/* DATA DESCRIPTION:
Citation:	Tazaki, Kazue; Fyfe, William S (1992): (Table 1) Chemical composition of green clays in sandstone from different depths at ODP Site 126-793B [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.704814, 
	Supplement to: Tazaki, K; Fyfe, WS (1992): Microbial green marine clay from Izu-Bonin (west Pacific) deep-sea sediments. Chemical Geology, 102(1-4), 105-118, https://doi.org/10.1016/0009-2541(92)90149-Y
Abstract:	Microbial green marine clays in deep-sea sediments were recovered from the Izu-Bonin fore-arc basin at Leg 126 of the Ocean Drilling Program (ODP) along the Bonin-Mariana trench. Green spherical materials and remnants of dead microbial cells of filamentous bacteria are abundant in the green marine clays. Organic carbon and graphite were found in the volcanic sandstone. Transmission electron microscope observations clearly show processes of graphite mineralization from low-crystallinity to well-crystallized graphite. However, X-ray photoelectron spectrochemical analyses (micro-ESCA) indicate that the green marine clays contain high C (1s) of microbial origin carbon, and COO, C---O, C---C and graphite structures. Fourier transform infrared spectra (FT-IR spectra) of the green spherules show peaks between glauconite and celadonite. X-ray powder diffraction data show the presence of smectite and 1.03-1.22-nm mica-clay minerals with abundant zeolites, which are hydrothermal alteration products. The results suggest that fossil remnants of graphite mineralized organisms, in particular filamentous bacteria, might play an important role in the formation of green marine clays.
Project(s):	Ocean Drilling Program (ODP) (URI: https://www-odp.tamu.edu:443/)
Coverage:	LATITUDE: 31.105910 * LONGITUDE: 140.888100
	DATE/TIME START: 1989-05-27T18:10:00 * DATE/TIME END: 1989-06-17T18:55:00
	MINIMUM DEPTH, sediment/rock: 1079 m * MAXIMUM DEPTH, sediment/rock: 1227 m
Event(s):	126-793B * LATITUDE: 31.105910 * LONGITUDE: 140.888100 * DATE/TIME START: 1989-05-27T18:10:00 * DATE/TIME END: 1989-06-17T18:55:00 * ELEVATION: -2975.0 m * PENETRATION: 1682 m * RECOVERY: 697.94 m * LOCATION: North Pacific Ocean * CAMPAIGN: Leg126 * BASIS: Joides Resolution (URI: https://www-odp.tamu.edu:443/resolutn.html) * METHOD/DEVICE: Drilling/drill rig (DRILL) * COMMENT: 114 cores; 1095.5 m cored; 0 m drilled; 63.7 % recovery
Parameter(s):	DEPTH, sediment/rock [m] (Depth sed) * GEOCODE
	Sample code/label (Sample label) * PI: Tazaki, Kazue * METHOD/DEVICE: DSDP/ODP/IODP sample designation (URI: hdl:10013/epic.27914.d001)
	Iron [%] (Fe) * PI: Tazaki, Kazue * METHOD/DEVICE: X-ray photoelectron spectrochemical analysis
	Oxygen, gas [%] (O2) * PI: Tazaki, Kazue * METHOD/DEVICE: X-ray photoelectron spectrochemical analysis
	Calcium [%] (Ca) * PI: Tazaki, Kazue * METHOD/DEVICE: X-ray photoelectron spectrochemical analysis
	Potassium [%] (K) * PI: Tazaki, Kazue * METHOD/DEVICE: X-ray photoelectron spectrochemical analysis
	Carbon, total [%] (TC) * PI: Tazaki, Kazue * METHOD/DEVICE: X-ray photoelectron spectrochemical analysis
	Chlorine [%] (Cl) * PI: Tazaki, Kazue * METHOD/DEVICE: X-ray photoelectron spectrochemical analysis
	Silicon [%] (Si) * PI: Tazaki, Kazue * METHOD/DEVICE: X-ray photoelectron spectrochemical analysis
	Aluminium [%] (Al) * PI: Tazaki, Kazue * METHOD/DEVICE: X-ray photoelectron spectrochemical analysis
License:	Creative Commons Attribution 3.0 Unported (CC-BY-3.0) (URI: https://creativecommons.org/licenses/by/3.0/)
Size:	36 data points
*/
Depth sed [m]	Sample label	Fe [%]	O2 [%]	Ca [%]	K [%]	TC [%]	Cl [%]	Si [%]	Al [%]
1079	793B-52R-03, 24-26	2.0	63.500	1.3	0.0	1.3	0.5	21.3	9.9
1127	793B-57R-03, 85-87	2.0	62.000	2.2	0.2	1.3	0.5	22.6	9.1
1135	793B-58R-02, 94-96	2.4	58.700	1.1	3.4	3.4	0.8	23.4	6.8
1227	793B-67R-06, 80-82	2.4	61.200	1.3	1.4	1.4	0.4	23.3	8.7