Results 41 to 50 of about 4,773 (290)

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

open access: yes, 2018
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 rheological conditions, flow speeds, and length scales.
arxiv   +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

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

Fault slip in hydraulic stimulation of geothermal reservoirs: governing mechanisms and process-structure interaction [PDF]

open access: yesThe Leading Edge 39, no. 12 (2020): 893-900, 2020
Hydraulic stimulation of geothermal reservoirs in low-permeability basement and crystalline igneous rock can enhance permeability by reactivation and shear dilation of existing fractures. The process is characterized by interaction between fluid flow, deformation, and the fractured structure of the formation. The flow is highly affected by the fracture
arxiv   +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

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

Characterizing Drivers of Asia's Black Elephant Disaster Risks

open access: yesEarth's Future, Volume 10, Issue 12, December 2022., 2022
Abstract Asia has the fastest growing population and economy, but it is also the most disaster‐prone region in the world. Resilience to disaster impacts from natural hazards will be key to the long‐term sustainability of this rapidly growing region. The first step to building resilience is to identify the key threats that this region faces. We describe
Yolanda C. Lin   +7 more
wiley   +1 more source

Craton Destruction Induced by Drastic Drops in Lithospheric Mantle Viscosity

open access: yesEarth and Space Science, Volume 9, Issue 12, December 2022., 2022
Abstract The disruption of the mantle roots of cratons is common after cratonization. Craton destruction, which is characterized by severe lithospheric thinning, extensive thrust and extensional deformation, basin filling, and intense thermal activities, is relatively rare and is generally attributed to intensely reduced viscosity contrasts between the
Lu Wang   +3 more
wiley   +1 more source

2019 Mw 6.0 Mesetas (Colombia) Earthquake Sequence: Insights From Integrating Seismic and Morphostructural Observations

open access: yesEarth and Space Science, Volume 9, Issue 12, December 2022., 2022
Abstract The boundary between the Northern Andean block and the South American plate is a first‐order tectonic structure in Colombia with historically M > 7 earthquakes. However, details about individual sections of the system remain unknown. We illuminate the seismotectonic of the Algeciras fault by investigating an earthquake sequence that started on
Esteban Poveda   +6 more
wiley   +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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