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Greg Dering

PhD student
Centre for Exploration Targeting (CET)

Contact details

Address
Robert Street Building, Rm 204
Centre for Exploration Targeting (CET)
The University of Western Australia (M006)
35 Stirling Highway
CRAWLEY WA 6009
Australia

Phone
+61 8 6488 1241

Email
gregory.dering@research.uwa.edu.au

Magmatic Ni-Cu-PGE sulphide systems account for ~60% of world Ni production and include some of the most valuable mineral camps on earth such as Noril'sl-Talnakh (Russia), Voisey's Bay (Canada), and Jinchaun (China). There is consensus that Ni-Cu-PGE sulphide deposits are associated with high-flux magma channels that transport mantle-derived mafic and ultramafic melts into the crust. However, the mode of emplacement and self-organization of these magma feeder systems remain poorly understood in the context of magmatic-sulfide systems. Important questions regarding magma emplacement include:

How is magma dispersed in large mafic systems?
How do propagating intrusions interact with country rocks at micro- to macro-scales?
What controls intrusion geometries (e.g. dyke, sill, and pipe) and the transitions from dyke-to-sill and vice versa?


To this point, research of Ni-Cu-PGE sulphide deposits has mainly addressed the petrology and geochemistry of the immediate environs of ore deposition whereas structural controls on the high-flux magma feeder systems have not been thoroughly investigated.

Greg Dering will conduct detailed field-based studies of well-exposed mafic intrusion networks and micro- and meso- scales to characterize magma flow directions, deformation associated with intrusion emplacement, and interaction with host rock structures. Detailed geologic mapping will utilize Unmanned Aerial Vehicle technology and Structure-from-Motion visualization software in concert with microstructural analytical techniques such as AMS.

Greg comes to CET from the Nevada Bureau of Mines and Geology in Reno, Nevada and is the recipient of an International Postgraduate Research Scholarship from UWA. Additional funding for this research is provided by CSIRO. Greg has a MS in geology from the University of Nevada, Reno and previously worked as an exploration geologist focused on gold and geothermal resources in Nevada and Alaska.

Supervisors:
Steven Micklethwaite, CET
Marco Fiorentini, CET
Stephen Barnes, CSIRO
Sandy Cruden, Monash University
Publications

Dering, G.M., and Faulds, J.E., 2013, Preliminary geologic map of the Tuscarora geothermal field, Elko County, Nevada Nevada Bureau of Mines and Geology Open File Report 13-06, 1:24,000 scale, 2 plates and text.

Anderson, R.B., Faulds, J.E, and Dering, G.M., 2013, Preliminary geologic map of the Central Lake Range, Southern Fox Range, and Northern Terraced Hills, Emerson Pass Geothermal Area, Washoe County, Nevada, Nevada Bureau of Mines and Geology Open File Report 13-10, 1:24,000 scale, 1 plate and text.

Faulds, J.E.; Hinz, N.H.; Dering, G.M.; and Siler; D.L., 2013, The Hybrid Model — The Most Accommodating Structural Setting for Geothermal Power Generation in the Great Basin, Western USA, Geothermal Resources Council Transactions, v. 37, p. 3-10.

Dering, G.M., and Faulds, J.E., 2012, Structural controls of the Tuscarora geothermal field, Elko County, Nevada, Geothermal Resources Council Transactions, v. 36, p. 41-46.