Description
L.C. Swanson And Charles Swanson
Commodities
PrimaryMercury, Arsenic, Antimony, Sulfur, Gold
Commodity typeB
Deposit
Deposit sizeS
WorkingsUnknown
Orebody formIRREGULAR
Ore controlHydrothermally Altered Contacts, Shear Zones.
Materials
Ore mineralsAntimony, Calomel, Marcasite, Orpiment, Pyrite, Realgar, Stibnite, Sulfur
GangueGypsum, Jarosite
Geology
Host rockAndesite
Associated rockAndesite · Porphyritic Andesite;Augite Andesite Plug
StructureNormal Faults N 30 Deg E, Dip. 60 Deg Se. Cut The Mineralized Shear Zone.
AlterationPorphyritic Andesite Altered To Clay At Contact With Augite Andesite Plug.
Economic & production
Development statusPast Producer
First production1936
Discovery year1935
Identification
Deposit ID10042808
MRDS IDM060846
RegionNA
Data scoreB
Coordinates44.74622, -120.65195
References
WATERS, A.C., BROWN, R.E., COMPTON, R.R., STAPLES, L.W., WALKER, G.W., AND WILLIAMS, HOWELL, 1951, QUICKSILVER DEPOSITS OF THE HORSE HEAVEN MINING DISTRICT OREGON: USGS BULL. 969-E, P. 142-1BROOKS, H.C. 1963, QUICKSILVER IN OREGON: OREGON DEPT. GEOL. AND MIN. IND. BULL. 55, P. 124BAILEY, E. H., USGS PERSONAL FILES1943 GEOLMAP R.E. BROWN AND G.W. WALKER, BULL. 969-BROOKS, H.C., 1963, P. & BAILEY, E. H., USGS, PERSONAL FILES