The diagenetic evolution of sand injectite outcrops in the mixing groundwater–seawater zone of Bahrah coastal plains, northern Kuwait Bay

2021 ◽  
Vol 14 (19) ◽  
Author(s):  
Mubarak M. Al-Hajeri ◽  
David Green ◽  
Aimen Amer ◽  
Ali Najem ◽  
Yaqoub Al-Refaei ◽  
...  
Keyword(s):  
Coastal Plains ◽  
Kuwait Bay ◽  
Diagenetic Evolution

THE NEW RADIOCARBON DATASET FOR TRILITH MONUMENTS OF SOUTHEASTERN ARABIA

Radiocarbon ◽  
2020 ◽  
pp. 1-11
Author(s):  
R Garba ◽  
P Demján ◽  
I Svetlik ◽  
D Dreslerová
Keyword(s):  
Iron Age ◽  
Temporal Patterns ◽  
Temporal Analysis ◽  
Coastal Plains ◽  
Spatial And Temporal Patterns ◽  
Two Phase ◽  
Stone Monuments ◽  
South Central ◽  
Geographical Expansion ◽  
Spatio Temporal

ABSTRACT Triliths are megalithic monuments scattered across the coastal plains of southern and southeastern Arabia. They consist of aligned standing stones with a parallel row of large hearths and form a space, the meaning of which is undoubtedly significant but nonetheless still unknown. This paper presents a new radiocarbon (14C) dataset acquired during the two field seasons 2018–2019 of the TSMO (Trilith Stone Monuments of Oman) project which investigated the spatial and temporal patterns of the triliths. The excavation and sampling of trilith hearths across Oman yielded a dataset of 30 new 14C dates, extending the use of trilith monuments to as early as the Iron Age III period (600–300 BC). The earlier dates are linked to two-phase trilith sites in south-central Oman. The three 14C pairs collected from the two-phase trilith sites indicated gaps between the trilith construction phases from 35 to 475 years (2 σ). The preliminary spatio-temporal analysis shows the geographical expansion of populations using trilith monuments during the 5th to 1st century BC and a later pull back in the 1st and 2nd century AD. The new 14C dataset for trilith sites will help towards a better understanding of Iron Age communities in southeastern Arabia.

scholarly journals Revealing the socio-economic vulnerability and multi-hazard risks at micro-administrative units in the coastal plains of Tamil Nadu, India

2021 ◽  
Vol 12 (1) ◽  
pp. 605-630
Author(s):  
Balasubramani Karuppusamy ◽  
Sekar Leo George ◽  
Kanagarajan Anusuya ◽  
Ravichandran Venkatesh ◽  
Periasamy Thilagaraj ◽  
...  
Keyword(s):  
Tamil Nadu ◽  
Coastal Plains ◽  
Economic Vulnerability ◽  
Administrative Units

Adult Pecan Weevil Emergence in the Upper Coastal Plains of South Carolina123

1972 ◽  
Vol 65 (3) ◽  
pp. 908-908 ◽  
Author(s):  
R. F. Nash ◽  
C. A. Thomas
Keyword(s):  
Coastal Plains

Religious Sectarianism in the Sertão of Northeast Brazil 1815-1966

1968 ◽  
Vol 10 (3) ◽  
pp. 369-383 ◽  
Author(s):  
Sue Anderson Gross
Keyword(s):  
Rio Grande ◽  
Northeast Brazil ◽  
Coastal Plains ◽  
Religious Groups ◽  
Social Phenomena ◽  
Time Periods ◽  
Afro Brazilian

Sectarian religious groups in Brazil, not of Afro-Brazilian origin, have been formed primarily in the backlands of the Northeast. There they have flourished during two approximate time periods, 1815 to 1840 and 1870 to the present. This paper will examine the religious groups of the Brazilian backlands as social phenomena.The locale of the sects, the backlands sertão, is both a geographical and cultural subregion of the Northeast. The latter area is generally defined as comprising the states of Piauí, Ceará, Rio Grande do Norte, Paraíba, Pernambuco, Sergipe, Alagôas, and northern Bahia. Geographically the sertão is an area subject to recurrent drought, lying back of fertile coastal plains from Salvador in Bahia to Natal in Rio Grande do Norte, touching the coast in Ceará, and again retreating inland in Piauí.

scholarly journals Changing Sea-Level along the North Coast of Kuwait Bay

1983 ◽  
Vol 73 (4) ◽  
pp. 453
Author(s):  
Alexander Melamid ◽  
Taiba A. Al-Asfour
Keyword(s):  
Sea Level ◽  
North Coast ◽  
Kuwait Bay ◽  
The North

The Effect of Diagenetic Evolution on Shale Gas Exploration and Development of the Longmaxi Formation Shale, Sichuan Basin, China

2021 ◽  
Vol 9 ◽  
Author(s):  
Jia Wang ◽  
Xianfeng Tan ◽  
Jingchun Tian ◽  
Long Luo ◽  
Xuanbo Gao ◽  
...  
Keyword(s):  
Shale Gas ◽  
Sichuan Basin ◽  
Pore Space ◽  
Ion Beam ◽  
Central Basin ◽  
Burial History ◽  
Longmaxi Formation ◽  
Diagenetic Evolution ◽  
Basin Margin ◽  
Exploration And Development

Diagenetic evolution is an important controlling factor of shale gas reservoirs. In this study, based on field outcrop and drilling core data, analytical techniques including X-ray diffraction (XRD), field emission scanning electron microscope combined with a focused ion beam (FIB-FESEM), and energy-dispersive spectroscopy (EDS) analyses were performed to determine the diagenetic evolution of the Longmaxi Formation shale and reveal the effect of diagenetic evolution on the shale gas exploration and development in the Sichuan Basin, Southwest China. The eodiagenesis phase was subdivided into two evolution stages, and the mesodiagenesis phase was subdivided into three evolution stages in the basin margin and center. Absorbed capacity and artificial fracturing effect of the Longmaxi Formation shale gas were related to mineral composition, which was influenced by sedimentary characteristics and diagenetic evolution. The diagenetic system in the basin margin was more open than that in the basin center due to a different burial history. The more open diagenetic system, with more micro-fractures and soluble constitute (e.g., feldspar), was in favor for the formation and preservation of secondary dissolved pores and organic pores in the basin margin. The relatively closed diagenetic system with stronger compaction resulted in deformation of pore space in the central basin.

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