{"product_id":"2940149036004","title":"Porphyry Copper Assessment of Europe, Exclusive of the Fennoscandian Shield","description":"The U.S. Geological Survey (USGS) collaborated with \u003cbr\u003eEuropean geologists to assess resources in porphyry copper \u003cbr\u003edeposits in Europe, exclusive of Scandinavia and Russia. \u003cbr\u003ePorphyry copper deposits in Europe are Paleozoic and Late \u003cbr\u003eCretaceous to Miocene in age. A number of the 31 known \u003cbr\u003ePhanerozoic deposits contain more than 1 million metric tons \u003cbr\u003eof contained copper, including the Majdanpek deposit, Serbia; \u003cbr\u003eAssarel, Bulgaria; Skouries, Greece; and Rosia Poeni, Romania. Five geographic areas were delineated as permissive tracts \u003cbr\u003efor post-Paleozoic porphyry copper deposits. Two additional \u003cbr\u003etracts were delineated to show the extent of permissive igneous rocks associated with porphyry copper mineralization related to the Paleozoic Caledonian and Variscan orogenies. \u003cbr\u003eThe tracts are based on mapped and inferred subsurface distributions of igneous rocks of specific age ranges that define areas where the occurrence of porphyry copper deposits within \u003cbr\u003e1 kilometer of the Earth’s surface is possible. These tracts \u003cbr\u003erange in area from about 4,000 to 93,000 square kilometers. \u003cbr\u003eAlthough maps at a variety of different scales were used in the \u003cbr\u003eassessment, the final tract boundaries are intended for use at a \u003cbr\u003escale of 1:1,000,000","brand":"ReadCycle","offers":[{"title":"Default Title","offer_id":47067939111152,"sku":"2940149036004","price":2.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/7593\/9824\/files\/2940149036004_p0.jpg?v=1763711794","url":"https:\/\/shop-qa.barnesandnoble.com\/products\/2940149036004","provider":"Barnes \u0026 Noble (DEV)","version":"1.0","type":"link"}