Illuminating Australia's conductivity structure at 0.5x0.5° resolution: AusLAMP progress

Abstract:

The Australian Lithospheric Architecture Magnetotelluric Project (AusLAMP) collaborative project is a program designed to deploy long period magnetotelluric (MT) stations across the Australian continent at a nominal resolution of 0.5x0.5° (approximately 50 by 50 km). The program brings together Federal and State government geological surveys with universities to acquire these MT data sites. The aim is to use these data to produce a 3D model of the conductivity of Australia to lithospheric depths. To date, the entire state of Victoria has been imaged, along with a large portion of South Australia, and smaller regions in Queensland and New South Wales. A pool of instruments are used for these data collection tranches, with standards for acquisition parameters, processing and modelling developed to ensure consistent data acquisition. We will provide an update on the program, including current deployments, plus an overview of data collected so far. Finally, we will discuss the future acquisition plans of the AusLAMP project.