Výsledky vyhledávání - "breccia pipe"

Akademický článek

Multistage development of a hydrothermal W deposit during the Variscan late-orogenic evolution: the Puy-les-Vignes breccia pipe (Massif Central, France)

Autor: Harlaux Matthieu, Marignac Christian, Mercadier Julien, Poujol Marc, Boiron Marie-Christine, Kouzmanov Kalin, Camacho Alfredo, Alikouss Saïda, Roméo Benjamin, Mouthier Bernard, Cuney Michel

Publikováno v: BSGF - Earth Sciences Bulletin, Vol 192, p 33 (2021)

The Puy-les-Vignes W deposit, located in the northwestern French Massif Central (FMC), is a rare occurrence of a wolframite-mineralized hydrothermal breccia pipe hosted in high-grade metamorphic gneisses. We present an integrated study of this deposi

Externí odkaz: https://doaj.org/article/8837e9a3ca6e432aaaaec8363cee8836

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Akademický článek

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Tourmaline as a potential mineral for exploring porphyry deposits: a case study of the Bilihe gold deposit in Inner Mongolia, China

Autor: Xueyuan Qiao, Lejun Zhang, Fanghua Zhang, Wenbo Li

Publikováno v: Mineralium Deposita. 57:61-82

Tourmaline is widespread at the Bilihe porphyry gold deposit in Inner Mongolia, China. Five types of tourmaline are recognized based on their occurring locations and microscopic structures: (1) Tur-A in quartz–magnetite ± K-feldspar veins and rela

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cdddd02f921b7eb7d01ba8bb666de119
https://doi.org/10.1007/s00126-021-01051-6

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Origin and evolution of a porphyry-breccia system: Evidence from zircon U-Pb, molybdenite Re-Os geochronology, in situ sulfur isotope and trace elements of the Qiyugou deposit, China

Autor: Li Tang, Yuan‐Ming Sheng, Xin-Kai Hu, Yu Zhao, Shouting Zhang, Tao Zeng, Li Sun

Publikováno v: Gondwana Research. 89:88-104

The Qiyugou Au deposit, located in the Xiong'ershan ore cluster of central China, consists of breccia pipe hosted Au ore bodies (>60 t Au) and newly discovered porphyry ore body (8 t Au). The porphyry Au mineralization occurs in the silicified core o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::88df0a30b694a6ef1ba6539e076d05e0
https://doi.org/10.1016/j.gr.2020.08.013

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Akademický článek

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A Breccia Pipe in the Deseret Limestone, South Flank of the Uinta Mountains, Northern Utah

Autor: Douglas A. Sprinkel, Thomas C. Chidsey, David W. Eby

Publikováno v: Geosites. 1:1-10

A breccia pipe is a cylindrical- or irregular-shaped mass of brecciated rock. A breccia consists of broken, angular fragments of rock cemented together by a fine-grained matrix. Hydrothermal breccia pipes form when hydrothermal solutions force their

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8395a2c9198ef6dc7de53db8be2a44a5
https://doi.org/10.31711/geosites.v1i1.55

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Akademický článek

Lithological and Hydrothermal Alteration Mapping of Epithermal, Porphyry and Tourmaline Breccia Districts in the Argentine Andes Using ASTER Imagery

Autor: Francisco J. Testa, Cecilia Villanueva, David R. Cooke, Lejun Zhang

Publikováno v: Remote Sensing, Vol 10, Iss 2, p 203 (2018)

The area of interest is located on the eastern flank of the Andean Cordillera, San Juan province, Argentina. The 3600 km2 area is characterized by Siluro-Devonian to Neogene sedimentary and igneous rocks and unconsolidated Quaternary sediments. Epith

Externí odkaz: https://doaj.org/article/5b777c9533d74e6996e7777083c46264

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Développement multiphasé d'un gîte hydrothermal à tungstène au cours de l'évolution tardi-orogénique varisque : le conduit bréchique à W de Puy-les-Vignes (Massif central, France)

Autor: Michel Cuney, Kalin Kouzmanov, Marc Poujol, Christian Marignac, Julien Mercadier, Benjamin Roméo, Alfredo Camacho, Bernard Mouthier, Marie-Christine Boiron, Saida Alikouss, Matthieu Harlaux

Publikováno v: Bulletin de la Société Géologique de France
Bulletin de la Société Géologique de France, Société géologique de France, In press, ⟨10.1051/bsgf/2021023⟩
Bulletin de la Société Géologique de France, Société géologique de France, 2021, 192, pp.33. ⟨10.1051/bsgf/2021023⟩
BSGF-Earth Sciences Bulletin, Vol 192, p 33 (2021)
Bulletin de la Société Géologique de France, Société géologique de France, 2021, 192, ⟨10.1051/bsgf/2021023⟩
Bulletin de la Société Géologique de France, 2021, 192, pp.33. ⟨10.1051/bsgf/2021023⟩

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::09a4cb4f5e91af761f0883d9512645dc
https://hal-insu.archives-ouvertes.fr/insu-03257761

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Akademický článek

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Geomorphic and geophysical evidence of a collapse origin for large sandstone depressions atop the western Cumberland Plateau in Tennessee

Autor: Amy L. Brock-Hon, Kevin D. Hon, Shannon McCarragher

Publikováno v: Geomorphology. 343:168-182

For over 70 years, closed topographic depressions developed in siliciclastic rocks of the Cumberland Plateau have been hypothesized to form via collapse of rock into caverns formed in the carbonate-rich rocks below. We made observations of surface ch

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1038a15d75228f8af8f7c77c1931a70a
https://doi.org/10.1016/j.geomorph.2019.07.005

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