US Forest Service 171, Clackamas Co., Oregon, USA
| Latitude & Longitude (WGS84): | 44° 58' 37'' North , 121° 49' 48'' West |
|---|---|
| Latitude & Longitude (decimal): | 44.97694,-121.83000 |
| GeoHash: | G#: 9rcrgey1e |
| Köppen climate type: | Csb : Warm-summer Mediterranean climate |
REF:Deposit:: OR. DEPT. GEOL. AND MIN. INDUST. SPECIAL PAPER 3, 1978,
Deposit:: PLATE 1, NO. 440.
Commodities (Major) - Stone - Crushed/Broken
Development Status: Past 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
| 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] |
| Pliocene 2.588 - 5.333 Ma ID: 1451774 | Early High Cascade Volcanics Age: Pliocene (2.588 - 5.333 Ma) Description: Outerson Formation; volcanic rocks; mixed lithologies; mixed lithologies Lithology: Major:: {breccia, olivine phenocrysts}; Major:: {basalt flows, olivine phenocrysts}; Major:: {basaltic andesite flows, olivine phenocrysts; mineralogy: olivine-pyroxene}; Major:: {lapilli tuff, olivine phenocrysts} Minor:: {intrusives, olivine phenocrysts}; Minor:: {andesite flows, olivine phenocrysts; mineralogy: plagioclase clinopyroxene olivine} Reference: R.L. Smith, W.P. Roe (compilers). Oregon Geologic Data Compilation, release 6. State of Oregon Department of Geology and Mineral Industries. [20] |
| Miocene 5.333 - 23.03 Ma ID: 2839637 | Flows and clastic rocks, undifferentiated Age: Miocene (5.333 - 23.03 Ma) Description: Chiefly basaltic andesite and andesite lava flows and flow breccia containing plagioclase and pyroxene (hypersthene and augite) phenocrysts, mudflows (lahars), and volcanic conglomerates; locally includes some dacite flows. Includes lesser, coarse- to fine-grained epiclastic volcanic sedimentary rocks and ash-flow and air-fall tuffs. Partly equivalent in age to unit Tba and may be partly coeval with younger parts of unit Tstb. Locally altered adjacent to larger intrusions. The oldest radiometrically dated rocks assigned to this unit are about 17 Ma (Sutter, 1978); in part lapped by flows questionably assigned to unit Tba, radiometrically dated at about 10 Ma, and unconformably overlain by flows of unit Trb. Includes some of rocks formerly mapped as Sardine Formation and some mapped as Rhododendron Formation Lithology: Major:{volcanic,conglomerate,andesite}, Incidental:{basalt, dacite, felsic volcanic, mafic volcanic, mixed clastic, basaltic andesite} 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] |
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