Mineralogy and geochemistry of Tecolutla and Coatzacoalcos beach sediments, SW Gulf of Mexico

Armstrong‐Altrin, John S.; Madhavaraju, Jayagopal; Vega-Bautista, Fabiola; Ramos-Vázquez, Mayla A.; Pérez-Alvarado, Bárbara Yaneth; Kasper‐Zubillaga, Juan José; Bessa, Armel Zacharie Ekoa

doi:10.1016/j.apgeochem.2021.105103

Cited by 59 publications

(15 citation statements)

References 82 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The transitional trace elements such as Co, Cr, Sc, and V show a notable correlation with Al 2 O 3 (Fig. 9 ), indicating that these elements are partially associated with phyllosilicates (Armstrong-Altrin et al 2015 , 2021a , b ).…”

Section: Resultsmentioning

confidence: 95%

Petrography and geochemistry of beach sediments along the central coast of Cameroon: constraints on paleoweathering, provenance, and tectonic setting

et al. 2022

Self Cite

View full text Add to dashboard Cite

The paleoweathering, provenance, and tectonic setting of the source region were determined with compositional and geochemical analyses of sediments obtained from the beach locations of Yoyo, Mouanko, and Mbiako along the central coast of Cameroon. The beach sediments are medium to coarse-grained and are brown to light brown. Their mineralogy is dominated by quartz and clay minerals with a medium amount of feldspars, rutile, goethite, hematite, and calcite. Moreover, their petrography is made up of quartz and feldspars, with low proportions of augite, apatite, biotite, and zircon. The sediments are classified as sublitharenite, and they are mostly made up of felsic rocks derived from the adjacent Neoproterozoic magmatic and gneissic basement rocks. Weathering indices such as the chemical index of alteration (CIA) and plagioclase index of alteration (PIA) indicated that in this study, the source area’s weathering intensity was moderate. The index of chemical variability (ICV) indicates a low maturity. The geochemistry data revealed passive and rift settings for the beach areas, which are congruent with the local geology.

show abstract

Section: Resultsmentioning

confidence: 95%

Petrography and geochemistry of beach sediments along the central coast of Cameroon: constraints on paleoweathering, provenance, and tectonic setting

et al. 2022

Self Cite

View full text Add to dashboard Cite

show abstract

“…Chemical index of alteration (CIA) and index of compositional variability (ICV) show opposing behavior; CIA values increase with Fe 2 O 3 , Al 2 O 3 , and P 2 O 3 contents, which are linked to clay minerals, while ICV values increase with increase in contents of heavy mineral compound such as Si, Ti, and Zr. For the same reason, the ICV values decrease with increasing LOI values (Armstrong-Altrin et al, 2021).…”

Section: Mineralogical and Geochemical Featuresmentioning

confidence: 84%

Geochemistry of stream sediments from Eséka area (SW Cameroon): implications for surface process assessment and precious metals (Au, Pd, and Pt) exploration

Sababa

Mbesse

Mouko

et al. 2021

J. Sediment. Environ.

Self Cite

View full text Add to dashboard Cite

Stream sediment geochemical data from SW Cameroon were examined as a contribution for surface process study and preliminary exploration of Au, Pd, and Pt. Samples were collected from both active and overbank stream sediments. Samples were analyzed for mineralogy, major and trace elements including rare-earth elements, and Au, Pd, and Pt concentrations. The sediments are mainly made up of quartz, gibbsite, goethite, and kaolinite. Their chemical composition is dominated by SiO 2 , Al 2 O 3 , and Fe 2 O 3 . They are geochemically classified as Fe-sand and derive from moderate to intense weathered sources which are the local surrounding rocks. Variability in the chemical composition could be attributed to weathering and hydrodynamic sorting of sediments during transport. Trace and rare-earth elements are sparsely present in river sediments in the Eséka area. The high Zr contents could reveal high proportion of zircon as a resistant mineral to weathering. The normalized REE patterns show relative HREE enrichment due to the fact that zircon preferentially incorporates HREE. The variable La/ Sc, La/Co, Th/Sc, Zr/Cr, LREE/HREE ratios, and Eu-anomalies suggest that the stream sediments may have originated from mixed felsic and mafic source contributions. Gold, Pd, and Pt have variable contents with the highest contents in the active stream samples. The active stream sediments are the appropriate tools for geochemical Au surveys in humid forest regions. Despite the low contents in stream sediments, some sampling points are favorable for further Au, Pd, and Pt exploration in their upstream sources. The clayey materials should be favorable for Pd and Pt accumulations.

