Epithermal Deposit

epithermal deposit

[¦ep·ə′thər·məldə′päz·ət]
(geology)
Ore deposit formed in and along openings in rocks by deposition at shallow depths from ascending hot solutions.

Epithermal Deposit

 

a type of hydrothermal mineral deposit formed at shallow depths at moderate pressures and comparatively low temperatures (200°–50°C). Epithermal deposits were identified by the American geologist W. Lindgren in 1907.

References in periodicals archive ?
In addition, a combination of consistent stratigraphy and a strong continuous structural environment makes the Tenoriba project highly prospective to host a significant epithermal deposit," stated Ian Foreman, P.
Most western readers will recognize orogenic, intrusion-related, skarn, and Carlin-type deposits as being described within the first three groups of host rocks, and the epithermal deposit types as being discussed within the volcanic rock-related section of the book.
west of Warroo is Macmin's Twin Hills silver/lead/zinc epithermal deposit,
The Cueva Blanca is a promising high-grade gold/silver vein prospect with common geologic characteristics to the El Pinon in Chile, which is a unique type of epithermal deposit that formed in a specific geologic environment.
The Golden Wonder Project is a past producing high-grade, epithermal deposit, with veins averaging two to three feet in width, located in the historically precious metal rich Colorado Mineral Belt.
The Los Cochis epithermal deposit is comprised of several northwest trending, northeast-dipping veins, including the El Fresno, Canuto, Las Chivas, Campamento and Reyes veins.
Historically a significant silver district, the Cachinal de la Sierra area is located within the Paleocene Gold Belt of northern Chile which hosts several significant gold and silver deposits, including Meridian Gold Inc's El Penon Silver-Gold Mine, a low sulphidation-style epithermal silver-gold deposit and one of the worlds lowest cost gold producers, 60km to the northeast, and Diamond Rose NL's Guanaco Gold Mine, a high sulphidation-style epithermal deposit which was mined as a heap leach operation during the early 1990's by Amax Gold Inc and later Kinross Gold Corporation,12km to the southwest (Figure 1).
Recently, Opus has diversified its exploration efforts to include a diamond exploration project in Canada's Nunavut Territory, a high grade silver/gold epithermal deposit in Mexico, and a silver/gold project in Northern Ontario, Canada.
Recently, TNK has diversified its exploration efforts to include a diamond exploration project in Canada's Northwest Territories, a high grade silver/gold epithermal deposit in Mexico, and a silver/gold project in Northern Ontario, Canada.
The above geology indicates potential for a near surface epithermal deposit within the Tertiary strata or a higher grade gold deposit in the underlying Paleozic strata.
The property contains a gold epithermal deposit hosted by highly fractured sandstones of the Chimu formation and an Au-Cu porphyry deposit, directly adjacent to it.
The La Arena epithermal and porphyry deposits, covering an area exceeding 3 km2,are part of a multi phased mineralized system displaying potassic and phyllic alteration zones in the porphyry, intermediate sulfidation alteration in the adjacent gold epithermal deposit and overprinting the porphyry and finally hydrothermal and phreatic breccias.