Seismic evidence for the syndepositional fault activity controls on geometry and facies distribution patterns of Cenomanian (Lidam) reservoir, Dahra Platform, Sirt Basin, Libya

2022 ◽  
Vol 136 ◽  
pp. 105471
Author(s):  
Mohammed S. Gumati
Keyword(s):  
Distribution Patterns ◽  
Fault Activity ◽  
Facies Distribution ◽  
Sirt Basin

Tectonic–sedimentary interplay of a confined deepwater system in a foreland basin setting: the Pennsylvanian lower Atoka Formation, Ouachita Mountains, U.S.A.

2021 ◽  
Vol 91 (7) ◽  
pp. 683-709
Author(s):  
Pengfei Hou ◽  
Lesli J. Wood ◽  
Zane R. Jobe
Keyword(s):  
Foreland Basin ◽  
Structural Data ◽  
Distribution Patterns ◽  
Sediment Supply ◽  
Ouachita Mountains ◽  
Submarine Fan ◽  
Facies Distribution ◽  
Submarine Fans ◽  
Basin Morphology ◽  
Complex Settings

ABSTRACT Submarine fans deposited in structurally complex settings record important information on basin evolution and tectonic–sedimentary relationships but are often poorly preserved in outcrops due to syndepositional and post depositional deformation. This study aims to understand the influence of tectonics on the deposition of the synorogenic Pennsylvanian lower Atoka submarine fan system deposited in a structurally complex foreland basin during the Ouachita orogeny. This study is a synthesis of new outcrop stratigraphic data as well as published stratigraphic and structural data. The lower Atoka crops out in the Ouachita Mountains and the southern Arkoma Basin and is divided into three structural–depositional zones: the foredeep, the wedge top, and the continental foreland. The mean paleoflow is axial, and each zone exhibits unique patterns in facies distribution. The foredeep consists of two fan systems, a large westward-prograding fan that exhibits significant longitudinal and lateral facies changes, and a small eastward-prograding fan on the western part. The wedge top consists of a westward-prograding fan that exhibits subtle longitudinal facies change. The continental foreland consists of small slope fan systems along the northern and western margins. By comparing to basin morphology and structural styles, we interpret the facies distribution patterns in the three zones as the result of different combinations of lateral structural confinement, axial and lateral sediment supply, and paleogeography. This study provides an improved and comprehensive understanding of the lower Atoka deepwater system and has implications for deciphering the tectonic–sedimentary relationships in laterally confined submarine fan systems.

Pleistocene and Recent sediments of northern Placentia Bay, Newfoundland

1976 ◽  
Vol 13 (10) ◽  
pp. 1386-1392 ◽  
Author(s):  
Charles F. Stehman
Keyword(s):  
Sedimentary Facies ◽  
Distribution Patterns ◽  
Surficial Sediments ◽  
Facies Distribution ◽  
Marine Deposits ◽  
Placentia Bay ◽  
Recent Sediments

Study of the sediments found in northern Placentia Bay, Newfoundland, using MS-26-B echosounder profiles and 87 grab samples, reveals that sediments in that area are derived principally from glacial sources. Sediment facies distribution patterns are contrastingly different in different regions of the bay. The data suggest that surficial sediments associated with glacial drift, transgressive marine deposits, and modern sedimentation occur in a complex mosaic of seven facies distributed throughout the region. There is some evidence of relationships between sedimentary facies and both bathymetry and geography.

HUBUNGAN KEPADATAN BIVALVIA DENGAN PARAMETER LINGKUNGAN DI PESISIR TANJUNG PURA KABUPATEN BANGKA TENGAH

2020 ◽  
Vol 13 (2) ◽  
pp. 112-121
Author(s):  
Sudiyar . ◽  
Okto Supratman ◽  
Indra Ambalika Syari
Keyword(s):  
Negative Impact ◽  
Principal Component ◽  
Environmental Parameters ◽  
Data Retrieval ◽  
Distribution Patterns ◽  
Random System ◽  
System Method ◽  
Relationship Of ◽  
The Relationship ◽  
Anadara Granosa

The destructive fishing feared will give a negative impact on the survival of this organism. This study aims to analyze the density of bivalves, distribution patterns, and to analyze the relationship of bivalves with environmental parameters in Tanjung Pura village. This research was conducted in March 2019. The systematic random system method was used for collecting data of bivalves. The collecting Data retrieval divided into five research stasions. The results obtained 6 types of bivalves from 3 families and the total is 115 individuals. The highest bivalve density is 4.56 ind / m², and the lowest bivalves are located at station 2,1.56 ind / m²,  The pattern of bivalve distribution in the Coastal of Tanjung Pura Village is grouping. The results of principal component analysis (PCA) showed that Anadara granosa species was positively correlated with TSS r = 0.890, Dosinia contusa, Anomalocardia squamosa, Mererix meretrix, Placamen isabellina, and Tellinella spengleri were positively correlated with currents r = 0.933.

Sign in / Sign up

Export Citation Format

Share Document