Heterogeneity of organic matter distribution in relation to a transgressive systems tract: Kimmeridge Clay (Jurassic), England

Conference · Fri Mar 01 00:00:00 EST 1991 · AAPG Bulletin (American Association of Petroleum Geologists); (United States)

OSTI ID:5617591

Herbin, J P; Muller, C ^[1]; Geyssant, J; Melieres, F; Penn, I

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1. Inst. Francais du Petrole, Rueil-Malmaison (France)

The Kimmeridge clay has been drilled in four continuously cored boreholes put down to sample the organic carbon content of the formation. Three of them sited in the Cleveland basin (Yorkshire) prove over 200 m of strata ranging from Mutabilis to Pectinatus zones; the fourth, completing a 35 km transect, proves the lower part of the Kimmeridge clay of the thinner Eastern England shelf. The results show the total organic carbon content (TOC) increasing by 50% when traced from shelf into the basin where deeper bathymetry and more rapid sedimentation have favored preservation of organic matter. The study of stratigraphical variation of % TOC enables evaluation of fundamental problems of these cycles in which organic matter is one of the major constituents. Such cycles exist throughout the Jurassic and Lower-Middle Cretaceous sequences but a transgressive systems tract such as that of the Kimmeridgian Stage enables the phenomenon to be studied in detail.

• OSTI ID: 5617591
• Report Number(s): CONF-910403-; CODEN: AABUD
• Journal Information: AAPG Bulletin (American Association of Petroleum Geologists); (United States), Vol. 75:3; Conference: Annual meeting of the American Association of Petroleum Geologists (AAPG), Dallas, TX (United States), 7-10 Apr 1991; ISSN 0149-1423
• Country of Publication: United States
• Language: English

Related Subjects

58 GEOSCIENCES
CLAYS
GEOCHEMISTRY
SEDIMENTARY BASINS
STRATIGRAPHY
UNITED KINGDOM
BOREHOLES
CARBON
DRILL CORES
GEOLOGIC FORMATIONS
JURASSIC PERIOD
ORGANIC COMPOUNDS
CAVITIES
CHEMISTRY
DEVELOPED COUNTRIES
ELEMENTS
EUROPE
GEOLOGIC AGES
GEOLOGIC STRUCTURES
GEOLOGY
MESOZOIC ERA
NONMETALS
580000* - Geosciences