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Journal articles on the topic 'Magmatic-hydrothermal system'

Author: Grafiati

Published: 10 March 2023

Last updated: 31 July 2025

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1

Mohammadi, Nadia, Christopher R. M. McFarlane, David R. Lentz, and Kathleen G. Thorne. "Timing of magmatic crystallization and Sn–W–Mo greisen vein formation within the Mount Douglas Granite, New Brunswick, Canada." Canadian Journal of Earth Sciences 57, no. 7 (2020): 814–39. http://dx.doi.org/10.1139/cjes-2019-0043.

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U–Pb geochronology was applied to a combination of magmatic and hydrothermal minerals to help constrain the timing of emplacement of three units in the Mount Douglas Granite (MDG) and reveal their association with a complex mineralized hydrothermal system containing endogranitic Sn–W–Mo–Zn–Bi–U-bearing greisen/sheeted veins within the pluton. Magmatic monazite and zircon U–Pb ages obtained by LA–ICP–MS overlap at 368 Ma, recording a Late Devonian crystallization age for the MDG. Although discrimination, outside analytical error, of sequential pulses of magmatism is beyond the resolution of LA–

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Eichelberger, John, Alexey Kiryukhin, Silvio Mollo, Noriyoshi Tsuchiya, and Marlène Villeneuve. "Exploring and Modeling the Magma–Hydrothermal Regime." Geosciences 10, no. 6 (2020): 234. http://dx.doi.org/10.3390/geosciences10060234.

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This special issue comprises 12 papers from authors in 10 countries with new insights on the close coupling between magma as an energy and fluid source with hydrothermal systems as a primary control of magmatic behavior. Data and interpretation are provided on the rise of magma through a hydrothermal system, the relative timing of magmatic and hydrothermal events, the temporal evolution of supercritical aqueous fluids associated with ore formation, the magmatic and meteoric contributions of water to the systems, the big picture for the highly active Krafla Caldera, Iceland, as well as the impl

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Fulignati, Paolo. "Hydrothermal fluid evolution in the ‘Botro ai Marmi’ quartz-monzonitic intrusion, Campiglia Marittima, Tuscany, Italy. Evidence from a fluid-inclusion investigation." Mineralogical Magazine 82, no. 5 (2018): 1169–85. http://dx.doi.org/10.1180/mgm.2018.116.

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ABSTRACTThe quartz-monzonitic intrusion of ‘Botro ai Marmi’ in Tuscany, Italy, can be considered to be a typical example of an intrusion-centred magmatic hydrothermal system. The evolution of hydrothermal fluids in the ‘Botro ai Marmi’ intrusion was investigated using fluid-inclusion analyses to provide suitable physico-chemical constraints on the fluids involved in the late- to post-magmatic hydrothermal activity that affected the intrusion, providing inferences on their origin and variations of temperature and pressure with time.This work demonstrates that the earliest fluids circulating in

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Cangelosi, Delia, Sam Broom-Fendley, David Banks, Daniel Morgan, and Bruce Yardley. "Light rare earth element redistribution during hydrothermal alteration at the Okorusu carbonatite complex, Namibia." Mineralogical Magazine 84, no. 1 (2019): 49–64. http://dx.doi.org/10.1180/mgm.2019.54.

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AbstractThe Cretaceous Okorusu carbonatite, Namibia, includes diopside-bearing and pegmatitic calcite carbonatites, both exhibiting hydrothermally altered mineral assemblages. In unaltered carbonatite, Sr, Ba and rare earth elements (REE) are hosted principally by calcite and fluorapatite. However, in hydrothermally altered carbonatites, small (<50 µm) parisite-(Ce) grains are the dominant REE host, while Ba and Sr are hosted in baryte, celestine, strontianite and witherite. Hydrothermal calcite has a much lower trace-element content than the original, magmatic calcite. Regardless of the lo

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Yu, Ming-Zhen, Xue-Gang Chen, Dieter Garbe-Schönberg, Ying Ye, and Chen-Tung Arthur Chen. "Volatile Chalcophile Elements in Native Sulfur from a Submarine Hydrothermal System at Kueishantao, Offshore NE Taiwan." Minerals 9, no. 4 (2019): 245. http://dx.doi.org/10.3390/min9040245.

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We analyzed sulfur isotopes, trace elements and chalcophile elements (Se, Te, As, Sb, and Hg) in the native sulfur matrix from the Kueishantao hydrothermal system and conducted a systematic micro-analytical investigation. The sulfur matrix lacked all measured metals (e.g., Fe, Cu) and rare earth elements (REEs) while being significantly enriched in Te, As, Se (750–1500 ppm), Sb (around 100 ppm) and some Hg. The δ34S data (0.2–2.4‰) suggest a magmatic source leached from igneous rocks and a small contribution of seawater sulfates to the sulfur in hydrothermal deposits. Correlations between Te,

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Launay, Gaëtan, Stanislas Sizaret, Philippe Lach, Jérémie Melleton, Eric Gloaguen, and Marc Poujol. "Genetic relationship between greisenization and Sn–W mineralization in vein and greisen deposits: Insights from the Panasqueira deposit (Portugal)." BSGF - Earth Sciences Bulletin 192 (2021): 2. http://dx.doi.org/10.1051/bsgf/2020046.

