کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4696717 1351708 2007 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Upper Cretaceous/lower Tertiary black shales near the North Pole: Organic-carbon origin and source-rock potential
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات زمین شناسی اقتصادی
پیش نمایش صفحه اول مقاله
Upper Cretaceous/lower Tertiary black shales near the North Pole: Organic-carbon origin and source-rock potential
چکیده انگلیسی

During IODP Expedition 302 (Arctic Coring Expedition—ACEX), the first scientific drilling campaign in the permantly ice-covered central Arctic Ocean, a 430 m thick sequence of upper Cretaceaous to Quaternary sediments has been drilled. The lower half of this sequence is composed of organic-carbon-rich (black shale-type) sediments with total organic carbon contents of about 1–14%. Significant amounts of the organic matter preserved in these sediments is of algae-type origin and accumulated under anoxic/euxinic conditions. Here, for the first time detailed data on the source-rock potential of these black shales are presented, indicating that most of the Eocene sediments have a (fair to) good source-rock potential, prone to generate a gas/oil mixture. The source-rock potential of the Campanian and upper Paleocene sediments, on the other hand, is rather low. The presence of oil or gas already generated in situ, however, can be ruled out due to the immaturity of the ACEX sediments.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Marine and Petroleum Geology - Volume 24, Issue 2, February 2007, Pages 67–73
نویسندگان
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