TY - JOUR
T1 - Factors affecting finite strain estimation in low-grade, low-strain clastic rocks
AU - Pastor-Galán, Daniel
AU - Gutiérrez-Alonso, Gabriel
AU - Meere, Patrick A.
AU - Mulchrone, Kieran F.
N1 - Funding Information:
Critical and constructive reviews by Richard Lisle and an anonymous reviewer have helped to improve the manuscript. Financial support was supplied by Research Project ODRE (“Oroclinales Delaminación Relaciones y Efectos”) No. CGL2006-00902, from the Spanish Ministry of Science and Innovation and an ACPI grant from the Junta de Castilla y León.
PY - 2009/12
Y1 - 2009/12
N2 - The computer strain analysis methods SAPE, MRL and DTNNM have permitted the characterization of finite strain in two different regions with contrasting geodynamic scenarios; (1) the Talas Ala Tau (Tien Shan, Kyrgyzs Republic) and (2) the Somiedo Nappe and Narcea Antiform (Cantabrian to West Asturian-Leonese Zone boundary, Variscan Belt, NW of Iberia). The performed analyses have revealed low-strain values and the regional strain trend in both studied areas. This study also investigates the relationship between lithology (grain size and percentage of matrix) and strain estimates the two methodologies used. The results show that these methods are comparable and the absence of significant finite strain lithological control in rocks deformed under low metamorphic and low-strain conditions.
AB - The computer strain analysis methods SAPE, MRL and DTNNM have permitted the characterization of finite strain in two different regions with contrasting geodynamic scenarios; (1) the Talas Ala Tau (Tien Shan, Kyrgyzs Republic) and (2) the Somiedo Nappe and Narcea Antiform (Cantabrian to West Asturian-Leonese Zone boundary, Variscan Belt, NW of Iberia). The performed analyses have revealed low-strain values and the regional strain trend in both studied areas. This study also investigates the relationship between lithology (grain size and percentage of matrix) and strain estimates the two methodologies used. The results show that these methods are comparable and the absence of significant finite strain lithological control in rocks deformed under low metamorphic and low-strain conditions.
KW - Cantabrian Zone
KW - DTNNM
KW - Mean radial length
KW - SAPE
KW - Strain analysis
KW - Talas Ala Tau
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U2 - 10.1016/j.jsg.2009.08.005
DO - 10.1016/j.jsg.2009.08.005
M3 - Article
AN - SCOPUS:70449726458
SN - 0191-8141
VL - 31
SP - 1586
EP - 1596
JO - Journal of Structural Geology
JF - Journal of Structural Geology
IS - 12
ER -