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Book Chapter

From global geology to hydrocarbon exploration: Ediacaran–Early Cambrian petroleum plays of India, Pakistan and Oman

By
Andrea Cozzi
Andrea Cozzi
Ieoc, n. 1, Road 204, Degla Square, Maadi, Cairo, PO Box 52, New Maadi 11742, Egypt
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Giuseppe Rea
Giuseppe Rea
Eni E&P, Via Emilia 1, 20097, San Donato Milanese, Italy
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Jonathan Craig
Jonathan Craig
Eni E&P, Via Emilia 1, 20097, San Donato Milanese, Italy
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Published:
January 01, 2012

Abstract

The vast amount of new lithostratigraphic, chemostratigraphic and geochronologic data from the Huqf Supergroup (Sultanate of Oman) has established it as the Cryogenian (850–635 Ma) and Ediacaran (635–542 Ma) reference section for the Neoproterozoic of the Middle East Region. A direct litho- and chemostratigraphic comparison of the Huqf Supergroup of Oman with the supposed time-equivalent succession of the Marwar Supergroup in western Rajasthan (India) reveals remarkable affinities in facies evolution and chemostratigraphic signature through time. Ara Group equivalent strata are also found in the Salt Range Formation of Pakistan, which shows an almost identical repetition of evaporites and carbonates with six to seven basin refreshening–desiccation cycles, comparing well with the A0–A6 Ara Group stratigraphy of the South Oman Salt Basin. These similarities bring out a consistent picture of a cratonic setting for the Marwar Supergroup of West Rajasthan, changing into a more open marine setting towards Pakistan until Oman, suggesting an assembly of Oman–Pakistan and India ‘terrains’ prior to being accreted to the Arabian shield sometime after 650 Ma. From a petroleum exploration perspective, key success factors when pursuing the Late Neoproterozoic plays in the Salt Basins of India, Pakistan and Oman are source rock maturity, charge preservation and seal integrity.

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Contents

Geological Society, London, Special Publications

Geology and Hydrocarbon Potential of Neoproterozoic–Cambrian Basins in Asia

G. M. Bhat
G. M. Bhat
University of Jammu, India
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J. Craig
J. Craig
eni exploration & production, Italy
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J. W. Thurow
J. W. Thurow
University College London, UK
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B. Thusu
B. Thusu
University College London, UK
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A. Cozzi
A. Cozzi
Ieoc, Egypt
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Geological Society of London
Volume
366
ISBN electronic:
9781862396142
Publication date:
January 01, 2012

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