Results 71 to 80 of about 15,324 (216)

Porphyry and Epithermal Au-Cu Systems of the Southern Caucasus and Northern Iran

Bulletin of the Mineral Research and Exploration
This article presents tangible geological evidence for coexistence of porphyry copper and epithermal gold systems within single polygenic deposits and provides a paleothermophysical model for their origins.
Alexander G. Tvalchrelidze
doaj   +1 more source

Dambludi Gold-Copper-Porphyry Depozit (Georgia)

Detailed, comprehensive geological surveys of the Dambludi polymetallic ore deposit have revealed a number of features characteristic of porphyry-type deposits.
Joni Shubitidze, Mirian Gagnidze, Koba Khmaladze, Tariel Thedliashvili, Davit Tsheishvili   +4 more
core   +1 more source

Hydrothermal Sealing at Turrialba, Poás, and Rincón de la Vieja Volcanoes (Costa Rica) Promotes Phreatic and Phreatomagmatic Eruptions

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 11, November 2026.
Abstract Hydrothermal sealing is a mechanism thought to be responsible for challenging‐to‐forecast phreatic and phreatomagmatic eruptions. To better understand this process, we present a study in which we assessed the textural, mineralogical, and physical properties (porosity, permeability, and tensile strength) of blocks of hydrothermal seal that were
Michael J. Heap, Geoffroy Avard, Claire E. Harnett, H. Albert Gilg, James Hickey, Thierry Reuschlé, Fabian B. Wadsworth, Maëlys Moulin, Sophie Pearson‐Grant, J. Maarten de Moor, Emily Mick, Patrick Baud   +11 more
wiley   +1 more source

Homonymy; Aristotelian Definition and the Interpretations of Porphyry and Avicenna [PDF]

حکمت سینوی
Aristotle, at the beginning of the Categories, provides a brief definition of homonym and synonym. Aristotelian and Platonic philosophers have engaged in interpreting, criticizing, and extending these Aristotelian definitions.
vahid khademzadeh
doaj   +1 more source

The geology, alteration and timing of porphyry intrusions and breccias associated with the development of Los Helados porphyry copper-gold deposit, Chile

, 2020
The Los Helados porphyry Cu-Au deposit is part of the Miocene belt of northern Chile, it is located at -28.34 Lat and -69.58 Long, between the Maricunga and El Indio metallogenic belts.
Guitart, Agustin
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A MUC13 Variant Enhances Intestinal Ferric Iron Absorption in Unexplained Hyperferritinemia

Liver International, Volume 46, Issue 11, November 2026.
ABSTRACT Background & Aims Hyperferritinemia frequently remains unexplained despite comprehensive evaluation. We conducted a sequencing‐based exome association study to identify genetic variants associated with plasma ferritin levels in patients with unexplained hyperferritinemia.
Jonas Callet, Yong H. Sheng, Yaowu He, Maël Silva Rodriguez, Céline Chéry, Ramia Safar, Françoise Barbé, Mouni Bensenane, Rosa‐Maria Guéant‐Rodriguez, Fares Namour, Guillaume Gauchotte, Janelle Louise Hancock, Hana Manceau, Thibaud Lefebvre, Dimitri Tchernitchko, Hervé Puy, Timothy H. Florin, Jakob Begun, John D. Hooper, Jean‐Pierre Bronowicki, Michael A. McGuckin, Jean‐Louis Guéant, Abderrahim Oussalah   +22 more
wiley   +1 more source

Early cretaceous molybdenum-bearing felsic magmatic rocks in the tongmushan district, northern great Xing’an range: implications for mesozoic porphyry metallogenesis

Frontiers in Earth Science
The Nenjiang-Heihe metallogenic belt of the northern Great Xing’an Range is renowned for Mesozoic epithermal Au deposits, however, apart from the Duobaoshan and Tongshan super-large porphyry deposits in the Paleozoic, no superlarge porphyry copper ...
Wang Zhuo, Li Xu-Dong, Wang Jin, Li Cheng-Lu, Wang Zhao-Lin, Wang Zhao-Lin, Yin Yuqing, Yuan Mao-Wen, Lv Ming-Qi, Masroor Alam   +9 more
doaj   +1 more source

Dacite porphyry

, 1919
Spm. 90-4-1-99 Dacite porphyry. Clear Creek, Shasta Co., California.

core  

Minimal Categorical System and Predication Theory In Porphyry

, 2017
The article considers some problematic aspects of Porphyry’s typology of Aristotle’s categories and the theory of predication. Minimal (_________) class of categories in Porphyry is revealed.
С.В. Гарин
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Geodynamic Significance of Intraplate Basaltic Magmatism From the Western Mediterranean Region

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 10, October 2026.
Abstract Dynamic topography changes as mantle convection evolves, making its past surface expression difficult to reconstruct. Widespread Neogene‐Quaternary intraplate basaltic magmatism across the Western Mediterranean Region allows us to test whether dated basalts preserve the mantle thermal structure responsible for regional dynamic support.
Chia‐Yu Tien, Nicky White, Megan Holdt, John Maclennan, Benedict Conway‐Jones   +4 more
wiley   +1 more source