(Table 1) Maceral composition and organic carbon chemistry of ODP Leg 104 samples ...

The Cenozoic sediments sampled in ODP Leg 104 on the Vøring Plateau show a distinct variability of the total organic carbon content (TOC) and the accumulation rates of TOC. Based on the geochemical and organic-petrographic characterization of the sedimentary organic matter (OM), the allochthonous an...

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Bibliographic Details
Main Authors: Hölemann, Jens A, Henrich, Rüdiger
Format: Dataset
Language:English
Published: PANGAEA 1994
Subjects:
Event label
Sample code/label
AGE
Facies name/code
Isotopic event
Carbon, organic, total
Hydrogen index, mass HC, per unit mass total organic carbon
Temperature, in rock/sediment, maximum
Liptodetrinite
Alginite
Detrinite
Vitrinite
Sporinite
Coal clasts or fragments
Drilling/drill rig
DSDP/ODP/IODP sample designation
Element analyser CHN, LECO CS 125
Rock eval pyrolysis Behar et al., 2001
Fluorescent microscope
Leg104
Joides Resolution
Ocean Drilling Program ODP
Norwegian Sea
Online Access:https://dx.doi.org/10.1594/pangaea.758978
https://doi.pangaea.de/10.1594/PANGAEA.758978
Description
Summary:The Cenozoic sediments sampled in ODP Leg 104 on the Vøring Plateau show a distinct variability of the total organic carbon content (TOC) and the accumulation rates of TOC. Based on the geochemical and organic-petrographic characterization of the sedimentary organic matter (OM), the allochthonous and autochthonous proportion of the OM could be quantified.The results clearly demonstrate that high TOC percentages and TOC accumulation rates in Cenozoic sediment sections display a generally high input of allochthonous organic matter. Oxidized and partly well-rounded organic particles built up the main portion of OM within the Miocene, TOC-rich sediments. The most probable source of this oxidized OM are reworked sediments from the Scandinavian shelf. Changes in the input of these organic particles are to some degree correlative with sea-level changes.The Cenozoic accumulation of autochthonous OM is low and does not reveal a clear variation during the Miocene and early Pliocene. In spite of a high accumulation ... : Supplement to: Hölemann, Jens A; Henrich, Rüdiger (1994): Allochthonous versus autochthonous organic matter in Cenozoic sediments of the Norwegian Sea: Evidence for the onset of glaciations in the northern hemisphere. Marine Geology, 121(1-2), 87-103 ...

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