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Tertiary Gold-Bearing Channel Gravel in Northern Nevada ...
Tertiary Gold-Bearing Channel Gravel in Northern Nevada County California By Donald W. Peterson, Warren E: Yeend, Howard W. Oliver and Robert E. Mattick Abstract The remains of a huge Tertiary gravel-filled channel lie in the area between the South and itiddle Yuba Rivers m northern Nevada .
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GEOLOGICAL GEMS OF CALIFORNIA STATE PARKS | GEOGEM .
Besides gold, the auriferous gravels also contain an extensive array of plant and vertebrate fossils. Plant fossils indicate that during the time when the auriferous ... began cutting new channels. As the Sierra Nevada once again began to rise, these new river channels were incised and the ancestral channels became perched on ridge
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TERTIARY GRAVELS - GOLD PROSPECTING - Nugget Shooter Forums
Aug 16, 2012· Tertiary Channels (Clark, 1965, pp. 39-44). This article contains a brief history of mining operations and descriptions of the Tertiary channels of the Sierra Nevada region. Contains indexed map with list of principal deposits and bibliography. California's Gold-Bearing Tertiary Channels (Jenkins & .
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Sierra Geology | where rocks meet the human environment ...
The Upper Reaches of the Sierra Nevada Auriferous Gold Channels, California and Nevada Posted on August 9, 2013 by Unconformist Document by Garside, et. al., 2005 is now posted
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Tertiary Gravels of the Sierra Nevada California - Mining ...
Tertiary Gravels of the Sierra Nevada also known as Professional Paper 73 by Waldemar Lindgren is probably one of the most important publications written on the Auriferous Gravel Channels in the Sierra Nevada of California. These ancient river channels were the majority source of the massive placer gold deposits that supplied the Mother lode.
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You Bet - Red Dog District (MRDS #10310693) AU
Bedrock erosion degraded the rich gold-bearing veins and auriferous schists and slates as the rivers crossed the metamorphic belts of the Sierra Nevada. Upstream of the gold belts on the granitic Sierra Nevada batholith, channels are largely barren, but become progressively richer as they cross the metamorphic belt and the Mother Lode trend.
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Geologic history of the northern Sierra Nevada
Ancestral Yuba channels extended well into northwestern Nevada (Garside, 2005). It is within these channels that lag gravels containing California Gold Rush placer deposits are recovered. These were eroded from "mother lode" gold-bearing high grade rocks in the Tahoe region (Garside, 2005).
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Full text of "The Age of the Auriferous Gravels of the ...
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Nevada Bureau of Mines and Geology
Nevada Bureau of Mines and Geology Mackay School of Earth Sciences and Engineering University of Nevada, Reno . Business telephone: (775) 682-8753 ... Faulds, J.E., and Hinz, N.H., 2005, The upper reaches of the Sierra Nevada auriferous gold channels, in Rhoden, H.N., and others., eds., Window to the World, Geological Society of Nevada ...
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Paleovalley morphology and fluvial system evolution of ...
In the northern Sierra Nevada, California, Eocene–Oligocene fluvial sediments (the "auriferous gravels") rest unconformably in well-defined basement-incised paleovalleys, providing a record of paleolandscape geomorphology and drainage system evolution.
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Uplift of the Sierra Nevada, California | Geology ...
The upper reaches of the Sierra Nevada auriferous gold channels, in. Rhoden. H.N. et al eds., Window to the World : Geological Society of Nevada Symposium Proceedings, May 14–18, 2005. Google Scholar ...
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The upper reaches of the Sierra Nevada auriferous gold ...
The upper reaches of the Sierra Nevada auriferous gold channels, California and Nevada 5 Fig. 4. Map of known and speculative Eocene-Oligocene paleovalleys of northern California and western Nevada, showing some places men- tioned in text and the locations of more detailed figures.
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Full text of "The Age of the Auriferous Gravels of the ...
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The Significance of the Auriferous Gravels | The Grumpy ...
Apr 04, 2016· Quick background: Eocene river deposits in the Sierra Nevada are termed the Auriferous Gravels; these paleoplacers were a major source of gold and likely were also a major source for the modern placer deposits. The channels themselves are of interest because they might (or might not) indicate that the northern Sierra has been tilted since then.
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Dutch Flat District
The auriferous gravels were deposited at the confluence of three channels, which comprised a principle tributary to the ancient Yuba River to the north. The primary tributary flowed north from the Gold Run District before turning sharply southwest for about two miles through the Dutch Flat District.
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The upper reaches of the Sierra Nevada auriferous gold ...
The upper reaches of the Sierra Nevada auriferous gold channels, California and Nevada Larry J. Garside,* Christopher D. Henry, James E. Faulds, and Nicholas H. Hinz Nevada Bureau of Mines and Geology, MS 178, University of Nevada Reno, Reno, NV 89557-0088
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The upper reaches of the Sierra Nevada auriferous gold ...
The upper reaches of the Sierra Nevada auriferous gold channels, California and Nevada Larry J. Garside,* Christopher D. Henry, James E. Faulds, and Nicholas H. Hinz Nevada Bureau of Mines and Geology, MS 178, University of Nevada Reno, Reno, NV 89557-0088
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The Upper Reaches of the Sierra Nevada Auriferous Gold ...
The Upper reaches of the Sierra Nevada Auriferous Gold Channels, California and Nevada. Nevada Bureau of Mines and Geology. ABSTRACT. The world-famous Eocene "Auriferous Gravels" and overlying Oligocene rhyolitic ash-flow tuffs of northern California and adjacent northwestern Nevada lie unconformably on Mesozoic or Paleozoic basement rocks.
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Gold bearing deposits of California, Part I - Nevada Outback
The discovery of auriferous gravels in the Sierra range of California was the beginning of the new epoch. This find was made by James Wilson Marshall, a partner in the mill, who on January 19 th, 1848 observed in the debris washed down by the tail-race a glittering fragment of a mineral unknown to him.Suspecting it to be gold, he sought for further specimens, and obtained, in the course of a ...
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"RIDGE RUNNER" 20 ACRE GOLD MIMING CLAIM NEVADA .
Bedrock erosion degraded the rich gold-bearing veins and auriferous schists and slates as the rivers crossed the metamorphic belts of the Sierra Nevada. Upstream of the gold belts on the granitic Sierra Nevada batholith, channels are largely barren, but become progressively richer as they cross the metamorphic belt and the Mother Lode trend.
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Geology of the Ruby Tertiary Channel, Sierra - YouTube
Feb 06, 2014· Presentation entitled "The Ruby Tertiary Channel, Sierra County, California" delivered by Gary Clifton, P.Geo, at the Geological Society of Nevada (GSN) membership meeting in Reno, NV on January ...
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Sierra Geology | where rocks meet the human environment ...
The Upper Reaches of the Sierra Nevada Auriferous Gold Channels, California and Nevada Posted on August 9, 2013 by Unconformist Document by Garside, et. al., 2005 is now posted
learn moreDESCRIPTION OF THE GOLD BELT. - USGS
of ridges. Thus the Auriferous gravels are pre served in association with lavas along lines which descend from northeast toward southwest, across the trend of the range. The nearly horizontal strata, together with the Auriferous gravels and later lavas, constitute the second group of rocks recognized in the Sierra Nevada.
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Drift Mining.
Pershbaker drift mine on the Megalia ridge, Butte county. The auriferous channel covered by this claim, though narrow, has yielded as much perhaps to the area worked as any other in the State, Now that work has been resumed there, new life seems likely to be infused into drift operations along the entire gravel range, here very extensive.
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