Mine detail: Lexington Mine

Previously called ''

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Location

Lat / long:

46.94658, -110.71084

Resource(M)

Primary:	Silver, Lead
Tertiary:	Zinc, Molybdenum
Ore:	Galena, Sphalerite
Orebody form:	TABULAR
Discovery year:	1891

Production

Operation type:	Unknown
Deposit type:	Vein
Production size:	Yes
Development status:	Past Producer

Geology

Host rock:	Belt, Neihart Quartzite;Gneiss And Schist
Host type:	Diorite
Associated rock:	Snow Creek Porphyry-Pluton & Dikes Of Rhyolite Porphyry;Pinto Diorite-Large Phenocrysts Of Feldspar & Hornblende
Associated type:	Diorite,Plutonic Rock
Structure:	Zone Of Igneous Intrusions Covering Over 800 Square Km, Domal Uplift Caused By Intrusion Of Snow Creek Porphyry, Northeast-Trending Fractures & Faults.
Tectonic:	Rocky Mountain Foreland

References

MRDS	W014737
DEP	10105726
Reference	{Deposit:: KLEINKOPF, M. D., WITKIND, I. J., AND KEEFER, W. R., 1972, AEROMAGNETIC, BOUGUER GRAVITY, AND GENERALIZED GEOLOGIC MAPS OF THE CENTRAL PART OF THE LITTLE BELT MOUNTAINS, MONTANA: U.S. GEOLOGICAL SURVEY MAP GP-837.}{Deposit:: ROBERTSON, A. F., 1951, MINES AND MINERAL DEPOSITS (EXCEPT FUELS), CASCADE COUNTY, MONTANA: U.S. BUREAU MINES INF. CIRC. 7589, 76 P.}{Production:: MAP SHOWN AS FIG. 9 IN USBM IC 7589 USED FOR ESTIMATE}
Reporter	Mlynarczyk, Meg S.