 | | Journal (article/letter/editorial) | | Chemistry and petrological evolution of the Lastarria volcanic complex in the north Chilean Andes J O S E A...de Geologi'a y Mineria, Casilla 10465, Santiago, Chile (Received 29 October 1991; accepted 12 December...December 1991) Abstract - The Lastarria volcanic complex, along the northern Chile-Argentina border, includes...three morphostructural components: Southern Spur, Lastarria (the highest cone, 5697 m) and Negriales (a geographically...lava field, 5.4 km3). Petrographically, the Lastarria complex consists of pyroxene andesites and pyroxene-amphibole |  | Robidoux, P., Rizzo, A.L., Aguilera, F., Aiuppa, A., Artale, M., Liuzzo, M., Nazzari, M., Zummo, F. (2020) Petrological and noble gas features of Lascar and Lastarria volcanoes (Chile): Inferences on plumbing systems and mantle characteristics. Lithos, 370. 105615pp. doi:10.1016/j.lithos.2020.105615 | Journal (article/letter/editorial) | | and noble gas features of Lascar and Lastarria volcanoes (Chile): Inferences on plumbing systems and...and noble gas features of Lascar and Lastarria volcanoes (Chile): Inferences on plumbing systems and...and noble gas features of Lascar and Lastarria volcanoes (Chile): inferences on plumbing systems and...y Matemáticas, Universidad de Chile, Plaza Ercilla 803, Santiago, Chile 2 of Istituto Nazionale Di Geofisica...Católica del Norte, Avenida Angamos 0610, Antofagasta, Chile re 4 Núcleo de Investigación en Riesgo |  | | Journal (article/letter/editorial) | | applications is in thermobarometry, especially for volcanic-magmatic systems. However, many thermobarometers...composition, which is not always available in volcanic products (e.g., partially crystallized melts or...1743–1822), and presently refers to a supergroup of complex silicate minerals (more than 100 end-members) with... Amphibole crystal chemistry is controlled by complex mutual relationships between the composition of...applications is in geothermobarometry, especially for volcanic systems, e.g., [9,12,13]. Recent single-phase |  | | Journal (article/letter/editorial) | | The volcanic rocks, consisting of basalt, basaltic andesite, andesite, and tuff 12 with volcanic clastic...clinopyroxene and plagioclase, while basaltic andesite and andesite contain variable 16 amounts of clinopyroxene...displays multiple zoning patterns, suggesting complex 19 magmatic processes in different magma storages...intermediate magma 27 reservoirs, while basaltic andesite and andesite might be produced via open-system 28 processes...the magmatic plumbing 57 system associated to volcanic exposures (Eskandari et al., 2018; Shane and Coote |  | | Journal (article/letter/editorial) | | Petrology and geochemistry of early Carboniferous volcanic rocks in the Xinyuan region of western Tianshan:...Petrology and geochemistry of early Carboniferous volcanic rocks in the Xinyuan region of western Tianshan:...Petrology and geochemistry of early Carboniferous volcanic rocks in the Xinyuan region of western Tianshan:...the early Carboniferous volcanic rocks in the Xinyuan region. These volcanic rocks mainly consist of...of calc-alkaline basalt, trachy-andesite, and rhyolite, and show subduction-related geochemical and isotopic |  | | Journal (article/letter/editorial) | | medium-K calc-alkaline to shoshonitic basalt, trachy-andesite and AC trachyte, while those in the section...section II consist of shoshonitic trachy-andesite, trachyte with a U-Pb age of 308.1 Ma, and monzonite with...(308.1-309.6 Ma) shoshonitic monzonite, trachy-andesite and trachyte in the section II were generated...RI calc-alkaline to shoshonitic basalt, trachy-andesite and trachyte in the section I were SC produced...south, namely the north Tianshan accretionary complex, the Yili-central Tianshan and the south Tianshan |  | | Journal (article/letter/editorial) | | Scarlato et al., 2017). Such a combination of 47 complex processes that gradually modify the composition...Xinyuan region represent a continental arc 76 volcanic center formed during the early Carboniferous period...Xinyuan magmatic plumbing system and unravel the complex 81 magmatic processes during magma storage and...contains a Precambrian 90 basement and Paleozoic volcanic-sedimentary strata. The basement rocks are 91...sedimentary rocks, carbonate rocks, and interlayered volcanic 95 rocks (Han and Zhao, 2018; Huang et al., |  | Yu, Ming-Zhen, Chen, Xue-Gang, Garbe-Schönberg, Dieter, Ye, Ying, Chen, Chen-Tung Arthur (2019) Volatile Chalcophile Elements in Native Sulfur from a Submarine Hydrothermal System at Kueishantao, Offshore NE Taiwan. Minerals, 9 (4) 245 doi:10.3390/min9040245 | Journal (article/letter/editorial) | | on the native sulfur matrix in a shallow-water volcanic hydrothermal system, to which relatively little...directly during the hydrothermal circulation in volcanic hydrothermal systems. Some researchers have reported...the chalcophile elements in native sulfur and volcanic gases in hydrothermal systems. Kim et al., (2011)...550 E, 24◦ 500 N; Figure 1b), a Holocene-aged volcanic island resulting from an eruption approximately...mainly 1.6 mm, sulfur and as impurities within andesite fragments (Figure 2). Basedaton our analyses as |  | Luo, Lianchao, Wen, Huaguo, Zheng, Rongcai, Liu, Ran, Li, Yi, Luo, Xiaotong, You, Yaxian (2019) Subaerial sulfate mineral formation related to acid aerosols at the Zhenzhu Spring, Tengchong, China. Mineralogical Magazine, 83 (3) 381-392 doi:10.1180/mgm.2018.164 | Journal (article/letter/editorial) | | Abstract Zhenzhu Spring, located in the Tengchong volcanic field, Yunnan, China, is an acid hot spring with...2011; Tang et al., 2014), caves in geothermal or volcanic settings (Rodgers et al., 2000; White, 2010),...(superficial water bodies), most of these minerals in volcanic and/or geothermal environments are ordinarily...ordinarily present as fumarolic encrustations, volcanic sublimates, and efflorescences (Stoiber and Rose, 1974;...several other less common formation mechanisms of volcanic/fumarolic sulfate minerals have also been proposed |
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