NDLI: Facies and integrated sequence stratigraphy of an Epeiric Carbonate Ramp Succession: Dhruma Formation, Sultanate of Oman

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Facies and integrated sequence stratigraphy of an Epeiric Carbonate Ramp Succession: Dhruma Formation, Sultanate of Oman

Content Provider	Semantic Scholar
Author	Schlaich, Markus Aigner, Thomas
Copyright Year	2017
Abstract	As an example of an epeiric carbonate ramp depositional system, the worldclass outcrops of the Middle Jurassic Dhruma Formation were studied in the Oman Mountains (Sultanate of Oman). An integrated approach was followed: facies analyses were combined with quantitative sequence-stratigraphic methods as well as bioand chemostratigraphy. Depositional environments range from peritidal to lagoonal and ‘shoal-like’ environments. A conspicuous four-level hierarchy of cyclicity was identified. This is substantiated by facies trends and specific cycle indicators such as various types of discontinuity surfaces, biofacies changes, and a suite of quantitativeand semi-quantitative sequencestratigraphic methods like facies stacking pattern plots, facies percentage, bedthickness and bio-component diversity plots, as well as diagrams representing the environmental range and facies belt width per high-frequency sequence. Potential reservoir facies are present in the form of peloidal and oolitic grainstones; potential baffle/seal facies as vastly extensive mudstones and marls. A transition from peritidal to low-energy lagoonal deposits to increasingly highenergy deposits can be observed towards the top of the Dhruma Formation representing a landward shift of the depositional environment. This study may be useful as outcrop analogue for the hydrocarbon-bearing parts of the Dhruma in the subsurface of the Arabian Plate and for similar epeiric carbonates elsewhere.
Starting Page	92
Ending Page	132
Page Count	41
File Format	PDF HTM / HTML
DOI	10.1002/dep2.28
Volume Number	3
Alternate Webpage(s)	https://uni-tuebingen.de/index.php?eID=tx_securedownloads&file=/fileadmin/Uni_Tuebingen/Fakultaeten/MatNat/Fachbereiche/Geowissenschaften/Arbeitsgruppen/Angewandte_Geowissenschaften/Sedimentgeologie/publications/Schlaich_et_al-2017-The_Depositional_Record.pdf&g=0&hash=28ea428257c5466fb1e8b59c6ef7528ac1c0032e&p=94472&t=1565796182&u=0
Alternate Webpage(s)	https://doi.org/10.1002/dep2.28
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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