africa.

2018/06/25

New Publication in Angewandte Chemie International Edition
Molecular Recognition of the Hybrid‐2 Human Telomeric G‐Quadruplex by Epiberberine: Insights into Conversion of Telomeric G‐Quadruplex Structures.

2018/06/25

New publication in Journal of Archaeological Science
Reports : Effects of lipid extraction and different collagen extraction methods on archaeological fish bones and its implications for fish bone diagenesis.

2018/06/18

New Publication in Microbes and Environment
Geochemical and microbiological evidence for microbial methane production in deep aquifers of the cretaceous accretionary prism.

2018/06/12

New Publication in Global and Planetary Change
Millennial-scale cyclical environment and climate variability during the Holocene in the western Mediterranean region deduced from a new multi-proxy analysis from the Padul record (Sierra Nevada, Spain).

2018/05/28

New Publication in Ecological Research
Global dataset for carbon and nitrogen stable isotope ratios of lotic periphyton.

2018/05/25

New Publication in Ecological Research
Use of compound-specific nitrogen isotope analysis of amino acids in trophic ecology: assumptions, applications, and implications.

2018/05/24

New Publication in Plankton and Benthos Research
Piscivory of the Japanese giant box jellyfish Morbakka virulenta.

2018/05/24

New Publication in PLOS ONE
Potential technique for improving the survival of victims of tsunamis.

2018/05/18

New Publication in International Journal of Biological Macromolecules
Cellulose hydrogel with tunable shape and mechanical properties: From rigid cylinder to soft scaffold.

2018/05/17

New Publication in Ecology Letters
Using food network unfolding to evaluate food–web complexity in terms of biodiversity: theory and applications.

2018/05/17

New Publication in Earth and Planetary Science Letters
Pliocene deglacial event timelines and the biogeochemical response offshore Wilkes Subglacial Basin, East Antarctica.

2018/05/10

New Publication in Analytical Science
Development of a method to isolate glutamic acid from foodstuffs for a precise determination of their stable carbon isotope ratio.

2018/04/17

New Publication in Marine Geology
Identification of tsunami deposits using a combination of radiometric dating and oxygen-isotope profiles of articulated bivalves.

2018/04/10

"Group Photo (2018)" is on the Member page

2018/04/02

New Publication in Meteoritics&Planetary Science
An experimental study on impact‐induced alterations of planetary organic simulants

2017

2017/05/02

"Group Photo (2017)" is on the Member page

2017/01/27

Foraminifera Pumps Proton for Shell Formation
- To buffer seawater against pH changes due to ocean acidification -

2016

2016/07/11

Yuuko Takizawa wins Best Poster Award at “Biomarkers and Molecular Isotopes: International Workshop of Organic Geochemistry”

2015

2015/08/21

Dr. Haruna Sugahara awarded “The Geochemical Journal Award 2015” at Goldschmidt2015

2015/07/24

Exploring the limits of life in the deep biosphere
~Microbes discovered nearly 2.5 kilometers below the ocean floor~

2014

2014/10/27

How does Orbital Variations Affect Ancient Antarctica?
~East Antarctic Ice Volume Change during Pliocene and Early Pleistocene~

2014/06/13

Mediterranean Outflow and Its Global Significance
~ History of Mediterranean Outflow Water and Climate Changes ~