Results 91 to 100 of about 22,282 (212)

Simulated organic acid weathering of granodiorite and basalt

open access: yes, 1989
Basalt and granodiorite (medium to fine sand particle size) were leached by three low molecular weight aliphatic organic acids, namely citric, oxalic and acetic acid of . 1M concentration.
Aceman, Sheila
core   +1 more source

Definition of Hue of Different Types of Pokostivskiy Granodiorite Using Digital Image Processing

open access: yes, 2016
An important task of stone processing enterprises is decorativeness management of natural stone products. Among different ways to change the natural stone decorativeness parameters, stone polishing is the most common.
V. Korobiichuk   +4 more
semanticscholar   +1 more source

Model of mantle-crust interaction and magma generation in the suprasubduction orogen (Paleozoic of the Urals)

open access: yesЛитосфера, 2018
A model of magma formation in the crust of the Urals mobile belt, which is the best example of epioceanic suprasubduction orogen, has been developed. Magma formation occurs both in the relic oceanic and in the newly formed orogen crust. In the first case
German B. Fershtater   +3 more
doaj   +1 more source

Thermal Metamorphism around the Ballachulish Granodiorite [PDF]

open access: yesNature, 1934
FROM recent studies of the metamorphic rocks lying within the aureole of the Ballachulish granodiorite, it has appeared that there are present there most of the types of hornfelses listed in Goldschmidt's classification. Derived from these are also silica-poor types in which corundum and spinel are common.
openaire   +1 more source

A gravity survey of the Criffel Granodiorite [PDF]

open access: yes, 1960
The results are presented of a gravity survey of the Criffel - Dalbeattie granodiorite complex and the surroundingarea, carried out from the Geology Department of the Durham Colleges.
Kennett, Peter
core   +3 more sources

Nd-Sr Isotopic Geochemistry and U-Pb Geochronology of the Fé Granitic Gneiss and Lajedo Granodiorite: Implications for Paleoproterozoic Evolution of the Mineiro Belt, Southern São Francisco Craton, Brazil [PDF]

open access: yesGeologia USP. Série Científica, 2008
The Fé granitic gneiss and Lajedo granodiorite belong to a voluminous felsic-mafic plutonism, tectonically linked toPaleoproterozoic magmatic evolution of the Mineiro Belt, southern portion of the São Francisco Craton, central-easternBrazil.
Wilson Teixeira   +2 more
doaj  

Petrology, geochemistry and tectonic setting studies in magmatic complex generating the Takht Fe-skarn deposit, NE Hamedan

open access: yesJournal of Economic Geology, 2019
Introduction The Urumieh-Dokhtar Magmatic Assemblage (UDMA) forms a distinct NW-SE linear intrusive–extrusive complex Magmatism of the UDMA that occurred from Eocene to Quaternary, although the maximum activity was in the middle Eocene (Berberian and ...
Seyed Nematollah Haghighi Bardineh   +3 more
doaj   +1 more source

Geological setting and age of the Flemish Cap granodiorite, east of the Grand Banks of Newfoundland

open access: yes, 1985
Flemish Cap, a large isolated submarine knoll 600 km east of Newfoundland, consists of a central core of Hadrynian rocks and an onlapping sequence of undisturbed to disturbed Mesozoic–Cenozoic sediments.
R. K. Wanless   +3 more
core   +1 more source

Characteristics of Modal Layering in the Round Valley Peak Granodiorite, Eastern Sierra Nevada, California [PDF]

open access: yes, 2010
Many granitic plutons exhibit alternating mafic and felsic layers known as modal layering. They have been classically interpreted as sedimentary features that formed by crystal sedimentation.
Foley, Emily
core   +1 more source

La granodiorite de Bleida et la datation du Protérozoïque supérieur de l'Anti-Atlas (Maroc). The Bleida granodiorite and the dating of the Upper Proterozoic of the Anti-Atlas (Morocco)

open access: yes, 1985
The Bleida granodiorite, dated at 615 ± 12 My, is considered to be anterior to the tuffs, greywackes and conglomerates of the P IP or Upper P II that overlie the platform series and the ophiolitic complex which represent the Lower P II.
Philippe Remy   +3 more
core   +1 more source

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