STRUCTURAL ANALYSIS OF ZANGUL AND POSHT-E-JANGAL ANTICLINES IN NW OF LORESTAN ZONE, ZAGROS FOLD-THRUST BELT, FOR ESTIMATION OF OIL CLOSURE ON DEHRAM HORIZON

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DERIKVAND S.; YASSAGHI A.

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Paper Information

Journal: JOURNAL OF SCIENCE (KHARAZMI UNIVERSITY) Year:2010 | Volume:10 | Issue:2 Page(s): 765-782

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Title

STRUCTURAL ANALYSIS OF ZANGUL AND POSHT-E-JANGAL ANTICLINES IN NW OF LORESTAN ZONE, ZAGROS FOLD-THRUST BELT, FOR ESTIMATION OF OIL CLOSURE ON DEHRAM HORIZON

Author(s)

DERIKVAND S. | YASSAGHI A. | Issue Writer Certificate

Keywords

OIL CLOSUREQ3

DETACHMENT ZONEQ3

STRUCTURAL ANALYSIS OF ANTICLINESQ3

LORESTAN ZONEQ3

ZAGROS FOLD-THRUST BELTQ3

Abstract

Zangul and Posht-e-Jangal anticlines are located at the WNW of Khorram Abad city, in LORESTAN ZONE of Zagros fold- thrust belt (ZF-TB). Generally, folds in the ZF-TB are governed by thrust faulting. Therefore, the structural geometry of the folds, influence on the potential of reservoir structures, is controlled by thrust faulting which are almost blind and have no surface evidences. In this study structural geometry of the Zangul and Posht-e-Jangal anticlines is carried out and their potential of the hydrocarbon reservoir is evaluated. For this purpose three structural traverses perpendicular to the fold axis are mapped and studied in details. Based on these mapping, three structural cross sections across the anticlines are constructed. Geometrical analysis of the anticlines showed that they have geometry similar to the geometry of faulted detachment folds. The main detachment surface responsible for folding of the Zangul and Posht Jangal anticlines are proposed to be a deep detachment surface in Cambrian shales. However, evidences of younger folding as “Rabbit ear” and Pseudo similar folds on the anticlines’ limbs show that median detachment surfaces are also effective. Garu Formation which is one of the basic median detachment surfaces in the LORESTAN ZONE is consider as the main factor on development of these folds in the limbs of the major anticlines. This detachment surface also controls the style of folding at surface from the structures of in the regional oil fields at depth which caused displacement on the location of their hinge zone from surface to depth. From the constructed structural contour map of the anticlines, vertical and horizontal closures of the Zangul and Posht-e-Jangal anticlines are estimated.

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APA: Copy

DERIKVAND, S., & YASSAGHI, A.. (2010). STRUCTURAL ANALYSIS OF ZANGUL AND POSHT-E-JANGAL ANTICLINES IN NW OF LORESTAN ZONE, ZAGROS FOLD-THRUST BELT, FOR ESTIMATION OF OIL CLOSURE ON DEHRAM HORIZON. JOURNAL OF SCIENCE (KHARAZMI UNIVERSITY), 10(2), 765-782. SID. https://sid.ir/paper/44053/en

Vancouver: Copy

DERIKVAND S., YASSAGHI A.. STRUCTURAL ANALYSIS OF ZANGUL AND POSHT-E-JANGAL ANTICLINES IN NW OF LORESTAN ZONE, ZAGROS FOLD-THRUST BELT, FOR ESTIMATION OF OIL CLOSURE ON DEHRAM HORIZON. JOURNAL OF SCIENCE (KHARAZMI UNIVERSITY)[Internet]. 2010;10(2):765-782. Available from: https://sid.ir/paper/44053/en

IEEE: Copy

S. DERIKVAND, and A. YASSAGHI, “STRUCTURAL ANALYSIS OF ZANGUL AND POSHT-E-JANGAL ANTICLINES IN NW OF LORESTAN ZONE, ZAGROS FOLD-THRUST BELT, FOR ESTIMATION OF OIL CLOSURE ON DEHRAM HORIZON,” JOURNAL OF SCIENCE (KHARAZMI UNIVERSITY), vol. 10, no. 2, pp. 765–782, 2010, [Online]. Available: https://sid.ir/paper/44053/en

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