Present-day stress inversion from a single near-surface fault: A novel mathematical approach

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985891%3A_____%2F18%3A00496411" target="_blank" >RIV/67985891:_____/18:00496411 - isvavai.cz</a>

Alternative codes found

RIV/00216224:14310/18:00108874

Result on the web

<a href="http://dx.doi.org/10.1016/j.jsg.2018.09.013" target="_blank" >http://dx.doi.org/10.1016/j.jsg.2018.09.013</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jsg.2018.09.013" target="_blank" >10.1016/j.jsg.2018.09.013</a>

Result language

angličtina

Original language name

Present-day stress inversion from a single near-surface fault: A novel mathematical approach

Original language description

A novel numerical approach enables determining contemporary stress states at a single fault near the ground surface using three dimensional fault displacement data, i.e. displacements that include movement component perpendicular to the fault surface. This approach is restricted to specific near-surface conditions and is based on three assumptions: (i) the near-surface faults contain apertures and the blocks can move in all directions at a sub-millimetric scale, so the movement is not restricted only to the fault plane, thus the stress vector (traction) acting on the fault surface has the same direction as the fault displacement vector, (ii) the isotropic component of the stress tensor near the ground surface is negligible, and (iii) one of the principal stress orientations must be vertical as being close to the ground surface. These generalizations enable distinct formula simplification and the reduced stress tensor calculation. Input data for the mathematical solution are the orientation of the fault surface (i.e., the down-directed fault surface normal) and the fault displacement (i.e., the vector of the hanging wall displacement). The orientation of the principal stresses and the shape parameter of the stress ellipsoid are the outputs of the method. We demonstrate the approach on a single fault reactivation event on 7 November 2014 in Obir Cave near the Periadriatic Fault in the Eastern Alps.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10505 - Geology

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Structural Geology

ISSN

0191-8141

e-ISSN

—

Volume of the periodical

117

Issue of the periodical within the volume

December

Country of publishing house

GB - UNITED KINGDOM

Number of pages

5

Pages from-to

163-167

UT code for WoS article

000453112000012

EID of the result in the Scopus database

2-s2.0-85054014967