List of Earth MRI focus areas with mineral system = Orogenic

Orogenic

Metamorphic dewatering of sulfidic volcanic and/or sulfidic, carbonaceous and/or calcareous siliciclastic sequences during exhumation with fluid flow along dilatant structures. Iron minerals in host rocks are often sulfidized. Metavolcanic host rocks often contain volcanogenic seafloor sulfide deposits.

Color on map:

Deposit types

Name	Commodities	Critical minerals
Gold	Au, Ag	W, Te, As, Sb
Antimony	Sb, Au, Ag	Sb
Mercury	Hg, Sb	Sb
Graphite	Graphite (lump)	Graphite (lump)

References

Groves, D.I., Goldfarb, R.J., Gebre-Mariam, M., Hagemann, S.G., and Robert, F., 1998, Orogenic gold deposits--A proposed classification in the context of their crustal distribution and relationship to other gold deposit types: Ore Geology Reviews, v. 13, no. 1-5, p. 7-27. [Also available at https://doi.org/10.1016/S0169-1368(97)00012-7.]
Gray, J.E., and Bailey, E.A., 2003, The southwestern Alaska mercury belt, in Gray, J.E., ed., Geologic studies of mercury by the U.S. Geological Survey: U.S. Geological Survey Circular 1248, p. 19-22.
Goldfarb, R.J., Baker, T., Dubé, B., Groves, D.I., Hart, C.J.R., and Gosselin, P., 2005, Distribution, character, and genesis of gold deposits in metamorphic terranes: Littleton, Colo., Society of Economic Geologists, Inc., Economic Geology 100th Anniversary Volume, p. 407-450.
Goldfarb, R.J., Hofstra, A.H., and Simmons, S.F., 2016, Critical elements in Carlin, epithermal, and orogenic gold deposits, chap. 10 of Verplanck, P.L., and Hitzman, M.W., eds., Reviews in economic geology, volume 18--Rare earth and critical elements in ore deposits: Littleton, Colo., Society of Economic Geologists, Inc., p. 217-244. [Also available at https://doi.org/10.5382/Rev.18.10.]
Luque, F.J., Huizenga, J.M., Crespo-Feo, E., Wada, H., Ortega, L., and Barrenechea, J.F., 2014, Vein graphite deposits--Geological settings, origin, and economic significance: Mineralium Deposita, v. 49, no. 2, p. 261-277. [Also available at https://doi.org/10.1007/s00126-013-0489-9.]

Source: Hofstra, A.H., and Kreiner, D.C., 2020, Systems-Deposits-Commodities-Critical Minerals Table for the Earth Mapping Resources Initiative: U.S. Geological Survey Open-File Report 2020-1042, 24 p., https://doi.org/10.3133/ofr20201042.

Focus area	Region	States	Mineral Systems	Deposit types	Commodities
Central Alaska-Seward Peninsula Gold	Alaska	Alaska	Orogenic	Gold	gold; silver
Chugach Range Gold	Alaska	Alaska	Orogenic	Gold	gold; silver
Eastern Alaska Range-Talkeetna Mountains Gold	Alaska	Alaska	Orogenic	Gold	gold; silver
Eastern Brooks Range-Old Crow Gold	Alaska	Alaska	Orogenic	Gold	gold; silver
Southeast Alaska Orogenic Gold	Alaska	Alaska	Orogenic	Gold	gold; silver
Western Alaska Range Gold	Alaska	Alaska	Orogenic	Gold	gold; silver
Yukon-Tanana Upland Gold	Alaska	Alaska	Orogenic	Gold	gold; silver
Neoarchean Greenstone Belts of Minnesota, North Dakota and South Dakota	North Central	Minnesota; North Dakota; South Dakota	Orogenic	Gold	gold; silver
Levant and Carmel antimony prospects	Northeast	Maine	Orogenic	Antimony	gold; lead; silver
Shorey antimony prospect	Northeast	Maine	Orogenic	Antimony	gold; silver
Potomac Terrane	Northeast; Southeast	Maryland	Orogenic	Gold	gold; silver
Boise antimony	Northwest	Idaho	Orogenic	Antimony; Gold	gold; silver
Elk City antimony	Northwest	Idaho	Orogenic	Antimony; Gold	gold; silver
Mineral Hill	Northwest	Idaho; Montana; Wyoming	Orogenic	Antimony; Gold	gold; silver
Warren district vein system	Northwest	Idaho	Orogenic	Antimony; Gold	gold; silver
Yellow Pine/Stibnite Mining District	Northwest	Idaho	Orogenic	Gold	gold; silver
Sweetwater Arch	Rocky Mountains	Wyoming	Orogenic	Gold	copper; gold; mercury; silver
Virginia metamorphic sulfide	Southeast	Virginia	Orogenic	Gold	gold; silver
Klamath Mountains orogenic Au	Southwest	California; Oregon	Orogenic	Gold	gold; silver
NW Nevada Orogenic Antimony	Southwest	Nevada	Orogenic	Antimony	copper; gold; lead; silver
Sierra Nevada Foothills	Southwest	California	Orogenic	Antimony	copper; gold; lead; silver
Sierra Nevada foothills orogenic Au	Southwest	California	Orogenic	Gold	gold; silver
Southeast Mojave Desert	Southwest	California	Orogenic	Antimony	copper; gold; lead; silver

Focus area

Region

States

Mineral Systems

Deposit types

Commodities

Central Alaska-Seward Peninsula Gold

Alaska

Orogenic

Gold

gold; silver

Chugach Range Gold