 | Yang, Baoju, Liu, Jihua, Shi, Xuefa, Zhang, Hui, Wang, Xiaojing, Wu, Yonghua, Fang, Xisheng (2020) Mineralogy and sulfur isotope characteristics of metalliferous sediments from the Tangyin hydrothermal field in the southern Okinawa Trough. Ore Geology Reviews, 120. 103464 doi:10.1016/j.oregeorev.2020.103464 | Journal (article/letter/editorial) | | 15 deepsea hydrothermal fields reported above, a new hydrothermal field named âTangyinâ was discovered...such as the Lau Basin, DESMOS, and Brothers caldera on the Kermadec arc, there is significant evidence...sediments derived from surrounding continents and islands, together with volcaniclastic sediments associated...barite, and some quartz, chlorite, and illite/muscovite. Sample TVG11-2 (Fig. 3B) mainly contains pyrite...that Se concentration in pyrite can be used as a new geothermometer to estimate pyrite forming temperature |  | Voudouris, Panagiotis, Kati, Marianna, Magganas, Andreas, Keith, Manuel, Valsami-Jones, Eugenia, Haase, Karsten, Klemd, Reiner, Nestmeyer, Mark (2020) Arsenian Pyrite and Cinnabar from Active Submarine Nearshore Vents, Paleochori Bay, Milos Island, Greece. Minerals, 11 (1) 14 doi:10.3390/min11010014 | Journal (article/letter/editorial) | | Lau Basin [12,13], the North Fiji Basin [14], the New Hebrides backâarc [15], and the Marthe Lau Basin...Basin [12,13], the North Fiji Basin [14], the New Hebrides back-arc [15], and the iana Trough [16],[16], as...Examplesinclude include TongaâKermadec intraâoceanic arc [9,20â23] 200 and thethe Tonga-Kermadec intra-oceanic arc...Kolumbo volcano in theinHellenic continental volcanic arc [24]. hydrothermal and the Kolumbo volcano the...Concepcion, Mexico [32â35]; Ambitle Island,New Papua New [29â31]; Guinea [29â31]; Punta and Bahia Concepcion |  | | Journal (article/letter/editorial) | | hydrothermal system in the caldera of a submarine volcano in an island arc. The model is simulated in a number...selected based on data on fumaroles at Kudryavyi volcano [3] with a correction for the degassing pressure...Kings TJ N. Fiii West Mata Volcano O Volcano 1 Vai Lili Hine Hina Monowai Brothers 30° Calypso 30° 0° 30°...Americanâ New Zealand expeditions that worked at submarine volcanoes in the Mariana and TongaKermadec island...and 13° N Seamount in EPR) and Loihi subma rine volcano. As was demonstrated in [12 and others], the tactics |  | | Journal (article/letter/editorial) | | Conical Seamount and the Ladolam Gold Deposit, Papua New Guinea J. BRUCE GEMMELL,â ROBINA SHARPE, Centre for...basalt volcano situated 10 km south of Lihir Island in the Tabar-Feni island chain, Papua New Guinea...and precious metal precipitating event (stage 2). New sulfur isotope data allow a reinterpretation of this...subaerial Ladolam gold deposit on Lihir Island, Papua New Guinea. Petersen et al. (2002) published initial...report new laser-ablation and conventional sulfur isotope data for Conical seamount, as well as new conventional |  | | Journal (article/letter/editorial) | | gold-rich mineralization at Brothers Volcano, Kermadec Arc, New ZealandâCornel E. J. de Ronde, Gary J...Sanjoy Sanyal, and D. Mukhopadhyay Zircon U-Pb and muscovite 40Ar/39Ar geochronology of the goldbearing Tianger |  | Schofield, Marina D., Gibson, Harold.L., Lafrance, Bruno, Poulsen, K. Howard, Marsh, Jeffrey, Hamilton, Michael A., JĂžrgensen, Taus R.C. (2021) Recognizing subsurface breccias in Archean terranes: Implications for district scale metallogeny. Precambrian Research, 361. 