Results 21 to 30 of about 75,256 (359)

Igneous Rocks

open access: yesThe Geographical Journal, 1914
n ...
F., J. D., Daly, R. A.
openaire   +3 more sources

Hydrocarbons in igneous rock of Brazil: A review

open access: yesPetroleum Research, 2020
Igneous rocks are widely developed in many hydrocarbon-bearing sedimentary basins in Brazil, and some igneous rocks play positive roles in the oil and gas accumulation process.
Kangxu Ren   +3 more
doaj   +1 more source

Transformation of minerals at the boundary of magma-coal contact zone: case study from Wolonghu Coal Mine, Huaibei Coalfield, China

open access: yesInternational Journal of Coal Science & Technology, 2020
Mesozoic and Cenozoic magma activity in the Wolong Lake mining area of Huaibei is frequent, and the degree of magma intrusion into coal seams remarkable.
Xing Chen   +3 more
doaj   +1 more source

Petrographical and Mineralogical Characteristics of Bengge Alkaline Igneous Complex in Zhongdian, Western Yunnan and Its Geological Significance

open access: yesKuangchan zonghe liyong, 2022
Bengge alkaline igneous complex in Zhongdian, Western Yunnan has the variety of rock types, which is production after a complex magma—fluid process. The petrographical and mineralogical analysis of the host rock and its xenolith suggests that the igneous
Yupeng Huang   +6 more
doaj   +1 more source

Detrital zircon SHRIMP U-Pb age study of the Cordillera Darwin Metamorphic Complex of Tierra del Fuego : sedimentary sources and implications for the evolution of the Pacific margin of Gondwana [PDF]

open access: yes, 2010
The Cordillera Darwin Metamorphic Complex in the southernmost Andes includes a basement of probable Palaeozoic age, a mid-Jurassic and younger volcano-sedimentary cover, and a suite of Jurassic granites, all of which were jointly metamorphosed during the
Calderon, M.   +6 more
core   +1 more source

Potential of basalt dust to improve soil fertility and crop nutrition

open access: yesJournal of Agriculture and Food Research, 2022
The search for higher yields, lower production costs, and increased sustainability in agriculture implies optimizing crop nutritional management. In this sense, basalt dust has shown potential to improve soil fertility and crop nutrition.
Lucas Terto Conceição   +7 more
doaj   +1 more source

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

Performance of the X-ray powder diffraction (XRD), X-ray fluorescence (XRF) and the industrial computed tomography used for characterization of the vesicular volcanic rock.

open access: yesBrazilian Journal of Radiation Sciences, 2021
Volcanic rock is a designation in geology given to extrusive igneous rocks. One type of igneous rock of interest, in economic terms, is vesicular, since, besides the knowledge of the morphology (positioning, size, direction, and interconnectivity of the ...
Rodrigo Silva Santos   +7 more
doaj   +1 more source

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