SEDIMENTARY ENVIRONMENTS AND SEQUENCE STRATIGRAPHY OF BASAL QUARTZITE OF THE MILA GROUP (FASHAM FORMATION), CENTRAL ALBORZ

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BAYETGOLL A.; MOUSSAVI HARAMI R.; MAHBOUBI A.

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Journal: SEDIMENTARY FACIES Year:2015 | Volume:8 | Issue:1 Page(s): 1-28

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Title

SEDIMENTARY ENVIRONMENTS AND SEQUENCE STRATIGRAPHY OF BASAL QUARTZITE OF THE MILA GROUP (FASHAM FORMATION), CENTRAL ALBORZ

Author(s)

BAYETGOLL A. | MOUSSAVI HARAMI R. | MAHBOUBI A. | Issue Writer Certificate

Keywords

FASHAM FORMATIONQ2

SEDIMENTARY ENVIRONMENTQ2

SEQUENCE STRATIGRAPHYQ2

MIDDLE CAMBRIANQ3

ESTUARINEQ3

INITIAL FLOODINGQ2

Abstract

Introduction: Silisiclastic deposits of basal Quartzite of the Mila Group in Central Alborz, called Faham Formation in this research, were studied in Shahmirzad, Tueh-Darvar, Mila-Kuh and Deh-Molla sections in order to interpret depositional environments and reconstruct the sequence stratigraphic framework. Based on facies characteristics and stratal geometries, the size of bedforms, sedimentary structures and their complex arrangement, erosional base, predominantly sandy grain size, the height of the sand bodies together with evidences of the tidal action such as extensive cross-stratified sandstone, tidal bundles, reactivation surfaces and mud drapes, the siliciclastic successions of the FASHAM FORMATION are interpreted to be deposited in a tide-dominated open-mouthed ESTUARINE environment. During the initial inundation of the present-day Alborz region in the early MIDDLE CAMBRIAN time, siliciclastic deposits formed in open-mouthed ESTUARINE. Basal sequence of the MIDDLE CAMBRIAN deposits is composed of a transgressive systems tract (TST) comprising the basal siliciclastic-dominated succession of the FASHAM FORMATION and a carbonate-dominated highstand systems tract (HST) within the lower part of the Deh-Sufiyan Formation. It records the drowning of the terrigeneous sources and subsequent establishment of the carbonate system. Based on sequential infilling model for open estuaries during transgression and INITIAL FLOODING, tidal flats were developed along the margin of the sea and sandy dunes formed along the central part of the estuary and their lower surface was interpreted as a subaerial unconformity formed due to lowstand erosion. The last stage of infilling involves the development of sand bars that gradually migrated towards the open sea until they completely occupied the mouth of the open estuary...

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APA: Copy

BAYETGOLL, A., MOUSSAVI HARAMI, R., & MAHBOUBI, A.. (2015). SEDIMENTARY ENVIRONMENTS AND SEQUENCE STRATIGRAPHY OF BASAL QUARTZITE OF THE MILA GROUP (FASHAM FORMATION), CENTRAL ALBORZ. SEDIMENTARY FACIES, 8(1), 1-28. SID. https://sid.ir/paper/199822/en

Vancouver: Copy

BAYETGOLL A., MOUSSAVI HARAMI R., MAHBOUBI A.. SEDIMENTARY ENVIRONMENTS AND SEQUENCE STRATIGRAPHY OF BASAL QUARTZITE OF THE MILA GROUP (FASHAM FORMATION), CENTRAL ALBORZ. SEDIMENTARY FACIES[Internet]. 2015;8(1):1-28. Available from: https://sid.ir/paper/199822/en

IEEE: Copy

A. BAYETGOLL, R. MOUSSAVI HARAMI, and A. MAHBOUBI, “SEDIMENTARY ENVIRONMENTS AND SEQUENCE STRATIGRAPHY OF BASAL QUARTZITE OF THE MILA GROUP (FASHAM FORMATION), CENTRAL ALBORZ,” SEDIMENTARY FACIES, vol. 8, no. 1, pp. 1–28, 2015, [Online]. Available: https://sid.ir/paper/199822/en

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