106264pp. doi:10.1016/j.precamres.2021.106264 | Journal (article/letter/editorial) | | breccia formed on the seafloor. This study presents new data indicating that the Joliet Breccia is a subsurface...subsurface magmatic-hydrothermal emplacement mechanism. A new TIMS U-Pb zircon age of 2698.0 ± 0.9 Ma (2Ï) for...arcs. 1. Introduction Breccias are common to volcano-plutonic systems, and subsurface breccias are a...Pascua-Lama, Chile-Argentina; La Coipa, Chile; Wau, Papua New Guinea), making them preferred exploration targets...were not considered. This study presents results of new detailed mapping, petrography, geochemistry and geochronology |  | Seewald, Jeffrey S., Reeves, Eoghan P., Bach, Wolfgang, Saccocia, Peter J., Craddock, Paul R., Walsh, Emily, Shanks, Wayne C., Sylva, Sean P., Pichler, Thomas, Rosner, Martin (2019) Geochemistry of hot-springs at the SuSu Knolls hydrothermal field, Eastern Manus Basin: Advanced argillic alteration and vent fluid acidity. Geochimica et Cosmochimica Acta, 255. 25-48 doi:10.1016/j.gca.2019.03.034 | Journal (article/letter/editorial) | | environment of the Manus Basin in the Bismarck Sea, Papua New Guinea. In 2006, hydrothermal fluids were collected...environment of the Manus Basin in the Bismarck Sea, Papua New Guinea (Fig. 2). Hydrothermal activity at SuSu Knolls...inactive Manus Trench and to the south by the active New Britain Trench (Taylor, 1979a; Taylor et al., 1994;...characteristics that resemble subaerial volcanoes of the New Britain Arc, indicating strong arc affinities (Sinton...Basin, and arc environments such as Brothers Volcano on the Kermadec Arc (Fouquet et al., 1993; Takai et |  | | Journal (article/letter/editorial) | | Exploration and Mining, P.O. Box 136, North Ryde, New South Wales 1670, Australia Abstract Hydrothermal...vents in the eastern Manus back-arc basin, Papua New Guinea, are among the most gold rich yet discovered... Izu-Ogasawara, Iizasa et al., 1999; southern Kermadec, de Ronde et al., 1997). Published analyses of...Iizasa et al. (1997, 1999) Southern Kermadec arc Brothers volcano 2.0 Dacite-rhyolite Basalt 4.72... (1993), Herzig et al. (1993) Rumble II West volcano Manus basin PACMANUS Vienna Woods Susu Knolls |  | Conte, Aida Maria, Di Bella, Letizia, Ingrassia, Michela, Perinelli, Cristina, Martorelli, Eleonora (2020) Alteration and Mineralization Products of the Zannone Giant Pockmark (Zannone Hydrothermal Field, Central Tyrrhenian Sea) Minerals, 10 (7) 581 doi:10.3390/min10070581 | Journal (article/letter/editorial) | | (central Tyrrhenian Sea), where three main volcanic islands Palmarola, high, the Italian peninsula (central...mineralogy of alteration (i.e., abundance of muscovite, K feldspar, or barite for Ba). Among ZGP clasts...mineralogy of alteration (i.e., abundance of muscovite, K feldspar, or barite for Ba). Among ZGP clasts...ZGP-Rhyolite Clasts and Rhyolites of Western Pontine Islands 4.1. Relationships Between ZGP-Rhyolite Clasts...Clasts and Rhyolites of Western Pontine Islands The minero-petrographic observations and geochemical features |  | TorrĂł, L., Proenza, J.A., Melgarejo, J.C., Alfonso, P., FarrĂ© de Pablo, J., Colomer, J.M., GarcĂa-Casco, A., Gubern, A., Gallardo, E., Cazañas, X., ChĂĄvez, C., Del Carpio, R., LeĂłn, P., Nelson, C.E., Lewis, J.F. (2016) Mineralogy, geochemistry and sulfur isotope characterization of Cerro de MaimĂłn (Dominican Republic), San Fernando and Antonio (Cuba) lower Cretaceous VMS deposits: Formation during subduction initiation of the proto-Caribbean lithosphere within a fore-arc. Ore Geology Reviews, 72. 