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Mineralizationof Gold and PorphyryCopper Depositsin the New GuineaHighlands 1•. W. PAGE AND IAN McDoUGALL Abstract...porphyry coppermineralizationin the Highlands of Papua New Guinea. The igneousrocks associated with thesedepositsare...gold-bearingporphyriesand related rocks in the Morobe Goldfields enablesa 3.1 to 3.8 m.y. age interval to be...porphyry copper deposit so far discovered in Papua New Guinea occursin the west at Mount Fubilan, near the...relativelyyouthfultectonicsettingof the mineral depositsin the New Guinea region was emphasizedby Thompsonand Fisher (1967) |
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subject. Robbins' book is therefore a welcome and calcite, discussionsof activators are of considerablelength...section of fluorescenceamong gemstones, district of New Jersey. A large chapter then follows which natural...MINERALS. By Manuel Robbins, Van Nostrand Reinhold, New York, 1983.Hardcover,xiii, 289pages,64 color photographs...groups and space groups. As quoted from the Preface: "New features of the description of each space group,...follows: (l) Addition of Patterson symmetry; (2) New types of diagrams for triclinic, monoclinic and orthorhombic |
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GOLD, WITH SPECIAL REFERENCE TO THE, MOROBE GOLDFIELD, NEW GUINEA. N.H. FISHER3 CONTENTS. Part I. PAGE........................................... 456 Morobe goldfield ...................................................... Resum• of gold finenesson the Morobe field .......................... 475 Other districts............................. Resum• lodes of the Morobe goldfield ................................ 478...Morobegoldfield of the Mandated Territory of New Guinea is the manner in which the finenessof the gold |
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occurred due to a locally higher pH buffered by calcite dissolution. The supergene gold grains generally...resulting from continued silver removal provides a new interface in the goldsilver alloy for a repetition...a goldbearing shear zone in the Morobe Goldfields, Papua New Guinea (Webster and Mann, 1984). Here, though...as the Dondo Mobi goldfields, Gabon (Lecomte and Colin, 1989) or Mborguene goldfields in Cameroun (Freyssinet...studentship at Southampton University. Ashanti Goldfields Corporation (Ghana) Limited are thanked for providing |
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...................... 1507 VIII. WEST PAPUA (WEST NEW GUINEA)............................................................ 1516 VIII.1. New Guinea General and West Papua ..................................................... 2127 IX.10. SW Pacific (incl. New Caledonia)............................................................. 2140 IX.11. Papua New Guinea (East New Guinea main island) .................................................... 2210 IX.12. Papua New Guinea (Bismarck Sea, Solomon Sea, Woodlark Basin) |
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DUKE RSIS Be Gano, ONL VIE Lis fo: Pee Thailand—A New Focus of Asian Gold Mining Investment D.W. Davis...the classic studies in the Taupo volcanic zone of New Zealand. In the high grade metamorphic to igneous...There is a great potential for the discovery of new types of gold deposits and in particular, gold in...F. Hoffman, 1987). THE TAUPO VOLCANIC ZONE, NEW ZEALAND I think that the most elegant and detailed...hydrothermal, geothermal, region of the North Island of New Zealand. The occurrence of wide spread hot spring |
Morobe goldfields, Morobe Province, Papua New Guinea