Môi trường trầm tích Holocen tại lỗ khoan HP1 Dương Kinh, Hải Phòng

Bài viết bước đầu khôi phục sự thay đổi môi trường thành tạo trầm tích Holocen vùng ven biển Hải Phòng dựa trên kết quả phân tích tảo Diatomeae và độ hạt tại lỗ khoan HP1-Quận Dương Kinh, thành phố Hải Phòng. | Môi trường trầm tích Holocen tại lỗ khoan HP1 Dương Kinh Hải Phòng VNU Journal of Science Earth and Environmental Sciences Vol. 36 No. 2 2020 1-16 Original Article Holocene Sedimentary Environment in HP1 Core at Duong Kinh Haiphong Nguyen Thi Thu Cuc1 Nguyen Thuy Duong1 Nguyen Thi Minh Phuong2 Doan Dinh Lam3 Vu Van Loi4 An Thi Thuy5 Nguyen Thi Xuan6 1 VNU University of Science Vietnam National University Hanoi 334 Nguyen Trai Hanoi Vietnam 2 Duy Tan University 254 Nguyen Van Linh Da Nang Vietnam 3 Institute of Geological Sciences Vietnam Academy of Science and Technology 84 Chua Lang Hanoi Vietnam 4 Hai Phong Construction Design and Consultant Joint stock company 36 Ly Tu Trong Hong Bang Hai Phong Vietnam 5 Vietnam National Museum of Nature 18 Hoang Quoc Viet Ha Noi Vietnam 6 Vietnam Association for Paleontology and Stratigraphy 334 Nguyen Trai Hanoi Vietnam Received 26 November 2018 Revised 31 December 2019 Accepted 15 January 2020 Abstract Holocene environment change in Haiphong coastal area was reconstructed based on diatom and grain-size analysis in the HP1 core at Duong Kinh Haiphong. 52 diatom species were identified and divided in five diatom ecozones by changing of four diatom groups including marine planktonic brackish planktonic brackish benthic and freshwater one. The sedimentary environment at the Haiphong coastal area was estuary- bay condition in the Flandrian trangression Z1 Z2 and Z3 Unit . Deltaic environment changed from prodelta Z4 delta front Z5 to delta plain Z6 and Z7 corresponding to the Flandrian regression. Keywords Haiphong coastal area diatom grain-size Flandrian trangression Holocene. Corresponding author. E-mail address https 2588-1094 1 2 . Cuc et al. VNU Journal of Science Earth and Environmental Sciences Vol. 36 No. 2 2020 1-16 Môi trường trầm tích Holocen tại lỗ khoan HP1 Dương Kinh Hải Phòng Nguyễn Thị Thu Cúc1 Nguyễn Thùy Dương1 Nguyễn Thị Minh Phương2 Doãn Đình .