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The W–Sn Panasqueira ore deposit is a magmatic-hydrothermal system, which includes a high-grade quartz-vein type mineralization and a disseminated greisen-type mineralization occurring in the upper part of the Panasqueira two-mica granite. We investigated the genetic and chronological relationships between the greisenization of the Panasqueira granite and the formation of ore-bearing quartz veins by monitoring major and trace elements variations in quartz-white mica assemblages composing the two-mica granite, greisen and W–Sn-bearing quartz veins. The greisen is characterized by an overall dep

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Tajima, Yasuhisa, Setsuya Nakada, Fukashi Maeno, et al. "Shallow Magmatic Hydrothermal Eruption in April 2018 on Ebinokogen Ioyama Volcano in Kirishima Volcano Group, Kyushu, Japan." Geosciences 10, no. 5 (2020): 183. http://dx.doi.org/10.3390/geosciences10050183.

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The Kirishima Volcano Group is a volcanic field ideal for studying the mechanism of steam-driven eruptions because many eruptions of this type occurred in the historical era and geophysical observation networks have been installed in this volcano. We made regular geothermal observations to understand the hydrothermal activity in Ebinokogen Ioyama Volcano. Geothermal activity resumed around the Ioyama from December 2015. A steam blowout occurred in April 2017, and a hydrothermal eruption occurred in April 2018. Geothermal activity had gradually increased before these events, suggesting intrusio

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Stearns, Michael A., John M. Bartley, John R. Bowman, et al. "Simultaneous Magmatic and Hydrothermal Regimes in Alta–Little Cottonwood Stocks, Utah, USA, Recorded Using Multiphase U-Pb Petrochronology." Geosciences 10, no. 4 (2020): 129. http://dx.doi.org/10.3390/geosciences10040129.

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Magmatic and hydrothermal systems are intimately linked, significantly overlapping through time but persisting in different parts of a system. New preliminary U-Pb and trace element petrochronology from zircon and titanite demonstrate the protracted and episodic record of magmatic and hydrothermal processes in the Alta stock–Little Cottonwood stock plutonic and volcanic system. This system spans the upper ~11.5 km of the crust and includes a large composite pluton (e.g., Little Cottonwood stock), dike-like conduit (e.g., Alta stock), and surficial volcanic edifices (East Traverse and Park City

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Mathieu, Lucie, Taylor D. Wasuita, Ross Sherlock, et al. "Zircon from Altered Monzonite Rocks Provides Insights into Magmatic and Mineralizing Processes at the Douay Au Project, Abitibi Greenstone Belt." Geosciences 12, no. 3 (2022): 114. http://dx.doi.org/10.3390/geosciences12030114.

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Zircon provides essential information on the age and oxidation state of magmatic systems and can be used to characterize magmatic-hydrothermal Au mineralizing systems. Using the Douay intrusion-related gold system (IRGS) as a type example of Neoarchean syenite-associated mineralization (Abitibi greenstone belt), we demonstrate that zircon from altered quartz-monzonite rocks can also be used to infer the age of a magmatic-hydrothermal event. Here, zircon chemistry is used to identify the following sequence of events at the Douay exploration project: (1) the crystallization of zircon at ~2690 Ma

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10

Hanson, R. Brooks. "Hydrodynamics of magmatic and meteoric fluids in the vicinity of granitic intrusions." Earth and Environmental Science Transactions of the Royal Society of Edinburgh 87, no. 1-2 (1996): 251–59. http://dx.doi.org/10.1017/s0263593300006660.

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ABSTRACT:Numerical models that account for fluid flow, magmatic and metamorphic fluid production, topography and thermal expansion of the fluid following emplacement of a granitic magma in the upper crust reveal controls on the distribution of magmatic fluids during the evolution of a hydrothermal system. Initially, fluid pressures are close to lithostatic in and near an intrusion, and internally generated magmatic and metamorphic fluids are expelled. Later, fluid pressures drop to hydrostatic values and meteoric fluids circulate throughout the system. High permeabilities and low rates of flui

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11

Zhao, He-Dong, Kui-Dong Zhao, Martin R. Palmer, Shao-Yong Jiang, and Wei Chen. "Magmatic-Hydrothermal Mineralization Processes at the Yidong Tin Deposit, South China: Insights from In Situ Chemical and Boron Isotope Changes of Tourmaline." Economic Geology 116, no. 7 (2021): 1625–47. http://dx.doi.org/10.5382/econgeo.4868.

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Abstract Owing to the superimposition of water-rock interaction and external fluids, magmatic source signatures of ore-forming fluids for vein-type tin deposits are commonly overprinted. Hence, there is uncertainty regarding the involvement of magmatic fluids in mineralization processes within these deposits. Tourmaline is a common gangue mineral in Sn deposits and can crystallize from both the magmas and the hydrothermal fluids. We have therefore undertaken an in situ major, trace element, and B isotope study of tourmaline from the Yidong Sn deposit in South China to study the transition from

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Kiryukhin, A. V., A. V. Sergeeva, O. O. Usacheva, V. Y. Lavrushin, and I. V. Tokarev. "THERMAL-HYDRODYNAMIC MODELING OF THE VALLEY OF GEYSERS AND KIKHPINYCH VOLCANO MAGMA-HYDROTHERMAL SYSTEM." JP Journal of Heat and Mass Transfer 38, no. 1 (2025): 127–68. https://doi.org/10.17654/0973576325007.

