Geochemistry of surface sediments from the northwestern Gulf of Mexico: implications for provenance and heavy metal contamination

Armstrong‐Altrin, John S.; Botello, Alfonso V.; Villanueva, Susana; Soto, Luís A.

doi:10.7306/gq.1484

Cited by 46 publications

(24 citation statements)

References 17 publications

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“…Sedimentary successions in pericratonic rift basins preserve the evolutionary history of adjacent cratons and orogenic belts (Dickinson & Suczek, 1979;Dickinson, 1988). Provenance interpretations of these sedimentary successions contribute to the understanding of tectonic setting, climate, extent of weathering and drainage patterns during the time of deposition (Nesbitt & Young, 1982;Algeo & Maynard, 2004;Tribovillard et al 2006;Hofer et al 2013;Verma & Armstrong-Altrin, 2016;Armstrong-Altrin et al 2019). However, temporal provenance shifts often remain untraceable because of their effects being masked by simultaneous sediment supply from multiple sources.…”

Section: Introductionmentioning

confidence: 99%

Tracing multiple sources of sediments using trace element and Nd isotope geochemistry: provenance of the Mesozoic succession in the Kutch Basin, western India

et al. 2020

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An integrated approach involving Sr–Nd isotope, trace and rare earth element analyses tracks multiple sources of the Mesozoic sediments of the Kutch Basin at the western continental margin of India. High (87Sr/86Sr)t (ratio at time of deposition), negative εNd and high concentrations of large-ion lithophile elements (LILEs) indicate the upper continental source. Ratios of Nb/Ta and Zr/Hf suggest sedimentary and felsic igneous sources of sediments. The moderate to high concentration of La, Th and Sc, light rare earth elements (LREE-) enrichment, weak negative Eu anomalies and the relationship between εNd(0) and Th/Sc indicate the dominantly felsic composition of source rocks. However, low contents of Th, low values of (87Sr/86Sr)t and depleted mantle model age TDM < 1600 Ma indicate input from a younger mafic source. Increasing concentrations of Zr, Hf and Nd isotopes and a gradual increase in mean TDM from the older to the younger formations indicate erosional unroofing at the source terrain. The increasing (87Sr/86Sr)t through time relates to increased weathering of the source rock. The overwhelmingly southwesterly palaeocurrent direction of current-generated sedimentary structures, and the mean TDM ages trace suggest source areas of the Kutch Basin to Precambrian rocks in the north and NE of this basin. The TDM ages highlight the dominance of late Palaeoproterozoic source rocks. Nd isotope composition indicates that Proterozoic rocks of Marwar Supergroup and Erinpura Granite, in particular, served as main sediment contributors for the Mesozoic sediments in Kutch. We therefore conclude that the Mesozoic sediments in the Kutch Basin are predominantly of late Palaeoproterozoic age with lesser inputs from rocks of early Mesoproterozoic and early Palaeoproterozoic age.

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Section: Introductionmentioning

confidence: 99%

Tracing multiple sources of sediments using trace element and Nd isotope geochemistry: provenance of the Mesozoic succession in the Kutch Basin, western India

et al. 2020

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“…It indicates the red sediments derived from the terrestrial or continental source rock. The (La/Yb) red teri sediments of the area are of higher values (average 17.75) than the (La/Yb)n values of average chondrite value, and further, the values are equal to the values of (La/ Yb)n of granitoid basement rocks (Armstrong-Altrin et al 2019;Perumal 2017). So, the red sediment may be derived…”

Section: Rare Earth Elementsmentioning

confidence: 79%

“…Rare earth elements generally reside in the fine fraction, such as silt and clay. The clay minerals enriched with alumina and ferric ion may readily accommodate the trivalent rare earth elements (Cullers et al, 1988;Babu 2017;Armstrong-Altrin et al 2019;Perumal and Udayanapillai 2019). The REE plot of the red teri soil from the area shows a slightly high LREE and flat HREE pattern with negative europium anomaly.…”

Section: Rare Earth Elementsmentioning

confidence: 96%

“…These sources may be obtained from the granite and pegmatite source rocks. The high content Ba in sediments is normally derived from barite crystals of syn-sedimentary origin (Armstrong-Altrin et al 2019;Nagarajan et al 2007;Udayanapillai et al 2020). So, the syngenetic deposition of barium concentration may cause for the Ba sources in red teri sediments.…”

Section: Trace Elementsmentioning

confidence: 99%

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Texture, mineralogy and geochemistry of Teri sediments from the Kuthiraimozhi deposit, Southern Tamilnadu, India: implications on provenance, weathering and palaeoclimate

