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The relationship between light hydrocarbons and carbonate petrology—a study from the Mendip Hills

✍ Scribed by S. Goodman

Publisher
John Wiley and Sons
Year
1987
Tongue
English
Weight
636 KB
Volume
22
Category
Article
ISSN
0072-1050

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✦ Synopsis

Anomalously high values o f light hydrocarbons (CI-CJ) have been detected in carbonate rocks hosting base metal mineralization, and have a potential use in mineral exploration. Development of an exploration method bascd on such anomalies requires an understanding of the controls o n the hydrocarbon content o f the rocks, other than by mineralization. i.e.the hydrocarbons present in hackground areas. This study uses gas chromatography to investigate the light hydrocarbons present in rocks from such a background area, the Carboniferous Limestone o f thc Mcndip Hills. in order t o determine the extent to which different carbonate lithologies affect the quantity and nature of hydrocarbons present. It appears that the lithological effects are minimal when compared t o thc anomalous values from mineralized areas. The limited effects are duc to variation\ in the depositional and diagenetic regimes of the original sediments.

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