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Valley of Geyser Reservoir and Kikhpinych Volcano form a joint magma-hydrothermal system, which is characterized by recent (500-1500 years ago) eruptions of Kikhpinych volcano and sub-caldera formation; shallow magmatic activity in area of 15 km2 beneath, meteoric water and magmatic components (Cl, CO2) recharge and convective thermal outflow from Kikhpinych structure in adjacent Valley of Geyser, two catastrophic landslides/mudflows of 2007 and 2014 were possibly triggered by Kikhpinych magmatic injections. Chloride tracer, chemical geothermometer and local thermal-hydrodynamic modeling metho

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13

Lai, Biying, Bo Xu, and Yi Zhao. "U–Pb Dating, Gemology, and Chemical Composition of Apatite from Dara-e-Pech, Afghanistan." Crystals 14, no. 1 (2023): 34. http://dx.doi.org/10.3390/cryst14010034.

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Minerals of the apatite group commonly occur in granite pegmatites, and their ability to incorporate a wide range of trace elements makes them a good indicator of magma composition and magmatic–hydrothermal processes. Gem-quality purple apatite crystals from the Dara-e-Pech pegmatite field in Afghanistan have rarely been reported. Here, we investigated apatite crystals originated from this locality, using gemological testing, chemical analysis, and in situ U–Pb dating, with the purpose of identifying their origin, the constraints on the magma source in which the apatite crystals were formed, a

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Milenkov, Georgi, Rossitsa Vassileva, Sylvina Georgieva, Valentin Grozdev, and Irena Peytcheva. "Trace-element signatures and U-Pb geochronology of magmatic and hydrothermal titanites from the Petrovitsa Pb-Zn deposit, Madan region, Central Rhodopes (Bulgaria)." Geologica Balcanica 51, no. 2 (2022): 79–91. http://dx.doi.org/10.52321/geolbalc.51.2.79.

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The current study presents new geochronological and geochemical data for the Petrovitsa Pb-Zn deposit, Central Rhodopes, South Bulgaria. Based on in-situ U-Pb dating of titanites from pegmatites and skarnified mineralized marbles, it aims to provide new insights into the pegmatite formation and their relation to the hydrothermal system in the region. Titanite is an abundant accessory mineral in pegmatites and skarns within the Madan ore district. Commonly, it associates with feldspars, epidote, clinopyroxene, chlorite, hematite, zircon, apatite, allanite and monazite in both lithologies. Cryst

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Milenkov, Georgi, Rossitsa Vassileva, Sylvina Georgieva, Valentin Grozdev, and Irena Peytcheva. "Trace-element signatures and U-Pb geochronology of magmatic and hydrothermal titanites from the Petrovitsa Pb-Zn deposit, Madan region, Central Rhodopes (Bulgaria)." Geologica Balcanica 51, no. 2 (2022): 79–91. https://doi.org/10.52321/GeolBalc.51.2.79.

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The current study presents new geochronological and geochemical data for the Petrovitsa Pb-Zn deposit, Central Rhodopes, South Bulgaria. Based on in-situ U-Pb dating of titanites from pegmatites and skarnified mineralized marbles, it aims to provide new insights into the pegmatite formation and their relation to the hydrothermal system in the region. Titanite is an abundant accessory mineral in pegmatites and skarns within the Madan ore district. Commonly, it associates with feldspars, epidote, clinopyroxene, chlorite, hematite, zircon, apatite, allanite and monazite i

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Chen, Zuxing, Landry Soh Tamehe, Haiyan Qi, Yuxiang Zhang, Zhigang Zeng, and Mingjiang Cai. "Using Apatite to Track Volatile Evolution in the Shallow Magma Chamber below the Yonaguni Knoll IV Hydrothermal Field in the Southwestern Okinawa Trough." Journal of Marine Science and Engineering 11, no. 3 (2023): 583. http://dx.doi.org/10.3390/jmse11030583.

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The Yonaguni Knoll IV is an active seafloor hydrothermal system associated with submarine silicic volcanism located in the “cross back-arc volcanic trail” (CBVT) in the southwestern Okinawa Trough. However, the behavior of volatiles during magmatic differentiation in the shallow silicic magma chamber is unclear. Here, the volatile contents of apatite inclusions trapped in different phenocrysts (orthopyroxene and amphibole) and microphenocrysts in the rhyolite from the Yonaguni Knoll IV hydrothermal field were analyzed by using electron microprobe analysis, which aims to track the behavior of v

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17

Elliott, Brent. "Petrogenesis of Heavy Rare Earth Element Enriched Rhyolite: Source and Magmatic Evolution of the Round Top Laccolith, Trans-Pecos, Texas." Minerals 8, no. 10 (2018): 423. http://dx.doi.org/10.3390/min8100423.

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The Round Top rhyolite located in Trans-Pecos Texas is enriched in Be, F, Li, Nb, Rb, Sn, Th, U, Y, Zr, and rare earth elements (REEs). REE-bearing minerals are mainly ubiquitous nano-scale accessory phases throughout the groundmass, incorporated in synchysite-group minerals, xenotime-(Y), Y- and Ce-rich fluorite, and zircon. The rhyolite is peraluminous, high-silica, alkaline (not peralkaline), with elevated heavy rare earth element concentrations and anonymously negative Eu values. Pervasive spongy groundmass and recrystallization textures are consistent with the elevated and remobilized Zr,

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Pokrovski, Gleb S., Jacques Roux, and Jean-Claude Harrichoury. "Fluid density control on vapor-liquid partitioning of metals in hydrothermal systems." Geology 33, no. 8 (2005): 657–60. http://dx.doi.org/10.1130/g21475ar.1.

