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The AAPG/Datapages Combined Publications Database

AAPG Bulletin


Volume: 69 (1985)

Issue: 2. (February)

First Page: 281

Last Page: 282

Title: Distribution of Dolomite in Deep Marine Sediments as Function of Time: ABSTRACT

Author(s): David N. Lumsden

Article Type: Meeting abstract


The distribution of dolomite in deep marine sediments as a function of time was determined for the Cretaceous and Cenozoic, 150 Ma to present, using data from 1,142 DSDP samples. The general distribution patterns for the Atlantic and Indo-Pacific are similar. Their curves show a maximum in the Miocene, minimum in Paleogene, and 2 maxima in the Cretaceous separated by a Cenomanian low. The less time-extensive data of the Gulf-Caribbean and Mediterranean have a Miocene maximum. Red Sea data peak in late Miocene to early Pliocene. The general similarity

End_Page 281------------------------------

of the patterns from such diverse areas and sediment types suggests that the distribution of dolomite in these sediments is not due to random groupings and may be a consequence of a common global cause.

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Copyright 1997 American Association of Petroleum Geologists