Quincy Shaft (Putnam Mining Company; Park Utah Consolidated Mines; Daly West Group; United Park City Mines), Park City Mining District, Summit County, Utah, USAi

Regional Level Types
Quincy Shaft (Putnam Mining Company; Park Utah Consolidated Mines; Daly West Group; United Park City Mines)	Group of Shafts
Park City Mining District	City
Summit County	County
Utah	State
USA	Country

Structure: Uinta-Cottonwood Arch, Sevier Overthrust Belt, Park City Anticline Northeast Striking Fissures

Alteration: Oxidation To A Depth Of 300 Ft

Tectonics: Basin And Range - Colorado Plateau Transition Zone, Cordilleran Hinge Line

Deposit: Both bedded replacement and vein ore bodies occur. Bedded deposits are strata bound, tabular replacement zones in the park city, formation, generally lying within a few 10's of feet from fissures or fracture zones and having thicknesses of 4 to 5 feet. The horizon in which replacement deposits occur is 40 ft above the top of the weber quartzite and is comprised of a pure blue limestone. Vein deposits are located within northeast striking fault zones dipping moderately to the northwest. These fault zones lie south of the daly-ontario fissure system but are similar in character. These same fault zones also control the distribution of replacement ore bodies. Replacement ore is more abundant than vein ore. The replacement horizon occurs at 110 ft in the quincy shaft and dips 20 degrees to the northwest

Development: Claims were probably located in the late 1880's or early 1890's. Claims leased to Col. W.m. Ferry under the name of putnam mining co., in 1898 or 1899 the quincy mining company was formed and active exploration began. Ore hit at 110 ft level of shaft and production began in 1901, reaching 725,000 dollars. In 1902 it was the largest producer of the district. Property consolidated with daly west mine in 1902, As a result of la W suits concerning the apex law. Quincy plant was closed in 1904 and was since worked through the daly west tunnels. Property later consolidated with park utah mining co. In 1920 and with united park city mines in 1753 production has continued on a small, intermittent basis through the 1960's

Geology: Fissure deposits located along fault contact between weber quartzite and park city formation, bedding dips 20 degrees to northwest

Rock formation(s): Intermediate Dikes
Weber Quartzite;Park City Formation


Ore(s): Northeast Striking Fissures, Favorable Horizons At Base Of Park City Formation Adjacent To Fissures

Other Databases

Link to USGS MRDS:	10014900

Other Regions, Features and Areas containing this locality

References