Results 11 to 20 of about 178,309 (310)

Are spherulitic lacustrine carbonates an expression of large-scale mineral carbonation? : A case study from the East Kirkton Limestone, Scotland [PDF]

open access: yes, 2018
BP Exploration Co. is thanked for funding, and particularly the Carbonate Team for supporting this research and for fruitful discussions. West Lothian Council and Scottish Natural Heritage are thanked for allowing access and permission for sampling the ...
Billing, Ian   +11 more
core   +1 more source

Numerical simulation inversion of creep laws of composite salt layers based on reaming while drilling

open access: yesFrontiers in Earth Science, 2023
The composite salt layer of the Kuqa piedmont zone in the Tarim Basin is characterized by deep burial, complex tectonic stress, and interbedding between salt rocks and mudstone.
Shiyuan Li   +8 more
doaj   +1 more source

Estimation of mechanical characteristics of salt rock crystals based on the mathematical model of nanoindentation using scanning probe microscope Dimension Icon

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2019
The scanning probe microscope Dimension Icon is used both to assess the relief of the sample surface and to obtain the force response of the sample during the interaction of the cantilever (indenter of special shape, located at the end of the elastic ...
Valery Nagimovich Aptukov   +1 more
doaj   +1 more source

Nonlinear criteria and the influence of the average principal stress on rocks destruction [PDF]

open access: yes, 2018
Purpose. Consider possible series methods of Mohr-Coulomb nonlinear criterion that takes into account stresses in the plane of fracture. Investigate the influence of the average principal stress on rocks destruction when cylinder modeling under axial and
Olovyannyy, A
core   +1 more source

Estimation of corrosion resistance of curing mixtures based on coal-bearing rocks from Western Donbass [PDF]

open access: yes, 2011
Purpose. Substantiation of possible use of coal-bearing rocks as a replacement for a part of the filler in the preparation of shotcrete for lining of mine workings in the conditions of mineralized mine water. Methods.
Bagcivan, N.   +8 more
core   +4 more sources

Variations of physico-mechanical, mineralogical and geochemical properties of marble under the influence of weathering [PDF]

open access: yes, 2019
Purpose. To investigate the physico-mechanical, mineralogical and geochemical properties variations of Igbeti marble, south-western Nigeria under the influence of weathering. Methods. About twenty representative samples were collected at a varying depth
Lawal, A.I., Ogunsola, N.O., Saliu, M.A.
core   +1 more source

Numerical experiments concerning long-term deformation of rock samples [PDF]

open access: yes, 2019
Purpose is to develop modeling methods of long-term rock sample deformation and failure under various loading conditions with the help of finite-element method of failure rock modeling (DESTROCK-FE). Methods.
Chantsev, V, Olovyannyy, A
core   +1 more source

Salt: The Rock That Flows

open access: yesFrontiers for Young Minds, 2023
Salt is a substance with many uses, including as a condiment for our food. Salt is also a rock, and it can be found underground in many places around the world. What makes rock salt fascinating is that, over hundreds to millions of years, it is a rock that flows!
Oscar Fernandez, Mark G. Rowan
openaire   +1 more source

Spring and surface water quality of the Cyprus ophiolites [PDF]

open access: yes, 2002
A survey of surface, spring and borehole waters associated with the ophiolite rocks of Cyprus shows five broad water types (1) Mg-HCO3, (2) Na-SO4-Cl-HCO3, (3) Na-Ca-Cl-SO4-OH-CO3, (4) Na-Cl-SO4 and (5) Ca-SO4.
Neal, C., Shand, P.
core   +2 more sources

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