Contents of organic compounds in sediments from DSDP Legs 1 and 4

Fifteen sediment samples were studied from five drill sites recovered by the Glomar Challenger on Legs I and IV in the Gulf of Mexico and western Atlantic. This study concentrated on compounds derived from biogenic precursors, namely: (1) hydrocarbons, (2) fatty acids, (3) pigments and (4) amino aci...

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Bibliographic Details
Main Authors: Aizenshtat, Z, Baedecker, M J, Kaplan, I R
Format: Dataset
Language:English
Published: PANGAEA 1973
Subjects:
1-2
1-3
1-6
1-6A
4-26
4-27
Deep Sea Drilling Project
DRILL
Drilling/drill rig
DSDP
Glomar Challenger
Gulf of Mexico/KNOLL
Gulf of Mexico/PLAIN
Leg1
Leg4
North Atlantic/CONT RISE
North Atlantic/RIDGE
North Atlantic/TROUGH
North Atlantic
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.706744
https://doi.org/10.1594/PANGAEA.706744
Description
Summary:Fifteen sediment samples were studied from five drill sites recovered by the Glomar Challenger on Legs I and IV in the Gulf of Mexico and western Atlantic. This study concentrated on compounds derived from biogenic precursors, namely: (1) hydrocarbons, (2) fatty acids, (3) pigments and (4) amino acids. Carbon isotope (dC13) data [values <(-26)‰, relative to PDB], long-chain n-alkyl hydrocarbons (>>C27) with odd carbon numbered molecules dominating even carbon numbered species, and presence of perylene proved useful as possible indicators for terrigenous contributions to the organic matter in some samples. Apparently land-derived organic matter can be transported for distances over 1000 km into the ocean and their source still recognized. The study was primarily designed to investigate: (i) the sources of the organic matter present in the sediment, (ii) their stability with time of accumulation and (iii) the conditions necessary for in situ formation of new compounds.

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