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Abstract Hot aqueous fluids, both vapor and saline liquid, are primary transporting media for metals in hydrothermal-magmatic systems. Despite the growing geological evidence that the vapor phase, formed through boiling of magmatic ore-bearing fluids, can selectively concentrate and transport metals, the physical-chemical mechanisms that control the metal vapor-liquid fractionation remain poorly understood. We performed systematic experiments to investigate the metal vapor-liquid partitioning in model water-salt-gas systems H2O-NaCl-KCl-HCl at hydrothermal conditions. Measurements show that eq

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Wang, Zhen-Yu, Hong-Rui Fan, Lingli Zhou, Kui-Feng Yang, and Hai-Dong She. "Carbonatite-Related REE Deposits: An Overview." Minerals 10, no. 11 (2020): 965. http://dx.doi.org/10.3390/min10110965.

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The rare earth elements (REEs) have unique and diverse properties that make them function as an “industrial vitamin” and thus, many countries consider them as strategically important resources. China, responsible for more than 60% of the world’s REE production, is one of the REE-rich countries in the world. Most REE (especially light rare earth elements (LREE)) deposits are closely related to carbonatite in China. Such a type of deposit may also contain appreciable amounts of industrially critical metals, such as Nb, Th and Sc. According to the genesis, the carbonatite-related REE deposits can

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Surour, Adel A., Amira M. El-Tohamy, and Gehad M. Saleh. "Chemistry of Hydrothermally Destabilized Rare-Metal and Radioactive Minerals in Deformed A-Type Granite in the Vicinity of Nugrus Shear Zone, South Eastern Desert, Egypt." Resources 14, no. 1 (2024): 4. https://doi.org/10.3390/resources14010004.

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In the Wadi Nugrus area, south Eastern Desert of Egypt, A-type granite is highly deformed in a prominent NW-SE trending shear zone, likely related to the Najd shear system. Deformation of this post-collisional leucogranite allows the propagation of hydrothermal alterations due to fluid circulation inside the so-called “Nugrus Shear Zone (NSZ)”. This results in the remarkable destabilization of the magmatic dissemination of rare-metal and U-Th minerals in the granite. Relict magmatic minerals that survived destabilization are represented by (1) ferrocolumbite with 14–63–16.39 wt% FeOt, (2) fres

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Lotfi, Mohammad, Mansoureh Shirnavard Shirazi, Nima Nezafati, and Arash Gourabjeripour. "MINERALOGY AND GEOCHEMISTRY STUDY OF REE MINERALS IN HOST ROCKS IN IIC IRON DEPOSIT, BAFGH MINERAL AREA, CENTRAL IRAN." Geosaberes 11 (January 8, 2020): 51. http://dx.doi.org/10.26895/geosaberes.v11i0.909.

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The IIC deposit area to the east of the Bafq region exposes rocks that comprise the part of the Central Iran continental terrane. The IIC deposit iron orebodies are magmatic-related hydrothermal deposits that, when considered collectively display a vertical zonation from high-temperature, magmatic ± hydrothermal deposits emplaced at moderate depths (~1–2 km) to magnetite-dominant IOCG deposits emplaced at an even shallower subvolcanic level. The shallowest parts of these systems include near-surface, iron oxide-only replacement deposits, surficial epithermal sediment-hosted replacement deposit

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Harlaux, Matthieu, Julien Mercadier, Wilédio Marc-Emile Bonzi, Valentin Kremer, Christian Marignac, and Michel Cuney. "Geochemical Signature of Magmatic-Hydrothermal Fluids Exsolved from the Beauvoir Rare-Metal Granite (Massif Central, France): Insights from LA-ICPMS Analysis of Primary Fluid Inclusions." Geofluids 2017 (2017): 1–25. http://dx.doi.org/10.1155/2017/1925817.

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The Beauvoir granite (Massif Central, France) represents an exceptional case in the European Variscan belt of a peraluminous rare-metal granite crosscutting an early W stockwork. The latter was strongly overprinted by rare-metal magmatic-hydrothermal fluids derived from the Beauvoir granite, resulting in a massive topazification of the quartz-ferberite vein system. This work presents a complete study of primary fluid inclusions hosted in quartz and topaz from the Beauvoir granite and the metasomatized stockwork, in order to characterize the geochemical composition of the magmatic fluids exsolv

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Holley, Elizabeth A., Thomas Monecke, Thomas Bissig, and T. James Reynolds. "Evolution of High-Level Magmatic-Hydrothermal Systems: New Insights from Ore Paragenesis of the Veladero High-Sulfidation Epithermal Au-Ag Deposit, El Indio-Pascua Belt, Argentina." Economic Geology 112, no. 7 (2017): 1747–71. http://dx.doi.org/10.5382/econgeo.2017.4528.

