 | | Journal (article/letter/editorial) | | Lattanzi Epithermal precious metal deposits of Italy±an overview Received: 13 October 1998 / Accepted:...recently been added to the metallogenic view of Italy. It was only in the late 1980s that two districts...districts were recognized, in Sardinia and southern Tuscany, previously long known for a large variety of other...The alteration assemblage includes adularia and illite, i.e. is typical of low-sul®dation deposits. Fluid...salinities of less than 4% wt. NaCl equivalent. In southern Tuscany, a number of carbonate-hosted (``Carlin |  | Petersen, S., Herzig, P. M., Hannington, M. D., Jonasson, I. R., Arribas, A. (2002) Submarine Gold Mineralization Near Lihir Island, New Ireland Fore-Arc, Papua New Guinea. Economic Geology, 97 (8) 1795-1813 doi:10.2113/gsecongeo.97.8.1795 | Journal (article/letter/editorial) | | Mineralization Near Lihir Island, New Ireland Fore-Arc, Papua New Guinea SVEN PETERSEN, PETER M. HERZIG...mineralization have been recovered from the top of Conical seamount, a shallow (1,050-m water depth) submarine volcano...Conical seamount contain the highest concentration of gold yet reported from the modern sea floor (max...Zoned alteration adjacent to the veins consists of illite, smectite, amorphous silica, K feldspar, secondary...and trace carbonate. The association of gold with illite, smectite, amorphous silica, and K feldspar indicates |  | | Book (volume) | | Micropaléontologique and Laboratoire Florence, Italy Florence, Italy Centro P. F. Burollet Compagnie Paris...University Service Mineralogia, Petrografia Italy G. Mascle Département de Géologie Structurale ...The Mediterranean Coast of Spain and the Alboran Sea Rios I. Introduction: The Mediterranean Coast of...Sedimentation .. . ponte a) tae a eae C. The Balearic Sea and Gull of Velencia Ds The Alboran SeaandJslands...tI GWRE Ghar Re eas: 1 Bele as The Ligurian Sea and the Adjacent Areas Michel Moullade I. Introduction |  | Sahlström, Fredrik, Chang, Zhaoshan, Arribas, Antonio, Dirks, Paul, Johnson, Craig A., Huizenga, Jan Marten, Corral, Isaac (2020) Reconstruction of an Early Permian, Sublacustrine Magmatic-Hydrothermal System: Mount Carlton Epithermal Au-Ag-Cu Deposit, Northeastern Australia. Economic Geology, 115 (1) 129-152 doi:10.5382/econgeo.4696 | Journal (article/letter/editorial) | | mineralization in shallow-submarine volcanic arc and back-arc settings. The lacustrine paleosurface features...tectonic setting within a volcanic arc (in this case, a back-arc rift); intermediate-composition, calc-alkaline...of back-arc extension within the lower Paleozoic metamorphic and sedimentary basement. Back-arc rifting...for economic mineralization in the region. Back-arc rifting was followed in the middle Permian by thermal...of a foreland basin sequence on top of the back-arc basin (Donchak et al., 2013). Infilling by terrestrial |  | | Journal (article/letter/editorial) | | systems in the East African rifts and those of the Red Sea. Geothermal springs in both modern and ancient Earth...surface, whether on land or in bodies of water (lakes, sea floors) constitute what is commonly called hot or...B, passive margin; C, backarc rifting; D, island arc; E, hot-spot volcanism; F, spreading centre; G, transform...(Figure 2). Hydrothermal and biogenic activity on the sea floor produces sulfates, sulfides and oxides. The mechanism...move through a fracture system to discharge on the sea floor as hot springs (black and white smokers). The |  | | Book | | ........ .45 3.2.2 Neves-Corvo, Castro Verde, Southern Portugal.. ............................... 49...Volcanic-Hosted Massive Sulfide Deposits of the Southern Urals, Russia ............................................................ 69 3.2.10.1 Southern Lau Back-Arc Basin, Southwest-Pacific .................102 3.5.5 Prasolov, Kunashir Island, Kuril Island Arc, Russia ........................ l 03 3.5.6 Mutnovsky...1 Kudryavyi Volcano, Iturup Island, Kuril Island Arc, Russia ........... 106 3.6.2 Merapi Volcano, Central |  | | Journal (article/letter/editorial) | | Portugal e-mail: jrelvas@fc.ul.pt J. B. Gemmell ARC Centre for Excellence in Ore Deposits, University...the subducting slab. This contrasts with the back-arc setting of “normal” VHMS deposits in which relatively...Doyon-Bousquet-La Ronde) Okinawa Trough Conical Seamount 0° Manus Basin ( DESMOS, PACMANUS) Lau Basin...processes in modern VHMS deposits in the Manus back-arc basin area. They documented a close association of...systems. He observed that venting fluids from back-arc systems generally have higher total gas concentrations |  | | Book | | Pirajno commenced his academic studies in his native Italy where he obtained a Doctorate in Geological Sciences...his career, which has included work in Europe, southern Africa, South East Asia, New Zealand, the southwest... . . . . . . . . . . . . . 1.2 Origin of Water; Sea and Surface Waters . . . . . . . . . . . . . . .... . . . 3.2.1 Convergent Plate Boundaries; Arc and Back-Arc Settings, Collision Tectonics,. . . . . .... . . . . . . . . . . . . . . . . . 5.4.5 Salton Sea . . . . . . . . . . . . . . . . . . . . . . . . |  | | Book | | majority of the metal deposits that are formed in arc systems. My position on this matter has been long...1 Contents XIII Chapter 3 Metal Deposits of Arc-Related Rifts 3.1 3.2 The Thupo Volcanic Zone,...134 139 142 143 Chapter 4 Additional Aspects of Arc-Related Metallogeny 4.1 Metal Deposits Related...Deposits of a Complexly Evolving Continental Margin Arc-Rift Transform System: Western USA ....................... . Overview of Arc-Related Metallogeny ...... 195 198 Relation of Arc Metallogeny to Subduction |  | | Report (issue) | | s and models for ore formation. The e processes arc regardeda criticalfor the generationof economic mineralization...contribution have also been invoked for deposits that arc more di tal from magmaticcenters. This shortcourse...volatile SIIUl'llion. 1'bele equationsand concepts arc tmeedapinst rocks of the Iron Mask.batholith which...extent of magmatic CUrves shownin Figures2a and2b arc for crystallization,versusXm, H20 contentof the magma...meltingtemperaturesor min rats in the magma that arc far from equilibrium(Scarfcet al. 1980: Donaldson1985; |
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