Romankevich, Evgeny A; Nesterova, Maria P; Shadsky, I P; Grinchenko, J I (1980): (Table 1) Carbon and isotopic composition of organic carbon in sediments from DSDP Leg 56 Holes [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.823099, Supplement to: Romankevich, EA et al. (1980): Carbon and Its isotopic composition in Pacific Ocean bottom sediments, Leg 56, Deep Sea Drilling Project. In: Scientific Party, Initial Reports of the Deep Sea Drilling Project, 56/57 (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 56-57, 1313-1317, https://doi.org/10.2973/dsdp.proc.5657.164.1980
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Abstract:
We have analyzed inorganic and organic carbons and determined the isotopic composition of both sedimentary organic carbon and inorganic carbon in carbonates contained in sediments recovered from Holes 434, 434A, 434B, 435, and 435A in the landward slope of Japan and from Hole 436 in the oceanic slope of the Japan Trench.
Both inorganic and organic carbons were assayed at the P. P. Shirshov Institute of Oceanology, in the same sample, using the Knopp technique and measuring evolved CO2 gravimetrically. Each sample was analyzed twice in parallel. Measurements were of a ±0.05 per cent accuracy and a probability level of 0.95.
Carbon isotopic analysis was carried out on a MI-1305 mass spectrometer at the I. M. Gubkin Institute of Petrochemical and Gas Industry and the results presented as dC13 values related to the PDB standard. The procedure for preparing samples for organic carbon isotopic analysis involved (1) drying damp sediments at 60°C; (2) treating samples, while heating, with 10 N HCl to remove carbonate carbon; and (3) evaporating surplus HCl at 60°C. The organic substance was turned to CO2 by oxidizing it in an oxygen atmosphere. To prepare samples for inorganic carbon isotopic analysis we decomposed the carbonates with orthophosphoric acid and refined the gas evolved. The dC13 measurements, including a full cycle of sample preparation, were of a ±0.5 per cent accuracy and a probability level of 0.95.
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Median Latitude: 39.773717 * Median Longitude: 144.241417 * South-bound Latitude: 39.734800 * West-bound Longitude: 143.792200 * North-bound Latitude: 39.932700 * East-bound Longitude: 145.557800
Date/Time Start: 1977-09-12T00:00:00 * Date/Time End: 1977-10-01T00:00:00
Minimum DEPTH, sediment/rock: 1.0 m * Maximum DEPTH, sediment/rock: 517.1 m
Event(s):
56-434 * Latitude: 39.746000 * Longitude: 144.102000 * Date/Time: 1977-09-12T00:00:00 * Elevation: -5986.0 m * Penetration: 301 m * Recovery: 54.2 m * Location: North Pacific/TRENCH * Campaign: Leg56 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 33 cores; 301 m cored; 0 m drilled; 18 % recovery
56-434A * Latitude: 39.746000 * Longitude: 144.102000 * Date/Time: 1977-09-12T00:00:00 * Elevation: -5986.0 m * Penetration: 160.5 m * Recovery: 14.1 m * Location: North Pacific/TRENCH * Campaign: Leg56 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 2 cores; 18 m cored; 0 m drilled; 78.4 % recovery
56-434B * Latitude: 39.747800 * Longitude: 144.101300 * Date/Time: 1977-09-12T00:00:00 * Elevation: -5986.0 m * Penetration: 637.5 m * Recovery: 63.2 m * Location: North Pacific/TRENCH * Campaign: Leg56 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 32 cores; 295.5 m cored; 47.5 m drilled; 21.4 % recovery
Comment:
Sediment depth is given in mbsf. Empty cells = no data.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | ||||
| 2 | Latitude of event | Latitude | ||||
| 3 | Longitude of event | Longitude | ||||
| 4 | Elevation of event | Elevation | m | |||
| 5 | Sample code/label | Sample label | Romankevich, Evgeny A | DSDP/ODP/IODP sample designation | ||
| 6 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
| 7 | Carbon, organic, total | TOC | % | Romankevich, Evgeny A | Gravimetric analysis | |
| 8 | Carbon, inorganic, total | TIC | % | Romankevich, Evgeny A | Gravimetric analysis | |
| 9 | δ13C, organic carbon | δ13C Corg | ‰ PDB | Romankevich, Evgeny A | Mass spectrometry |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
175 data points