کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4689226 | 1636038 | 2015 | 15 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Heavy carbon travertine related to methane generation: A case study of the Big Tarkhan cold spring, Kerch Peninsula, Crimea
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
فرآیندهای سطح زمین
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Heavy carbon travertine related to methane generation: A case study of the Big Tarkhan cold spring, Kerch Peninsula, Crimea Heavy carbon travertine related to methane generation: A case study of the Big Tarkhan cold spring, Kerch Peninsula, Crimea](/preview/png/4689226.png)
چکیده انگلیسی
The Big Tarkhan cold spring is located within the Bulganak zone of mud volcanism in the northern Kerch Peninsula (Crimea). The spring waters mainly have Cl-HCO3-Na-Ca chemistry and temperatures from 18 to 23 °C. Active travertine deposition at the site produces abundant calcite and minor amounts of siderite, halite, tincalconite, trona, gaylussite, northupite and amorphous iron hydroxides. Calcite contains the impurities of 0.26-2.16 wt.% MgO, up to 0.87 wt.% FeO, 0.15-0.73 wt.% SrO, 0.28-0.98 BaO, up to 0.43 wt.% MnO, and 0.09-0.60 Na2O. Active travertines are depleted in REE (ΣREE = 2.6-4.8 ppm) compared to the inactive ones. The Kerch travertine calcite shows unusual carbon and oxygen isotope compositions (+ 8.1 ÷ + 12.5ⰠVPDB δ13C and + 10.1 ÷ + 12.9ⰠVPDB δ18O). Their isotopic and trace element signatures (including REE patterns) suggest their relation to basinal waters and origin from the organic-rich clayey Maikop Fm., which is the principal source rock of the area. The Big Tarkhan travertine deposits are associated with thermogenic methane production.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sedimentary Geology - Volume 325, 15 July 2015, Pages 26-40
Journal: Sedimentary Geology - Volume 325, 15 July 2015, Pages 26-40
نویسندگان
Svetlana N. Kokh, Yevgeny F. Shnyukov, Ella V. Sokol, Sofya A. Novikova, Olga A. Kozmenko, Dina V. Semenova, Elena N. Rybak,