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Nisbet (Oregon Quicksilver), Oak Grove Fork, Clackamas Co., Oregon, USA

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Latitude & Longitude (WGS84): 45° 4' 49'' North , 121° 58' 29'' West
Latitude & Longitude (decimal): 45.08028,-121.97472
Köppen climate type:Csb : Warm-summer Mediterranean climate


REF:Deposit:: OR. DEPT. GEOL. AND MIN. INDUST. BULLETIN 14-D, 1951,
Deposit:: P. 20-21.
Deposit:: U.S. BUR. MINES IC 8252, 1965.
Deposit:: BROOKS, H. C., 1963 , QUICKSILVER IN OREGON: ODGMI BULL. 55 , 223 P.
Deposit:: BROWN, R. E. AND WALKER, G. W., 1943, CLACKAMAS QUICKSILVER DISTRICT, OREGON: USGS UNPUBLISHED MS
Deposit:: OREGON METAL
Commodities (Major) - Zeolites, Mercury
Development Status: Past Producer
Host Rock Unit: Upper Gardner Dolomite
Structure: Many Small Faults
Host Rock: Basalt


Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


3 valid minerals.

Rock Types Recorded

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Alphabetical List Tree Diagram

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

Holocene - Pleistocene
0 - 2.588 Ma



ID: 2908889
Landslide and debris-flow deposits

Age: Pleistocene (0 - 2.588 Ma)

Description: Unstratified mixtures of fragments of adjacent bedrock. Locally includes slope wash and colluvium. Largest slides and debris flows occur where thick sections of basalt and andesite flows overlie clayey tuffaceous rocks. May include some deposits of late Pliocene age

Comments: In OR291, includes active or recently active slides marked by tilted trees and bent tree trunks. Includes debris flow deposits along the margins of Grande Ronde Valley formed during catastrophic collapse of high-standing dacite cliffs at Mt. Emily.Landslide deposits not included in State map (OR001) in Umatilla River Basin, but included in OR292

Lithology: Major:{coarse alluvium}, Minor:{fine alluvium}

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]

Quaternary
0 - 2.588 Ma



ID: 1492900
Quaternary surficial deposits; Landslide deposits

Age: Pleistocene (0 - 2.588 Ma)

Description: Landslide deposits; mixed grained sediments

Lithology: Major:: {landslide, matrix: silty sand}

Reference: R.L. Smith, W.P. Roe (compilers). Oregon Geologic Data Compilation, release 6. State of Oregon Department of Geology and Mineral Industries. [20]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License



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