Quartz grain microtextures in the Boca del Cielo and Chocohuital beaches in the Mexican Pacific, Chiapas state: implication on paleoenvironment

Armstrong‐Altrin, John S.; Ramos-Vázquez, Mayla A.; Madhavaraju, Jayagopal; Verma, Sanjeet K.; Macías-Martínez, Katherinne; Martínez-Ruíz, Damian

doi:10.1007/s12517-022-10334-9

Cited by 12 publications

(3 citation statements)

References 68 publications

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“…Copying of a text must be indicated as such using quotation marks and giving the appropriate reference. (7) All authors have been personally and actively involved in the substantial work leading up to the writing of the article and will take public responsibility for it. All authors have been personally and actively involved in the substantial work that led to the writing of the article and will publicly assume responsibility for its content.…”

Section: Discussionmentioning

confidence: 99%

Heavy Minerals in Beach Sediments Along the Gulf of Guinea, Cameroon: Clues on Weathering Condition and Provenance

Bela,

Bessa,

Armstrong-Altrin

et al. 2024

Thalassas

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A mineralogical survey was conducted in the Gulf of Guinea sands to assess the transport history, depositional environment, weathering conditions and, provenance. Heavy mineral assemblages are abundant in augite, followed by opaque minerals, diopside, zoisite, enstatite, tourmaline, zircon, rutile, sillimanite, garnet, apatite, hornblende, epidote, kyanite, chloritoid and staurolite. The variety of this minerals show that the sands studied come from the igneous source rocks, mainly from a metamorphic source, in particular the gneisses and basalts, which is consistent with the geology of the study area. The bulk mineralogy detected using XRD and the chemical properties obtained by SEM-EDS reveals that the sands were dominated by quartz. Nineteen microtextures were observed on heavy minerals like hornblende, chloritoid, sillimanite, garnet, augite and staurolite, which were subsequently classi ed as mechanical (13 features), chemical (4 features), and combined mechanical and chemical (2 features) origins. The dominance of mechanical features suggest that the grains underwent high-energy transport. The abundance of angular and subangular heavy minerals indicate distance or nearby source. The mineral composition suggests that the source rocks underwent moderate weathering. The sub-rounded and rounded heavy minerals indicate a long transport. The predominance of heavy minerals in sediments suggest that the nearby source rocks are rich in heavy minerals.

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Section: Discussionmentioning

confidence: 99%

Heavy Minerals in Beach Sediments Along the Gulf of Guinea, Cameroon: Clues on Weathering Condition and Provenance

Bela,

Bessa,

Armstrong-Altrin

et al. 2024

Thalassas

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“…All the subaqueous‐generated features, like conchoidal fractures, arcuate and straight steps and grooves, are very common on the samples of the foreshore region. Chemical surface textures, such as silica globules, silica flowers and solution crevasses, are common under the silica‐saturated conditions (Armstrong‐Altrin et al, 2022; Hossain et al, 2020; Mejía‐Ledezma et al, 2020; Ramos‐Vázquez & Armstrong‐Altrin, 2021; Vos et al, 2014), when quartz grains reside on the foreshore portion of the beach. Subaqueous residence time, silica availability and intermediate weathering and diagenesis of quartz grains affect chemical surface textures.…”

Section: Discussionmentioning

confidence: 99%

Distinguishing depositional environments in the beach–dune system of Chandipur, India, based on sediment texture and quartz grain surface features

Saha

Sinha

2023

Earth Surf Processes Landf

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An attempt has been made to discern sedimentary environments in a tropical coastal setting in Chandipur, India, using variations in grain size. Samples were collected along one 100 m‐long cross‐shore transect extending from the tide/aqueous‐influenced seaward region to the aeolian‐dominated landward region. Various grain size data analysis approaches, like bivariate data plots and discrimination functions, were used to discriminate the sedimentary environments and establish the process of sediment deposition. The analytical results suggest that diverse granulometric parameters translate different sedimentary environments such as tidal flat, beach and dune. Additionally, the surface morphologies of quartz grains were used to understand the evolution of recent mechanical, chemical and mechanical–chemical processes in this tropical coastal region. Changes in the surficial microtextural properties of quartz grains were documented at various sites of all geomorphic units along this transect, from the tidal flat to the dune. One‐way analysis of variance (ANOVA) was used to understand the significant differences in microtextural features between these units. Subaqueous surface textures such as large conchoidal fractures, sharp edges, arcuate steps and straight and curved grooves were dominant in the grains of the tidal flat. The presence of meandering ridges, upturned plates, bulbous edges and adhering particles on quartz gradually increases as the transect ascends landward. Correlation plots between distance and microtextures, along with ANOVA, suggest that aeolian transportation modulated the surface textures. Such assessment of distinct sedimentary characteristics and transport processes may serve as a modern analogue for ancient deposits on the siliciclastic coast.

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“…In addition, elongated depressions were noted on some grains. Their formation is attributed to high-energetic aeolian transport [2,27]. However, the rounded to subrounded grain outline may reflect the original grain shape generated by the parent rock.…”

Section: Mechanical/chemical Originmentioning

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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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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Quartz grain microtextures in the Boca del Cielo and Chocohuital beaches in the Mexican Pacific, Chiapas state: implication on paleoenvironment

Cited by 12 publications

References 68 publications

Heavy Minerals in Beach Sediments Along the Gulf of Guinea, Cameroon: Clues on Weathering Condition and Provenance

Heavy Minerals in Beach Sediments Along the Gulf of Guinea, Cameroon: Clues on Weathering Condition and Provenance

Distinguishing depositional environments in the beach–dune system of Chandipur, India, based on sediment texture and quartz grain surface features

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

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