Aminostratigraphic Offsets in the Marine Quaternary of the Atlantic Coastal Plain: A Search for Possible Causes

大西洋沿岸平原海洋第四纪的氨基地层偏移：寻找可能的原因

• 批准号: 8915747
• 负责人: John Wehmiller
• 金额: $ 9.9万
• 依托单位: University of Delaware
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-02-15 至 1992-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8915747&HistoricalAwards=false
• 关键词: Aminostratigraphic; Offsets; Marine; Quaternary; Atlantic

Aminostratigraphic analysis of Quaternary mollusc samples from subsurface samples of the submerged and emerged portion of the Atlantic Coastal Plain in North and South Carolina will be conducted. These results will aid in the testing of two mutually exclusive aminostratigraphic models for Coastal Plain Quaternary correlation. These models require either that the region between Norfolk, VA and Charleston, SC has preserved an unusual late Quaternary sea-level/tectonic record or that some U-series coral dates for the region are incorrect. Currently available data from the Pleistocene of the Cape Lookout, NC region indicate that this area marks the boundary between two distinctive types of preserved stratigraphic records, with the Quaternary record northeast of Cape Lookout being more complete. The implications of this contrast in preserved records for Coastal Plain aminostratigraphic and U-series data, and for regional thermal, sedimentologic and tectonic histories will be evaluated during the proposed research.

将对北卡罗来纳州和南卡罗来纳州大西洋沿海平原的淹没和出现的部分的地下样品进行第四纪小软体细胞样品的氨基地层分析。 这些结果将有助于测试两个互斥的氨基地层学模型，以实现沿海平原相关性。 这些模型要求诺福克，弗吉尼亚州和查尔斯顿，SC之间的区域保留了不寻常的第四纪海平面/构造记录，或者该地区的某些U系列珊瑚日期不正确。 当前来自Cape Lookout的更新世，NC区域的可用数据表明，该区域标志着两种独特的保留地层记录之间的边界，而Cape Lookout的第四纪记录更完整。 在拟议的研究期间，将评估这种对比度在保存的记录中对沿海平原氨基地层和U系列数据以及区域热，沉积和构造历史的含义。