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Information Journal Paper

Title

NEW INVESTIGATIONS OF THE TARBUR FORMATION LITHOSTRATIGRAPHY IN THE REVIEW OF TYPE SECTION AND ITS CORRELATION WITH KUH-E TIR SECTION

Author(s)

AFGHAH M. | Issue Writer Certificate 

Pages

  183-196

Abstract

 Introduction: TARBUR FORMATION (Campanian-Maastrichtian) is acarbonecous lithostratigraphic unit which is distributed in Fars and Lurestan. Really the TARBUR FORMATION is a rudistic limestone.This formation is sandwiched between Gurpi (Santonian) and Sachun (Paleocene) Formations. Two TARBUR FORMATION stratigraphic sections in east of Shiraz are chosen which name Kuh-e Gadvan(type section) and Kuh-e Tir.Aim: In this research, biostratigraphic limits and identification of the benthic foraminifers have been studied. Also, study of the evolution of the reefs in these stratigraphic sections are the main objects of this study.Material and Methods: In order to study of introduced objects, field and lab study have been done. 430 samples of two stratigraphic sections have been sampled and prepared thin sections. With using of different sections, index foraminifers have been identified. Also based on the Danhum’s classification (1962) qualitative and quantitive microscopic study have been done.Results: Biostratigraphic limitis of the TARBUR FORMATION in Kuh-e Gadvan section  is differ from that in Kuh-e Tir section. According to the identified foraminifers, the age of the TARBUR FORMATION in Kuuh-e Gadvan is Campanian to Maastrichtian and in Kuh-e Tir section is Late Maastrichtian to Early Paleocene. New taxa of foaraminifers are identified which are include: Goupillaudina iranica, G. shirazensis, Gavelinella pertusa. TARBUR FORMATION of the both studied sections is divided into two lithostratigraphic member which are lower part (Well- bedded rusit limestone) and upper part(massive rudist limestone).Conclusion: Although reef is an ecological unit, deposition of lowermost of reef facies in the studied sections are heterochornous. Lower biostratigraphic limit between Gurpi and TARBUR FORMATIONs in Kuh-e Tir section is disconformable. Microfacies studies indicate that stabilization, colonization and diversification stages have been detected in both stratigraphic sections.

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  • Cite

    APA: Copy

    AFGHAH, M.. (2009). NEW INVESTIGATIONS OF THE TARBUR FORMATION LITHOSTRATIGRAPHY IN THE REVIEW OF TYPE SECTION AND ITS CORRELATION WITH KUH-E TIR SECTION. JOURNAL OF SCIENCES (ISLAMIC AZAD UNIVERSITY), 19(73 (GEOLOGY ISSUE)), 183-196. SID. https://sid.ir/paper/70301/en

    Vancouver: Copy

    AFGHAH M.. NEW INVESTIGATIONS OF THE TARBUR FORMATION LITHOSTRATIGRAPHY IN THE REVIEW OF TYPE SECTION AND ITS CORRELATION WITH KUH-E TIR SECTION. JOURNAL OF SCIENCES (ISLAMIC AZAD UNIVERSITY)[Internet]. 2009;19(73 (GEOLOGY ISSUE)):183-196. Available from: https://sid.ir/paper/70301/en

    IEEE: Copy

    M. AFGHAH, “NEW INVESTIGATIONS OF THE TARBUR FORMATION LITHOSTRATIGRAPHY IN THE REVIEW OF TYPE SECTION AND ITS CORRELATION WITH KUH-E TIR SECTION,” JOURNAL OF SCIENCES (ISLAMIC AZAD UNIVERSITY), vol. 19, no. 73 (GEOLOGY ISSUE), pp. 183–196, 2009, [Online]. Available: https://sid.ir/paper/70301/en

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