NEW LITHOSTRATIGRAPHIC AND BIO STRATIGRAPHIC FINDING ON THE FARROKHI FORMATION IN BOUTH WEST OF KHUR, CENTRAL IRAN

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SEIF H.; MAJIDIFARD M.R.; MOHTAT T.

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Journal: GEOSCIENCES Year:2015 | Volume:25 | Issue:97 Page(s): 197-210

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Title

NEW LITHOSTRATIGRAPHIC AND BIO STRATIGRAPHIC FINDING ON THE FARROKHI FORMATION IN BOUTH WEST OF KHUR, CENTRAL IRAN

Author(s)

SEIF H. | MAJIDIFARD M.R. | MOHTAT T. | Issue Writer Certificate

Keywords

FARROKHI FORMATIONQ1

MAASTRICHT IANQ2

CENTRAL IRANQ2

KQ2

PG BOUNDARYQ2

KHURQ2

Abstract

The FARROKHI FORMATION in 15 Km southwest of Khur with a thickness of up to 117m consists of marl and limestone with MAASTRICHT IAN age. In this section, the FARROKHI FORMATION disconformably overlies the Haftoman formation below and the Chupanan formation above. In the present study, 87 genera and 103 species have been recognized. Based on foraminifera, the FARROKHI FORMATION ranges from the MAASTRICHT IAN and 3 biozones in the rock unit 1 of the formation have been recognized: (1) Contusotruncana contuse Partial range zone (CF6), indexing Early MAASTRICHT IAN. (2) Pseudotextularia intermedia Partial range zone (CF5), index for late Early MAASTRICHT IAN index and (3) Racemiguembelin fructicosa Taxon Range Zone (CF4), an index for early Late MAASTRICHT IAN. The FARROKHI FORMATION can be subdivided into four rock units which are composed of marl and marly limestone. In addition, the FARROKHI FORMATION fauna contains ostracods and high abundance of invertebrate as diverse species of brachiopods, echinoderms and bivalves with rare fragments of ammonites. The K/PG BOUNDARY is in this section paraconform and can be compared with boundary of the Farrokhi and Chupanan formations. The evidence of paraconformity is a gap of Early Paleocene and changes in lithfacies. The FARROKHI FORMATION is carbonate and it is parts of a carbonate system consisting of a platform and the adjacent slope.

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APA: Copy

SEIF, H., MAJIDIFARD, M.R., & MOHTAT, T.. (2015). NEW LITHOSTRATIGRAPHIC AND BIO STRATIGRAPHIC FINDING ON THE FARROKHI FORMATION IN BOUTH WEST OF KHUR, CENTRAL IRAN. GEOSCIENCES, 25(97), 197-210. SID. https://sid.ir/paper/32376/en

Vancouver: Copy

SEIF H., MAJIDIFARD M.R., MOHTAT T.. NEW LITHOSTRATIGRAPHIC AND BIO STRATIGRAPHIC FINDING ON THE FARROKHI FORMATION IN BOUTH WEST OF KHUR, CENTRAL IRAN. GEOSCIENCES[Internet]. 2015;25(97):197-210. Available from: https://sid.ir/paper/32376/en

IEEE: Copy

H. SEIF, M.R. MAJIDIFARD, and T. MOHTAT, “NEW LITHOSTRATIGRAPHIC AND BIO STRATIGRAPHIC FINDING ON THE FARROKHI FORMATION IN BOUTH WEST OF KHUR, CENTRAL IRAN,” GEOSCIENCES, vol. 25, no. 97, pp. 197–210, 2015, [Online]. Available: https://sid.ir/paper/32376/en

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