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Abstract The world-class Veladero high-sulfidation epithermal Au-Ag deposit is located in the Andean cordillera of Argentina near the northern end of the El Indio-Pascua metallogenic belt. The deposit comprises two nearly coalescing subhorizontal orebodies that are centered on an extensive zone of intense hydrothermal alteration. Intensely altered volcanic rocks are composed of fine-grained groundmass quartz that formed as a result of extreme acid leaching. These quartz grains contain ubiquitous rutile inclusions as well as healed microfractures of vapor-filled inclusions that record magmatic

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Harlaux, Matthieu, Kalin Kouzmanov, Stefano Gialli, et al. "Tourmaline as a Tracer of Late-Magmatic to Hydrothermal Fluid Evolution: The World-Class San Rafael Tin (-Copper) Deposit, Peru." Economic Geology 115, no. 8 (2020): 1665–97. http://dx.doi.org/10.5382/econgeo.4762.

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Abstract The world-class San Rafael tin (-copper) deposit (central Andean tin belt, southeast Peru) is an exceptionally large and rich (&gt;1 million metric tons Sn; grades typically &gt;2% Sn) cassiterite-bearing hydrothermal vein system hosted by a late Oligocene (ca. 24 Ma) peraluminous K-feldspar-megacrystic granitic complex and surrounding Ordovician shales affected by deformation and low-grade metamorphism. The mineralization consists of NW-trending, quartz-cassiterite-sulfide veins and fault-controlled breccia bodies (&gt;1.4 km in vertical and horizontal extension). They sh

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Gilmer, Amy, R. Sparks, Dan Barfod, Emily Brugge, and Ian Parkinson. "Duration of Hydrothermal Alteration and Mineralization of the Don Manuel Porphyry Copper System, Central Chile." Minerals 11, no. 2 (2021): 174. http://dx.doi.org/10.3390/min11020174.

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The Don Manuel porphyry copper system, located in the Miocene–Pliocene metallogenic belt of central Chile, contains spatially zoned alteration styles common to other porphyry copper deposits including extensive potassic alteration, propylitic alteration, localized sericite-chlorite alteration and argillic alteration but lacks pervasive hydrolytic alteration typical of some deposits. It is one of the youngest porphyry copper deposits in the Andes. Timing of mineralization and the hydrothermal system at Don Manuel are consistent with emplacement of the associated intrusions (ca. 4 and 3.6 Ma). T

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Fulignati, P., A. Gioncada, S. Costa, D. Di Genova, F. Di Traglia, and M. Pistolesi. "Magmatic sulfide immiscibility at an active magmatic-hydrothermal system: The case of La Fossa (Vulcano, Italy)." Journal of Volcanology and Geothermal Research 358 (June 2018): 45–57. http://dx.doi.org/10.1016/j.jvolgeores.2018.06.009.

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Sahlström, Fredrik, Zhaoshan Chang, Antonio Arribas, et al. "Reconstruction of an Early Permian, Sublacustrine Magmatic-Hydrothermal System: Mount Carlton Epithermal Au-Ag-Cu Deposit, Northeastern Australia." Economic Geology 115, no. 1 (2020): 129–52. http://dx.doi.org/10.5382/econgeo.4696.

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Abstract The Mt. Carlton Au-Ag-Cu deposit, northern Bowen basin, northeastern Australia, is an uncommon example of a sublacustrine hydrothermal system containing economic high-sulfidation epithermal mineralization. The deposit formed in the early Permian and comprises vein- and hydrothermal breccia-hosted Au-Cu mineralization within a massive rhyodacite porphyry (V2 open pit) and stratabound Ag-barite mineralization within volcano-lacustrine sedimentary rocks (A39 open pit). These orebodies are all associated with extensive advanced argillic alteration of the volcanic host rocks. Stable isotop

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Stoyanova, Anastasiya, Beyhan Chaush, Betina Petkova, et al. "Geological characteristics of the newly outlined Cu-Au deposits at the Sharlo Dere and Krasta prospects, northeast of the Chelopech Mine, Bulgaria." Review of the Bulgarian Geological Society 85, no. 3 (2024): 141–43. https://doi.org/10.52215/rev.bgs.2024.85.3.141.

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The Sharlo Dere and Krasta prospects, located on the northeastern flank of the Chelopech hydrothermal system, contain newly identified high-sulfidation (HS) Cu-Au mineralization zones, which are potential future resources for the Chelopech mine. This deposit is part of an Upper Cretaceous magmatic complex in a back-arc basin. The HS mineralization formed in a transition from a shallow intrusive epithermal environment to an underwater hydrothermal vent system, featuring sulfide- and sulfosalt-rich zones. It is associated with advanced argillic alteration and hosted by a 91.9±0.2 Ma dioritic int

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Matsunaga, Yasuo, and Wataru Kanda. "Numerical Modeling of a Volcanic Hydrothermal System Based on Resistivity Structure." Journal of Disaster Research 17, no. 5 (2022): 654–62. http://dx.doi.org/10.20965/jdr.2022.p0654.

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Numerical simulation is a useful method for studying the magmatic-hydrothermal systems of volcanoes. However, no comprehensive scheme has been established for constructing subsurface permeability structures that have a significant impact on fluid flow within the volcano. In this study, as a first step to establishing such a scheme, numerical simulations of hydrothermal fluid flow incorporating the heterogeneous properties of the permeability structure were performed utilizing the resistivity structure observed at Kusatsu-Shirane Volcano, central Japan. Although the constructed permeability str

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Moore, Joseph N., and Richard P. Gunderson. "Fluid inclusion and isotopic systematics of an evolving magmatic-hydrothermal system." Geochimica et Cosmochimica Acta 59, no. 19 (1995): 3887–907. http://dx.doi.org/10.1016/0016-7037(95)00289-c.

