Results 71 to 80 of about 75,816 (207)

Application of Freezing Method in the Geology Disaster Treatment of Fault Fracture Zone

open access: yesDEStech Transactions on Engineering and Technology Research, 2017
Fault rupture zone inrush of water and mud is the most serious geological disaster of the tunnel and underground engineering. The disaster has a direct threat to the progress of engineering and the safety of builders. The Yonglian tunnel appears to multiple inrush of water and mud disaster in the process of construction Geological environment and ...
Deming Wang   +3 more
openaire   +2 more sources

Progress and development of volume stimulation techniques

open access: yesPetroleum Exploration and Development, 2018
Based on the theoretical study and field application of volume stimulation in horizontal wells over the past 10 years, the core connotation of volume stimulation was further interpreted.
Yun XU   +7 more
doaj   +1 more source

Middle to Late Miocene Contractional Deformation in Costa Rica Triggered by Plate Geodynamics [PDF]

open access: yes, 2017
Contractional deformation in Costa Rica is usually attributed to the subduction of the aseismic Cocos Ridge. In this work, we review the evidences for contraction in the middle to late Miocene, prior to the arrival of the Cocos Ridge at the Middle ...
Cascante, Monserrat   +8 more
core   +1 more source

3D geological modeling of strongly heterogeneous dual-medium deep carbonate reservoirs: A case study of Feixianguan-Changxing Formations in Puguang Gas Field

open access: yesYouqi dizhi yu caishoulu
The carbonate reservoir in Puguang Gas Field has the characteristics of large burial depth, developed reef-flat facies, poor matrix properties, widespread development of natural fractures, and strong heterogeneity.
LI Hui   +5 more
doaj   +1 more source

Catastrophic ice lake collapse in Aram Chaos, Mars

open access: yes, 2014
Hesperian chaotic terrains have been recognized as the source of outflow channels formed by catastrophic outflows. Four main scenarios have been proposed for the formation of chaotic terrains that involve different amounts of water and single or multiple
Kleinhans, Maarten G.   +3 more
core   +1 more source

Simulation of rock salt dissolution and its impact on land subsidence [PDF]

open access: yes, 2013
Extensive land subsidence can occur due to subsurface dissolution of evaporites such as halite and gypsum. This paper explores techniques to simulate the salt dissolution forming an intrastratal karst, which is embedded in a sequence of carbonates, marls,
Huggenberger, P.   +3 more
core   +2 more sources

Geological features and marble production qualities of Western Turkey [PDF]

open access: yes, 2019
Purpose. Isparta Angle occurs along the Mesozoic carbonate axis. Carbonated rocks forming the Taurus belt are continuous with allochthonous and autochthonous features.
Leventeli, Y, Ozcelik, M
core   +1 more source

Evidence for Seismogenic Hydrogen Gas, a Potential Microbial Energy Source on Earth and Mars [PDF]

open access: yes, 2016
M thanks the STFC for a PhD studentship and the NASA Astrobiology Institute for additional funding (NNAI13AA90A; Foundations of Complex Life, Evolution, Preservation and Detection on Earth and Beyond).
Blamey, Nigel J F   +2 more
core   +1 more source

Zircon dissolution in a ductile shear zone, Monte Rosa granite gneiss, northern Italy [PDF]

open access: yes, 2008
The sizes, distributions and shapes of zircon grains within variably deformed granite gneiss from the western Alps have been studied. Zircon shows numerous indicators of a metamorphic response in both the host gneiss and a 5 cm wide continuous ductile ...
Dal Piaz   +14 more
core   +1 more source

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