MỘT SỐ KẾT QUẢ NGHIÊN CỨU PHÂN BỐ SÒ, ĐIỆP KHU VỰC NGHỆ AN
Autor: | Bùi Anh Nam, Nguyễn Bá Duẩn, Đặng Thanh Hải, Cao Đình Triều, Nguyễn Đình Nguyên, Ngô Gia Thắng |
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Rok vydání: | 2011 |
Předmět: | |
Zdroj: | VIETNAM JOURNAL OF EARTH SCIENCES. 33:97-108 |
ISSN: | 0866-7187 4000-4600 |
DOI: | 10.15625/0866-7187/33/2/284 |
Popis: | Some results of placura and granosa shells distribution in Nghe An regionOn the basis of placura placenta-arca granosa shells investigation in Quynh Van, Dien Chau and Nghi Tien, some new results can be made as the following:- Banks of placura placenta-arca granosa shells in Quynh Van and Nghi Tien; deep-seated in Quynh Nghia, DienChau and along Nghi Yen seashore have the time of 4000-4600 yr.- The appearance of the placura placenta-arca granosa shells banks have not either the sources from marinetransgression in Holocene, tectonic movement or artificial.- It is possible that those are the deposits of the natural geological activities courses to the seashore in the time of4000-4600 yr ago. |
Databáze: | OpenAIRE |
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