 | | Journal (article/letter/editorial) | | 12167 Thematic Article Potential for Porphyry Copper Deposits in Northern hoku (or the Exploration...Potential for Base and Precious To Metal Deposits in Japan 2020) Antonio ARRIBAS and Toshio MIZUTA Faculty...University, Akita, Japan Abstract There are no known porphyry copper deposits in Japan. Attempts were made...magmatic–hydrothermal systems. Is it possible that porphyry copper systems are incompatible with the volcanoplutonic...the established model for the genesis of porphyry copper systems not completely correct, or is it that the |  | | Journal (article/letter/editorial) | | Science,Universityof Tokyo,Bunkyo-ku,Hongo,Tokyo113, Japan Abstract The assemblage and mode of occurrenceof...suggestthat the fco• for vein-type mineralizationin Japan is controlled by alteration mineralscommonlyoccurringin...hostrocksfor Neogenevein-typemineralizationdistrictsin Japan,it was found that many Cu-Pb-Zn-richvein-type depositsoccurin...similaritiesbetween epithermal type deposits in Japan have been carried out in vein-type depositsand active...(24) (25) (26) (27) (28) (29) (30) (31) (32) (33) Mine name Motokura Hokurhu Sanru Numanoue Kohnomai Kitami |  | | Report (issue) | | AND GRADE-TONNAGE INFORMATION ON VOLCANIC-HOSTED COPPER-ZINC-LEAD MASSIVE SULFIDE DEPOSITS By D.L. Mosier...arbitrary 500-m limit may combine deposits within a district (e.g. Quemont-Horne), or subdivide a large deposit...this data. CONTAINED METAL (CU, ZN, PB, AG, AU) Copper (Cu), zinc (Zn), and lead (Pb) are expressed in...deposits in Table 1 contain reported copper. In addition to copper, many deposits contain zinc, lead, silver...(Shiratsuchi) Tsuchihata (Uenono-Okinazawa) Tsuchihata (Washinosu-Akakura) Whalesback-Little Deer Yokota (Motoyama-Hamago) |  | | Report (issue) | | 3 Porphyry copper molybdenum rich 9 Porphyry copper gold rich 15 Porphyry copper 21 Molybdenum...fluorine 31 Iron skarn 34 Copper skarn 38 Copper skarn--porphyry copper 43 Tungsten skarn 49 Cyprus...Grade-tonnage models for skarn copper associated with porphyry copper, laterite nickel of the oxide type...type, and general porphyry copper do not yet have associated descriptive models. Although both the descriptive...logarithmic transformation was used for tonnage and copper grade, whereas a square root transformation was |  | | Book | | G - EOLOGICAL OF THE MINERI IN JAPAN AND Hideki Imai t z0 ::a:: 0 0 � I ( CRYSTALS NOT PISTOLS...STUDIES OF THE MINERAL DEPOSITS'( GEOLOGICAL lN JAPAN AND EAST ASIA ,,.. I -I �1n .. o� ;.,. "W...GEOLOGICAL STUDIES OF THE MINERAL DEP OSITS IN JAPAN AND EAST ASIA Hideki Imai UNIVERSITY OF TOKYO PRESS...TOKYO PRESS, 1978 UTP 3044-687 59-5 I 49 Printed in Japan All rights reserved. No part of this publication...During these 40 years, I studied the ore deposits in Japan and East Asia from the geological and mineralogical |  | Hodges, C.A., Cox, D.P., Singer, D.A., Case, J.E., Berger, B.R., Albers, J.P. (1984) U.S. Geological Survey-INGEOMINAS mineral resource assessment of Colombia. Open-File Report Vol. 1984 (84-345) US Geological Survey doi:10.3133/ofr84345 | Report (issue) | | and B) 48 Podiform chromite (1.1) 7 Porphyry copper molybdenum-rich; gold-rich (2.1, 2.2) 9 Molybdenum...climax type; low fluorine type (2.3, 2.4) 12 Copper skarn (2.6) 14 Lead-zinc skarn (2.7) 14 Massive...rocks (3.2) 18 Redbed-greenbed copper (4.1) 20 Volcanic native copper (4.2) 22 Sandstone (sedimentary)...Porphyry copper, Mo-rich; Au-rich 8 4. Molybdenum porphyry-Climax type, low F 11 5. Copper skarn,...rocks - 17 8. Redbed-greenbed copper 19 9. Volcanic native copper 21 10. Sandstone (sedimentary) |  | | Report (volume) | | grades of synorogenic-synvolcanic Ni-Cu deposits 30 Copper grades of synorogenic-synvolcanic Ni-Cu deposits...deposits 79 Tonnages of porphyry Cu deposits 80 Copper grades of porphyry Cu deposits 80 By-product grades...Tonnages of porphyry Cu-skarn-related deposits 84 Copper grades of porphyry Cu-skarn-related deposits 84...skarn deposit 87 Tonnages of Cu skarn deposits 88 Copper grades of Cu skarn deposits 88 Precious metal grades...grades of polymetallic replacement deposits 103 Copper grades of polymetallic replacement deposits 103 |
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