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Integrated Sequence Stratigraphy of the Middle Jurassic (Bajocian-Callovian) Chiltan Formation in the Lower Indus Basin, Pakistan

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Paleobiodiversity and Tectono-Sedimentary Records in the Mediterranean Tethys and Related Eastern Areas (CAJG 2018)

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Abstract

Detailed sedimentological analysis of the Jurassic (Bajocian-Callovian) Chiltan Formation has been accomplished from the Middle Indus Basin, Pakistan. We have discriminated six different microfacies that deciphered a carbonate barrier-inlet shelf platform depositional setting. These facies represented the lagoonal tidal inlets (CHF 1 facies), carbonate shoals (CHF 2 facies), fore shore (CHF 3 facies), supra tidal (CHF 4 facies), wash over fans (CHF 5) and near shore (CHF 6 facies) setting. The record of the smaller benthic foraminifera (Lenticulina subalta, lenticulina vobulus and planularia protracta) confirms a middle Jurassic (Bajocian-Callovian) age of the unit. This biostratigraphic calibration suggests that the deposition of the Chiltan Formation correspond to a second order cycle (17 Ma) which encompasses a composite transgressive systems tract and various third order cycles and systems tracts. The long and short term sea level fluctuations show a close match with global sea level curve.

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Reference

  1. Haq, B.U., Hardenbol, J., Vail, P.R.: Chronology of fluctuating sea levels since the Triassic. Science 2(35), 1153–1165 (1987)

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Authors and Affiliations

  1. Department of Geology, University of Peshawar, KPK, Peshawar, 25000, Pakistan

    Sajjad Ahmad, Abdul Wahab, Suleman Khan, Muhammad Sadiq, Kamil Qureshi & Zaid Khan

Authors
  1. Sajjad Ahmad
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  2. Abdul Wahab
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  3. Suleman Khan
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  4. Muhammad Sadiq
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  5. Kamil Qureshi
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  6. Zaid Khan
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Corresponding author

Correspondence to Sajjad Ahmad .

Editor information

Editors and Affiliations

  1. Faculty of Sciences of Bizerte, University of Carthage, Amilcar, Tunisia

    Mabrouk Boughdiri

  2. Earth Science Department, University of Zaragoza, Zaragoza, Spain

    Beatriz Bádenas

  3. University of Kansas, Lawrence, KS, USA

    Paul Selden

  4. University of Grenoble Alpes, Grenoble, France

    Etienne Jaillard

  5. Institute of Earth Sciences, Heidelberg University, Heidelberg, Germany

    Peter Bengtson

  6. University of Bretagne Occidentale, Brest, France

    Bruno R.C. Granier

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Ahmad, S., Wahab, A., Khan, S., Sadiq, M., Qureshi, K., Khan, Z. (2019). Integrated Sequence Stratigraphy of the Middle Jurassic (Bajocian-Callovian) Chiltan Formation in the Lower Indus Basin, Pakistan. In: Boughdiri, M., Bádenas, B., Selden, P., Jaillard, E., Bengtson, P., Granier, B. (eds) Paleobiodiversity and Tectono-Sedimentary Records in the Mediterranean Tethys and Related Eastern Areas. CAJG 2018. Advances in Science, Technology & Innovation. Springer, Cham. https://doi.org/10.1007/978-3-030-01452-0_40

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