Results 1 to 10 of about 188 (175)

Petrologi - geokimia batuan Gunung Api Tampomas dan sekitarnya

open access: yesIndonesian Journal on Geoscience, 2014
http://dx.doi.org/10.17014/ijog.vol3no1.20083Volcanic rocks of Mount Tampomas and its surroundings belong to low–K, calc–alkaline, and high–K series of basalt, basaltic andesite, and andesite suites containing 48.59 – 60.49 wt% of SiO and 0.31-1.67 wt ...
Mesker H. Dirk
doaj   +1 more source

Ore specialization of carbonatite complexes at the Urais and Timan

open access: yesЛитосфера, 2017
The ore specialization of carbonatite complexes of Urals-Timan region has been established: niobium and rare earth-niobium - for the Urals’ carbonatite complexes, the rare-earth - for carbonatites of Timan.
I. L. Nedosekova   +2 more
doaj   +2 more sources

The Distribution of Olivine Compositions in Icelandic Basalts and Picrites [PDF]

open access: yesJournal of Petrology, 2012
A number of recent studies have used the compositional relationship between magmatic crystals and their carrier liquids to understand processes within volcanic plumbing systems. Here, an extensive compilation of electron microprobe data for Icelandic olivine and glass compositions is used to examine the distribution of the forsterite content of olivine
Thomson, Andrew R, Maclennan, John
openaire   +2 more sources

The General Geology of the Kruger National Park

open access: yesKoedoe: African Protected Area Conservation and Science, 1986
Geological units and new data gathered during regional mapping of the Kruger National Park are summarised. A simplified geological map is presented in conjunction with this paper.
I.C. Schutte
doaj   +1 more source

On the source regions for mare picrite glasses [PDF]

open access: yesJournal of Geophysical Research: Planets, 2000
Models for the crystallization of the magma ocean, phase equilibria constraints, and geochemical criteria constrain the mare basalt source region to lie deep within the Moon and within olivine‐orthopyroxene cumulate layers of the magma ocean. The Mg* compositions of the mare basalt source region, the ferroan anorthosite crust and the mg‐suite ...
openaire   +1 more source

Minerals-concentrators of rare-earth elements in basites-ultrabasites intrusives of Norilsk district

open access: yesИзвестия высших учебных заведений: Геология и разведка, 2017
The conditions of being, the history of formation and transformation of minerals-concentrators of rare-earth elements (REE) - apatite minerals group and epidote minerals group, have been studied and described.
Yu. D. Gritsenko, A. A. Serova
doaj   +1 more source

A study of ex-situ carbon mineralization under low intensity aqueous reaction

open access: yesCarbon Capture Science & Technology
Safe, scalable and permanent options for carbon dioxide storage is essential to achieve net negative greenhouse gas emissions and limit catastrophic global warming. A benign and thermodynamically stable form of CO2 storage is a carbonate mineral.
Adam Sjolund   +5 more
doaj   +1 more source

The Origin and Evolution of Magnetic Fabrics in Mafic Sills

open access: yesFrontiers in Earth Science, 2019
Studying extinct volcanoes where erosion has exposed dykes and sills provides direct access to the fossil remnants of magma movement, however, linking crystallized magma to emplacement dynamics is challenging.
Simon A. Martin   +3 more
doaj   +1 more source

Late Permian–Early Triassic Kamensky dyke belt, NW margin of Siberian platform: Two stages of the Siberian superplume event

open access: yesGeosystems and Geoenvironment
A large (900 km long by 50-60 km wide) Early Triassic dyke swarm intruded along the northern margin of the Siberian platform in the Yenisei-Khatanga trough, crossing the Noril’sk, Kamensky and Maimecha-Kotui provinces.
V.V. Ryabov   +5 more
doaj   +1 more source

Subduction, collision and plumes in the epoch of the Late Paleozoic magmatism of the Magnitogorsk zone (the Southern Urals)

open access: yesЛитосфера, 2019
Subject. A systematization of Late-Paleozoic magmatic formations of the Magnitogorsk zone of the Southern Urals in the process of an accretion of the Magnitogorsk paleoarc to the margin of the East European continent (EEC) with formation in Famenian and ...
D. N. Salikhov   +3 more
doaj   +1 more source

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