Results 111 to 120 of about 76,051 (383)

Modeling singular mineralization processes due to fluid pressure fluctuations [PDF]

open access: yes, 2020
Mineralization in the Earth's crust can be regarded as a singular process resulting in large amounts of mass accumulation and element enrichment over short time or space scales. The elemental concentrations modeled by fractals and multifractals show self-
Clarke, KC   +4 more
core  

Parsimonious numerical modelling of deep geothermal reservoirs [PDF]

open access: yes, 2015
Numerical modelling has been undertaken to help improve understanding of a deep geothermal system being considered for development in the vicinity of Eastgate (Weardale, County Durham, UK).
Fairs, Tim H.   +2 more
core   +1 more source

Selection of favorable shale lithofacies based on an integrated geology and engineering approach: a case study of Lishu Fault Depression in Songliao Basin

open access: yesShiyou shiyan dizhi
The Lishu Fault Depression in the Songliao Basin holds significant potential for shale gas exploration and development. This study took the shale in the Yingcheng Formation of the Lishu Fault Depression as the research subject.
Xuan LIN   +10 more
doaj   +1 more source

Insights into the genesis of thick halite in the Kuqa Depression (Tarim Basin, China): New mineralogical, lithological and geochemical evidence

open access: yesThe Depositional Record, EarlyView.
Halite thickness in Mbr 2 of the Kumugeliemu can reach 1000 m. The thick halite is associated with sedimentary rock with shallow water fabrics. The thick halite was formed in a shallow‐sea water environment. The ‘Multiple transgression‐salt‐forming’ model was established.
Peng Qin, Dakang Zhong, Zhonggui Hu
wiley   +1 more source

Mechanical properties of granulite from Horní Bory in Bohemian massif [PDF]

open access: yes, 2019
Granulite represents one of the favourite rock types for the construction of an underground nuclear waste repository in the Czech Republic. Granulite from the Bohemian Massif (locality Horní Bory) was investigated in this study, with a special focus ...
Blümel, Manfred   +4 more
core   +1 more source

Determining the REV for Fracture Rock Mass Based on Seepage Theory

open access: yesGeofluids, 2017
Seepage problems of the fractured rock mass have always been a heated topic within hydrogeology and engineering geology. The equivalent porous medium model method is the main method in the study of the seepage of the fractured rock mass and its ...
Lili Zhang, Lu Xia, Qingchun Yu
doaj   +1 more source

Modeling Crack Patterns by Modified STIT Tessellations

open access: yesImage Analysis and Stereology, 2020
Random planar tessellations are presented which are generated by subsequent division of their polygonal cells. The purpose is to develop parametric models for crack patterns appearing at length scales which can change by orders of magnitude in areas such
Roberto León   +3 more
doaj   +1 more source

Atomistic Simulations of Nanotube Fracture [PDF]

open access: yes, 2002
The fracture of carbon nanotubes is studied by atomistic simulations. The fracture behavior is found to be almost independent of the separation energy and to depend primarily on the inflection point in the interatomic potential. The rangle of fracture strians compares well with experimental results, but predicted range of fracture stresses is marketly ...
arxiv   +1 more source

Effects of elevated ground temperatures on properties of cement grouts for deep rock grouting

open access: yesDeep Underground Science and Engineering, EarlyView.
When the temperature is up to 35°C, significant improvement in rheological parameters, acceleration of grout setting, and an increase in the rheological time dependence of thick cement grout can occur, but there may be a slight effect on the initial grout flowability and the nature of shear thinning.
Zhipeng Xu   +4 more
wiley   +1 more source

Study on Mine Earthquake Prediction Based on Numerical Simulation of Rock Fracture Evolution

open access: yesEnergy Science & Engineering
The deformation and instability of overlying strata is the root cause of roof dynamic disasters. Therefore, it is necessary to study the geomechanical behavior of overlying strata and the evolution law of three‐dimensional fracture morphology for ...
Xiu‐Feng Zhang   +10 more
doaj   +1 more source

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