کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4533534 1626186 2008 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Sedimentary changes during the Holocene in the Bohai Sea and its paleoenvironmental implication
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات زمین شناسی
پیش نمایش صفحه اول مقاله
Sedimentary changes during the Holocene in the Bohai Sea and its paleoenvironmental implication
چکیده انگلیسی

Samples of two cores, Cores M5-5 and M7-4 in the Bohai Sea were analyzed in isotopes, grain size, heavy minerals, chemical compositions, and 14C dating to reconstruct the sedimentation during the Holocene. Abrupt change in carbon and oxygen stable isotopes was recognized at Core M5-5 at about 6400 a BP, which was likely due to the intrusion of the Yellow Sea Warm Current (YSWC) extension into the Bohai Sea. At Core M7-4, sediments between 5900 and 6600 a BP (150–260 cm depth) became coarse-grained, containing rich garnet, high manganese content, and nil autogenic pyrite, indicating a very dynamic sedimentary event during which the ambience was transformed from reductive to oxidative, and sedimentation boosted. Meanwhile, the YSWC had invaded into the Bohai Sea indicated by rich planktonic foraminifera in this event.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Continental Shelf Research - Volume 28, Issues 10–11, 30 June 2008, Pages 1333–1339
نویسندگان
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