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A composite stratigraphy for the Neoproterozoic Huqf Supergroup of Oman; integrating new litho-, chemo- and chronostratigraphic data of the Mirbat area, southern Oman

Ruben Rieu, Philip A. Allen, Andrea Cozzi, Jan Kosler and Francois Bussy
A composite stratigraphy for the Neoproterozoic Huqf Supergroup of Oman; integrating new litho-, chemo- and chronostratigraphic data of the Mirbat area, southern Oman
Journal of the Geological Society of London (2007) 164 (5): 997-1009

Abstract

The Huqf Supergroup in Oman contains an exceptionally well-preserved and complete sedimentary record of the middle to late Neoproterozoic Era. Outcrops of the Huqf Supergroup in northern and central Oman are now well documented, but their correlation with a key succession in the Mirbat area of southern Oman, containing a sedimentary record of two Neoproterozoic glaciations, is poorly understood. Integration of lithostratigraphic, chemostratigraphic and new U-Pb detrital zircon data suggests that the Mirbat Group is best placed within the Cryogenian (c. 850-635 Ma) part of the Huqf Supergroup. The c. 1 km thick marine deposits of the Arkahawl and Marsham Formations of the Mirbat Group are thought to represent a stratigraphic interval between older Cryogenian and younger Cryogenian glaciations that is not preserved elsewhere in Oman. The bulk of detrital zircons in the Huqf Supergroup originate from Neoproterozoic parent rocks. However, older Mesoproterozoic, Paleoproterozoic and even Archean zircons can be recognized in the detrital population from the upper Mahara Group (Fiq Formation) and Nafun Group, suggesting the tapping of exotic sources, probably from the Arabian-Nubian Shield.


ISSN: 0016-7649
EISSN: 2041-479X
Coden: JGSLAS
Serial Title: Journal of the Geological Society of London
Serial Volume: 164
Serial Issue: 5
Title: A composite stratigraphy for the Neoproterozoic Huqf Supergroup of Oman; integrating new litho-, chemo- and chronostratigraphic data of the Mirbat area, southern Oman
Affiliation: ETH-Zuerich, Department of Earth Sciences, Zurich, Switzerland
Pages: 997-1009
Published: 2007
Text Language: English
Publisher: Geological Society of London, London, United Kingdom
References: 74
Accession Number: 2007-107317
Categories: Stratigraphy
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. charts, strat. col., geol. sketch map
N18°00'00" - N24°00'00", E55°00'00" - E59°00'00"
Secondary Affiliation: University of Bergen, NOR, NorwayUniversity of Lausanne, CHE, Switzerland
Country of Publication: United Kingdom
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States. Reference includes data from The Geological Society, London, London, United Kingdom
Update Code: 200745
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