794-817 doi:10.1016/j.oregeorev.2015.09.017 | Journal (article/letter/editorial) | | deposits in the Greater Antilles. On the basis of IP new lithogeochemical data, basalts of the MaimĂłn Formation...Formations, here revised D and refined on the basis of new whole rock geochemical analyses, represents an exceptional...of the Caribbean Island Arc The geology of the islands of Hispaniola and Cuba resulted largely from Cretaceous...include: The Water Island Formation in the Virgin Islands, pre-Robles Formation in eastern Puerto Rico, the...Mabujina Amphibolite Complex and the Cretaceous volcano-sedimentary arc at 81-89 Ma (Rojas-Agramonte et |  | | Journal (article/letter/editorial) | | Andesites and basalts + + CHESTER + TULLAH Western volcano+ sedimentary sequences Mt Black + + + Central Volcanic...200 to 2,210 nm, comparable to normal potassic muscovite. Discrete zones near the center of the system...near the upper-right corner at the position of muscovite and K-feldspar at high values of AI and AAAI....30 rhyolitic 20 10 0 paragonite albite 0 muscovite K-feldspar Na-mica B 90 80 70 least altered...100(MgO+K2O) / (MgO+K 2O+CaO+Na 2O) Alteration Index muscovite K-feldspar quartz, pyrophyllite, kaolinite 100 |  | Mercier-Langevin, P., Dube, B., Hannington, M. D., Davis, D. W., Lafrance, B., Gosselin, G. (2007) The LaRonde Penna Au-Rich Volcanogenic Massive Sulfide Deposit, Abitibi Greenstone Belt, Quebec: Part I. Geology and Geochronology. Economic Geology, 102 (4) 585-609 doi:10.2113/gsecongeo.102.4.585 | Journal (article/letter/editorial) | | quartz, kyanite, andalusite, staurolite, and muscovite schist, referred to as the aluminous zone (see...al., 1982; Lafrance et al., 2003) or a shield volcano (Stone, 1990). Bousquet Formation, lower member...Main alteration facies (Aluminous zone) Quartz-muscovite Quartz-garnet-biotitemuscovite (>10% vol. garnet)...(>10% vol. garnet) 5.1b-(d) 5.1b-(b) Quartz-muscovite 5.1b-(c) Zone 7 horizon Lower member 4.4 (e...center could have been part of a larger composite volcano and/or caldera complex, as documented in many active |  | | Journal (article/letter/editorial) | | this work, we present the preliminary results of a new geochemical exploration campaign conducted in the...non-sulphide zinc deposits. Ore Geol Rev. 33:134â151. New paragenetic, geochemical, and geochronological constraints...al. 1989). By shedding new light on the ore paragenesis, and developing a new geochemical and geochronological...with decreasing ïŹuid to rock ratio due to boiling. New in-situ and bulk ÎŽ34S data (galena: â11.6 to â6.7â°...weathered parent rock (Combes 1990). Here, we present new data on bulk rock geochemistry of Provence (Les Baux |  | Dube, B., Mercier-Langevin, P., Kjarsgaard, I., Hannington, M., Becu, V., Cote, J., Moorhead, J., Legault, M., Bedard, N. (2014) The Bousquet 2-Dumagami World-Class Archean Au-Rich Volcanogenic Massive Sulfide Deposit, Abitibi, Quebec: Metamorphosed Submarine Advanced Argillic Alteration Footprint and Genesis. Economic Geology, 109 (1) 121-166 doi:10.2113/econgeo.109.1.121 | Journal (article/letter/editorial) | | the ore: (1) quartz-muscovite ± Mn-garnet ± biotite ± chlorite; (2) quartz-muscovite ± pyrite; (3) qua...quartz-muscovite-andalusite-pyrophyllite-pyrite with topaz and diaspore; and (4) massive quartz-pyrite....Fe2O3(total), MgO, and CaO are recorded in the quartz-muscovite ± Mngarnet ± biotite ± chlorite assemblage, whereas...CaO occur in the quartz muscovite ± pyrite assemblage. In the quartz-muscovite-andalusite-pyrophyllite-pyrite...Bousquet 2-Dumagami deposit taking into account new data from the Doyon-Bousquet-LaRonde mining camp |  | Volesky, John C., Leybourne, Matthew I., Stern, Robert J., Peter, Jan M., Layton-Matthews, Daniel, Rice, Sarah, Johnson, Peter R. (2017) Metavolcanic host rocks, mineralization, and gossans of the Shaib al Tair and Rabathan volcanogenic massive sulphide deposits of the Wadi Bidah Mineral District, Saudi Arabia. International Geology Review, 59 (16) 1975-2002 doi:10.1080/00206814.2017.1307789 | Journal (article/letter/editorial) | | quartzâepidoteâchlorite schists) and