Hole C0002C, Expedition 315

Lineage

This URL provides the access to the most recent output from the database. The output is being overwritten as often as possible.

This data set was output from J-CORES database by using its complete Bulk Export function Version 1.9.9 from 2016-11-16T19:17:42Z till 2016-11-16T19:18:02Z. The specification of the outputs is available to be referred. Bulk Export gives a file bulk.csv with various attachment files (e.g. image files). Files bulk-something.csv are generated by picking some kinds of data from bulk.csv. Files something.zip consist of bulk-something.csv and related attachment files. Files bulk-something.csv are in character encoding UTF-8 with line ending characters CRLF. The database has a flexibility to store numerical/text values and attached files for user-defined parameters, which are output into User-Defined Parameter column group in bulk.csv.

Data file index

Parameter definitions

The user-defined parameters are listed with their definitions as the followings.

X-ray CT scanning

X-ray CT scanned images for core sections. The right-handed coordinate system is applied to each core section as the followings. Y axis is from the working half toward the archive half. Z axis is from the core bottom toward the top. (x, y, z) = (0, 0, 0) at the center of the top of the core section.

X-ray CT scanning::coronal image

The cross section at the boundary of the working and archive halves of the core section, looking the archive half side. In other words, the x-z plane (y = 0), looking to the negative y. The image is created by compiling the series of axial images, at each of which z is a constant. The file is formatted in DICOM.

X-ray CT scanning::top margin [pixels]

Height of the margin at the top of the image. Not always integer. number of pixels in raster graphics

X-ray CT scanning::bottom margin [pixels]

Height of the margin at the bottom of the image. Not always integer. number of pixels in raster graphics

X-ray CT scanning::each side margin [pixels]

Width of the margin at each of the right and the left of the image. Not always integer. number of pixels in raster graphics

split section image

Images for split core sections. At the top and the right there are no margins.

split section image::line scanned image

A surface image acquired by a line scan camera.

split section image::bottom margin [pixels]

Height of the margin at the bottom of the image. Not always integer. number of pixels in raster graphics

VCD microscopic lithology description

Description of lithology by microscopic observation for visual core description (VCD).

VCD microscopic lithology description::lithology

Lithology and optionally followed by a pair of square brackets, which contains the lithology defined by [http://sio7.jamstec.go.jp/j-cores.data/vcd.selectee] and the fragment identifier as a part of the URL for the definition.

VCD microscopic lithology description::sediment consolidation

VCD microscopic lithology description::component: foraminifers, pelagic skeleton [%]

Foraminifers, sub-classification of Calcareous skeletons, sub-classification of Pelagic grain. percentage

VCD microscopic lithology description::component: nannofossils, pelagic skeleton [%]

Nannofossils, sub-classification of Calcareous skeletons, sub-classification of Pelagic grain. percentage

VCD microscopic lithology description::component: diatom, pelagic skeleton [%]

Diatom, sub-classification of Siliceous skeletons, sub-classification of Pelagic grain. percentage

VCD microscopic lithology description::component: siliceous sponge spicule, pelagic skeleton [%]

Siliceous sponge spicule, sub-classification of Siliceous skeletons, sub-classification of Pelagic grain. percentage

VCD microscopic lithology description::component: siliciclastic lithic grain [%]

Lithic grain, sub-classification of Siliciclastic grain. percentage

VCD microscopic lithology description::component: siliciclastic orthopyroxene [%]

Orthopyroxene, sub-classification of Minerals, sub-classification of Siliciclastic grain. percentage

VCD microscopic lithology description::component: siliciclastic plagioclase [%]

Plagioclase, sub-classification of Minerals, sub-classification of Siliciclastic grain. percentage

VCD microscopic lithology description::component: siliciclastic quartz [%]

Quartz, sub-classification of Minerals, sub-classification of Siliciclastic grain. percentage

VCD microscopic lithology description::component: volcaniclastic pumice [%]

Pumice, sub-classification of Volcaniclastic grain. percentage

VCD microscopic lithology description::component: volcaniclastic vitric grain (shards/vitriclast) [%]

Vitric grain (shards / vitriclast), sub-classification of Volcaniclastic grain. percentage

VCD microscopic lithology description::sand fraction [%]

0.0625--2.0 mm. percentage

VCD microscopic lithology description::silt fraction [%]

0.0039--0.0625 mm. Sub-classification of mud (0.0--0.0625 mm). percentage

VCD microscopic lithology description::clay fraction [%]

0.0--0.0039 mm. Sub-classification of mud (0.0--0.0625 mm). percentage

occurrence of calcareous nannofossils (Exp. 315)

Occurrence of calcareous nannofossils in bulk samples. Abundance: A, C, C-A, C-F, F, F-C, R, R-F. Occurrence: A, C, D, F, R. Preservation: E-P, G, G-M, M, M-G, M-P, P, P-M.

occurrence of calcareous nannofossils (Exp. 315)::total abundance

Total abundance.

occurrence of calcareous nannofossils (Exp. 315)::fossil presevation

Fossil presevation.

occurrence of calcareous nannofossils (Exp. 315)::Calcidiscus leptoporus

occurrence of calcareous nannofossils (Exp. 315)::Emiliania huxleyi

occurrence of calcareous nannofossils (Exp. 315)::Florisphaera profunda

occurrence of calcareous nannofossils (Exp. 315)::Gephyrocapsa spp. medium >3.5-4 microns

occurrence of calcareous nannofossils (Exp. 315)::Gephyrocapsa spp. medium II (>4 to 5.5 microns)

occurrence of calcareous nannofossils (Exp. 315)::Gephyrocapsa spp. smaller 3.5 microns

occurrence of calcareous nannofossils (Exp. 315)::Helicosphaera carteri

(Wallich, 1877) Kamptner 1954

occurrence of calcareous nannofossils (Exp. 315)::Helicosphaera walichii

occurrence of calcareous nannofossils (Exp. 315)::Umbellosphaera tenuis

occurrence of calcareous nannofossils (Exp. 315)::Umbilicosphaera foliosa

occurrence of calcareous nannofossils (Exp. 315)::Umbilicosphaera sibogae

MSCL; section

Measurements for core sections by using a Multi Sensor Core Logger (MSCL).

