Results 11 to 20 of about 696,011 (373)

Quantitative characterization of igneous rock thermal effect on sandstone reservoir reconstruction based on heat conduction

open access: yesJournal of Petroleum Exploration and Production Technology, 2023
The X oilfield is the first sandstone reservoir under the influence of igneous rock, which is discovered and put into development in Bohai Sea. Compared with the conventional sandstone reservoir, the oilfield is affected by magmatic activity, the ...
Chun-xin Wu   +4 more
doaj   +1 more source

Igneous rock area and age in continental crust

open access: yesGeology, 2021
Rock quantity and age are fundamental features of Earth’s crust that pertain to many problems in geoscience. Here we combine new estimates of igneous rock area in continental crust from the Macrostrat database (https://macrostrat.org/) with a compilation
S. Peters, E. al.
semanticscholar   +1 more source

Study on Method of Determining the Safe Operation Window of Drilling Fluid Density with Credibility in Deep Igneous Rock Strata

open access: yes, 2021
It is difficult to determine the safe operation window of drilling fluid density (SOWDFD) for deep igneous rock strata. Although the formation three-pressure (pore pressure, collapse pressure, and fracture pressure) prediction method with credibility ...
Chao Han   +4 more
semanticscholar   +1 more source

Lithology classification of igneous rocks using C-band and L-band dual-polarization SAR data

open access: yesOpen Geosciences, 2023
Distinguishing different kinds of igneous rocks is difficult because of their subtle differences. Synthetic aperture radar (SAR) is sensitive to rock surface morphology, which can help a lot in classification. Dual-pol SAR data have the advantages of low
Guo Senmiao   +4 more
doaj   +1 more source

Carrock Fell: a Study in the Variation of Igneous Rock-Masses—Part I. The Gabbro

open access: greenQuarterly Journal of the Geological Society of London, 1894
Alfred Harker
openalex   +3 more sources

Experimental Study of the Mechanism of Acid Rain-Gabbro Interaction [PDF]

open access: yesE3S Web of Conferences, 2019
As a common natural disaster, acid rain could not only cause serious environmental pollution, but also endanger the engineering properties of rock due to water-rock interactions.
Zhao Xiaoyan   +3 more
doaj   +1 more source

The Heat Source Origin of Geothermal Resources in Xiong’an New Area, North China, in View of the Influence of Igneous Rocks

open access: yesFrontiers in Earth Science, 2022
The Xiong’an new area has abundant geothermal resources, and heat source research plays an important role in the geothermal system. Using the logging curve, we calculated the radioactive heat production of sedimentary layers and igneous rocks in non ...
Yue Cui   +6 more
doaj   +1 more source

A continuum model of multi-phase reactive transport in igneous systems [PDF]

open access: yes, 2019
Multi-phase reactive transport processes are ubiquitous in igneous systems. A challenging aspect of modelling igneous phenomena is that they range from solid-dominated porous to liquid-dominated suspension flows and therefore entail a wide spectrum of ...
Keller, Tobias, Suckale, Jenny
core   +2 more sources

Selenium in certain igneous rocks [PDF]

open access: yesBulletin of the Geological Society of Finland, 1973
The selenium contents of the igneous rocks from Finland and Iceland and a few from West-Greenland studied in this paper can be tentatively summed as follows: The selenium content shows a general tendency to decrease when passing from a basic to a more ...
T. Koljonen
doaj   +1 more source

Study on the adhesion performance of medium weathered igneous rock aggregate and asphalt [PDF]

open access: yesE3S Web of Conferences, 2021
In view of the current situation of the shortage of alkaline aggregate and the abundance of weakly acidic weathered igneous rocks around Nairobi, Kenya, in order to fully improve the adhesion performance of asphalt and acidic igneous rocks, this paper ...
Jiao Xuxue, Tao Yuanhong, Ren Longfang
doaj   +1 more source

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