Merritt tunnel, Ruby Hill, Eureka District, Eureka Co., Nevada, USA
Latitude & Longitude (WGS84): | 39° 29' 2'' North , 115° 58' 42'' West |
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Latitude & Longitude (decimal): | 39.48410,-115.97840 |
GeoHash: | G#: 9rj88gg5e |
Locality type: | Tunnel |
Köppen climate type: | BSk : Cold semi-arid (steppe) climate |
Deposit: Gold ore is localized by brecciated zones in dolomite located in lower NE W york canyon which was the site of the initial discovery in the district. E. Affranchino of eureka, did some work on the tunnel in the early 60's, but the relatively small amounts of gold-rich ore appear to be unlike the Ag-Pb ore found elsewhere (nolan 1962) ; info.src : 1 pub lit
Development: E. Affranchino did some work on the tunnel in the early 1960's but the small amounts of gold ore are unlike the Pb-Ag ore common to the district
Geology: Cold ore occurs in brecciated dolomite
Rock formation(s): Hansen Creek Dolomite
Ore(s): Fractured Permeable Zones
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Standard Detailed Strunz Dana Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
Rock Types Recorded
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Alphabetical List Tree DiagramDetailed Mineral List:
ⓘ 'Dolostone' Reference: U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
ⓘ 'commodity:Gold' Formula: Au Reference: |
List of minerals arranged by Strunz 10th Edition classification
Unclassified Minerals, Rocks, etc. | |||
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ⓘ | 'Dolostone' | - |
List of minerals arranged by Dana 8th Edition classification
Unclassified Minerals, Rocks, etc. | |||
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ⓘ | 'Dolostone' | - |
List of minerals for each chemical element
Regional Geology
This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.
Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org
Quaternary - Miocene 0 - 23.03 Ma ID: 3185380 | Cenozoic sedimentary rocks Age: Cenozoic (0 - 23.03 Ma) Lithology: Sedimentary rocks Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154] |
Middle Ordovician - Furongian 458.4 - 497 Ma ID: 2995364 | Carbonate Shelf Sequence - Limestone, dolomite, and quartzite Age: Paleozoic (458.4 - 497 Ma) Stratigraphic Name: Pogonip Group; Ely Springs Dolomite; Eureka Quartzite Description: Carbonate platform rocks are present in Nye, Lincoln, Elko, Eureka, Lander, White Pine, Esmeralda, and Clark Counties. This unit is primarily Ordovician in age but does include Upper Cambrian rocks at the base (Page, Lundstrom, and others, 2005). The Pogonip Group, including the Antelope Valley Limestone is the most common name used. In Clark County it also includes the Ely Springs Dolomite, and includes the Eureka Quartzite in White Pine and Clark Counties. Unit OCc corresponds to depositional sequence 2 of Cook and Corboy (2004). Where Ocq is mapped separately, it overlies OCc. Otherwise OCc is depositional under SOc, or in southern Nye and Clark Counties, it is overlain directly by DSc where SOc is not differentiated. Unit OCc depositionally overlies unit Cc. Comments: Original map source: Crafford, A.E.J., 2007, Geologic Map of Nevada: U.S. Geological Survey Data Series 249, 1 CD-ROM, 46 p., 1 plate; Scale 1:250,000. Lithology: Major:{limestone,dolostone,quartzite} Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133] |
Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License