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Title: Burial history and thermal evolution of Westphalian coal-bearing strata in the Campine Basin (NE Belgium)
Authors: Van Keer, I ×
Ondrak, R
Muchez, Philippe
Bayer, U
Dusar, M
Viaene, Willy #
Issue Date: 1998
Publisher: Kluwer academic publ
Series Title: Geologie en mijnbouw vol:76 issue:4 pages:301-310
Abstract: A 1D-modelling program has been applied to reconstruct the burial and thermal histories of two exploration boreholes, KB172 and KB174, located in the Campine Basin. The results show differences in geological histories. The coalification of the Westphalian A and B strata in KB174 (0.66-0.98% R-o) was pre-Permian. Calculated maximum temperatures, based on borehole data and vitrinite reflectance, regional thicknesses and a heat flow of 84 mW/m(2) during the Late Westphalian, range from 110 degrees C at the top to 175 degrees C at the bottom of the Westphalian cored in this borehole. The high coalification (0.85-1.30% R-o) of the Westphalian C and D strata in KB172 could be the result of the deposition of similar to 2500 m of Upper Permian to Middle Jurassic sediments in combination with elevated heat flows (71-80 mW/m(2)). Two coalification periods, i.e. Late Westphalian and Middle Jurassic, are suggested for this borehole. The simulated maximum temperatures range from 130 degrees C at the top to 175 degrees C at the bottom of the investigated Westphalian C and D. The differences in the burial and thermal histories of both boreholes can be related to the activity of the transversal Donderslag Fault, a major structural element in the Campine coalfield, and the Roer Valley Graben.
ISSN: 0016-7746
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Division of Geology
× corresponding author
# (joint) last author

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