Lithological and geochemical analyses of sandy beach sediments of different geological frameworks: the south-eastern Baltic Sea (Lithuania)

Karlonienė, Dovilė; Pupienis, Donatas; Jarmalavičius, Darius; Dubikaltienė, Aira; Žilinskas, Gintautas

doi:10.1007/s12517-021-06468-x

Cited by 3 publications

References 51 publications

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Sediment composition and U–Pb ages of detrital zircons in the Salina Cruz and Puerto Ángel beaches along the Gulf of Tehuantepec, Mexican Pacific

Ramos‐Vázquez,

Armstrong‐Altrin,

Verma

et al. 2024

Geological Journal

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The Salina Cruz and Puerto Ángel beach areas in the Gulf of Tehuantepec, Mexican Pacific coast represent an important economic sector of the region. In this study, the mineralogy and geochemistry of bulk sediments, and geochronology of 400 detrital zircons recovered from the beach sediments were analysed to investigate their origin. The sediments are abundant in quartz, feldspar, ilmenite, cordierite, aragonite and anorthite. The chemical index of weathering revealed a moderate to intense weathering in the source area. The chondrite normalized REE patterns of bulk sediments are similar to the found in the Upper Continental Crust, suggesting the derivation of sediments from felsic igneous rocks. The REE patterns of zircons and the trace elemental ratios reveal a continental crust origin. Zircon U–Pb ages in the Salina Cruz beach were represented by Proterozoic (~545.1–1314.1 Ma; n = 170) and Cenozoic (~0.01–66 Ma; n = 20). The Puerto Ángel beach was abundant in Proterozoic zircon grains (~600.9–1171.4 Ma; n = 109) and followed by Mesozoic grains (~73.78–246.9 Ma; n = 40). The comparison of zircon U–Pb ages of this study with probable source rocks reveals that the Oaxaquia Terrane and Chiapas Massif Complex were the major contributors of Proterozoic zircons to the coastal areas. Similarly, the results indicate that the Cenozoic zircons were contributed by the Chiapas Massif Complex, coastal batholith and Cuicateco Terrane. The Mesozoic zircons are very few, derived from the nearby Xolapa Complex and the Chuacús Terrane.

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Sediment composition and U–Pb ages of detrital zircons in the Salina Cruz and Puerto Ángel beaches along the Gulf of Tehuantepec, Mexican Pacific

Ramos‐Vázquez,

Armstrong‐Altrin,

Verma

et al. 2024

Geological Journal

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Mineralogy and Geochemistry of Marine Sediments in the Northeastern Gulf of Mexico

Ramos-Vázquez

Armstrong‐Altrin

Madhavaraju

et al. 2022

Geochemical Treasures and Petrogenetic Processes

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Caracterização Sedimentar das Praias Arenosas da Ilha do Maranhão

De Lima,

Pereira,

Parise

et al. 2024

Rev. Bras. Geog. Fis.

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As praias arenosas da Ilha do Maranhão localizam-se em ambiente macromaré, confinadas entre falésias e desenbocaduras fluviais. A morfodinâmica destas praias varia em função do regime de precipitações da região, com periodicidade semi-anual tendo a ZCIT como principal sistema meteorológico. O objetivo deste estudo foi caracterizar os sedimentos do mesolitoral das praias arenosas oceânicas (Ponta da Areia, São Marcos, Calhau, Olho D’Água, Meio, Araçagy e Mangue Seco e Carimã) e abrigadas (Guia e Panaquatira) da Ilha do Maranhão. Para tal, coletou-se 125 amostras que foram submetidas a análises granulométricas. As análises levaram em consideração o diâmetro médio do grão (Φ), o selecionamento (σI), a assimetria (SKI) e curtose (KG). Os sedimentos praiais foram predominantemente do tamanho areia fina e muito fina, variando de bem a moderadamente selecionados, com assimetrias e angulosidade variadas, refletindo as dinâmicas de interações inerentes de cada compartimento praial, na dependência da orientação da linha de costa, suprimento sedimentar e da geologia antecedente. O morfotipo de barreira costeira, na qual encontram-se as praias arenosas da Ilha do Maranhão, exerce controle morfodinâmico, apontando setores com características erosivas em barreiras de praias anexadas, enquanto e as barreiras de esporões arenosos ligadas a cabeços de promontórios indicam características deposicionais.

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Lithological and geochemical analyses of sandy beach sediments of different geological frameworks: the south-eastern Baltic Sea (Lithuania)

Cited by 3 publications

References 51 publications

Sediment composition and U–Pb ages of detrital zircons in the Salina Cruz and Puerto Ángel beaches along the Gulf of Tehuantepec, Mexican Pacific

Sediment composition and U–Pb ages of detrital zircons in the Salina Cruz and Puerto Ángel beaches along the Gulf of Tehuantepec, Mexican Pacific

Mineralogy and Geochemistry of Marine Sediments in the Northeastern Gulf of Mexico

Caracterização Sedimentar das Praias Arenosas da Ilha do Maranhão

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