Dolomites in SE Asia.
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This paper was originally published at the IPA Annual Convention, Jakarta 2003
This manuscript summarises published data on the distribution, habit, and current inferred models for dolomite occurrence in carbonates from southeast Asia. The presence of dolomite has significant implications for hydrocarbon exploration and production, as it may affect reservoir porosity, permeability, and connectivity to petroleum source areas. It may also be a factor in generation of undesirable non-hydrocarbon gases.This work is by no means exhaustive, given the paucity of published data on dolomites in the region, and there is considerable scope for further study. The extended abstract presented herein is modified from a review on SE Asian dolomites (Carnell and Wilson, submitted) submitted to a Geological Society of London Special Publication on ‘The Geometry & Petrogenesis of Dolomite Hydrocarbon Reservoirs’. The reader is referred to this Geological Society volume for the full manuscript, which contains descriptions of known SE Asian dolomites, discussions on their origins, together with maps, diagrams and tables showing the occurrence and characteristics of dolomites in Pre-Tertiary, Paleogene and Neogene carbonates.
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