Resistivity model of the southeast Australian mainland from AusLAMP magnetotelluric data

The Australian Lithospheric Architecture Magnetotelluric Project (AusLAMP) aims to collect long period magnetotelluric data on a half degree (~55 km) grid across the Australian continent. New data have recently been collected in New South Wales under a National Collaborative Framework agreement between Geoscience Australia and the Geological Survey of New South Wales.

This data release contains a preferred resistivity model and associated inversion files for southeast Australia using data from AusLAMP Victoria (Duan & Kyi, 2018), far west NSW (Robertson et al. 2016) and from the rest of New South Wales up to August 2019. Detailed discussion on model parameters is provided in the readme file, and interpretation in terms of the geodynamic significance of this model is provided in a submitted manuscript “Lithospheric architecture of a Phanerozoic orogen from magnetotellurics: AusLAMP in the Tasmanides, southeast Australia”.

澳大利亚岩石圈构造大地电磁计划（Australian Lithospheric Architecture Magnetotelluric Project, AusLAMP）旨在以半度（约55千米）的网格在澳大利亚大陆范围内采集长周期大地电磁数据。近期，依托澳大利亚地质调查局（Geoscience Australia）与新南威尔士州地质调查局达成的国家合作框架协议，科研团队在新南威尔士州完成了新一批数据采集工作。

本次发布的数据包含澳大利亚东南部的优选电阻率模型及配套反演文件，所用数据源自维多利亚州AusLAMP项目（Duan与Kyi，2018）、新南威尔士州远西部地区（Robertson等，2016），以及截至2019年8月采集的新南威尔士州其余区域数据。模型参数的详细说明见自述文件；针对该模型的地球动力学意义所开展的解释，已收录于已投稿论文"Lithospheric architecture of a Phanerozoic orogen from magnetotellurics: AusLAMP in the Tasmanides, southeast Australia"。