Results 31 to 40 of about 78,364 (330)

Opportunities for large-scale energy storage in geological formations in mainland Portugal [PDF]

open access: yes, 2018
This article presents the methodology and results of the first screening conducted in Portugal to identify geological formations suitable for large-scale storage of energy from renewable sources.
Carneiro, Júlio   +2 more
core   +1 more source

Evaluation of Workability and Mechanical Properties in Cement Mortar after Compounding Igneous Rock Powder and Silica Fume

open access: yesBuildings
In order to investigate the influence of igneous rock powder and silica fume on the performance of cement mortar, facilitate the application of igneous rock powder in engineering, and promote the greening of the cement industry, this study examined the ...
Bo Liu   +5 more
doaj   +1 more source

Computing Elastic Moduli of Igneous Rocks Using Modal Composition and Effective Medium Theory

open access: yesGeosciences, 2022
Elastic constants of rock materials are the basic parameters required for modeling the response of rock materials under mechanical loads. Experimental tests for determining these properties are expensive, time-consuming and suffer from a high uncertainty
Saeed Aligholi, Manoj Khandelwal
doaj   +1 more source

The structure and petrology of the Cnoc nan Cuilean Intrusion, Loch Loyal Syenite Complex, NW Scotland [PDF]

open access: yes, 2013
In NW Scotland, several alkaline intrusive complexes of Silurian age intrude the Caledonian orogenic front. The most northerly is the Loch Loyal Syenite Complex, which is divided into three separate intrusions (Ben Loyal, Beinn Stumanadh and Cnoc nan ...
Goodenough, Kathryn M.   +5 more
core   +3 more sources

The Archaean to Proterozoic igneous rocks of the Pilbara region, Western Australia –internationally significant geology of a globally unique potential geopark

open access: yesInternational Journal of Geoheritage and Parks, 2019
The Pilbara region of Western Australia, covering some 500 km × 500 km, provides a diversity of Archaean to Proterozoic igneous rocks in a relatively compact area that records a younging southward crustal history of igneous activity, sedimentation, early
V. Semeniuk, M. Brocx
doaj   +1 more source

Does Zircon Shape Retain Petrogenetic Information?

open access: yesGeochemistry, Geophysics, Geosystems, 2023
Zircon shape is commonly reported during geochronology and geochemistry analyses of igneous, metamorphic, and sedimentary rocks, but the relationship of zircon shape to primary growth environmental conditions remains poorly constrained.
T. Scharf   +4 more
doaj   +1 more source

Quantitative Elimination of Seismic Pseudofaults and Fine Analysis of True Faults Underlying Igneous Rocks of No-Well Areas: A Case Study of Shuntuoguole Uplift in Tarim Basin [PDF]

open access: yesLithosphere
After multistage tectonic movement and evolution, large superimposed oil and gas basins generally developed many igneous rocks in the early rifting stages.
Ziran Jiang   +3 more
doaj   +1 more source

Provenance of sandstone layered in Injana Formation from Zawita and Dekala areas Northern of Iraq

open access: yesTikrit Journal of Pure Science, 2023
To interpret the provenance 0f Injana Formation,  20 sandstone samples of Injana Formation were collected  from Zawita and Dekala areas north Iraq (10 for each sections ), then  thin section have been done sildes.
Sarah A. Al-Ameri, Lafta S. Kadhim
doaj   +1 more source

Sr-Nd isotope geochemistry of the early Precambrian sub-alkaline mafic igneous rocks from the southern Bastar craton, Central India [PDF]

open access: yes, 2009
Sr–Nd isotope data are reported for the early Precambrian sub-alkaline mafic igneous rocks of the southern Bastar craton, central India. These mafic rocks are mostly dykes but there are a few volcanic exposures.
BL Weaver   +39 more
core   +1 more source

Effects of igneous rock erosion on spontaneous combustion properties and structure of coal

open access: yesMeikuang Anquan
In order to explore the influence law of igneous rock erosion on coal spontaneous combustion characteristics and structure, taking primary coal and igneous rock eroded coal in the same coal face of Shanxi Mine and Liaoning Mine as the samples, the ...
Haifeng HU   +4 more
doaj   +1 more source

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