Results 31 to 40 of about 146,299 (379)

A Data Driven Approach to Investigate the Chemical Variability of Clinopyroxenes From the 2014–2015 Holuhraun–Bárdarbunga Eruption (Iceland)

open access: yesFrontiers in Earth Science, 2020
The Holuhraun–Bárdarbunga (Iceland) eruption lasted approximately 6 months. Magma propagated laterally through a 40 km long dyke, while Bárdarbunga caldera was collapsing.
Luca Caricchi   +6 more
doaj   +1 more source

Varying processes, similar results: How composition influences fragmentation and subsequent feeding of large pyroclastic density currents

open access: yesFrontiers in Earth Science, 2022
Unlike their silicic counterparts, mafic eruptions are known for being on the low-end of the explosivity spectrum with eruption styles commonly ranging from effusive to Hawaiian fire fountaining.
Olivier Bernard   +10 more
doaj   +1 more source

MAGMATIZM AND EPITHERMAL Ag-Au ORE MINERALIZATION OF KRASNOYARSK GOLD ORE FIELD OF GORNY ALTAI

open access: yesИзвестия Томского политехнического университета: Инжиниринг георесурсов, 2019
The relevance of the study is caused by the need of researching petrology, geochemistry subvolcanic rocks and epithermal Ag-Au ore mineralization of Krasnoyarsk ore field of Gorny Altai.
Anatoliу I. Gusev   +1 more
doaj   +1 more source

Yorkshire Petrology [PDF]

open access: yesProceedings of the Yorkshire Geological Society, 1887
n ...
openaire   +2 more sources

Laboratory leaching tests to investigate mobilisation of metals within engineered geothermal reservoirs [PDF]

open access: yesE3S Web of Conferences, 2019
Combining geothermal energy utilization with the extraction of metals in a single interlinked process offers a way to improve the economics of engineered geothermal systems.
Rochelle Christopher   +5 more
doaj   +1 more source

The early Cycladic settlement at Dhaskalio, Keros: preliminary report of the 2008 excavation season [PDF]

open access: yes, 2009
The 2008 excavations on the small island of Dhaskalio opposite Dhaskalio Kavos on the Cycladic island of Keros are reviewed. An account is given of the survey, recording many walls of the early Bronze Age, and of the excavations, continued from the 2007 ...
Brodie, N.   +3 more
core   +1 more source

Petrology and P-T condition of white mica-chlorite schists from Vlasina series - Surdulica, SE Serbia [PDF]

open access: yesGeološki Anali Balkanskoga Poluostrva, 2002
This paper reports structural, textural, petrological and metamorphic data from Vlasina Series of greenschists rocks (as part of the Upper Complex of the Serbo-Macedonian Massif) within which group of white mica-chlorite schist are extensively developed.
Vasković Nada J.
doaj   +1 more source

Experimental constraints on amphibole stability in primitive alkaline and calc-alkaline magmas [PDF]

open access: yes, 2017
Equilibrium crystallization experiments were carried out on two primitive basaltic rocks (APR16: Na2O+K2O=4.40 wt%; CM42: Na2O+K2O=2.59 wt%) with the aim to investigate the amphibole stability in the differentiation processes at deep crustal level, of
Bonechi, Barbara   +4 more
core   +1 more source

Petrology, Magnetic susceptibility, Tectonic setting and mineralization associated with Plutonic and Volcanic Rocks, Eastern Bajestan and Taherabad, Iran

open access: yesJournal of Economic Geology, 2010
Study area is located in district of Bajestan and Ferdows cities, NE of Iran. Structurally, this area is part of Lut block. The oldest exposed rocks, to the north of intrusive rocks and in Eastern Bajestan, are meta-chert, slate, quartzite, thin-bedded ...
Maliheh Ghoorchi Rooki   +2 more
doaj   +1 more source

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