Open AccessHolocene Sedimentary Environment in HP1 Core at Duong Kinh, Haiphong
Author(s) -
Nguyễn Thị Thu Cúc,
Nguyễn Thùy Dương,
Nguyễn Thị Minh Phương,
Doãn Đình Lâm,
Vu Van Loi,
An Thi Thuy,
Nguyễn Thị Xuân
Publication year - 2020
Publication title -
tạp chí khoa học đại học quốc gia hà nội: nghiên cứu giáo dục (vnu journal of science: education research)/tạp chí khoa học đại học quốc gia hà nội: các khoa học trái đất và môi trường (vnu journal of science: earth and environmental sciences)
Language(s) - English
Resource type - Journals
eISSN - 2615-9279
pISSN - 2588-1094
DOI - 10.25073/2588-1094/vnuees.4326
Subject(s) - diatom , holocene , estuary , geology , bay , oceanography , brackish water , sedimentary rock , river delta , oyster , delta , paleontology , salinity , aerospace engineering , engineering
Holocene environment change in Hai Phong coastal area was reconstructed based on diatom and grain-size analysis in the HP1 core at Duong Kinh, Hai Phong. 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 Hai Phong 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.