show abstract

“…On the Fe 2 O 3 /Al 2 O 3 –TiO 2 /Al 2 O 3 and TiO 2 /Fe 2 O 3 –TiO 2 /Al 2 O 3 diagrams (Figure 8a,b), all the samples cluster around the average compositions of basalt and andesite sources, revealing that the contributions of mafic and intermediate rocks are significant. Hayashi et al (1997) proposed that Al 2 O 3 /TiO 2 ratios of 21–70, 8–21, and 3–8 represent felsic, intermediate, and mafic igneous rocks, respectively, and these values have recently been widely used in provenance discrimination (Armstrong‐Altrin et al, 2021; Ayala‐Pérez, Armstrong‐Altrin, & Machain‐Castillo, 2021; Ma et al, 2015; Moradi et al, 2016; Wang et al, 2017). The Al 2 O 3 /TiO 2 ratios of the samples in this study vary between 6.0 and 15.6 (avg.…”

Section: Discussionmentioning

confidence: 99%

“…On the TiO 2 –Al 2 O 3 diagram, all of the samples also plot in the fields associated with mafic and intermediate igneous rocks (Figure 8C), reflecting that the source mainly consists of such materials. The TiO 2 /Zr ratio is another useful proxy for provenance identification (Hayashi et al, 1997), and it increases from felsic to mafic igneous rocks (Armstrong‐Altrin et al, 2021; Moradi et al, 2016; Ramos‐Vázquez & Armstrong‐Altrin, 2021). Generally, TiO 2 /Zr ratios are less than 55 for felsic igneous rocks, 200–55 for intermediate rocks, and greater than 200 for mafic rocks (Hayashi et al, 1997).…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Depositional age, provenance, and palaeoenvironment of the Lower Permian mudstones in the Qiangtang Basin, Tibet: Evidence from geochronology and geochemistry

Wang

et al. 2021

Geological Journal

View full text Add to dashboard Cite

The geochronology of tuffaceous sandstone and elemental geochemistry of mudstones in the Lower Permian Zhanjin Formation (well QZ‐5) in the Central Qiangtang Basin were studied to determine their depositional age, provenance, tectonic setting, and depositional conditions. Twenty‐six synchronous igneous zircons from tuffaceous sandstone at 596.5 m have a weighted average U–Pb age of 292.5 ± 2.5 Ma, tentatively constraining the sedimentary age of the Zhanjin Formation to the Early Permian. Low SiO2/Al2O3 and Th/Sc ratios indicate a low sedimentary recycling and compositional maturity for the source area of the Zhanjin Formation mudstones. The low Al2O3/TiO2, moderate‐high Fe2O3/Al2O3, high TiO2/Fe2O3, low‐moderate TiO2/Zr, and moderate Co/Th ratios combined with post‐Archean Australian shale‐normalized rare earth element distributions imply that the provenance of the Zhanjin Formation mudstones was mainly from the mixed mafic and felsic sources that is composed of basalt and rhyolite exposed in the Central Qiangtang Basin. The tectonic discrimination plots, low Fe2O3/TiO2, (La/Ce)N, and high Al2O3/(Al2O3 + Fe2O3) ratios reveal that the studied mudstones mostly formed in rift settings, consistent with the geologic evolutionary history of the Early Permian Qiangtang Basin. Trace element ratios (V/Cr and Cu/Zn), enrichment factors (MoEF), and δCe values combined with sedimentary features indicate that almost all the studied mudstones were deposited in an open marine environment along the continental margin, and were associated with oxic and dysoxic water columns.

show abstract

Mineralogy and geochemistry of Tecolutla and Coatzacoalcos beach sediments, SW Gulf of Mexico

Cited by 59 publications

References 82 publications

Petrography and geochemistry of beach sediments along the central coast of Cameroon: constraints on paleoweathering, provenance, and tectonic setting

Petrography and geochemistry of beach sediments along the central coast of Cameroon: constraints on paleoweathering, provenance, and tectonic setting

Geochemistry of stream sediments from Eséka area (SW Cameroon): implications for surface process assessment and precious metals (Au, Pd, and Pt) exploration

Depositional age, provenance, and palaeoenvironment of the Lower Permian mudstones in the Qiangtang Basin, Tibet: Evidence from geochronology and geochemistry

Contact Info

Product

Resources

About