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Green Monster Mountain, Prince of Wales Island, Ketchikan District, Prince of Wales-Outer Ketchikan Borough, Alaska, USA

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Latitude & Longitude (WGS84): 55° 14' 44'' North , 132° 31' 59'' West
Latitude & Longitude (decimal): 55.24556,-132.53306
Köppen climate type:Cfb : Temperate oceanic climate


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Mineral List

Mineral list contains entries from the region specified including sub-localities

23 valid minerals.

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

Cretaceous
66 - 145 Ma



ID: 1744261
Gabbro and diorite of southeast Alaska

Age: Cretaceous (66 - 145 Ma)

Description: Gabbro. At Thunder Mountain on Dall Is., unit is deformed and altered stock- or sill-like hornblende(?) gabbro. On Cordova Bay of Prince of Wales Is. a small body intrudes Shipwreck Point fault and rocks of Wales Group. At West Arm of Chomondeley Sound and elsewhere, small plutons and plugs of gabbro and pyroxenite.

Lithology: Igneous

Reference: Wilson, F.H., Hults, C.P., Mull, C.G, and Karl, S.M. (compilers). Geologic map of Alaska. doi: 10.3133/sim3340. U.S. Geological Survey Scientific Investigations Map 3340, pamphlet 196. [21]

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


Localities in this Region

USA
  • Alaska
    • Prince of Wales-Outer Ketchikan Borough

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

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Toland, Douglas (2004), Famous Mineral localities: Green Monster Mountain, Prince of Wales Island, Alaska. Mineralogical Record: 35: 383-404, 419-420.

Mineral and/or Locality  
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