Results 31 to 40 of about 139,956 (281)

Soil Depth Prediction Model Using Terrain Attributes in Gangwon-do, South Korea

open access: yesApplied Sciences, 2023
Soil depth is a crucial parameter in slope stability analysis in mountainous areas. The drilling survey is the most reliable method for determining soil depth, but it requires a high cost for the vast geographical area.
Jinwook Kim, Hosung Shin
doaj   +1 more source

Simulation of diffusive solute transport in heterogeneous porous media with dipping anisotropy

open access: yesFrontiers in Water, 2022
Dipping anisotropy is a common feature in heterogeneous porous media that can substantially affect solute transport. For problems with complex geometry the influence of dipping anisotropy must be analyzed using numerical models, since suitable analytical
Danyang Su   +3 more
doaj   +1 more source

Strength and energy consumption of inherently anisotropic rocks at failure [PDF]

open access: yes, 2021
Using a discrete-element approach and a bonding interaction law, we model and test crushable inherently anisotropic structures reminiscent of the layering found in sedimentary and metamorphic rocks. By systematically modifying the level of inherent anisotropy, we characterize the evolution of the failure strength of circular rock samples discretized ...
arxiv   +1 more source

A new stylolite classification scheme to estimate compaction and local permeability variations [PDF]

open access: yes, 2017
This study was carried out within the framework of DGMK (German Society for Petroleum and Coal Science and Technology) research project 718 “Mineral Vein Dynamics Modeling”, which is funded by the companies ExxonMobil Production Deutschland GmbH, GDF ...
Beaudoin, Nicolas   +5 more
core   +1 more source

Integrated geophysical and geological investigations applied to sedimentary rock mass characterization

open access: yesAnnals of Geophysics, 2008
The Salento Peninsula (south-eastern Italy) is characterized by sedimentary rocks. The carbonatic nature of the rocks means they are affected by karst phenomena, forming such features as sinkholes, collapsed dolines and caverns, as a result of chemical ...
S. Negri   +4 more
doaj   +1 more source

Evaluation of Gas Migration and Rock Damage Characteristics for Underground Nuclear Waste Storage Based on a Coupled Model

open access: yesScience and Technology of Nuclear Installations, 2018
In the deep geological repository of nuclear waste, the corrosion of waste generates gas, which increases the storage pressure, changes the properties of the rock strata, and affects the stability of nuclear waste repository.
Yi Xue   +4 more
doaj   +1 more source

Worldwide distribution of continental rock lithology: Implications for the atmospheric/soil CO2 uptake by continental weathering and alkalinity river transport to the oceans [PDF]

open access: yes, 2003
The silicate rock weathering followed by the formation of carbonate rocks in the ocean, transfers CO2 from the atmosphere to the lithosphere. This CO2 uptake plays a major role in the regulation of atmospheric CO2 concentrations at the geologic ...
Amiotte Suchet, Philippe   +2 more
core   +2 more sources

A new method of lithologic identification and distribution characteristics of fine - grained sediments: A case study in southwest of Ordos Basin, China

open access: yesOpen Geosciences, 2019
Lithologic identification is critical for studying fine - grained sediments, which further elucidates sedimentary environment, and formation. The oil - bearing Chang 7 Section of the Yanchang Formation in Ordos Basin contains thick dark mudstone with a ...
Lyu Qiqi   +7 more
doaj   +1 more source

Rock typing and reservoir zonation of the Asmari Formation in a gas field, Persian Gulf [PDF]

open access: yesInternational Journal of Mining and Geo-Engineering
In this study, the geological and petrophysical methods were combined to investigate the reservoir characteristics of the Asmari Formation in one of the gas fields in the Persian Gulf.
Behrooz Esrafili-Dizaji
doaj   +1 more source

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