An analytical approach for determining strain ellipsoids from measurements on planar surfaces

A new method is proposed to determine strain ellipsoids from measurements made on planar surfaces. It is similar in theory to that of Robin, P.-Y.F., [2002. Determination of fabric and strain ellipsoids from measured sectional ellipses – theory. Journal of Structural Geology 24, 531–544], but is mor...

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Bibliographic Details
Published inJournal of structural geology Vol. 30; no. 4; pp. 539 - 546
Main Author Shan, Yehua
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.04.2008
Subjects
Estimation
Sectional measurements
Strain ellipsoids
Strain markers
Sectional measurements
Strain markers
Strain ellipsoids
Estimation
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Summary:A new method is proposed to determine strain ellipsoids from measurements made on planar surfaces. It is similar in theory to that of Robin, P.-Y.F., [2002. Determination of fabric and strain ellipsoids from measured sectional ellipses – theory. Journal of Structural Geology 24, 531–544], but is more flexible and hence more applicable because it can incorporate different kinds of strain measurements, especially when only the pitches of the long/short axes of strain ellipses are measured on planar surfaces. It is not necessary to estimate both the relative and absolute strain ellipsoids at the same time, as Robin, P.-Y.F., [2002. Determination of fabric and strain ellipsoids from measured sectional ellipses – theory. Journal of Structural Geology 24, 531–544] and others did. The former may be estimated before the latter. The feasibility of the proposed method is demonstrated by three artificial examples and one real example.
ISSN:0191-8141
1873-1201
DOI:10.1016/j.jsg.2006.12.004