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United States

Emigrant / Rain Mine

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Emigrant / Rain Mine

Location: 16 km SE from Carlin, Nevada, United States

Regional Office:

1655 Mountain City Highway
Elko
Nevada, United States
89801

Contacts:

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Categories

Overview

Mine TypeOpen Pit
StageResidual leach
Commodities
  • Gold
Mining Method
  • Truck & Shovel / Loader
Production Start... Lock
SnapshotThe Emigrant/Rain mine is part of the Carlin complex.

The Emigrant open pit ceased mining operations in December 2018 while residual leaching of gold continues.

Owners

SourceSource
CompanyInterestOwnership
Newmont Corp. 38.5 % Indirect
Barrick Gold Corp. (operator) 61.5 % Indirect
On July 1, 2019, Barrick's Goldstrike and Newmont's Carlin operation were contributed to the Nevada Gold Mines joint venture and are now collectively referred to as Carlin.

Barrick is the operator of the Nevada Gold Mines LLC joint venture and owns 61.5%, with Newmont owning the remaining 38.5% of the joint venture.

Contractors

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SourceSource

Deposit type

  • Carbonate hosted
  • Carlin-type

Summary:

The mineral deposits along the Carlin Trend form a suite of deposits known as Carlin-type. Carlin deposits comprise stratabound disseminated gold mineralization hosted by Silurian-Devonian carbonate rocks that have been metamorphosed to varying extents. The deposits are hydrothermal in origin and are usually structurally controlled.

Gold mineralization at the Emigrant deposit is located along the flanks of the Emigrant antiform with the majority of the mineralization being concentrated on the western limb in a shallow, southwestdipping tabular orebody located at the contact between siltstones of the Mississippian Webb Formation and limestones of the Devonian Devils Gate Formation.

Major lithologic units recognized in the Emigrant deposit from surface mapping, drill hole logging, and litho-chemistry include; Tertiary Indian Wells (Tiw), Tertiary Elko (Te), Mississippian Chainman (Mc), Mississippian Webb (Mw), Devonian Woodruff (Dw), Devonian Devils Gate (Ddg) Formations, and the Devonian Nevada Group (Dng).

Detailed surface mapping and drill hole interpretation indicates that there are a series of N10ºW to N10ºE structures present at Emigrant (Emigrant Fault system). The Emigrant Fault appears to bound the hanging wall to the deposit and places the Mississippian Webb Formation (east side) against the Pennsylvanian Tonka, Mississippian Chainman and Devonian Woodruff formations (west side). Emigrant demonstrates the typical Carlin Trend deposit geochemical signature in that fine-grained gold mineralization is associated with Au, As, Sb, and Hg. Gold occurs as elemental gold encapsulated in quartz as well as in submicrometer substitutions in arsenian rims over pyrite.

Reserves

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Mining Methods

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Comminution

Crushers and Mills

Milling equipment has not been reported.

Processing

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Production

Combined production numbers are reported under Carlin Complex

Production Costs

Commodity production costs have not been reported.

Heavy Mobile Equipment

Fleet data has not been reported.

Personnel

Mine Management

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Oct 28, 2024
....................... Subscription required ....................... Subscription required Subscription required Oct 28, 2024
....................... Subscription required ....................... Subscription required Subscription required Oct 28, 2024

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Aerial view:

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