Results 31 to 40 of about 199,020 (315)

The spatial distribution of potholes in Uusimaa, southern Finland [PDF]

open access: yesBulletin of the Geological Society of Finland, 1996
It has been assumed, on the basis of the distribution of potholes in the bedrock near eskers, that they were eroded by subglacial meltwaters connected with the formation of eskers.
T. Jantunen
doaj   +1 more source

Shallow Composition and Structure of the Upper Part of the Exhumed San Gabriel Fault, California: Implications for Fault Processes

open access: yesTektonika, 2023
Quantifying shallow fault zone structure and characteristics is critical for accurately modeling the complex mechanical behavior of earthquakes as energy moves within faults from depth.
Kaitlyn Crouch, James Evans
doaj   +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

Scale-dependent influence of pre-existing basement shear zones on rift faulting : a case study from NE Brazil [PDF]

open access: yes, 2013
Rifting of continental crust initiates faults that are commonly influenced by pre-existing structures. We document newly identified faults cutting Precambrian units in the interior of the NE Brazilian margin to assess the effects of structural ...
Bezerra, Hilario   +6 more
core   +1 more source

Advances in fault zone hydraulic properties

open access: yes地质科技通报, 2023
Significance As a tectonic phenomenon with important hydrogeological significance, fault zones mostly show a significant impact on groundwater migration. Progress It is important to include fault zones in water resource management and evaluation.
Zheming Shi   +4 more
doaj   +1 more source

Indicators of active faults on the example of Gomel Structural Bridge

open access: yesИзвестия высших учебных заведений: Геология и разведка
Introduction. Modern geodynamic activity manifests itself in fault zones of aseismic regions as fluctuations in the fluid-gas regime, which determines the importance of gas geochemical indicators.Aim.
А. Р. Gusev
doaj   +1 more source

Experimental investigation on the pore structure and Water Inrush Evolution Law of weakly cemented fault fracture zone with different filling gradations

open access: yesGeomechanics and Geophysics for Geo-Energy and Geo-Resources, 2023
Water and mud inrush caused by fault is a geological disaster characterized by high frequency and huge destructiveness. It is important to study the evolutionary laws of water inrush in fault fracture zones with various filling types.
Yufan Wu   +7 more
doaj   +1 more source

Interpretation of Magnetic Anomalies over 2D Fault and Sheet-Type Mineralized Structures Using Very Fast Simulated Annealing Global Optimization: An Understanding of Uncertainty and Geological Implications

open access: yesLithosphere, 2021
Identification of intraterrane dislocation zones and associated mineralized bodies is of immense importance in exploration geophysics. Understanding such structures from geophysical anomalies is challenging and cumbersome.
Arkoprovo Biswas, Khushwant Rao
doaj   +1 more source

Permeability evolution across carbonate hosted normal fault zones [PDF]

open access: yes, 2016
Acknowledgements: The authors would like to thank Total E&P and BG Group for project funding and support, and the Industry Technology Facilitator for facilitating the collaborative development (grant number 3322PSD).
Haines, Thomas J.   +3 more
core   +1 more source

Preliminary study on the Late Quaternary activity of important active fault zones along the Yunnan-Tibet railway

open access: yes地震科学进展
The Yunnan-Tibet railway is located in the southeastern edge of the Tibetan Plateau, where tectonic plates collide and the terrain rapidly changes. Along the line, active faults develops, earthquakes occur frequently, and the intensity of earthquakes is ...
Xianbing Zhang   +6 more
doaj   +1 more source

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