Mark Your Calendar! Next Meeting – Thursday, 17 March 2016
Thursday, 21 April 2016
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Presenter: Eugene Spierling, Director at Southern Silver Exploration Corp.
Program: Estimates of the withdrawn Uranium Endowment of the Arizona Strip District, Northern Arizona
Program Synopsis: On January 9, 2012, the Department of the Interior withdrew approximately one million acres in the Arizona Strip uranium district from mineral entry for 20 years. The following April, the affected exploration companies together with several local counties filed a lawsuit in District Court alleging that the Secretary did not adhere to mandated statutory procedures and failed to address scientific controversies related to the withdrawal in the final environmental impact study. One of the most significant controversies was the size of the resource endowment; a paramount factor in determining virtually all impacts of the action and the resulting decision to withdraw the lands.
The impact study used the paucity of published estimates to reduce a potential resource of world class importance to insignificance. The preliminary conclusions were coupled with exaggerated impacts from mining to justify the full withdrawal decision even before publication of the final report. While acknowledging that the Administration clearly did not make its case justifying any environmental threat to the Grand Canyon, the Arizona District Court upheld the legality of the withdrawal on September 30, 2014 and found no legal principle that prevents DOI from “acting in the face of uncertainty.”
More about Eugene Spierling
Mr. Spiering is an exploration geologist with over 30 years of international experience in mineral exploration and senior level project management in the Western United States, South America, and Europe. He served 14 years as VP exploration for Rio Narcea Gold Mines in Spain where he participated in the discovery of the El Valle gold deposit and managed the definition of the Aguablanca nickel sulfide deposit. During his 9 year term as VP Exploration with Quaterra Resources, he managed the definition of two porphyry copper deposits in Nevada and participated in the discovery of three uranium breccia pipe deposits in northern Arizona. He presently serves as a consultant to Metamin Enterprises, a director of Southern Silver Corp. and VP exploration for Group Ten Metals Inc. Mr. Spiering is a registered member of Society of Mining, Metallurgy, & Exploration and a fellow member of Australasian Institute of Mining and Metallurgy.
Know Any YOUNG Miners?
Tell them about Young Miners of Arizona! Initiated in 2015, this new Arizona SME Section targets members with 15 years or less experience in the mining industry. It is a great transition for newly graduated students to connect with their peer group. Click the links below for more information!
2015–2016 Maricopa Section Officers
Program / Chair
Arizona Geological Survey
480 831-0310 x 272
Secretary & Communications
480 831-0310 x 269
Donald M. Burt,Ph.D.
Arizona State University