Northern Light Claim, Mt St Helens District, Skamania Co., Washington, USAi
Regional Level Types | |
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Northern Light Claim | Claim |
Mt St Helens District | Mining District |
Skamania Co. | County |
Washington | State |
USA | Country |
Latitude & Longitude (WGS84): | 46° 21' 9'' North , 122° 11' 54'' West | |||||||||||||||
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Latitude & Longitude (decimal): | 46.35261,-122.19840 | |||||||||||||||
GeoHash: | G#: c21peq1zd | |||||||||||||||
USGS MRDS Record: | 10301813 | |||||||||||||||
Locality type: | Claim | |||||||||||||||
Köppen climate type: | Csb : Warm-summer Mediterranean climate | |||||||||||||||
Nearest Settlements: |
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A Cu claim
Regions containing this locality
North America Plate | Tectonic Plate |
Commodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.No minerals currently recorded for this locality.
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
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] |
Miocene 5.333 - 23.03 Ma ID: 1426337 | Spirit Lake pluton |
Oligocene - Late Eocene 23.03 - 37.8 Ma ID: 2764459 | Upper Eocene volcanic rocks Age: Paleogene (23.03 - 37.8 Ma) Stratigraphic Name: Goble Volcanics Member; Pe Ell Volcanics Member; Hatchet Mountain Formation; Teanaway Formation Description: Predominantly basalt flows and flow breccia; includes some pyroclastic and andesite rocks. Chiefly in western Washington. Comments: Luedke, 1998, indicates that this unit has a large volume of andesite as compared to basalt. Walsh and others, 1987, indicate that this unit is almost entirely basaltic andesite flows of Oligocene to Eocene age with minor andesite, dacite, and basalt flows, and thin interbeds of shale, tuff, and volcanic sandstone. Hatchet Mountain formation consists of a base of basaltic conglomerate, sandstone, and water-laid tuff, underlying 2750 feet of basaltic and andesitic lava flows, flow breccia, pyroclastic,and tuffaceous sedimentary rocks. Increase in thickness to south and east as Cowlitz changes from marine to nonmarine (Roberts, 1958). Roberts, 1958, also suggests that Goble volcanic series includes Hatchet Mountain and parts of the Cowlitz and Toutle Formations (see WAOlv) as opposed to being contained within the Cowlitz formation. Phillips, 1987, maps the portion of the unit south of the Lewis River as basaltic-andesite and basalt flows with interbedded tuff and basaltic sandstone and conglomerate. North of the Lewis River are basaltic-andesite lava flows and flow breccia of the Goble Volcanics with interbedded sedimentary rocks. Small polygon in northern Ferry County tagged as WAEv1b in digital coverage is really WATas in original map. Original map source: Raines, Gary L., and Johnson, Bruce R., 1996, Digital representation of the Washington state geologic map; a contribution to the Interior Columbia River basin ecosystem management project, U.S. Geological Survey Open-file report 95-0684, 20 p., plus digi Lithology: Major:{basalt,basaltic andesite}, Incidental:{dacite, rhyolite, conglomerate, sandstone, siltstone, shale, clastic, 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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