SOURCE ROCK POTENTIAL AND ORGANIC GEOCHEMISTRY OF CENOMANIAN-TURONIAN BLACK SHALES, WESTERN TAURUS, SW TURKEY


Kara-Gulbay R. , Yurtsever T. S. , KORKMAZ S. , DEMİREL İ. H.

JOURNAL OF PETROLEUM GEOLOGY, vol.34, no.4, pp.355-369, 2010 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 34 Issue: 4
  • Publication Date: 2010
  • Doi Number: 10.1111/j.1747-5457.2010.00484.x
  • Title of Journal : JOURNAL OF PETROLEUM GEOLOGY
  • Page Numbers: pp.355-369

Abstract

Based on maximum pyrolysis degradation temperatures of not more than 420 degrees C, all the shale samples are classified as immature, corresponding to a vitrinite reflectance of less than 0.45% R(r) and a lignite to sub-bituminous coal stage. This is confirmed by relatively high isoprenoid to n-alkane ratios as well as by high biomarker contents. According to this maturity stage, and both total organic carbon contents of 6-41% and hydrogen indices of 255-708 mg HC/g TOC, the Cenomanian-Turonian black shales exhibit fair to excellent source rock potential with mixed Type II and Type I kerogen.