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Stimac, James A., Fraser Goff, and Ken Wohletz. "Thermal modeling of the Clear Lake magmatic-hydrothermal system, California, USA." Geothermics 30, no. 2-3 (2001): 349–90. http://dx.doi.org/10.1016/s0375-6505(00)00062-6.

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Yuan, Feng, Shao-Yong Jiang, Jiajun Liu, et al. "Geochronology and Geochemistry of Uraninite and Coffinite: Insights into Ore-Forming Process in the Pegmatite-Hosted Uraniferous Province, North Qinling, Central China." Minerals 9, no. 9 (2019): 552. http://dx.doi.org/10.3390/min9090552.

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The biotite pegmatites in the Shangdan domain of the North Qinling orogenic belt contain economic concentrations of U, constituting a low-grade, large-tonnage pegmatite-hosted uraniferous province. Uraninite is predominant and ubiquitous ore mineral and coffinite is common alteration mineral after initial deposit formation. A comprehensive survey of the uraninite and coffinite assemblage of the Chenjiazhuang, Xiaohuacha, and Guangshigou biotite pegmatites in this uraniferous province reveal the primary magmatic U mineralization and its response during subsequent hydrothermal events. Integratin

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Li, Jinwei, Lichuan Pan, Yitong Guo, and Shunfu Lu. "Multi-Isotopic Compositions of Ores from the Shizishan Cu–Au–Mo Orefield in the Tongling Region, Eastern China: Implications for Ore Genesis." Minerals 13, no. 7 (2023): 985. http://dx.doi.org/10.3390/min13070985.

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The Middle–Lower Yangtze Metallogenic Belt (MLYMB) hosts abundant porphyry–skarn–stratabound-type Cu–Au–Mo deposits. Despite extensive research, the origin of the stratabound-type deposits, which developed at the unconformity interface between the Devonian and Carboniferous strata in the MLYMB, remains controversial. The primary debate centers on whether these deposits are the result of Carboniferous sedimentary exhalative mineralization or Mesozoic magmatic–hydrothermal mineralization. In this paper, we examine three representative deposits in the Shizishan orefield: the Chaoshan skarn-type A

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Harlaux, Matthieu, Daniel J. Kontak, Alan H. Clark, et al. "Depositing >1.5 Mt of Tin Within <1 m.y. of Initial Granitic Intrusion in the San Rafael Tin (-Copper) Deposit, Southeastern Peru." Economic Geology 118, no. 6 (2023): 1371–96. http://dx.doi.org/10.5382/econgeo.5021.

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Abstract The San Rafael Sn (-Cu) deposit, located in the Eastern Cordillera of southeast Peru, is one of the world’s largest cassiterite-bearing vein systems (&gt;1 Mt Sn produced since 1969). The deposit consists of a quartz-cassiterite-chlorite-sulfide lode system spatially associated with an upper Oligocene (ca. 24 Ma) S-type granitic pluton. Based on a revised paragenetic sequence for the deposit, we interpret the temporal setting of both magmatic (biotite, K-feldspar) and hydrothermal (muscovite, adularia, cassiterite) minerals analyzed by 40Ar/39Ar step-heating and U-Pb laser ablatio

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Birski, Słaby, Chatzitheodoridis, et al. "Apatite from NWA 10153 and NWA 10645—The Key to Deciphering Magmatic and Fluid Evolution History in Nakhlites." Minerals 9, no. 11 (2019): 695. http://dx.doi.org/10.3390/min9110695.

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Apatites from Martian nakhlites NWA 10153 and NWA 10645 were used to obtain insight into their crystallization environment and the subsequent postcrystallization evolution path. The research results acquired using multi-tool analyses show distinctive transformation processes that were not fully completed. The crystallization history of three apatite generations (OH-bearing, Cl-rich fluorapatite as well as OH-poor, F-rich chlorapatite and fluorapatite) were reconstructed using transmission electron microscopy and geochemical analyses. Magmatic OH-bearing, Cl-rich fluorapatite changed its primar

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Fox, David C. M., Samuel C. Spinks, Milo Barham, et al. "Working up an Apatite: Enigmatic Mesoarchean Hydrothermal Cu-Co-Au Mineralization in the Pilbara Craton." Economic Geology 116, no. 7 (2021): 1561–73. http://dx.doi.org/10.5382/econgeo.4842.

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Abstract Globally, significant examples of hydrothermal Cu-Co mineralization are rare within Archean greenstone belts, especially relative to the endowment of these terranes with other world-class hydrothermal ore deposits, particularly Au deposits. Using U-Pb geochronology of hydrothermal apatite, this study provides the first absolute age constraints on the timing of mineralization for the Carlow Castle Cu-Co-Au deposit. Carlow Castle is a complex, shear zone-hosted, veined Cu-Co-Au mineral system situated within the Paleo-Mesoarchean Roebourne greenstone belt of the Pilbara craton of northw

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Kara, Hatice, Cihan Yalçın, Mehmet Ali Ertürk, and Leyla Kalender. "Mineral Chemistry and Iron Isotope Characteristics of Magnetites in Pertek Fe-Skarn Deposit (Türkiye)." Minerals 15, no. 4 (2025): 369. https://doi.org/10.3390/min15040369.

