Bulletin of the United States Geological SurveyThe Survey, 1971 - Geology |
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... anomalous concentra- tions of metals ---- 10 4. Magnitude of geochemical anomalies rated as strong , mod- erate , or weak , for each element and each tract .. 11 111 CONTRIBUTIONS TO ECONOMIC GEOLOGY GEOCHEMICAL RECONNAISSANCE OF THE ...
... anomalous concentra- tions of metals ---- 10 4. Magnitude of geochemical anomalies rated as strong , mod- erate , or weak , for each element and each tract .. 11 111 CONTRIBUTIONS TO ECONOMIC GEOLOGY GEOCHEMICAL RECONNAISSANCE OF THE ...
Page P-1
... anomalies are closely associated with gold and silver anomalies . The other ... stronger anomalies are in carbonate rocks near granitic igneous bodies and ... anomaly to establish an exploration target depends on sound interpretation of ...
... anomalies are closely associated with gold and silver anomalies . The other ... stronger anomalies are in carbonate rocks near granitic igneous bodies and ... anomaly to establish an exploration target depends on sound interpretation of ...
Page P-8
... anomalies in all elements . In order to describe these variations in a geographic and geologic con- text , the map ... anomalies for each element in each of the tracts has been evaluated empirically as strong , moderate , TABLE 2 ...
... anomalies in all elements . In order to describe these variations in a geographic and geologic con- text , the map ... anomalies for each element in each of the tracts has been evaluated empirically as strong , moderate , TABLE 2 ...
Page P-11
... anomalies rated as strong ( S ) , moderate ( M ) , or weak ( W ) , for each element and each tract [ .. , no data ] Carbonate facies ( lower plate ) Siliceous facies ( upper plate ) Granitic igneous rocks Basaltic andesite Lower Mill ...
... anomalies rated as strong ( S ) , moderate ( M ) , or weak ( W ) , for each element and each tract [ .. , no data ] Carbonate facies ( lower plate ) Siliceous facies ( upper plate ) Granitic igneous rocks Basaltic andesite Lower Mill ...
Page P-12
... anomalies , and gold , silver , arsenic , and molybdenum are weakly anomalous ( table 4 ) . Most of the sample localities with ... Strong anomalies in molybdenum and tellurium and moderate anomalies in P12 CONTRIBUTIONS TO ECONOMIC GEOLOGY.
... anomalies , and gold , silver , arsenic , and molybdenum are weakly anomalous ( table 4 ) . Most of the sample localities with ... Strong anomalies in molybdenum and tellurium and moderate anomalies in P12 CONTRIBUTIONS TO ECONOMIC GEOLOGY.
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Common terms and phrases
alaskite alluvium antimony antimony anomalies arsenic basaltic andesite flows carbonate rocks chert colluvium Cortez fault Cortez gold Cortez quadrangle Cortez silver deposits Elliott Eureka Counties exploration target GEOLOGICAL SURVEY gold and silver Granitic igneous rocks granodiorite Harold Masursky igneous bodies Individual high values jasperoid localities showing high localities with high lower Mill Canyon lower plate carbonate map area Marranzino mercury mercury and arsenic Mill Canyon stock Mill Canyon tract mineralized zone moderately anomalous table molybdenum molybdenum are weakly Mount Tenabo Mountains thrust fault Nevada nine elements northwest-trending Oligocene Ordovician Paleozoic plate siliceous facies plate siliceous rocks porphyry quartz monzonite rhyolite Roberts Mountains thrust sample localities showing sedimentary rocks selected metals southern Cortez Mountains Southwest basaltic Stoiser strong anomalies tellurium Tertiary gravel tract contains tract pl U.S. Geol upper Fourmile Canyon upper Mill Canyon upper plate siliceous Uteana Vinini Formation Willow Creek zinc zone in Mill