First posted June 4, 2021 For additional information, contact: Director, Geology, Geophysics, and Geochemistry Science CenterU.S. Geological SurveyMS 973, Box 25046Denver, CO 80225 A challenge for the global economy is to meet growing demand commodities used in today’s advanced technologies. Critical minerals are (for example, elements, compounds, minerals) deemed vital economic national securi...

Tahltan Lake (104G113) map areas. This work adjoins and locally updates mapping in the Yehiniko Lake and Scud River areas (Brown and Gunning, IY8Y)a. b: Brown and Greig; IYYO. Browl: c t r r l . , 1990). The project objectives are to provide new 1:SO OOO-scale geologic maps accompanied by up-to-date geochemical and mineral occurrence data. and an assessment of thc mineral potential of the area....

This paper describes the application of a new multi-criteria decision making (MCDM) technique called fuzzy outranking to map prospectivity for porphyry Cu Mo deposits. Various raster-based evidential layers involving geological, geophysical, and geochemical geo-data sets are integrated for mineral prospectivity mapping (MPM). In a case study, 13 layers of the Now Chun deposit located in the Ker...