Structural and Stratigraphic Study of the Humber Arm Allochthon of Western Newfoundland: Implications for StableMargin Dev., Obduction, Accretion, and Melange Formation

纽芬兰西部亨伯湾异地的结构和地层研究：对稳定边缘发育、仰冲、增生和混杂岩形成的影响

• 批准号: 8804756
• 负责人: John Casey
• 金额: $ 4.91万
• 依托单位: University of Houston
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-08-01 至 1991-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8804756&HistoricalAwards=false
• 关键词: Structural; Stratigraphic; Study; Humber; Arm

The principal investigator will conduct detailed mapping and structural analysis in the Humber Arm Allochthon of western Newfoundland, Canada. The field work will extend previous detailed mapping in the highest structural slices of the allochthon to the lower sedimentary structural slices. This mapping will allow further studies to stratigraphically subdivide the allochthon on the basis of well-constrained paleontological age fixes, provenance studies of sandstones, mudstones and cherts, in addition to standard lithologic correlation. In this way we hope to gain a clearer insight into the stratigraphic development of the former Atlantic type margin, the assembly, transport and structural development of the allochthon, the formation of melange zones within the allochthon, and the mechanism of ophiolite obduction.

主要研究者将进行详细的绘图， 西秦岭亨伯臂外来体的构造分析 加拿大纽芬兰。 现场工作将延续以往 在最高的结构切片的详细映射 外来体向下部沉积构造岩片迁移。 这 绘图将使进一步的研究，以地层细分 在严格的古生物学基础上的外来体 年代测定，砂岩、泥岩和燧石的物源研究， 除了标准的岩性对比之外。 这样我们 我希望能更清楚地了解地层的发展 前大西洋型边缘，组装，运输和 外来体的构造发育，混杂岩的形成 外来岩中的分带和蛇绿岩形成机制 仰冲