The Offshore Bar Revisited: A New Depositional Model For Isolated Shallow Marine Sandstones In the Cretaceous Frontier Formation of the Northern Uinta Basin, Utah, U.S.A.

2016 ◽  
Vol 86 (1) ◽  
pp. 38-58 ◽  
Author(s):  
Andrew J. Hutsky ◽  
Christopher R. Fielding
Keyword(s):  
Depositional Model ◽  
Uinta Basin ◽  
Shallow Marine ◽  
Frontier Formation

A depositional model for offshore deposits of the lower Blue Gate Member, Mancos Shale, Uinta Basin, Utah, USA

Sedimentology ◽  
2017 ◽  
Vol 64 (5) ◽  
pp. 1402-1438 ◽  
Author(s):  
Lauren P. Birgenheier ◽  
Brendan Horton ◽  
Andrew D. McCauley ◽  
Cari L. Johnson ◽  
Angela Kennedy
Keyword(s):  
Depositional Model ◽  
Uinta Basin ◽  
Mancos Shale

A DEPOSITIONAL MODEL FOR THE DUPUY MEMBER AND THE BARROW GROUP IN THE BARROW SUB-BASIN, NORTHWESTERN AUSTRALIA

1985 ◽  
Vol 25 (1) ◽  
pp. 282 ◽  
Author(s):  
A.M. Tait
Keyword(s):  
Debris Flows ◽  
Upper Jurassic ◽  
Regional Model ◽  
Depositional Model ◽  
Shallow Marine ◽  
Exmouth Plateau ◽  
The North ◽  
Structural Growth ◽  
Northwestern Australia ◽  
East West

A detailed sedimentological study of the Dupuy Member and the Barrow Group has resulted in a regional model for the deposition of these Upper Jurassic to Lower Cretaceous reservoir sequences in the Barrow Sub-basin. The Dupuy Member is interpreted as a prograding offshore slope sequence of turbidite sandstones and debris flows, which built laterally into the Barrow Sub-basin from along its eastern margin. This slope sequence contains bentonite markers in its upper part. The overlying Barrow Group was deposited by a delta which prograded along the length of the Barrow Sub-basin from the southwest and onlapped the Dupuy Member along the eastern side of the sub-basin. The topsets of the delta are fluvial to shallow marine sandstones, the foresets are offshore claystones, and the bottomsets are submarine mass-flow sandstones. After 8 million years of progradation, the delta was starved of sediment by continental breakup south of the Exmouth Plateau and stopped with its last foreset trending in an east-west arc from Barrow Island across the Exmouth Plateau. The Barrow Group delta was then gradually transgressed by the sea and blanketed by the Muderong Shale. Structural growth of the Barrow Island anticline took place during deltaic deposition and caused anomalous relationships between foresets and bottomsets under the north of Barrow Island. Known hydrocarbon accumulations and common shows in the Dupuy Member and the Barrow Group make these sequences attractive exploration targets.

scholarly journals DEPOSITIONAL MODEL OF NGRAYONG FORMATION IN MADURA AREA, NORTH EAST JAVA BASIN, INDONESIA

2015 ◽  
Vol 7 (2) ◽  
pp. 51 ◽  
Author(s):  
Paike Htwe ◽  
Sugeng Sapto Surjono ◽  
Donatus Hendra Amijaya ◽  
Kyuro Sasaki
Keyword(s):  
Large Scale ◽  
Sedimentary Facies ◽  
Depositional Environments ◽  
Depositional Model ◽  
Shallow Marine ◽  
Marine Area ◽  
Fine Grained ◽  
North East ◽  
Area North ◽  
Depositional Units

The early Middle Miocene Ngrayong Formation, an important reservoir of North East Java Basin, is well exposed in the central anticlinal part of Madura Island. The purpose of current study is to classify the depositional environments of the study area based on the characteristics and geometry of sedimentary facies. In the Madura island, the thicker clastics and deeper carbonates of Ngimbang Formation and Kujung Formation of Late Oligocene-Early Miocene deposited in the northeast-southwest asymmetrical half grabens. After the deposition of Kujung Formation, the basin morphology developed nearly eastwest trending shelf edge and the deposition of Tuban Formation began. The fine grained complex of Tuban Formation was followed by the Ngrayong Sandstones deposition. The depositional model of Ngrayong Formation is being producing of wide variety of depositional environments. Large scale cross-bedded sandstones and bioturbated massive sandstones with thin to medium bedded argillaceous limestone that outcrop in the northern part of the study area are deposited in costal environment. The heterolithic sandstone with planar and trough cross-lamination, fine grained sandstone with interlaminated structure and bioclastic carbonate exposed in the central part of the study area are deposited in upper shallow marine area. Dark grey siltstones and mudstones deposited in lower shallow marine area are well exposed in southern part of the study area. In conclusion, Ngrayong Formation in Madura area is developed in three depositional units which are coastal, upper shallow marine and lower shallow marine.

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