Mine detail: New Idria

Previously called 'Santa Rita'

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Location

Lat / long:

36.40105, -120.72877

Resource(N)

Primary:	Asbestos
Ore:	Chrysotile
Orebody form:	IRREGULAR
Discovery year:	1957

Production

Operation type:	Unknown
Production size:	Large
Development status:	Producer

Geology

Host rock:	Franciscan Sandstone;Panoche Shale And Sandstone
Host type:	Serpentinite
Associated rock:	Franciscan Complex;Panoche Formation
Associated type:	Shale,Sandstone
Structure:	Northwest-Trending Coalinga Anticline, New Idria Thrust Fault. Deposit Highly Sheared
Tectonic:	California Coast Ranges
Alteration processes:	Oxidation Of Upper 15 To 20 Ft. Of Deposit. Much Serpentine Is Recrystallized To Flaky, Matted Chrysotile.

References

MRDS	W031982
DEP	10080649
Reference	{Deposit:: LINN,R.K., 1968, NEW IDRIA MINING DISTRICT -IN- ORE DEPOSITS OF THE UNITED STATES 1933-1967 (GRATEN-SALES VOLUME). NEW YORK: AM. INST OF MNG., MET., AND PET. ENG., INC., PP. 1623-49.}{Deposit:: RICE,S.J., 1966, CAL. DIV. OF MINES AND GEOL. BULL. 191, PP 86-92.}
Reporter	Zigler, Jan L. (Huber, Donald F.)