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US Forest Service 064 (US Forest Service 64), Clackamas Co., Oregon, USA

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Latitude & Longitude (WGS84): 45° 6' 47'' North , 122° 7' 59'' West
Latitude & Longitude (decimal): 45.11306,-122.13306
GeoHash:G#: c210su96t
Köppen climate type:Csb : Warm-summer Mediterranean climate


REF:Deposit:: OR. DEPT. GEOL. AND MIN. INDUST. SPECIAL PAPER 3, 1978,
Deposit:: PLATE 1, NO. 184.
Commodities (Major) - Stone - Crushed/Broken
Development Status: Producer


Commodity List

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


No minerals currently recorded for this locality.

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

Pleistocene - Pliocene
0.0117 - 5.333 Ma



ID: 1543819
Boring Volcanic Field

Age: Cenozoic (0.0117 - 5.333 Ma)

Description: Older basalt and basaltic andesite; 425m thick; basalt

Lithology: Major:: {basaltic andesite flows, gray}; Major:: {basalt flows, gray; olivine phenocrysts} Minor:: {fluvial volcaniclastic rocks}; Minor:: {scoria, red}

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

Neogene
2.588 - 23.03 Ma



ID: 3186305
Cenozoic volcanic rocks

Age: Neogene (2.588 - 23.03 Ma)

Stratigraphic Name: Columbia River Basalt

Comments: Columbia Plateau

Lithology: Flood basalt(s); mafic volcanic rocks; basalt

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]

Tortonian - Burdigalian
7.246 - 20.44 Ma



ID: 2761708
Basaltic and andesitic rocks

Age: Miocene (7.246 - 20.44 Ma)

Description: Lava flows and flow breccia of hypersthene and olivine andesite, basaltic andesite containing plagioclase and pyroxene phenocrysts, and basalt; many flows contain phenocrysts of both hypersthene and augite. Includes interbedded volcaniclastic and epiclastic rocks mostly of andesitic composition, but partly of dacitic or rhyodacitic composition. Includes really restricted flows of silicic andesite or dacite. Upper part of unit mostly unaltered, although olivine crystals are locally altered to clay minerals. Lower parts commonly altered; secondary minerals include nontronite and saponite, chalcedony, calcite, and zeolites. Older parts of this unit locally are propylitically altered adjacent to larger intrusions. Erupted mostly from widespread, northwest- and north-trending dikes and dike swarms and related plugs and lava cones. Potassium-argon ages range from about 10 Ma to about 17 Ma. Much of this unit was previously assigned to the Sardine Formation (Peck and others, 1964), although the type locality of the Sardine Formation ("Sardine Series" as mapped by Thayer, 1939) may be older. Includes Elk Lake Formation (White, 1980a, 1980b), part of the Rhododendron Formation (Trimble, 1963; Wise, 1969), and andesite of Nohorn Creek of Hammond and others (1982)

Lithology: Major:{basalt,andesite,basaltic andesite}, Incidental:{dacite}

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



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