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This study investigates the mineral chemistry and iron isotope composition of the Pertek Fe-skarn deposit in the Eastern Taurides, Turkey, to elucidate skarn formation and ore genesis through chemical and isotopic parameters. The deposit consists of substantial and dispersed magnetite ores formed by the intrusion of a dioritic suite into marbles. Mineral assemblages, including hematite, goethite, andradite garnet, hedenbergite pyroxene, calcite, and quartz, exhibit compositional variations at different depths within the ore body. Magnetite is commonly associated with hematite, goethite, garnet

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Escolme, Angela, David R. Cooke, Julie Hunt, Ron F. Berry, Roland Maas, and Robert A. Creaser. "The Productora Cu-Au-Mo Deposit, Chile: A Mesozoic Magmatic-Hydrothermal Breccia Complex with Both Porphyry and Iron Oxide Cu-Au Affinities." Economic Geology 115, no. 3 (2020): 543–80. http://dx.doi.org/10.5382/econgeo.4718.

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Abstract The Productora Cu-Au-Mo deposit is hosted by a Cretaceous hydrothermal breccia complex in the Coastal Cordillera of northern Chile. The current resource, which includes the neighboring Alice Cu-Mo porphyry deposit, is estimated at 236.6 Mt grading 0.48% Cu, 0.10 g/t Au, and 135 ppm Mo. Local wall rocks consist of a thick sequence of broadly coeval rhyolite to rhyodacite lapilli tuffs (128.7 ± 1.3 Ma; U-Pbzircon) and two major intrusions: the Cachiyuyito tonalite and Ruta Cinco granodiorite batholith (92.0 ± 1.0 Ma; U-Pbzircon). Previous studies at Productora concluded the deposit had

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Hussain, Zahid, Chunhui Tao, Chun-Feng Li, et al. "Mineralogy, Fluid Inclusions, and Isotopic Study of the Kargah Cu-Pb Polymetallic Vein-Type Deposit, Kohistan Island Arc, Northern Pakistan: Implication for Ore Genesis." Minerals 11, no. 11 (2021): 1266. http://dx.doi.org/10.3390/min11111266.

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The Kargah Cu-Pb polymetallic deposit is a newly discovered ore deposit from the Gilgit-Baltistan region, located in the Kohistan Island Arc, northern Pakistan. However, this area is poorly researched on the ore genesis, and its origin and the evolution of its magmatic-hydrothermal system remain unclear. Three stages of mineralization were identified, including quartz-pyrite, quartz-sulfide, and carbonate representing early, middle, and late stages, respectively. The major ore minerals are pyrite, chalcopyrite, galena, and zincian tetrahedrite with minor native silver, and native gold mainly d

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Alizadeh Sevari, B., and A. Hezarkhani. "Fluid Evolution of the Magmatic Hydrothermal Porphyry Copper Deposit Based on Fluid Inclusion and Stable Isotope Studies at Darrehzar, Iran." ISRN Geology 2014 (January 8, 2014): 1–10. http://dx.doi.org/10.1155/2014/865941.

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The Darrehzar porphyry Cu-Mo deposit is located in southwestern Iran (~70 km southwest of Kerman City). The porphyries occur as Tertiary quartz-monzonite stocks and dikes, ranging in composition from microdiorite to diorite and granodiorite. Hydrothermal alteration and mineralization at Darrehzar are centered on the stock and were broadly synchronous with its emplacement. Early hydrothermal alteration was dominantly potassic and propylitic and was followed by later phyllic and argillic alteration. The hydrothermal system involved both magmatic and meteoric water which were boiled extensively.

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Pandit, Dinesh, Sourabh Bhattacharya, and Mruganka K. Panigrahi. "Dissecting through the metallogenic potentials of Precambrian granitoids: case studies from the Bastar and Eastern Dharwar Cratons, India." Geological Society, London, Special Publications 489, no. 1 (2019): 157–88. http://dx.doi.org/10.1144/sp489-2019-342.

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AbstractThe Malanjkhand granodiorite in the Bastar Craton hosts a major copper (+ molybdenum) deposit. It represents a Precambrian granite–ore system lacking in key morphological features of porphyry-type deposits but is comparable as a chemical package with a distinct mode of evolution of the magmatic-hydrothermal system. Mineral chemistry of biotite and apatite along with bulk geochemical data constrain critical parameters such as initial water and halogen contents of the magma. Evolution of the magmatic-hydrothermal fluid has been envisaged with available thermobarometric data. A quantitati

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Yang, Guang Shu, Yong Feng Yan, and Peng Yu Feng. "Ore-Forming Fluid System of the Anqing Cu-Fe Deposit, Anhui Province, China." Advanced Materials Research 734-737 (August 2013): 135–38. http://dx.doi.org/10.4028/www.scientific.net/amr.734-737.135.

