scholarly journals Defining the Eyre Conductivity Anomaly with the Tumby Bay MT transect

2019 ◽  
Vol 2019 (1) ◽  
pp. 1-3
Author(s):  
Kate Robertson ◽  
Ben Kay ◽  
Lachlan Loader ◽  
Graham Heinson ◽  
Stephan Thiel
Keyword(s):  
Conductivity Anomaly

Electromagnetic images of the Trans-Hudson orogen: the North American Central Plains anomaly revealed

2005 ◽  
Vol 42 (4) ◽  
pp. 457-478 ◽  
Author(s):  
Alan G Jones ◽  
Juanjo Ledo ◽  
Ian J Ferguson
Keyword(s):  
Electrical Properties ◽  
North American ◽  
Upper Mantle ◽  
Lithospheric Mantle ◽  
Three Dimensional ◽  
Conductivity Anomaly ◽  
Central Plains ◽  
Slave Craton ◽  
The North ◽  
Kimberlite Field

Magnetotelluric studies of the Trans-Hudson orogen over the last two decades, prompted by the discovery of a significant conductivity anomaly beneath the North American Central Plains (NACP), from over 300 sites yield an extensive database for interrogation and enable three-dimensional information to be obtained about the geometry of the orogen from southern North Dakota to northern Saskatchewan. The NACP anomaly is remarkable in its continuity along strike, testimony to along-strike similarity of orogenic processes. Where bedrock is exposed, the anomaly can be associated with sulphides that were metamorphosed during subduction and compression and penetratively emplaced deep within the crust of the internides of the orogen to the boundary of the Hearne margin. A new result from this compilation is the discovery of an anomaly within the upper mantle beginning at depths of ~80–100 km. This lithospheric mantle conductor has electrical properties similar to those for the central Slave craton mantle conductor, which lies directly beneath the major diamond-producing Lac de Gras kimberlite field. While the Saskatchewan mantle conductor does not directly underlie the Fort à la Corne kimberlite, which is associated with the Sask craton, the spatial correspondence is close.

Magnetotelluric tracing of the Carpathian conductivity anomaly in the Vienna Basin

1996 ◽  
Author(s):  
L. Vero ◽  
A. Madarasi ◽  
W. Seiberl ◽  
G. Varga
Keyword(s):  
Conductivity Anomaly ◽  
Vienna Basin

The Tamar conductivity anomaly

1986 ◽  
Vol 17 (1) ◽  
pp. 34-35 ◽  
Author(s):  
W. D. Parkinson ◽  
R. Hermanto
Keyword(s):  
Conductivity Anomaly
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