Results 81 to 90 of about 22,020,665 (180)

A fracture rarely comes alone: associations of fractures and stylolites in analogue outcrops improve borehole image interpretations of fractured carbonate geothermal reservoirs [PDF]

Solid Earth
In this study, we present a method that uses associations of discontinuity sets to demonstrate similarities between the outcrop and the subsurface. A discontinuity association comprises up to four discontinuity sets (fractures and stylolites) that can ...
J. Hupkes, P.-O. Bruna, G. Bertotti, M. Doesburg, A. Moscariello   +4 more
doaj   +1 more source

The Relationship between Current Ground Stress and Permeability of Coal in Superimposed Zones of Multistage Tectonic Movement

Geofluids, 2019
According to the characteristics of the paleostress field and tectonic features at the key moments during tectonic movement after the formation of the no. 3 coal seam, the superimposed areas of different folding zones in the southern section of Shizhuang
Xiaoming Ni, Qifeng Jia, Yanbin Wang
doaj   +1 more source

Paleostrain and paleostress determinations in limestones from fault population analysis and mecanical twinning in calcite

, 1995
The strain tensor in limestones has been calculated using the strain-gauge technique (Croshong, 1972). This method is based in the analysis of the mechanical twinning in calcite.
García Cuevas, C., Vicente, Gerardo de, González Casado, J. M., Muñoz Martín, Alfonso   +3 more
core  

Cenozoic paleostress evolution in south central Vietnam: Implication for changing dynamics of faulting along the eastern Indochina continental margin

, 2019
The tectonics of the Indochina continental margin before and after the Neogene-Quaternary basalt eruption is poorly understood. The analysis of 1500 striated faults observed in different rocks, mostly from volcano-plutonic rocks with ages ranging from ...
Luong Thi Thu, Hoai, Nguyen V.V.
core   +1 more source

Recurring extensional and strike-slip tectonics after the Neoproterozoic collisional events in the southern Mantiqueira province

Anais da Academia Brasileira de Ciências, 2012
In Eastern South America, a series of fault-bounded sedimentary basins that crop out from Southern Uruguay to Southeastern Brazil were formed after the main collisional deformation of the Brasiliano Orogeny and record the tectonic events that affected ...
Renato P. Almeida, Maurício G. M. Santos, Antonio R.S. Fragoso-Cesar, Liliane Janikian, Gelson L. Fambrini   +4 more
doaj  

Paleostress Analysis of Chia Gara Structure in Dohuk Area, Northern Iraq

Iraqi Journal of Science, 2020
The use of Right dihedral method, Lisle graph, and Mohr diagram allows the analysis of the paleostress. Fault slip data were measured for eighteen data of two stations located within Chia Gara structure in Dohuk area in the High Folded Zone, Northern Iraq.
openaire   +1 more source

Interactions between Cenozoic tectonics and landscape dynamics in Londrina, Paraná, Brazil

Revista Brasileira de Geomorfologia
The Londrina City, located in southern Brazil, is situated on the basalt of the Paraná Igneous Province (PIP), near tectonic structures such as the Guaxupé faults and the São Jerônimo-Curiúva and São Sebastião lineaments, with a history of reactivation ...
Ana Cecília Branco Sowinski, Eduardo Salamuni, Marcilene dos Santos, Salomão Silva Calegari   +3 more
doaj   +1 more source

Geodynamic conditions for Cenozoic activation of tectonic structures in Southeastern Mongolia

Геодинамика и тектонофизика, 2018
The knowledge of the neotectonic structures inSoutheastern Mongolia, that is considerably distant from the active plate boundaries, is important for determining a source of tectonic deformation and regular features of activation in the intracontinental ...
A. V. Parfeevets, V. A. Sankov
doaj   +1 more source

1 PALEOSTRESS RECONSTRUCTION FROM CALCITE

, 2013
Paleostress reconstruction from calcite twin and fault???slip data using the multiple inverse method in the East Walanae fault zone: Implications for the Neogene contraction in South Sulawesi ...
ASRI JAYA, ASRI JAYA
core  

Mesoproterozoic Strike-Slip Faulting within the Åland Rapakivi Batholith, Southwestern Finland

Tektonika
Paleostress inversion analysis of outcrop data from brittle fault structures within the Mesoproterozoic 1.58 Ga Åland rapakivi granite, southwestern Finland, revealed two separate strike-slip faulting stages. Stage 1 is dominated by dextral slip along E–
Nicklas Nordbäck, Pietari Skyttä, Jon Engström, Nikolas Ovaskainen, Jussi Mattila, Ismo Aaltonen   +5 more
doaj   +1 more source