Search Results - "HERZIG, PETER M."
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Hydrous metasomatism of oceanic sub-arc mantle, Lihir, Papua New Guinea: petrology and geochemistry of fluid-metasomatised mantle wedge xenoliths
Published in Earth and planetary science letters (30-05-2001)“…Ultramafic, mafic and sedimentary xenoliths have been recovered from a recently erupted, shoshonitic submarine cinder cone (Tubaf and Edison volcanoes) from…”
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The transition from porphyry- to epithermal-style gold mineralization at Ladolam, Lihir Island, Papua New Guinea: a reconnaissance study
Published in Mineralium deposita (01-02-2002)“…The exceptionally large gold resource at Ladolam (>1,300 metric tons of gold), Lihir Island, resulted from the transition of an early-stage, low-grade porphyry…”
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Potassic igneous rocks from the vicinity of epithermal gold mineralization, Lihir Island, Papua New Guinea
Published in Lithos (01-06-2001)“…Many world-class porphyry copper–gold and epithermal gold deposits worldwide are hosted by volatile-rich and oxidized alkaline rocks. This study investigates…”
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Submarine gold mineralization near Lihir Island, New Ireland fore-arc, Papua New Guinea
Published in Economic geology and the bulletin of the Society of Economic Geologists (01-12-2002)“…Gold-rich siliceous veins with disseminated polymetallic sulphides and pyritic stockwork mineralization have been recovered from the top of Conical seamount, ∼…”
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Hydrothermal precipitates associated with bimodal volcanism in the Central Bransfield Strait, Antarctica
Published in Mineralium deposita (01-05-2004)“…Polymetallic sulfide-sulfate mineralization enriched in Pb-Ag-As-Sb-Hg occurs in the Bransfield Strait, a late Tertiary-Quaternary marginal basin close to the…”
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Geology and volcanic facies architecture of the Lower Ordovician Waterloo massive sulfide deposit, Australia
Published in Economic geology and the bulletin of the Society of Economic Geologists (01-01-2006)“…The Waterloo massive sulfide deposit occurs in the Cambro-Ordovician Seventy Mile Range Group in the Charters Towers district in northern Queensland, one of…”
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Petrology and geochemistry of the shoshonite-hosted Skouries porphyry Cu-Au deposit, Chalkidiki, Greece
Published in Mineralium deposita (01-02-2002)“…The Skouries porphyry Cu-Au deposit, containing an indicated reserve of 206 Mt at 0.54% Cu and 0.80 g/t Au, is hosted by at least four hypabyssal…”
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Gold-rich polymetallic sulfides from the Lau back arc and implications for the geochemistry of gold in sea-floor hydrothermal systems of the Southwest Pacific
Published in Economic geology and the bulletin of the Society of Economic Geologists (01-12-1993)“…The Au contents range up to 28.7 ppm (1oz/ton) and average 3.1 ppm. This is among the highest reported for the modern ocean floor. The geology, analytical…”
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Quantitative phase- analysis by the Rietveld method using X-ray powder-diffraction data; application to the study of alteration halos associated with volcanic-rock-hosted massive sulfide deposits
Published in Canadian mineralogist (01-12-2001)“…It was found that the effects of micro-absorption can be sufficiently minimized by fine grinding of the samples (< 20 µm), the use of Co-Kα radiation and…”
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Economic potential of sea–floor massive sulphide deposits: ancient and modern
Published in Philosophical transactions of the Royal Society of London. Series A: Mathematical, physical, and engineering sciences (15-04-1999)“…Land–based massive sulphide deposits are of major importance to world mining and world commerce. Major products are base metals (copper, zinc, lead, tin),…”
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Sulfur isotope evidence for magmatic contributions to submarine and subaerial gold mineralization; Conical Seamount and the Ladolam gold deposit, Papua New Guinea
Published in Economic geology and the bulletin of the Society of Economic Geologists (01-12-2004)“…Conical seamount is a submarine alkali basalt volcano situated 10 km S of Lihir Island in the Tabar-Feni island chain, Papua New Guinea. Polymetallic…”
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Primary clinopyroxene spherulites in basaltic lavas from the Pacific–Antarctic Ridge
Published in Journal of volcanology and geothermal research (15-02-2004)“…Fresh glassy basaltic andesite samples recovered from the northern part of the Pacific–Antarctic Ridge contain abundant spherulites consisting of arrays of…”
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Metallogenesis in back-arc environments; the Lau Basin example
Published in Economic geology and the bulletin of the Society of Economic Geologists (01-12-1993)“…Three major hydrothermal fields occur with the greatest differentiation of volcanic rocks. The geology is reviewed and the geochemistry is discussed. The…”
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Gold-rich sea-floor gossans in the Troodos Ophiolite and on the Mid-Atlantic Ridge
Published in Economic geology and the bulletin of the Society of Economic Geologists (01-12-1991)Get full text
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Truncated fractal frequency distribution of element abundance data: A dynamic model for the metasomatic enrichment of base and precious metals
Published in Earth and planetary science letters (15-04-2005)“…The frequency distributions of elements in rocks and ore deposits do not conform to a universal scaling law, but vary in dependence of the mechanism of element…”
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Metasomatic Mantle Xenoliths from the Bismarck Microplate (Papua New Guinea)—Thermal Evolution, Geochemistry and Extent of Slab-induced Metasomatism
Published in Journal of petrology (01-02-2002)“…A suite of ultramafic mantle xenoliths from the TUBAF and EDISON seamounts in the Bismarck Archipelago NE of Papua New Guinea was sampled by video-guided grab…”
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Shallow Drilling of Seafloor Hydrothermal Systems Using the BGS Rockdrill: Conical Seamount (New Ireland Fore-Arc) and PACMANUS (Eastern Manus Basin), Papua New Guinea
Published in Marine georesources & geotechnology (01-07-2005)“…From September to October 2002, shallow drilling, using the submersible (5 m) Rockdrill of the British Geological Survey and the German R/V Sonne revealed…”
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Analysis of fluid inclusions in seafloor hydrothermal precipitates: testing and application of an integrated GC/IC technique
Published in Chemical geology (30-07-2001)“…The principal research objective was to test an integrated gas (GC) and ion chromatographic (IC) technique for analysis of trapped fluids in seafloor…”
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Heiße Quellen am Meeresboden: Erzfabriken in der Tiefsee
Published in Chemie in unserer Zeit (01-10-2003)“…Mit der Entdeckung der ersten Metallsulfidablagerungen und 350 °C heißen Black Smoker im Bereich des Ostpazifischen Rückens im Jahre 1979, begann die…”
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