COLLABORATIVE RESEARCH: Integrated Paleoceanographic Analysis of the Late Paleozoic Midcontinent Sea

合作研究：晚古生代中大陆海的综合古海洋学分析

• 批准号: 1052988
• 负责人: Achim Herrmann
• 金额: $ 23.6万
• 依托单位: Arizona State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-06-01 至 2013-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1052988&HistoricalAwards=false
• 关键词: COLLABORATIVE; RESEARCH; Integrated; Paleoceanographic; Analysis

COLLABORATIVE RESEARCH: Integrated Paleoceanographic Analysis of the Late Paleozoic Midcontinent SeaAchim Herrmann, Arizona State University. EAR-1052988Thomas Algeo, Univ. Cincinnatti, EAR-1053449James Barrick, Texas Tech University, EAR-1053042Bernd Haupt, Penn State University, EAR-1052998ABSTRACTDue to different environmental conditions and paleogeographic settings of ancient times, some past sedimentary environments have no good modern analogues. For instance, previous interpretations of environmental conditions of black shale deposition centered on applying modern analogs of coastal upwelling or ?Black-Sea type? silled basin topographies. However, a superestuarine circulation model has been proposed recently to explain the abundant and widespread Paleozoic black shale deposits of Midcontinent North America. It is the purpose of this research project to use an interdisciplinary approach to investigate paleoceanographic conditions during the deposition of Pennsylvanian cyclothems of Midcontinent North America and to test the ?superestuarine circulation hypothesis?. This work is a comprehensive data-model synthesis study and geochemical proxies (strontium and oxygen isotopes of biogenic apatite; bulk major- and trace-element abundance data, TOC-TIC-S concentrations, and petrographic data) will be compared to biofacies distribution patterns and to results of numerical ocean circulation models. Funding provides research opportunities for undergraduates at several universities and will support one PhD thesis.

合作研究：晚古生代中大陆 SeaAchim Herrmann 的综合古海洋学分析，亚利桑那州立大学。 EAR-1052988托马斯·阿尔吉奥大学辛辛那提，EAR-1053449James Barrick，德克萨斯理工大学，EAR-1053042Bernd Haupt，宾夕法尼亚州立大学，EAR-1052998摘要由于古代环境条件和古地理环境的不同，一些过去的沉积环境没有良好的现代类似物。例如，以前对黑色页岩沉积环境条件的解释集中于应用沿海上升流或“黑海类型”的现代类比。洼地盆地地形。 然而，最近提出了河口外环流模型来解释北美中部大陆丰富而广泛的古生代黑色页岩沉积物。该研究项目的目的是采用跨学科方法来研究北美中部大陆宾夕法尼亚环流沉积期间的古海洋条件，并检验“河口上环流假说”。这项工作是一项全面的数据模型综合研究，地球化学代理（生物磷灰石的锶和氧同位素；大量主量和微量元素丰度数据、TOC-TIC-S 浓度和岩相数据）将与生物相分布模式进行比较以及海洋环流数值模型的结果。资金为多所大学的本科生提供研究机会，并将支持一篇博士论文。