地质学报2012，Vol.86Issue(8)：1175-1187,13.
渤海湾西北岸的几道牡蛎礁
Several Oyster Barrier Reefs in the Northwest Coast of Bohai Sea
摘要
Abstract
The northwest coast of Bohai Sea can be horizontally classified into six oyster barrier reefs. Based on the description of geometrical morphology characteristics and dissected profiles for oyster barrier reefs' bodies, the study carried out comparative analysis for mineral crystal forms of oyster barrier reefs bodies using X-ray diffraction and Laser Raman. The internal structure and mineral components of individual oyster shell from the BKP20-2 profile in Biaokou county was investigated under binocular microscope. Through mechanical excavation and drilling, the author obtained the thickness of spatial accumulation and occurrence elevation of oyster barrier reef bodies, and "C age data for each profile in the vertical direction, the internal structure of the oyster reef accumulation, and horizontal intercalation and content change of CaCO3. But the content of CaCO3is often higher, and preliminary analysis show it may e related to cold weather. Grain sizes were analyzed based on the fillings inside oyster shell and sediments on shell. Grain size components and probability cumulative curve provide evidence for the ecological environment of the oyster barrier reefs. The living environment of oyster barrier reefs is mainly in the subtidal zone. The BKP20 profile at Biaokou county was employed to investigate the biological assemblages characteristics of oyster reef at depth from -2. 14 to -6. 90 m. The results above provide the basis for obtaining the evolution model of growth, development and extinction of the oyster barrier reefs' bodies.关键词
渤海湾西北岸/牡蛎礁的分布/牡蛎礁的生态与演化Key words
west coast of Bohai Sea/ distribution of the Oyster barrier reefs/ ecology and evolution of oyster barrier reef引用本文复制引用
岳军,DONG Yue,张宝华,韩芳,赵希涛,刘冬雁,段焕春,张百鸣,赵长荣..渤海湾西北岸的几道牡蛎礁[J].地质学报,2012,86(8):1175-1187,13.基金项目
本文为国家自然基金项目(编号40940025)、天津市自然基金项目(编号07ZCGYSF02400、09JCYBJC07400)、国家973项目(编号2007CB411807)、国家海洋局海洋大气-化学与全球变化重点实验室开放基金项目(编号GCMAC0806)、国家自然科学基金项目(编号41006002)资助的成果. （编号40940025）
