Results 1 to 10 of about 6,856 (206)

Reaction-driven magmatic crystallisation at the Maoniuping carbonatite [PDF]

open access: yesNature Communications
Igneous rocks form by solidification of magmas through cooling or volatile degassing following decompression. Expelled H2O is thought to trigger alteration around intrusions, leading to formation of metasomatic halos.
Yan Liu, Michael Anenburg
doaj   +2 more sources

Genetic concepts on the formation of the Austrian magnesite and siderite mineralizations in the Eastern Alps of Austria [PDF]

open access: yesGeologia Croatica, 2016
A consanguineous origin of the sparry siderite and magnesite mineralizations of the Eastern Alps has been repeatedly discussed in the past, often without the back-up of sound scientificarguments.
Walter Prochaska
doaj   +3 more sources

Geology and mineralization of the Bayan Obo supergiant carbonatite-type REE-Nb-Fe deposit in Inner Mongolia, China: A review

open access: yesChina Geology, 2023
The Bayan Obo supergiant carbonatite-related rare-earth-element-niobium-iron (REE-Nb-Fe) endogenetic deposit (thereafter as the Bayan Obo deposit), located at 150 km north of Baotou City in the Inner Mongolia Autonomous Region, is the largest rare-earth ...
Yi-ke Li   +19 more
doaj   +1 more source

Alteration-mineralization zonality of the Teploe 2 and Intruzivnoe molybdenum prospects in the Djetsky ore cluster, Eastern Sayan

open access: yesРуды и металлы, 2023
Molybdenum mineralization in the Eastern Sayan is represented by the stockwork, vein, and skarn types. The article is devoted to molybdenum ore occurrences of the Dzhetsky ore cluster of the Sisim-Divnogorsk minerogenic zone, that are characterized by ...
Suchkov A. V., Vydrich D. E.
doaj   +1 more source

MINERALOGY OF HOST ROCKS OF THE OSINOVSKOE GOLD-QUARTZ DEPOSIT (CENTRAL URALS) [PDF]

open access: yesМинералогия, 2023
The paper describes the mineralogy of mica shales of the Osinovskoe gold deposit in the Central Urals. Our studies unraveled the role of dynamometamorphism in the transformation of primary rocks and allowed the characterization of their metasomatic ...
N.P. Safina, L.Ya. Kabanova, I.A. Blinov
doaj   +1 more source

Mineralogical and geochemical characteristics of zircon from diorite porphyry dyke in Sergozerskoe gold occurrence (the Strel'ninsky greenstone belt, Kola region) [PDF]

open access: yesVestnik MGTU, 2016
Mineralogical and geochemical investigation of zircon from diorite porphyry from Sergozerskoe occurrence has been carried out. Study of morphology and inner structure of zircon crystals in back scattered electron rays as well as assaying for content and ...
Kudryashov N. M.   +3 more
doaj   +1 more source

Mal'javr – the first gold prospect in the Archean conglomerates, the Kola region

open access: yesVestnik MGTU, 2023
A new type of prospects of gold mineralization in the Kola region is considered in the paper. The Mal'javr prospect is located in the south-western flank of the Uragubsky greenstone belt in biotite gneiss – the metamorphosed sedimentary rocks with ...
Kalinin A. A.   +2 more
doaj   +1 more source

Sulfur loss from subducted altered oceanic crust and implications for mantle oxidation [PDF]

open access: yes, 2020
© The Author(s), [year]. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Walters, J. B., Cruz-Uribe, A. M., & Marschall, H. R.
Cruz‐Uribe, Alicia M.   +2 more
core   +1 more source

Studies of petrography, metasomatic alteration, and genesis of Kamtal iron-copper skarn, northeast of Kharvana, East-Azarbaijan

open access: yesJournal of Economic Geology, 2012
Kamtal skarn is located 15 km northeast of Kharvana, East-Azarbaijan. A quartz-monzonitic stock of Oligocene age intruded the upper Cretaceous sedimentary sequence (claystone, limestone, marl, and siltstone) developing noticeable metamorphic (marble ...
Rasool Ferdowsi   +3 more
doaj   +3 more sources

Hydrothermal alteration and mineralization of the prospects at the northern flank of the Baimka ore zone, Western Chukotka

open access: yesИзвестия высших учебных заведений: Геология и разведка, 2021
Background. Some papers describing the deposits and prospects in the Baimka ore zone (Baimka Trend), the Chukotka Autonomous Region have been recently published.
A. V. Yusupova   +2 more
doaj   +1 more source

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