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Fluid inclusions, carbon and oxygen isotopic compositions were discussed to understanding the ore-forming fluid system of Anqing Cu-Fe deposit. Homogeneous temperatures of fluid inclusions ranged from 124°C to 570°C, δ13CPDBvalues of the gangue minerals ranged from-3.3 to-0.9, and δ18O values ranged from 9.4 to 10.7, respectively. The results reveal that the primary ore-forming fluid was magmatic hydrothermal fluid characterized by high temperature, the boiling and mixing of fluids occurred in the main mineralization stage, the magmatic water was dominant in the ore-forming process, the physic

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Taran, Yuri, and Elena Kalacheva. "Seawater-rock interaction at Ushishir volcano-hydrothermal system, Kuril Islands." E3S Web of Conferences 98 (2019): 01049. http://dx.doi.org/10.1051/e3sconf/20199801049.

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Ushishir volcano is located in the middle of the Kuril Arc. The Ushishir crater, a closed bay connected with the ocean by a narrow and shallow strait is characterized by a strong hydrothermal activity. Boiling springs, hot pools, fumaroles and shallow submarine vents are manifestations of a magmatic-seawater hydrothermal system with the discharging solution similar in chemical and isotopic composition to the seafloor hydrothermal fluids. The main features of the Ushishir fluids are: (1) water has close to zero δD and a large oxygen isotopic shift (6 7‰); (2) high boron concentration (~70 ppm);

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Imura, Takumi, Yusuke Minami, Tsukasa Ohba, Akiko Matsumoto, Antonio Arribas, and Mitsuhiro Nakagawa. "Hydrothermal Aluminum-Phosphate-Sulfates in Ash from the 2014 Hydrothermal Eruption at Ontake Volcano, Central Honshu, Japan." Minerals 9, no. 8 (2019): 462. http://dx.doi.org/10.3390/min9080462.

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Aluminum-phosphate-sulfates (APS) of the alunite supergroup occur in igneous rocks within zones of advanced argillic and silicic alteration in porphyry and epithermal ore environments. In this study we report on the presence of woodhouseite-rich APS in ash from the 27 September 2014 hydrothermal eruption of Ontake volcano. Scanning electron microscope coupled with energy dispersive X-ray spectrometer (SEM-EDS) and field emission (FE)-SEM-EDS observations show two types of occurrence of woodhouseite: (a) as cores within chemically zoned alunite-APS crystals (Zoned-alunite-woodhouseite-APS), and

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Reed, M., B. Rusk, and J. Palandri. "The Butte Magmatic-Hydrothermal System: One Fluid Yields All Alteration and Veins." Economic Geology 108, no. 6 (2013): 1379–96. http://dx.doi.org/10.2113/econgeo.108.6.1379.

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Matsunaga, Yasuo, Wataru Kanda, Shinichi Takakura, et al. "Magmatic hydrothermal system inferred from the resistivity structure of Kusatsu-Shirane Volcano." Journal of Volcanology and Geothermal Research 390 (January 2020): 106742. http://dx.doi.org/10.1016/j.jvolgeores.2019.106742.

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Ambrosio, Michele, Marco Doveri, Maria Teresa Fagioli, Luigi Marini, Claudia Principe, and Brunella Raco. "Water–rock interaction in the magmatic-hydrothermal system of Nisyros Island (Greece)." Journal of Volcanology and Geothermal Research 192, no. 1-2 (2010): 57–68. http://dx.doi.org/10.1016/j.jvolgeores.2010.02.005.

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Monecke, Thomas, Ulf Kempe, Michael Trinkler, Rainer Thomas, Peter Dulski, and Thomas Wagner. "Unusual rare earth element fractionation in a tin-bearing magmatic-hydrothermal system." Geology 39, no. 4 (2011): 295–98. http://dx.doi.org/10.1130/g31659.1.

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Zhang, Xia, Zhilei Sun, Yachun Cai, Yue Xu, Nengyou Wu, and Hong Cao. "Pulsed Injections of Metal‐Rich Magmatic Fluids: Key Drivers of Mineralization in a Back‐Arc Basin Hydrothermal System." Geochemistry, Geophysics, Geosystems 26, no. 6 (2025). https://doi.org/10.1029/2025gc012318.

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AbstractSubmarine magmatic–hydrothermal systems, where magmatic volatiles and fluids possibly serve as major sources of mineralization elements, have been extensively documented in numerous felsic‐hosted hydrothermal fields. Previous studies have primarily focused on the contribution of magmatic volatiles in such hydrothermal systems. Although evidence has indicated that magmatic fluids have a greater capacity for transporting metals to overlying hydrothermal systems, their specific role in magmatic–hydrothermal systems remains inadequately understood. This study provides compelling evidence f

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Hector, Simon, Clifford G. C. Patten, Aratz Beranoaguirre, et al. "Magmatic evolution of the Kolumbo submarine volcano and its implication to seafloor massive sulfide formation." Mineralium Deposita, April 5, 2024. http://dx.doi.org/10.1007/s00126-024-01262-7.

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AbstractSeafloor massive sulfides form in various marine hydrothermal settings, particularly within volcanic arcs, where magmatic fluids may contribute to the metal budget of the hydrothermal system. In this study, we focus on the Kolumbo volcano, a submarine volcanic edifice in the central Hellenic Volcanic Arc hosting an active hydrothermal system. Diffuse sulfate-sulfide chimneys form a Zn-Pb massive sulfide mineralization with elevated As, Ag, Au, Hg, Sb, and Tl contents. These elements have similar behavior during magmatic degassing and are common in arc-related hydrothermal systems. Trac

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