(Table 1) Geochemical analysis on sediment core CRP-3

Sediments and rocks recovered in CRP-3 coring operations contain minute amounts of organic matter (average 0.3% TOC). TOC contents and C:N ratios are zoned systematically: those rocks encountered at depths greater than 330 meters below sea floor (mbsf) contain less organic matter and have higher TOC...

Full description

Bibliographic Details
Main Author: Kettler, Richard M
Format: Dataset
Language:English
Published: PANGAEA 2001
Subjects:
Cape Roberts Project
Carbon
organic
total
standard deviation
Core wireline system
CRP
CRP-3
CWS
Depth
bottom/max
sediment/rock
top/min
Element analyser CHNS-O
Carlo Erba EA1108
Nitrogen
Ross Sea
Sampling/drilling from ice
Sulfur
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.62127
https://doi.org/10.1594/PANGAEA.62127
Description
Summary:Sediments and rocks recovered in CRP-3 coring operations contain minute amounts of organic matter (average 0.3% TOC). TOC contents and C:N ratios are zoned systematically: those rocks encountered at depths greater than 330 meters below sea floor (mbsf) contain less organic matter and have higher TOC:N ratios (after correcting for inorganic N) than do shallower rocks. The only two samples that have TOC values greater than 1% also contain abundant granule to silt-sized particles of coal. The total sulphur contents of these rocks is very low and indicates either that only small amounts of deposited organic matter were labile, or that no source of reactive iron was present during diagenesis.

Similar Items