(Table 1) Organic petrography and Rock-Eval pyrolysis at DSDP Hole 79-547B

A lenticle of organic matter in a piece of dolomite rock embedded in Triassic sandy mudstone of Core 547B-35 (DSDP Leg 79) was identified as inertinite-rich coal by organic petrography and analytical pyrolysis. About 95% of the organic matter recognized under the microscope consists of pyrofusinite,...

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Bibliographic Details
Main Authors: Mukhopadhyay, Prasanta K, Spiro, Baruch, Rullkötter, Jürgen
Format: Dataset
Language:English
Published: PANGAEA 1984
Subjects:
79-547B
Carbon
organic
total
Deep Sea Drilling Project
Degradofusinite
DEPTH
sediment/rock
DRILL
Drilling/drill rig
DSDP
DSDP/ODP/IODP sample designation
Glomar Challenger
Humic compounds
Hydrogen index
mass HC
per unit mass total organic carbon
Inertodetrinite
Leg79
Liptinite
Lithology/composition/facies
Microscopy
North Atlantic/PLATEAU
Oxygen index
mass CO2
Pyrofusinite
Rock eval pyrolysis (Espitalié et al. 1977)
Sample code/label
Vitrinite reflection
North Atlantic
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.808517
https://doi.org/10.1594/PANGAEA.808517
Description
Summary:A lenticle of organic matter in a piece of dolomite rock embedded in Triassic sandy mudstone of Core 547B-35 (DSDP Leg 79) was identified as inertinite-rich coal by organic petrography and analytical pyrolysis. About 95% of the organic matter recognized under the microscope consists of pyrofusinite, degradofusinite, and inertodetrinite. Gaseous hydrocarbons evolved during pyrolysis are rich in methane and are characteristic of inertinitic material. The organic matter is suggested to be a piece of redeposited Permian Gondwana coal.

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