Chemical diffusion of fluorine in jadeite melt at high pressure [PDF]
, 1984 The chemical diffusion of fluorine in jadeite melt has been investigated from 10 to 15 kbars and 1200 to 1400°C using diffusion couples of Jadeite melt and fluorine-bearing jadeite melt (6.3 wt.% F). The diffusion profile data indicate that the diffusion
Dingwell, Donald B. +1 more
core +1 more source
Varying rock responses as an indicator of changes in CO2-H2O fluid composition [PDF]
The formation of the late Archean charnockite zone of southern India was ascribed to dehydration recrystallization due to an influx of CO2. Pressure temperature conditions for the metamorphism were calculated at about 750 C and 7.5 Kbar.
Friend, C. R. L.
core +1 more source
Identifying crustal contributions in the Patagonian Chon Aike Silicic Large Igneous Province. [PDF]
Contrib Mineral Petrol, 2023 Foley ML +6 more
europepmc +1 more source
The Acraman impact and its widespread ejecta, South Australia [PDF]
Discovery of a widespread horizon of shock-deformed volcaniclastic ejecta preserved in Late Proterozoic (approx. 600 Ma) shales in South Australia and its probable link to the Acraman impact structure in the Middle Proterozoic Gawler Range.
Gostin, V. A. +2 more
core +1 more source
Generation of metal-rich felsic magmas during crustal anatexis
Geology, 2003 We show that partial melting of a preexisting mineral deposit during regional anatexis is likely to lead to incorporation of sulfide melt into silicate melt. Simple dissolution of metals in silicate melt during anatexis leads to minor metal addition to escaping magma, but physical entrainment of sulfide melt can lead to extreme enrichment and higher ...
Tomkins, Andrew, Mavrogenes, John
openaire +2 more sources
Late Svecofennian leucogranites of southern Finland : Chronicles of an orogenic collapse [PDF]
, 2011 Leucogranite magmatism occurred in southern Finland during the later stages of the Paleoproterozoic Svecofennian orogeny. The leucogranites are considered to have formed from pre-existing crustal rocks that have undergone anatexis in the extensional ...
Kurhila, Matti
core
Extensive crystal fractionation of high-silica magmas revealed by K isotopes. [PDF]
Sci Adv, 2022 Wang ZZ +6 more
europepmc +1 more source
Modelling mid-crustal migmatite terrains as feeder zones for granite plutons: the competing dynamics of melt transfer by bulk versus porous flow [PDF]
, 2017 The common association of mid-crustal migmatites with an upper-level granite pluton could indicate that the migmatites are a feeder zone for the pluton. If magma from a deeper level pervasively intrudes a high temperature metamorphic complex, most of the
Baumgartner, Lukas P. +2 more
core
Características isotópicas Sr-Nd do Granito do Pedregal e rochas migmatíticas associadas [PDF]
, 2015 Neste trabalho são apresentados os resultados isotópicos Sr-Nd do Granito do Pedregal e das rochas gnaissomigmatíticas associadas, aflorantes na Zona Centro-Ibérica noroeste de Portugal, no bordo oriental do maciço granítico sin-orogénico do Porto.
Ferreira, J. A. +3 more
core
Geological context of the Boumnyebel talcschists (Cameroun): Inferences on the Pan-African Belt of Central Africa Le contexte géologique des talcschistes de Boumnyebel (Cameroun) : implications pour la chaîne panafricaine d'Afrique centrale [PDF]
, 2010 International audienceThe talcschists of the Boumnyebel area (southern Cameroon) form ≤ 30 m thick discontinuous layers within a Pan-African nappe unit (Yaoundé group), which includes, at the base, muscovite + biotite ± garnet micaschists associated with
Barbey, Pierre +5 more
core +3 more sources