地质通报2011，Vol.30Issue(9)：1396-1404,9.
渤海湾全新世牡蛎礁:时空分布和海面变化标志点
Holocene oyster reefs: spatial and temporal distribution and sea level in dicators in Bohai Bay
摘要
Abstract
Based on studies of the Holocene buried and living oyster reefi on the Oyster Reef Plain and its adjacent shallow sea area of northwest Bohai Bay, this paper has reexamined the sedimentary significance and chronology of the data related to the oyeter reefi, and further collated the formation period as well as top and bottom altitudes of each reef group. The newly discovered oldest (the late Early Holocene) reef group, I.e., Group Pre- I -1, was added to the originally determined nine reef-groups. Also, newly discovered reefi at the Binhai Lake and the airport area are tentatively assigned to the Reef V as its subgrouop V-1. Leveling for top altitude fluctuations in Dawuzhuang and other two reef sites indicates that the maximum fluctuation of the reef-top is ±0.7m, which is used as the vertical error range. The investigation of the altitude of LISL (the last irregular sandy/silty lamina) above the reef-top in five reef sites, including Beihuaidian reef, reveals that the average thickness between the reef top and the LISL is approximately 1.6m, which is the maximum vertically accreting thickness given by the local accommodation space between the MSL and MHW. It serves as evidence verifying a conclusion that the reef top corresponds to the msl. Thus, the reef top used as the sea level indicator is defined, I.e., the vertical range by adding ±0.7m to the reef top corresponds to the MSL.关键词
牡蛎礁时空分布:礁体顶板/海面变化标志点/渤海湾Key words
spatial and temporal distribution of the oyster reefi/top of oyster reefi/sea level indicator/Bohai Bay分类
天文与地球科学引用本文复制引用
王海峰,裴艳东,刘会敏,范昌福,王宏..渤海湾全新世牡蛎礁:时空分布和海面变化标志点[J].地质通报,2011,30(9):1396-1404,9.基金项目
国家自然科学基金项目《渤海湾西北岸埋藏牡蛎礁记录的中全新世古环境变化》(批准号:40872106)和中国地质调查局项目《泥质海岸带对全球变化的响应与趋势预测》(编号:1212010911069) （批准号:40872106）
