Alkenon concentrations of Creatcesous sediments of DSDP Hole 76-534A (Table 1) ...

We here report the discovery of unusual distributions of long-chain alkenones (C37-C42) in two Cretaceous black shales from the Blake-Bahama Basin, western North Atlantic. These sediments are Cenomanian (c. 95 Ma) and mid-Albian (c. 105 Ma) in age, thus significantly extending the geological range o...

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Bibliographic Details
Main Authors: Farrimond, Paul, Brassell, Simon C
Format: Dataset
Language:English
Published: PANGAEA 1985
Subjects:
Sample code/label
Lithology/composition/facies
DEPTH, sediment/rock
Stage
Carbon, organic, total
Extract
Alkenone, C372
Alkenone, C382
Alkenone, C392
Alkenone, C402
Alkenone, C412
Alkenone, C422
Alkenone per unit sediment mass
Alkenones
Average chain length
-
Drilling/drill rig
DSDP/ODP/IODP sample designation
Leg76
Glomar Challenger
Deep Sea Drilling Project DSDP
North Atlantic
Online Access:https://dx.doi.org/10.1594/pangaea.757315
https://doi.pangaea.de/10.1594/PANGAEA.757315
Description
Summary:We here report the discovery of unusual distributions of long-chain alkenones (C37-C42) in two Cretaceous black shales from the Blake-Bahama Basin, western North Atlantic. These sediments are Cenomanian (c. 95 Ma) and mid-Albian (c. 105 Ma) in age, thus significantly extending the geological range of these compounds. The precise source of these lipids is, as yet, unknown, although they may derive from an ancient ancestor of Emiliania huxleyi. ... : # = concentration estimated by mas fragmentography due to co-evolution. <1 = trace amount detected. ...

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