Results 61 to 70 of about 52,304 (124)

Zinc Contents of Mafic Micerals in Granitic Rocks, with Special Reference to Ore Chemistry [PDF]

, 2003
In order to know the reason why the Cu/Zn-Pb ratios of skarn-type deposits related with the ilmenite-series granitic rocks are markedly higher than those related with the magnetite-series, comparative mineralogical studies were carried out for the two ...
Inoue, Yoshinori, Tomiya, Hisashi, Kase, Katsuo   +2 more
core   +1 more source

Top-down structures of mafic enclaves within the Valle Fértil magmatic complex (Early Ordovician, San Juan, Argentina)

, 2021
Magmatic structures related to the mechanical interaction between mafic magmas and granitoids have been studied in the Valle Fértil calc-alkaline igneous complex, Argentina.
Martino, Roberto Donato, Pinotti, Lucio Pedro, D'Eramo, Fabiana, Castro Dorado, Antonio, Vujovich, Graciela, Otamendi, Juan Enrique, Tibaldi, Alejandro, Viñao, Aldana   +7 more
core  

"Mineral and whole-rock geochemistry of Kestanbol Pluton (Ezine-Çanakkale) and their mafic microgranular enclaves, NW Anatolia-Turkey: Some evidences of felsic and mafic magma interaction."

, 2010
:     The Miocene Kestanbol granitoid, in Ezine-Canakkale, Turkey, is one of post-collision granitoids of western Anatolia, which have been related to the the late Cretaceous collision between the Anatolide-Tauride platform and the Pontides ...
YILMAZ ŞAHİN, SABAH, Gültekin, Ali Haydar, Göker, Fethi, A., Örgün, Yüksel, Karacık, Zekiye, GÜNGÖR, YILDIRIM   +5 more
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Top-down structures of mafic enclaves within the Valle Fértil magmatic complex (Early Ordovician, San Juan, Argentina) [PDF]

, 2009
Magmatic structures related to the mechanical interaction between mafic magmas and granitoids have been studied in the Valle Fértil calc-alkaline igneous complex, Argentina.
PINOTTI, Eleonora, MARTINO, R.D., VUJOVICH, G., TIBALDI, A., OTAMENDI, J.E., CASTRO, A., VIÑAO, A., D\u27ERAMO, F.   +7 more
core  

Model for the Origin and Significance of Microgranular Enclaves in Calc-alkaline Granitoids

, 1991
The origin and significance of microgranular enclaves as indicators of the occurrence of magma mixing and/or mingling episodes between basic magmas and anatectic acid magmas, either I- or S-type, are re-evaluated.
POLI, Giampiero, S. Tommasini
core   +1 more source

Mafic enclaves record syn-eruptive basalt intrusion and mixing [PDF]

, 2018
Mafic enclaves hosted by andesite erupted at the Soufrière Hills Volcano between 1995 and 2010 yield insights into syn-eruptive mafic underplating of an andesite magma reservoir, magma mixing and its role in sustaining eruptions that may be widely ...
Barclay, Jenni, Madeleine C.S. Humphreys, Thomas Christopher, Plail, Melissa, Melissa Plail, Edmonds, Marie, Andrew W. Woods, Woods, Andrew W., Christopher, Thomas, Marie Edmonds, Herd, Richard A., Woods, Andrew, Jenni Barclay, Richard A. Herd, Humphreys, Madeleine C.S., Humphreys, M.C.S, Woods, A. W, Christopher, T, Plail, M, Edmonds, M, Herd, R. A   +20 more
core   +2 more sources

Physico-mechanical properties of the system syenite-enclave in the Královec quarry

, 2017
The bachelor thesis focuses on mechanical properties of syenitoids and their mafic microgranular enclaves collected in actively mined quarry Královec near Jaroměřice nad Rokytnou.
Umlauf, Jiří
core   +1 more source

Interaction between felsic and mafic magmas in the Salmas intrusive complex, Northwestern Iran: constraints from petrography and geochemistry

, 2015
The Salmas plutonic complex, in the northernmost part of Sanandaj-Sirjan Zone of Iran, provides evidence for magma interaction processes. The complex contains mafic-intermediate, hybrid and felsic rocks which intruded into the Paleozoic metamorphic ...
Peter Appel, Buchs, D., Dieter Garbe-Schönberg, Appel, P., Garbe-Schönberg, D., Mitra Ghaffari, Nematollah Rashidnejad-Omran, Rahim Dabiri, Dabiri, Rahim, Ghaffari, M., David Buchs, José Francisco Santos, Garbe-Schönberg, Dieter, Santos, José Francisco, Dabiri, R., Iain McDonald, Appel, Peter, Ghaffari, Mitra, Mata, João, Buchs, David, Santos, J. F., McDonald, I., Rashidnejad-Omran, Nematollah, Mata, J., João Mata, Rashidnejad-Omran, N., McDonald, Iain   +26 more
core   +1 more source

Fingerprinting feldstar phenocrysts using crystal isotopic composition stratigraphy:Implications for crystal transfer and magma mingling in S-type granites

, 2000
Microsampling of cm-scale feldspar crystals within an S-type granite from the Lachlan Fold Belt of southeastern Australia has revealed complex internal Sr and Nd isotopic variations.
Waight, Tod E., Maas, Roland, Nicholls, Ian A.   +2 more
core   +1 more source

Magma mixing in the Karamaili granite belt of Eastern Junggar: evidence from A2-type granites and their mafic microgranular enclaves [PDF]

The Karamaili Orogenic Belt forms an essential part of the southernmost margin of the Eastern Junggar Orogenic Belt. The Late Carboniferous granitic belt of the Karamaili belt provides a valuable natural setting for studying the evolution of silicic ...
Yuan Yao, Yafei Sun, Xinzhong Zhan, Yaxiaer Yalikun, Yacong Wang, Bowen Zhang   +5 more
core   +1 more source