Microtextures of Quartz Grain Surface from Recent Sedimentary Environments along Al-Khowkhah- Al-Mokha Coastal Area, Southern Red Sea, Yemen

Wasel, Saeed

doi:10.4197/mar.23-1.7

Cited by 3 publications

(2 citation statements)

References 20 publications

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“…Many researchers have emphasized that microtextures on quartz grain surfaces can be used to identify different sedimentary environments and modes of transport mechanisms [1][2][3][4][5][6][7][8][9]. The microtextures of quartz sand grains can provide valuable information about the various processes acting on grains during transportation and after deposition [10,11].…”

Section: Introductionmentioning

confidence: 99%

“…They concluded that the beach sediments of Al-Khowkhah were derived largely from the igneous and volcanic rocks outcropping to the east of the studied area. [4] utilized microtextures on quartz grains from the Al-Khowkhah and Al-Mokha coastal areas to the south of Al-Hodeidah, to clarify the relationship between the various recent sedimentary environments. However, none of these studies utilized microtextures on quartz grains from the Al-Khowkhah beach area of southern Hodeidah to examine sediment provenance.…”

Section: Introductionmentioning

confidence: 99%

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Microtextures on Quartz Grain Surfaces in the Beach Sediments of Southern Hodeidah, Red Sea Coast, Yemen

Al-Aydrus

Wasel

Al-Wosabi

2023

jast

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Surface features of quartz grains on the Al-Haymah and Moushij beaches of the coastal area in the southern Red Sea of Yemen were analyzed by a scanning electron microscope (SEM) to deduce the provenance and depositional environment of sediments. The microtextures on quartz grains were classified into mechanical, chemical, and mechanical/chemical origins. The quartz grains from the two beach areas were rounded to subrounded in shape. Rounded quartz grains with a combination of bulbous and broken edges indicated a recycled provenance. Mechanical features such as V-shaped marks and straight and curved scratches revealed the combination of fluvial and high-energy subaqueous beach environments, whereas aeolian grains are mainly marked by crescentic percussion marks, elongated depressions, and upturned plates. Chemical features such as solution pits, silica globules, trapped diatoms, and adhering particles in quartz grains indicated a diagenetic environment and silica re-precipitation in a coastal environment. In general, the microtextures identified on quartz grains reveal that sediments are influenced by wind, fluvial, and subaqueous marine environments and are derived from nearby and distal sources.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Microtextures on Quartz Grain Surfaces in the Beach Sediments of Southern Hodeidah, Red Sea Coast, Yemen

Al-Aydrus

Wasel

Al-Wosabi

2023

jast

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Aeolian sands and soils of a Wetland Biosphere Reserve: The Tablas de Daimiel

García-Giménez¹,

González-Cascón²,

Vigil³

et al. 2015

Span. J. Soil Sci.

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Three soil profiles were characterized from a sandy area situated in a transitional zone in the “Tablas de Daimiel” UNESCO wetland biosphere reserve (TDNP) in the Mancha Plain (Central Spain). The original thickness of the soil layer in this area was as much as 100 cm, but the combined effect of unbalanced cultivation (including irrigation) and an increasingly dry climate has partially eroded their natural properties, almost leading to a desertification process. The main properties of these soils, classified as Xeropsamments (Soil Survey Staff 2006) or Arenosols (IUSS Working Group WRB 2006), are the dominance of sand in the soil matrix, its basic character, and low soil organic matter and carbonate contents. Scanning electron microscopy of the quartz grain surfaces indicated that the superficial textureswere commonly well preserved and characteristic of specific conditions of aeolian formation. Exoscopy revealed a mixture of sub-angular and rounded quartz morphotypes withwell-preserved mechanical impacts on the grain surfaces. These percussion effects are characteristic of aeolian processes and confirmed that mechanical actions were more significant than chemical processes in their pedogenesis.This micromorphological study of the textural sands in the transitional zone of the TDNP revealed that the (red) sands were transported to this area by wind, probably from material of degraded red soils, and deposited on soil horizons previously developed over marls and limestones. The relict character of these materials and specially their susceptibility to degradation should be considered as a priority argument to preserve this area and introduce management measurements to avoid soil erosion.

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Comparative analysis of the fine-grained quartz textures from ain temouchent beaches and adrar sand dunes in Algeria

Dahmani,

Bouskaia,

Amer

et al. 2024

SEES

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This research endeavors to scrutinize the microtextures of quartz grains obtained from two distinct regions in Algeria: the beaches of Ain Temouchent Province along the Mediterranean coast and the sand dunes of Adrar Province in the southern part of the country. The analysis focuses on examining the shape and size of the quartz grains, with particular attention to the smooth texture of the surfaces. Quartz grains from both coastal and desert regions exhibit an angular to sub-circular shape, indicating diverse and heterogeneous origins with short to medium transport processes. Notably, differences emerge in the mechanical features present on the surfaces of these quartz grains, allowing for the differentiation and partial prediction of their respective environments. Mechanical signs such as percussion marks (Pm), V-shaped marks (Vs), parallel striations (Ps), meandering ridges (Mr), bulged edges (ble), crystal overgrowths (Cro), and rough terrain are prevalent on grains from the beaches of Ain Temouchent Province, indicating a high-energy beach environment. Conversely, quartz grains from the Adrar region exhibit abundant features such as grain-to-grain impact (CK), meandering ridges (Mr), bulged edges (ble), and smooth surfaces, signifying exposure to strong air currents and facilitating the transportation of grains over considerable distances, contributing to erosion processes in the area. This comprehensive analysis provides valuable insights into the geological history and sedimentary processes of the coastal and sand dune environments in Algeria.

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Microtextures of Quartz Grain Surface from Recent Sedimentary Environments along Al-Khowkhah- Al-Mokha Coastal Area, Southern Red Sea, Yemen

Cited by 3 publications

References 20 publications

Microtextures on Quartz Grain Surfaces in the Beach Sediments of Southern Hodeidah, Red Sea Coast, Yemen

Microtextures on Quartz Grain Surfaces in the Beach Sediments of Southern Hodeidah, Red Sea Coast, Yemen

Aeolian sands and soils of a Wetland Biosphere Reserve: The Tablas de Daimiel

Comparative analysis of the fine-grained quartz textures from ain temouchent beaches and adrar sand dunes in Algeria

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