The significance of metasomatic alteration surrounding carbonatite complexes as a REE-enrichment indicator [PDF]
Applied Earth Science, 2019 This research has received funding from the European Union’s Horizon 2020 research and innovation programme under grant No. 689909.
Broom-Fendley, S. +2 more
openaire +3 more sources
Hydrothermal speleogenesis in carbonates and metasomatic silicites induced by subvolcanic intrusions: a case study from the Štiavnické vrchy Mountains, Slovakia [PDF]
International Journal of Speleology, 2016 Several caves of hydrothermal origin in crystalline limestones and metasomatic silicites were investigated in the central zone of the Štiavnica stratovolcano, Štiavnické vrchy Mountains, central Slovakia.
Pavel Bella +4 more
doaj +3 more sources
Metasomatic Alteration of Ultramafic Rocks [PDF]
, 1989 Metasomatized ultramafic rocks from the 3800 Ma Isua supracrustal belt have been preferentially enriched in calcium, aluminium and silica, but show no or only little addition of potassium and rubidium. This unusual geochemical response to fluid infiltration can be explained in the light of a low buffered activity of aqueous silica during progressive ...
Rosing, Minik T.
core +4 more sources
Lamprophyres of the Peshchernoe gold deposit, their geological position, material composition, and metasomatic alterations (Northern Urals) [PDF]
Записки Горного институтаThe article presents the first data on biotite-hornblende lamprophyres discovered at the Peshchernoe gold deposit. We consider the geological position of lamprophyre dikes in the deposit structure and the relationship of these rocks with tectonically ...
Dmitrii V. Kuznetsov +3 more
doaj +2 more sources
Seafloor basalt alteration and chemical change in the ultra thinly sedimented South Pacific [PDF]
, 2014 Determining the relationship between ocean floor basalt alteration and sedimentation is fundamental to understanding how oceanic crust evolves with time.
Christopher Smith‐Duque +3 more
core +1 more source
Geology of the Pitchblende Deposits of Port Radium, Great Bear Lake, N.W.T. [PDF]
, 1955 The geology of the McTavish Arm area of Great Bear Lake, Northwest Territories, Canada, is reviewed and a geologic map is presented. The geology of the Labine Point region is described in detail.
Campbell, Douglas Dean
core +1 more source
Geochimica et Cosmochimica Acta, 2022 In ordinary chondrites (OCs), feldspar is present both in chondrules as a primary, igneous phase, and as a secondary phasethat results from crystallization of chondrule mesostasis glass during thermal metamorphism. To further understand thechemical and physical conditions prevailing during thermal metamorphism in OCs, we conducted a study of feldspar ...
Jonathan A. Lewis +2 more
openaire +1 more source
Mineralogy and Genesis of Joveinan Iron Skarn (Cenozoic Magmatic Arc, North of Isfahan) [PDF]
پترولوژی, 2017 Joveinan marbles and skarns are located 5 km NE of Ghohrood and 140 km NW ofIsfahan in the *central part of Urumieh- Dokhtar magmatic arc. Intrusion of Ghohroodgranitoid into the Cretaceous carbonate rocks caused the contact metamorphism andformation of ...
Shahzad Sherafat +1 more
doaj +1 more source
Electron Microprobe Analysis of Biotite with Reequilibration Texture in Altered Trachyte
Yankuang ceshi, 2019 BACKGROUND The chemical composition of biotite contains important genetic information. The in-situ analyses of biotite with metasomatic texture can reflect the migration of the elements during the metasomatic alteration, and provide mineralogical ...
NIE Xiao +4 more
doaj +1 more source
Metasomatic alteration associated with the formation of subvolcanic rocks of the Abagatuysky complex (Nerchinsk ore region, Eastern Transbaikalia) [PDF]
, 2019 Within the northeastern edge of the Borschovochny pluton, located in Eastern Transbaikalia, a complex of small intrusions is localized, represented by the subvolcanic bodies of the Early Cretaceous Abagatuysky andesite-dacite complex.
Kremer, Ivan O., Tishin, Platon A.
core +2 more sources