THE EFFECT OF MECHANICAL STRATIGRAPHY ON DEFORMATION STYLE IN LORESTAN SUBZONE, ZAGROS FOLD-THRUST BELT

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EFTEKHARI ABAS; YASAGHI ALI

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Journal: JOURNAL OF SCIENCE (UNIVERSITY OF TEHRAN) (JSUT) Year:2009 | Volume:34 | Issue:4 (SECTION: GEOLOGY) Page(s): 103-112

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Title

THE EFFECT OF MECHANICAL STRATIGRAPHY ON DEFORMATION STYLE IN LORESTAN SUBZONE, ZAGROS FOLD-THRUST BELT

Author(s)

EFTEKHARI ABAS | YASAGHI ALI | Issue Writer Certificate

Keywords

LORESTAN ZONEQ3

ZAGROS FOLD-THRUST BELTQ3

DEFONNATION STYLEQ3

MECHANICAL STRATIGRAPHYQ3

Abstract

Structural analysis of folds across the western part of the LORESTAN ZONE in ZAGROS FOLD-THRUST BELT showed that geometry of the folds are varies in different structural levels and leads to change in the folds style to depth. Competency contrast of rock units is the main controlling parameter of such a diver's behavior. Rock units with lower competency, as detachment surfaces, play a significant role in deformation style and its diversity down to depth. The Pabdeh, Gurpi and Illam Formation which are overlaying on incompetent Garu Formation compose outcrops of the study area.It is interpreted that the Garu and Pabdeh Formations are the major detachment zones control fold style across the study area. Geometric test of the folds constrain the effect of the detachment zones on variation of deformation style between their upper and lower rock units. In such a manner that folds in lower units to these detachments have larger wavelength comparing to ones developed within the overlying units. Similarly, strain partitioning within the whole sequence between competent and incompetent rock units demonstrate that change in geometry and folding style from surface to depth, in LORESTAN ZONE, is mainly affected by diversity in mechanical behavior of rock units or in other words the effect of MECHANICAL STRATIGRAPHY.

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APA: Copy

EFTEKHARI, ABAS, & YASAGHI, ALI. (2009). THE EFFECT OF MECHANICAL STRATIGRAPHY ON DEFORMATION STYLE IN LORESTAN SUBZONE, ZAGROS FOLD-THRUST BELT. JOURNAL OF SCIENCE (UNIVERSITY OF TEHRAN) (JSUT), 34(4 (SECTION: GEOLOGY)), 103-112. SID. https://sid.ir/paper/2283/en

Vancouver: Copy

EFTEKHARI ABAS, YASAGHI ALI. THE EFFECT OF MECHANICAL STRATIGRAPHY ON DEFORMATION STYLE IN LORESTAN SUBZONE, ZAGROS FOLD-THRUST BELT. JOURNAL OF SCIENCE (UNIVERSITY OF TEHRAN) (JSUT)[Internet]. 2009;34(4 (SECTION: GEOLOGY)):103-112. Available from: https://sid.ir/paper/2283/en

IEEE: Copy

ABAS EFTEKHARI, and ALI YASAGHI, “THE EFFECT OF MECHANICAL STRATIGRAPHY ON DEFORMATION STYLE IN LORESTAN SUBZONE, ZAGROS FOLD-THRUST BELT,” JOURNAL OF SCIENCE (UNIVERSITY OF TEHRAN) (JSUT), vol. 34, no. 4 (SECTION: GEOLOGY), pp. 103–112, 2009, [Online]. Available: https://sid.ir/paper/2283/en

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