Mine detail: Jessup Gold Prospect

Previously called 'North Jessup PropertyCentral Jessup DistrictGold King claim (Central Jessup district)Valley King claims (Central Jessup district)San Jacinto ZoneSan Jacinto South ZoneSan Jacinto West Zone'

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Location

Lat / long:

39.95795, -118.85988

Resource(M)

Primary:	Gold, Silver
Tertiary:	Antimony, Tungsten, Mercury, Arsenic
Ore:	Gold, Cerargyrite, Scheelite
Gangue:	Quartz
Orebody form:	tabular to blanket to irregular
Discovery year:	1908

Production

Operation type:	Surface-Underground
Deposit type:	vein; some placer
Production size:	Small
Development status:	Past Producer
Production years:	1908-1940, sporadically
First production started:	1908
Last production ended:	1940

Geology

Host type:	Metavolcanic Rock,Andesite,Rhyolite
Structure:	NE-trending faults. Structural deformation in the Jessup area was episodic and controlled mainly by caldera-related structures, which are predominantly normal faults along ring fractures. These structures appear to have been reactivated following lithification of the basin-fill material.
Alteration processes:	There is widespread argillic and limonitic alteration with associated silicification and mineralization. Altered volcanic rocks show characteristically anomalous geochemical signatures in mercury, arsenic, and antimony. Alteration is that typically associated with volcanic-hosted epithermal systems and consists of blanket argillic bleaching with disseminated limonite (pyrite at depth) along a broad arc across the district. All gold mineralization in the district appears to be associated with this regional alteration pattern, which in turn is controlled by both caldera structures and rock permeability. The lapilli tuffs appear to be the most permeable rocks in the area.Alteration and mineralization post-date the rhyolite.

References

DEP	10310348
Reference	{Deposit:: Vanderburg, W.O., 1940, USBM Information Circular 7093}{Deposit:: NBMG Bull. 83}{Deposit:: USBM, 1979, MILS}{Deposit:: NBMG MI-96, MI-97, MI-98}{Deposit:: Jerry Baughman, oral communication, 1999}{Deposit:: NBMG files,unpublished report, 1992}{Deposit:: Carson Sink Land Status, 1974.}{Deposit:: Long, K.R., DeYoung, J.H., Jr., and Ludington, S.D., 1998, Database of significant deposits of gold, silver, copper, lead, and zinc in the United States; Part A, Database description and analysis; part B, Digital database: U.S. Geological Survey Open-File Report 98-206, 33 p., one 3.5 inch diskette.}{Deposit:: NDT Ventures Ltd., press release, 8/21/02.}{Deposit:: Pan-Nevada Gold Corp. website and press releases, 2006.}{Deposit:: Winter, L.D.S., 1992, Geological Report on the Jessup Property Nevada for Southwestern Gold Corporation, unpublished, in NBMG MD File # 2550.}{Deposit:: Baughman, J and Paterson, J., 1992, Drilling Report on the Jessup Property, Churchill County, Nevada, for Southwestern Gold Corporation, unpublished, in NBMG MD File # 2550.}{Deposit:: Americomm press release 1997.}{Deposit:: NDT Ventures website http://www.mininglife.com/operations/operationdetail.asp?Property=Hannah}{Deposit:: Willden, Ronald, and Speed, R.C., 1974, Geology and Mineral Deposits of Churchill County, Nevada: NBMG Bull. 83.Vanderburg, W.O., 1940, USBM Information Circular 7093}
Reporter	La Pointe, D. D., Schruben, Paul G.