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Escanaba Trough, Southern Gorda Ridge, Juan de Fuca Ridge complex, East Pacific Rise, Pacific Ocean

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Latitude & Longitude (WGS84): 40° 56' 57'' North , 127° 29' 28'' West
Latitude & Longitude (decimal): 40.94938,-127.49119


Axial valley at spreading center with massive sulfide deposits are associated with small sediment hills, which were uplifted by the intrusion of sills and laccoliths within the sediment.


Mineral List


40 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

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



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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Tormanen, T O & Koski, R A (2000) Bismuth and Gold Mineralogy of Pyrrhotite-rich Massive Sulfide Deposits From the Escanaba Trough, Southern Gorda Ridge. Eos Trans. AGU, 81 (48), Fall Meet. Suppl., 2000
Tuomo Törmänen (2005) Ore Mineralogy, Geochemistry, and Formation of the Sediment-hosted Sea Floor Massive Sulfide Deposits at Escanaba Trough, NE Pacific, with Emphasis on the Transport and Deposition of Gold. Thesis University of Oulu
Törmänen, T. O., & Koski, R. A. (2005). Gold enrichment and the Bi-Au association in pyrrhotite-rich massive sulfide deposits, Escanaba Trough, Southern Gorda Ridge. Economic Geology, 100(6), 1135-1150.

Mineral and/or Locality  
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