Lateral Variability of Sequence Stratigraphic Framework in the Campanian and Lower Maastrichtian of the Western Interior Seaway

1995 ◽  
Author(s):  
L. F. Krystinik ◽  
Beverly Blakeney DeJarnett
Keyword(s):  
Western Interior Seaway ◽  
Sequence Stratigraphic ◽  
Stratigraphic Framework ◽  
Lower Maastrichtian

scholarly journals Facies and stratigraphic framework of a Khuff outcrop equivalent: Saiq and Mahil formations, Al Jabal al-Akhdar, Sultanate of Oman

GeoArabia ◽  
2010 ◽  
Vol 15 (2) ◽  
pp. 91-156 ◽  
Author(s):  
Bastian Koehrer ◽  
Michael Zeller ◽  
Thomas Aigner ◽  
Michael Poeppelreiter ◽  
Paul Milroy ◽  
...  
Keyword(s):  
Middle East ◽  
Lower Triassic ◽  
Distal Portion ◽  
Marine Fauna ◽  
Sequence Stratigraphic ◽  
Stratigraphic Analysis ◽  
Oman Mountains ◽  
Stratigraphic Framework ◽  
Al Jabal Al Akhdar ◽  
Fifth Order

ABSTRACT The Middle Permian to Lower Triassic Khuff Formation is one of the most important reservoir intervals in the Middle East. This study presents a sequence stratigraphic analysis of the Khuff Formation of a well-exposed outcrop in the Oman Mountains, which may provide a reference section for correlations across the entire Middle East. On the Saiq Plateau of the Al Jabal al-Akhdar, the Permian Upper Saiq Formation is time-equivalent to the Lower and Middle Khuff Formation (K5–K3 reservoir units in Oman). The Permian section is dominated by graded skeletal and peloidal packstones and cross-bedded grainstones with a diverse marine fauna. The Lower Mahil Member (Induan Stage), time-equivalent to the Upper Khuff Formation (K2–K1 reservoir units in Oman), is dominated by grainstones composed of microbially-coated intra-clasts and ooids. In general, the studied outcrop is characterized by a very high percentage of grain-dominated textures representing storm-dominated shoal to foreshoal deposits of a paleogeographically more distal portion of the Khuff carbonate ramp. A sequence-stratigraphic analysis was carried out by integrating lithostratigraphic marker beds, facies cycles, bio- and chemostratigraphy. The investigated outcrop section was subdivided into six third-order sequences, named KS 6 to KS 1. KS 6–KS 5 are interpreted to correspond to the Murgabian to Midian (ca. Wordian to Capitanian) stages. KS 4-Lower KS 2 correspond to the Dzhulfian (Wuchiapingian) to Dorashamian (Changhsingian) stages. Upper KS 2–KS 1 represent the Triassic Induan stage. Each of the six sequences was further subdivided into fourth-order cycle sets and fifth-order cycles. The documentation of this outcrop may contribute to a better regional understanding of the Khuff Formation on the Arabian Platform.

scholarly journals A New Sequence Stratigraphic Framework of Terrestrial Fluvial

2017 ◽  
Vol 4 (1) ◽  
pp. 85 ◽  
Author(s):  
Zhipeng Lin ◽  
Le Chen ◽  
Jingfu Shan ◽  
Tan Zhang ◽  
Qianjun Sun ◽  
...  
Keyword(s):  
Deposition Process ◽  
Vital Role ◽  
Fluvial System ◽  
Fluvial Systems ◽  
Sequence Stratigraphic ◽  
Meandering River ◽  
River Types ◽  
Stratigraphic Framework ◽  
Different Characteristics ◽  
System Tract

Currently, the recognition and research on the classification of fluvial types mainly focus on the description and results of a series of indicators, such as the plane shape and sediment characteristics. However, there is limited literacy about how to demonstrate the fluvial types from the depositional process, especially less on sequence model of inland fluvial. Thus, this paper aims o propose a new kind of sequence stratigraphic framework, which is able to reflect the fluvial processes under the perspective of sequence stratigraphy. Accordingly, we use the principle of concrete analysis for concrete problems by comprehensively summing up the previous classification schemes of river types. With the research method of sedimentation process, new fluvial systems tracts for fluvial are presented here, including four parts: low fluvial system tract (LFST), advancing fluvial system tract (AFST), flooding fluvial system tract (FFST), receding fluvial system tract (RFST). Moreover, these could be applied to tackle the problem of the traditional division of fluvial. Various rivers have the different characteristics of systems tracts, then this may play a vital role in the discrimination of meandering river, braided river, anastomosing river and branched river. This study embodies the philosophical thought of Process Sedimentology and may contribute to revealing the deposition process of the fluvial system more profoundly from the aspect of genetic mechanism and evolution course. Most importantly, the fluvial classification system is definitely improved from the description stage to a complete rational stage.

Relationship between cyclic patterns of organic matter concentrations and their paleoenvironmental controls in the Upper Cretaceous rocks in Abu El Gharadig basin, Egypt: Cyclo-sequence stratigraphic framework

2022 ◽  
Vol 136 ◽  
pp. 105474
Author(s):  
Esam A. Abd El Gawad ◽  
Walid A. Makled ◽  
Ahmed S. Mousa ◽  
Tarek Y. El Hariri ◽  
Doaa A. Mousa ◽  
...  
Keyword(s):  
Organic Matter ◽  
Upper Cretaceous ◽  
Sequence Stratigraphic ◽  
Cyclic Patterns ◽  
Stratigraphic Framework

Sequence Stratigraphic Framework of the Late Albian-Early Cenomanian

2010 ◽  
Author(s):  
A. H. Youssef ◽  
A.P. Kadar ◽  
R. Morales
Keyword(s):  
Sequence Stratigraphic ◽  
Stratigraphic Framework

scholarly journals Middle Jurassic sequence stratigraphic characteristics in Longdong coalfield

2019 ◽  
Vol 118 ◽  
pp. 01010
Author(s):  
Tai Xu ◽  
Shuang Li ◽  
Fengfeng Yang ◽  
Jufeng Zhang ◽  
Xiulan Zhu
Keyword(s):  
Coal Seam ◽  
Middle Jurassic ◽  
Sequence Comparison ◽  
Lateral Direction ◽  
Stratigraphic Sequence ◽  
Coal Resources ◽  
Sequence Stratigraphic ◽  
Stratigraphic Framework ◽  
Migration Law ◽  
Jurassic Sequence

Stratigraphic sequence contrast and sequence stratigraphic framework are of great significance for the sedimentary phase and sedimentary systems of coal-accumulating basin. In the coal-bearing basin, the variation of the flooding surface controls the migration law of the coal-concentrating centres within the range. Therefore, the sequence comparison work is crucial to find favorable coal-collecting areas. In addition, studying the position of the coal seam in the sequence stratigraphic framework and carrying out the sequence comparison work in the lateral direction can effectively track the change of the position of the coal seam in the sequence stratum and summarize the law of coal seam accumulation and occurrence, which can be better to plan and guide the exploration and development of coal resources in Longdong coalfield.

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