Report
GPCR2019_01
Date
28/04/2021
Author(s)
Ostersen, T
Title
Geoelectric Structure of the Tasmanian Lithosphere from Multi-Scale Magnetotelluric Data
Tenement(s)
Physical Description
1 volumes, 1 thesis
Digital Media
Other Ref.
Map (250K)
Map (50/100K)
Geographic
Activities
Geophysics
,
Gnd electromag
Minerals
Deposits
Keywords
AusLAMP
,
MT
,
magnetotelluric
Annotation
Natural magnetic and electric field variations measured at dozens of locations spaced throughout Tasmania have been processed to determine subsurface electrical conductivity structure on depth scales ranging from hundreds of metres to hundreds of kilometres. Raw, processed and inverted (3D conductivity) data are available. The 3D electrical conductivity model extends from surface to a nominal depth of 900 km. Acquired as part of the national Australian Lithospheric Architecture Magnetotelluric Project (AusLAMP), a decade-long national MT survey led by Geoscience Australia with the collaboration of state and territory geoscience agencies, universities and other research organisations. Here, the AusLAMP data are augmented by data from two transects of western and northern Tasmania, and integrated with previous commercial exploration data from eastern Tasmania. Data consists of original time-series magnetic and electric measurements, processed data and inversion results (voxets and derived 2D rasters).
Related MRT Plan(s):