Mechanisms of Lithospheric Extension and Basin Evolution in the Canning Basin (Paleozoic), Northwestern Australia

澳大利亚西北部坎宁盆地（古生代）岩石圈伸展和盆地演化机制

• 批准号: 8917400
• 负责人: Nicholas Christie-Blick
• 金额: $ 12万
• 依托单位: Columbia University
• 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: 1990-02-01 至 1993-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8917400&HistoricalAwards=false
• 关键词: Mechanisms; Lithospheric; Extension; Basin; Evolution

Lithospheric extension is a spatially inhomogeneous process, in many cases associated with detachment faults of regional dimensions and accompanied by development and filling of intra- cratonic basins. This project is designed to test predictions of a general model for lithospheric extension using an integrated geological and geophysical study of the Canning Basin, north- western Australia. Utilizing data from an active Australian BMR project, this study will construct cross sections of the basin from seismic data, undertake subsidence analysis to estimate tectonic and sediment loading subsidence during both the syn-rift and post-rift phases of basin development and will use gravity data to constrain the applicability of the general model. Results are expected to provide a quantitative test of some currently qualitative ideas about the role detachments within extending lithosphere and the subsidence mechanisms in intra- cratnonic basins.

岩石圈伸展是一个空间不均匀的过程， 在许多情况下，与区域性滑脱断层有关， 并伴随着内部的发展和填充， 大西洋盆地。 该项目旨在测试预测 一个综合的岩石圈伸展模型 地质和地球物理研究的坎宁盆地，北- 澳大利亚西部。 利用澳大利亚BMR的数据 项目，这项研究将构建流域的横截面 从地震资料，进行沉降分析估算 构造沉降和沉积物沉降 和裂谷后盆地发展阶段，并将利用重力 数据来约束一般模型的适用性。 预计结果将提供一些定量测试， 目前定性的想法的作用determinant内 伸展岩石圈和内部沉降机制， 无菌盆地。