Structural and Tectonic Evolution of the Tasman Orogenic Zone in Northern Tasmania

东澳大利亚塔斯曼造山带包括西拉克兰褶皱带和东新英格兰褶皱带。这些地区有多种造山模式，包括基底岩的厚皮构造模式和逆冲带伸展的薄皮构造模式。塔斯马尼亚北部海岸暴露了塔斯马尼亚造山带的横截面，包括基底暴露，因此提供了一个理想的地点来测试各种假设。该项目将与澳大利亚维多利亚州莫纳什大学的研究人员合作，研究塔斯马尼亚北部海岸110公里地质导线沿线的结构几何和岩石结构。结果将有助于限制塔斯马尼亚州和维多利亚州地表增生过程的力学建模。这些结果对于将塔斯马尼亚置于澳大利亚-南极大陆分裂的板块构造重建中也很重要。

The Tasman orogenic belt of eastern Australia includes the Lachlan fold belt on the west and the New England fold belt on the east. There are a number of orogenic models for these areas including thick-skinned tectonics involving basement rocks and thin-skinned tectonics involving thrust belt telescoping. The north coast of Tasmania exposes a cross-section of the Tasman orogenic belt, including basement exposures and thus provides an ideal location to test the various hypotheses. This project will study the structural geometry and rock fabrics along a 110 km geotraverse on the north coast of Tasmania in conjunction with investigators at Monash University, Victoria, Australia. Results will help constrain mechanical modelling of terrane accretion processes for Tasmania and Victoria. Results are also important in placing Tasmania in plate tectonic reconstructions of the Australia-Antarctic continental breakup.