felsic (muscoviteâ chloriteâquartz schists). Samples associated...typically been destroyed by deformation. A quartzâmuscovite assemblage with minor chlorite and epidote dominates...typically have a strong foliation defined by muscovite. Chert samples are dominated by quartz with variable...variable iron oxide alteration and muscovite. The term âchertâ is a field description representing distal...mafic to felsic volcanic rocks from the modern Kermadec arc for reference (Wysoczanski, unpublished compilation) |  | | Book | | Doctorate in Geological Sciences from the Vesuvius Volcano Observatory of Federico II University in Naples...appointments at the Astrobiology Centre, University of New South Wales, Sydney, and the China University of...in Europe, southern Africa, South East Asia, New Zealand, the southwest Pacific, China, Greenland and...2 Ladolam Epithermal System, Lihir Island, Papua New Guinea . . . . . . . . . . . . . . . . . . . . ....3.3 Hauraki Goldfield, Coromandel Peninsula, New Zealand 5.3.4 The Epithermal Systems of the Biga Peninsula |  | | Journal (article/letter/editorial) | | and Scott, 1996, 2005). In this work we present a new thermodynamic and conceptual argument, suggesting...the PQ Group are dominated by quartz, phengitic muscovite and chlorite with plagioclase (oligoclaseâalbite)...model for sulfur-deficient ore fluids, we present a new data set for the composition of the proposed metal...geological constraints from the IPB provides important new constraints, compared with previously published arguments...composition. The presence of quartz, two feldspars and muscovite suggests that the aK+ and the pH of the fluids |  | | Journal (article/letter/editorial) | | dolomitic mudstone is better than that of mudstone. This new data has important information to revaluate the potential...Conference Abstracts 2010 A315 Nitrogen sources for new production in the NE Arabian Sea during winter Rethinking...Francis Xavier University, Nova Scotia, Canada New productivity measurements using the 15N tracer technique...as is also observed in satellite imagery. Higher new production and f-ratios have been found in late winter...of NO3- is maximum in early winter. In general, new production and f-ratios vary progressively during |  | Mederer, Johannes, Moritz, Robert, Chiaradia, Massimo, Spikings, Richard, Spangenberg, Jorge E., Selby, David (2019) Ore Formation During Jurassic Subduction of the Tethys Along the Eurasian Margin: Constraints from the Kapan District, Lesser Caucasus, Southern Armenia. Economic Geology, 114 (7) 1251-1284 doi:10.5382/econgeo.4640 | Journal (article/letter/editorial) | | Centralni West. 40Ar/39Ar dating of hydrothermal muscovite at Centralni West and of magmatic-hydrothermal...veins â mined since 1843 at â operation â (Ar/Ar muscovite) â brecciated lava, â and minor sphalerite, ...et al., 2014). In this contribution, we provide new constraints to discuss Orebody geometry ORE FORMATION...24° N Shahumyan 161.78±0.79 Ma hydrothermal muscovite s -M Met B u lt la d j fa Bar aba ault r -Kh...controversies for the Kapan district. We present new descriptions of the geologic setting and the hydrothermal |  | Pilote, Jean-Luc, Piercey, Stephen J., Brueckner, Stefanie M., Grant, David (2016) Resolving the Relative Timing of Au Enrichment in Volcanogenic Massive Sulfide Deposits Using Scanning Electron Microscopy-Mineral Liberation Analyzer: Empirical Evidence from the Ming Deposit, Newfoundland, Canada. Economic Geology, 111 (6) 1495-1508 doi:10.2113/econgeo.111.6.1495 | Journal (article/letter/editorial) | | galena, gud = gudmundite, mia = miargyrite, mus = muscovite, po = pyrrhotite, py = pyrite, qtz = quartz, sp...found as a gangue mineral, together with