NEWSROOM

Enzymatic Production of Functional Chemicals from Wood Lignin
- New development of white biotechnology -

Successful Sea Trials of New Ocean Mineral Resources Exploration System
- Enabling highly efficient ocean mineral resource sampling using ROV -

Ascending Mantle Plume in the Society Hotspot
- A step to elucidate mantle dynamics -

Precursory Signal for Stagnant Bonin Slab to Penetration into Lower Mantle
- Implications of Unusually Deep Bonin Islands Earthquake on May 30, 2015 -

International Ocean Discovery Program (IODP) Expedition 366
- Mariana Convergent Margin & South Chamorro Seamount -

International Continental Scientific Drilling Program Starts Oman Drilling Project
- To understand core-mantle boundary materials and properties -

The 2016 Mie-ken Nanto-oki Earthquake Occurred Along a Plate Boundary Last Active in 1944
- New findings from an integrated seafloor and sub-seafloor monitoring network -

Postseismic Slip after 2011 Tohoku Earthquake Detected by Seafloor Observations
- Significant insight to understand the generation process of large earthquakes -

Thermal Interaction of Mantle and Core Reproduced with Newly Developed Numerical Model
- Earth's Cooling Mechanisms Elucidated -

Chikyu Okinawa Drilling Expedition
“Hydrothermal Sediments in Okinawa Trough III”

International Ocean Discovery Program Expedition 370 “T-Limit of the Deep Biosphere off Muroto” Completed

Lavas from Petit-spot Volcanoes Presents Direct Evidence of Metasomatism
- Clue to elucidate mantle heterogeneity and plate -

Mechanism of Resilience in Communities with Different Size Distributions
-Underlying mechanism of biodiversity-productivity relationships Clarified -

High-temperature Limit for Life beneath Deep-sea Vent
- Shed new lights on the distribution of the boundary microbial community -

Ocean–atmosphere Coupling Model Better Reproduces Madden–Julian Oscillation
- Towards more accurate climate prediction -

International Ocean Discovery Program (IODP) Expedition 363
- Neogene and Quaternary records of Western Pacific Warm Pool paleoceanography -

New Hypothesis of Birth of Continents
- Nishinoshima may be recreating the continental crust formation from a waterworld in the early Earth -

New Theory for Mantle Recycling
- Traces of carbonates found in basalts from Earth's deep mantle -

International Ocean Discovery Program Expedition 370 “T-Limit of the Deep Biosphere off Muroto”
- Deciphering factors that constrain the extent of the deep biosphere in a subduction zone -

Significant Correlations between Wet Removal Rates of Black Carbon and Accumulated Precipitation
- New findings for more accurate evaluation of black carbon impacts on global warming -

Dense Field of Ferromanganese Nodules Found in Japanese Exclusive Economic Zone around Minamitorishima Island
- Clue to comprehensive understanding of genesis of oxide mineral resources -

International Ocean Discovery Program (IODP) Expedition 362
- The Sumatra Seismogenic Zone -

New Supercontinent “Amasia” Could be Formed in Northern Hemisphere Within ca. 250 Million Years
- Significant advancement in understanding what drives continental drift -

Tsunamigenic subduction structure identified in Southern Ryukyu Trench
- Based on observation of plate boundary faults and low-frequency earthquakes -

Siberian Larch Forests Can Persist Despite Permafrost Melting under Forecasted Warming Trends
- A new model presents more accurate prediction of global climate changes -

Miyagi-ken-Oki Earthquake May Occur within Shorter Time Interval
- Suggested by successful reproduction of the 2011 Tohoku-Oki earthquake characteristics -

Symbiotic Bacteria Found on Outer Surface of Deep-sea Clam Eggs
-Successful on-board spawning induction of Calyptogena Okutanii -

Decrease in Terrestrial Water Storage in Arctic Region
- Tundra is rapidly drying up due to summer warming -

Arctic Marine Biological Hotspot Supported by Underwater Storage House of Organic Matters
- First observation of annual variations in phytoplankton biomass -

Chikyu Completes International Ocean Discovery Program (IODP) Expedition 365

Deep-sea microorganisms preferentially utilize D-amino acids
- Mystery of microorganisms in deep-sea world -

New Method Developed for Multiyear Climate Prediction
- Improvement of multiyear climate prediction by incorporating both oceanic and atmospheric observations into climate model -

Greenery Effect in Tokyo Bay Zone Analyzed by Ultra-high-resolution Numerical Simulations
- Contribute to sustainable environmental measures towards and beyond 2020 Tokyo Olympics and Paralympics -

Discovery of Natural MgSiO3 Tetragonal Garnet in Shocked Chondritic Meteorite
- A new clue to explore asteroidal impact events and Earth's mantle mineralogy -

Chikyu International Ocean Discovery Program (IODP) Expedition 365: NanTroSEIZE Shallow Megasplay LTBMS

High-performance Simulations of Global Seismic Wave Propagation with Unprecedented Accuracy of 1.2 Seconds Seismic Period
- A big progress for Earth's internal structure research using theoretical seismograms -

Sulfide-rich Chimney on Artificial Seafloor Rapidly Growing
-Kuroko-ore cultivation project to start on a full-scale-

Snowfall Induces Arctic River Ice Decrease
- Quantitative Evaluation of Global Warming Impacts on River Ice -

Resemblance of Whale Fall Fauna between Atlantic and Pacific Ocean
-SHINKAI 6500 research provides clue to elucidate
deep-sea chemosynthetic communities-

World's First Ship-based Observations of Atmospheric Black Carbon Particles over Arctic Ocean
-Towards more sophisticated prediction of climate changes around the globe-

Cobalt-rich Ferromanganese Crust Extended beyond 5,500m Depth in Ocean
- A big leap for elucidation of genesis -

Chikyu Okinawa Drilling Expedition
“Hydrothermal Sediments in Okinawa Trough II”

Parallel Worlds Could Exist in Ocean Circulations
-Ensemble experiments analyze interannual variability of the Kuroshio Extension-

Methane Emission Level and Trend by Region May Need to be Revised
~New simulations suggest overestimation in East Asia and tropical regions~

International Ocean Discovery Program (IODP) Expedition 361
~Southern African Climates & Agulhas Current Density Profile~

Argo’s Global Array of Profiling Floats Revealed Ocean Changes
-Fifteen years of ocean observations and further challenges-

“Dakar Niño/Niña” Phenomenon Identified for First Time off West African Coast
~A new path to seasonal predictability~