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Thermal maturation of the Lower Palaeozoic strata of northern Greenland from conodont colour alteration index (CAI) data: implications for burial history and hydrocarbon exploration

Published online by Cambridge University Press:  01 May 2009

H. A. Armstrong
Affiliation:
Department of Geological Sciences, University of Durham, South Road, Durham, DH1 3LE, UK
M. P. Smith
Affiliation:
School of Earth Sciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
R. J. Aldridge
Affiliation:
Department of Geology, University of Leicester, LE1 7RH, UK
S. J. Tull
Affiliation:
Cambridge Arctic Shelf Programme, Department of Earth Sciences, University of Cambridge, Downing Street, Cambridge, CB2 3EQ, UK

Abstract

Conodont colour alteration data for the Lower Palaeozoic strata of the North Greenland carbonate platform indicate a pattern of increased thermal maturity northwards within the Franklinian Basin. There is little variation in values through the Canadian–Llandovery (Lower Ordovician–Lower Silurian) interval at any given locality. A simplified thermal model for the platform suggests that the predominant control of conodont colour alteration and thermal maturation was maximum depth of burial, which occurred during the mid- to late Silurian. A preliminary integrated scheme for conodont and organic thermal maturity indicators can be compiled from the data now available from North Greenland.

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Articles
Copyright
Copyright © Cambridge University Press 1994

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