quartz, muscovite, and carbonate minerals in the 1807 massive sulfide...Skulski, T., van Staal, C., and Currie, M., 2009, New insights on the structural geology of the Pacquet...gold-rich mineralization at Brothers Volcano, Kermadec arc, New Zealand: Mineralium Deposita, v. 46,...precipitates from the eastern Manus basin, Papua New Guinea: Canadian Mineralogist, v. 39, p. 957â978 |  | | Journal (article/letter/editorial) | | similar to the current setting of the modern Tonga-Kermadec volcanic arc (De Ronde et al., 2005). The massive...biotite ± muscovite ± glaucophane ± schorl quartz, biotite, plagioclase (An45-60), magnetite, muscovite, sillimanite...chlorite ± sillimanite ± muscovite quartz, plagioclase, biotite, hornblende ± muscovite hornblende, cummingtonite...magmatic-hydrothermal system: Brothers volcano, southern Kermadec arc, New Zealand. Economic Geology 100, 1097â1133...deformational history of the eastern Namaqua Province: new evidence from Prieska Copper Mines. South African |  | Hayman, P. C., Hull, S. E., Cas, R. A. F., Summerhayes, E., Amelin, Y., Ivanic, T. J., Price, D. (2015) A new period of volcanogenic massive sulfide formation in the Yilgarn: a volcanological study of theca2.76 Ga Hollandaire VMS deposit, Yilgarn Craton, Western Australia. Australian Journal of Earth Sciences, 62 (2) 189-210 doi:10.1080/08120099.2015.1011399 | Journal (article/letter/editorial) | | http://dx.doi.org/10.1080/08120099.2015.1011399 A new period of volcanogenic massive sulfide formation...extract as much understanding as possible out of each new VMS discovery in the Yilgarn in order to characterise...Pidgeon & Hallberg 2000) were reassessed in light of new mapping and geochronological data by the Geological...of Van Kranendonk et al. (2013) because it uses new, previously unavailable data, especially geochronology...Nd ages, significant proportions Hollandaire: A new VMS deposit in the Yilgan 191 Figure 1 Location |  | | Book | | repeatedly improved the contents in a series of new revised editions. After Matthesâ death in 1999, one...continue this tradition and produced a series of new editions of the bookâthe ninth edition was published...years he continuously updated the content and added new chapters, in some cases with the help from other...growing public awareness of the need for discovering new mineral resources to maintain the high standards...criticism and important hints as well as providing new photographs and diagrams fort the English edition |  | | Journal (article/letter/editorial) | | larger (e.g. Kidd Creek, Ontario or Brunswick No. 12, New Brunswick) deposits require leaching of extremely...Diagram modified after Huston (1999) to include new data from Panorama (Drieberg 2003), Neves Corvo (Relvas...Island Chain, Papua New Guinea Conical Seamount is a submarine alkali basalt volcano situated 10 km south...Lihir Island in the TabarâFeni island chain, Papua New Guinea (Petersen et al. 2002). Polymetallic (ZnâPbâAgâAuâAsâSb)...precious metal precipitating event (stage II). However, new sulphur isotope data of Gemmell et al. (2004) suggested |  | | Journal (article/letter/editorial) | | Gondwana crust, on top of which early Palaeozoic volcano-sedimentary rocks were deposited, such as those...Laurussia and Gondwana was accommodated by establishing new subduction zones behind the collided blocks, with...subduction of thinned continental crust and its volcano-sedimentary cover (Kroner and Romer, 2010, 2013)...and eastern Erzgebirge (Fig. 1). Rocks of the volcano-sedimentary cover, which form a stack of nappes...lithostratigraphic sequence of their Ordovician to Silurian volcano-sedimentary protoliths (cf. Fig. 12 of Mingram |
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