Venu¹,

Velmayil

2021

Arab J Geosci

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The study examines about the red sand dune deposit locally designated as teri deposits; it is an omnipresent geomorphologic feature present in the coastal region of Thoothukudi and Ramanathapuram districts of Tamil Nadu, India. One of the inland teri sand dune outcrops is located around the Kuthiraimozhi village of Thoothukudi district in Tamil Nadu, India. Textural, mineralogical and geochemical studies were carried out in the teri sediments and its compact sandstone outcrops. The sediments are moderately sorted to well-sorted and finely skewed nature which indicates that fluvio-marine depositional environment. Geochemical analysis results of major, trace and rare earth elements for teri deposits help to predict the provenance, weathering status, depositional environment and climate. The geochemical study reveals that the sediments were derived from marine and non-marine sources. Teri sediments are geochemically classified as lithic arenite or wacke. Petrography and X-ray diffraction analysis reveal the predominance of quartz and feldspars along with the accessory minerals like ilmenite, rutile, garnet, magnetite, hematite, zircon, diopside, hypersthenes and biotite. Mineralogical observation illustrates that the teri sediments have originated from the weathering of felsic and mafic source rocks. The Chemical Index of Alteration (CIA) values of sediments represent moderate to the high status of weathering conditions in the source area. The depositional environment indicates that the sediments are fine-grained with high maturity index. Despite that the sediments are formed by fluvio-marine sources, the reddening character in the teri deposits is due to oxidation and leaching of iron-bearing minerals by percolating surface water from high rainfall and groundwater fluctuation of the aquifer under arid and semi-arid climate conditions.

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“…However, provenance studies during the Middle Jurassic in southwestern Fujian remain incomplete in which evidence is lacking in regard to sedimentary detrital zircon U-Pb ages. Besides, many scholars have proposed that major elements, trace elements and rare earth elements (REEs), in sediments can provide important information for the provenance of sediments [27][28][29][30][31][32][33]; especially, some trace and REEs in the mudstone are relatively stable and not affected by weathering and sedimentation, which can reflect the geochemical properties of the provenance well [27]. Therefore, this study presents comparisons of detrital zircon data for sedimentary rocks around the study area during late Paleozoic-early Mesozoic, based on modal analysis, detrital zircon isotopic ages, and element geochemical characteristics of the sedimentary rocks from the Middle Jurassic in southwestern Fujian.…”

Section: Introductionmentioning

confidence: 99%

LA-ICP-MS U–Pb ages of detrital zircons from Middle Jurassic sedimentary rocks in southwestern Fujian: Sedimentary provenance and its geological significance

Kong

Cheng

et al. 2020

Open Geosciences

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In order to determine the tectonic regime change of the early Mesozoic in the South China Block, this study analyzed sedimentary rocks in the Middle Jurassic of southwestern Fujian by modal analysis of sandstones, elemental geochemical analysis of mudstones, and detrital zircons U–Pb dating. The results show that the detrital zircons in Southwestern Fujian mainly consist of Paleoproterozoic to early Mesozoic zircons in the Middle Jurassic. Within the Dongkeng profile of the Zhangping Formation, DK5 sample (lower part) showed a major age peak at ca. 1,848 Ma and two secondary age peaks at ca. 235 and 180 Ma, while DK15 sample (middle part) showed a major age peak at ca. 1,876 Ma and two secondary age peaks at ca. 233 and 190 Ma; the age compositions of these two samples’ were similar. Modal analysis of sandstones indicated that sediments of Zhangping Formation might source from arc orogen and recycled orogen, and element geochemical analysis showed that source rocks of Zhangping Formation might be sedimentary rocks and granites. The Indosinian zircons were mainly derived from the Wuyi region, and the Yanshanian zircons were mainly derived from the Nanling region. The major age group changes from ca. 230 to 220 Ma of the Late Triassic – Early Jurassic to ca. 190 to 180 Ma of the Middle Jurassic in Southwestern Fujian, and main sources changed from Indosinian magmatic rocks in the Late Triassic – Early Jurassic to early Yanshanian magmatic rocks in the Middle Jurassic.

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Geochemistry of surface sediments from the northwestern Gulf of Mexico: implications for provenance and heavy metal contamination

Abstract: is try of sur face sed i ments from the northwest ern Gulf of Mex ico: im pli ca tions for prov e nance and heavy metal con tam i na tion.

Cited by 46 publications

References 17 publications

Tracing multiple sources of sediments using trace element and Nd isotope geochemistry: provenance of the Mesozoic succession in the Kutch Basin, western India

Tracing multiple sources of sediments using trace element and Nd isotope geochemistry: provenance of the Mesozoic succession in the Kutch Basin, western India

Texture, mineralogy and geochemistry of Teri sediments from the Kuthiraimozhi deposit, Southern Tamilnadu, India: implications on provenance, weathering and palaeoclimate

LA-ICP-MS U–Pb ages of detrital zircons from Middle Jurassic sedimentary rocks in southwestern Fujian: Sedimentary provenance and its geological significance

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