MSCL; section::section half

Whether whole-round core sections or split halves of core sections and which side of split halves, for which the measurement is conducted. The values for this parameter have to be chosen from `whole-round', `archive', `working' and `either half'.

MSCL; section::GRA density: horizontal sensor direction [g/cm3]

Density calculated with Gamma Ray Attenuation (GRA) method. The sensor, a set of an RI source (137Cs) and a scintilation detector, is attached in the horizontal direction on the track of the Multi Sensor Core Logger (i.e., gamma ray beam passes through at the split point between working and archive halves). gram per cubic centi-meter

MSCL; section::magnetic susceptibility: loop sensor, 80 mm (x0.00001 SI)

Volume magnetic susceptibility in SI units by using a MS2C core logging sensor, Bartington Instruments Ltd. Loop internal diameter of the sensor is 80 mm. The values are derived by multiplying the actual values by 100000. dimensionless quantity

MSCL; section::P-wave velocity: ARC transducer, 230 kHz [m/s]

Measured P-wave velocity. The P-wave transducer is an oil filled acoustinc rolling contract (ARC) transducer. A set of the transmitter and a receiver, is attached in the horizontal direction on the track of the Multi Sensor Core Logger (i.e., P-wave passes through at the split point between working and archive halves). P-wave pulse which is an ultrasonic compressional pulse generated by a piezoelectric crystal is 230 kHz. meter per second

MSCL; section::P-wave signal amplitude: ARC transducer, 230 kHz

Measured P-wave signal amplitude. The P-wave transducer is an oil filled acoustinc rolling contract (ARC) transducer. A set of the transmitter and a receiver, is attached in the horizontal direction on the track of the Multi Sensor Core Logger (i.e., P-wave passes through at the split point between working and archive halves). P-wave pulse which is an ultrasonic compressional pulse generated by a piezoelectric crystal is 230 kHz. dimensionless quantity

MSCL; section::electrical resistivity [ohm m]

Measured electrical resistivity. ohm by meter

MSCL; section::natural gamma radiation: detector set #1, 80 mm [CPS]

Counts per seconds of detected gamma ray photons. This count is a total of four scintillation detectors. Each of the four detectors is combined with a multichannel analyser. They are attached in a cross shape on a central lead cube which is on the track of the Multi Sensor Core Logger. Serial number of the each detector is; the upper side (a detector at the direction of 12 o'clock from the view in the core movement direction) is 04L033, the right side (at 3 o'clock) is 04L028, the lower side (at 6 o'clock) is 04L034, and the left side (at 9 o'clock) is 04L041. The aperture of the central lead cube is 80 mm. counts per second

thermal conductivity; section

Thermal conductivity measurements for core sections. Thermal conductivity is the average value of those by iterative measurements.

thermal conductivity; section::section half

Whether whole-round core sections or split halves of core sections and which side of split halves, for which the measurement is conducted. The values for this parameter have to be chosen from `whole-round', `archive', `working' and `either half'.

thermal conductivity; section::thermal conductivity [W/(m K)]

Measured thermal conductivity value. watts per kelvin per meter

thermal conductivity; section::number of iterative measurements

How many iterative measurements are conducted for the measurement. dimensionless quantity

thermal conductivity; section::thermal conductivity probe

Type of the probe used for the thermal conductivity measurement.

thermal conductivity; section::thermal conductivity probe serial number

Serial number of the probe used for the thermal conductivity measurement.

thermal conductivity iteration; section

Each iteration of thermal conductivity measurements for core sections.

thermal conductivity iteration; section::section half

Whether whole-round core sections or split halves of core sections and which side of split halves, for which the measurement is conducted. The values for this parameter have to be chosen from `whole-round', `archive', `working' and `either half'.

thermal conductivity iteration; section::iteration number

Sequential number to distinguish the iterative measurement, which starts from 1. dimensionless quantity

thermal conductivity iteration; section::thermal conductivity [W/(m K)]

Measured thermal conductivity value. watts per kelvin per meter

thermal conductivity iteration; section::LET: TK04

Logarithm of the extreme time (LET) value of the best solution (TK04 User's Manual; TeKa, Berlin, Germany). dimensionless quantity

thermal conductivity iteration; section::number of solutions: TK04

The total number of solutions found for the heating curve (TK04 User's Manual; TeKa, Berlin, Germany). dimensionless quantity

thermal conductivity iteration; section::time start: TK04 [s]

Start time of the evaluation interval the best solution calculated from (TK04 User's Manual; TeKa, Berlin, Germany). second

thermal conductivity iteration; section::time length: TK04 [s]

Length of the evaluation interval the best solution calculated from (TK04 User's Manual; TeKa, Berlin, Germany). second

thermal conductivity iteration; section::time end: TK04 [s]

End time of the evaluation interval the best solution calculated from (TK04 User's Manual; TeKa, Berlin, Germany). second

thermal conductivity iteration; section::contact value: TK04

The contact value of the heating curve (TK04 User's Manual; TeKa, Berlin, Germany). dimensionless quantity

thermal conductivity iteration; section::comment on measurement

Comment on the measurement, the object (i.e. samples, for which the measurement is conducted) and/or errors that cannot be corrected.

See also