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y-gRaph: An OpenOffice application to reconstruct paleostress fields from striated faults

Computers and Geosciences, 2014
y-gRaph, a user-friendly spreadsheet for reconstructing paleostress fields by means of the y–R diagram is presented. The y–R diagram is based on Bott's equation and translates the parameters of the stress ellipsoid to a XY plot representing the maximum horizontal stress orientation (σy) and the stress ratio (R), compatible with a given set of striated ...
Pablo Calvín   +2 more
exaly   +2 more sources

Paleostress fields from calcite twins in the Pyeongan Supergroup, South Korea

Island Arc, 2005
Abstract  Paleostress fields of the Late Paleozoic to Early Mesozoic Pyeongan Supergroup that is distributed along the northeastern part of the Ogcheon Belt in South Korea were investigated using the calcite strain gauge (CSG) technique. Combining the results of this study with those of other studies investigating the relationship between twin strain ...
Seong-Seung Kang, Bo-An Jang
exaly   +2 more sources

Evolution of paleostress fields and brittle deformation in Hronov-Poříčí Fault Zone, Bohemian Massif

Studia Geophysica Et Geodaetica, 2014
This paper investigates the tectonic history and describes the paleostress evolution of the Hronov-Pořici Fault Zone in the northeastern part of the Bohemian Massif. A detailed structural research has been carried out in 50 localities. Faults and fractures have been investigated and measured.
Lucie Novakova
exaly   +2 more sources

A robust approach to the calculation of paleostress fields from fault plane data: reply

Journal of Structural Geology, 1992
Algebraic methods combined with robust regression techniques are used to calculate paleostress tensors from field observations on faults. Previously, such calculations have involved least-squares regression; however such regression estimates are likely to break down and produce meaningless results if data are included that are inconsistent with the ...
Thomas M. Will, Roger Powell
exaly   +2 more sources

Compiling and correlating paleostress fields across Central Europe - A paleostress chart for northern Bavaria and adjacent areas

2021
<p>Detailed knowledge on the temporal and spatial distribution of faults and fractures not only reveals the geodynamic and tectonic evolution of the lithosphere. It is also of increasing importance with regard to economic, social, and environmental challenges such as nuclear waste disposal, gas storage, geothermal energy, natural hazards,
Florian Duschl   +5 more
openaire   +1 more source

Mechanism of the Mesozoic African rift system: Paleostress field modeling

Journal of Geodynamics, 2019
Abstract The Mesozoic African rift system is an important continental rift system related to the Central African Shear Zone. While several geological models have been discussed, the mechanism of the Mesozoic African rift system is still unclear. One model proposed that the mechanism of the Mesozoic African rift system was inherited from the Benue ...
Ge Min, Guiting Hou
openaire   +1 more source

Field relations between dikes and joints: Emplacement processes and paleostress analysis

Journal of Geophysical Research: Solid Earth, 1986
Sedimentary rocks intruded by Tertiary mafic dikes on the Colorado Plateau typically display systematic dike‐parallel joints. These closely spaced joints occur only near dikes, their spacing commonly increasing with distance from the dike contacts. Igneous breccias along some of these joints indicate that the joints are not younger than the dikes and ...
Paul T. Delaney   +3 more
openaire   +1 more source

Late Paleoproterozoic extension and a paleostress field reconstruction of the North China Craton

Tectonophysics, 2006
Abstract Mafic dyke swarms and aulacogens are major anorogenic extensional events in the Late Paleoproterozoic North China Craton (NCC). The N–NNW mafic dyke swarms are widespread in the NCC, whose ages span between 1.83 and 1.77 Ga. The similar ages and orientations of ∼ 1.8 Ga dyke swarms in the NCC demonstrate that the amalgamated NCC experienced ...
Guiting Hou   +3 more
openaire   +1 more source

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