Geochemistry of deep-sea sediments in two cores retrieved at the mouth of the Coatzacoalcos River delta, western Gulf of Mexico, Mexico

Ramos-Vázquez, Mayla A.; Armstrong‐Altrin, John S.; Rosales-Hoz, Leticia; Machain-Castillo, M. L.; Carranza‐Edwards, Arturo

doi:10.1007/s12517-017-2934-z

Cited by 68 publications

(16 citation statements)

References 76 publications

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“…10). Chem i cal weath er ing may mod ify the geo chem is try and min eral com po si tion of siliciclastic sed i ments dur ing trans port and de po si tion (Nesbitt and Young, 1982;McLennan et al, 1993;Ramos-Vázquez et al, 2017). The chem i cal in dex of alter ation (CIA; Nesbitt and Young, 1982) is a com mon method to eval u ate the re la tion ship be tween al kali and al ka line earth el ements, and the weath er ing his tory of siliciclastic rocks.…”

Section: Geochemistrymentioning

confidence: 99%

Geochemistry of siliciclastic rocks from the Shemshak Group (Upper Triassic–Middle Jurassic), northeastern Alborz, northern Iran: implications for palaeoweathering, provenance, and tectonic setting

Taheri

Jafarzadeh

Armstrong‐Altrin

et al. 2018

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Com bined petrographic and geo chem i cal data of the siliciclastic sed i men tary rocks from the Shemshak Group in the northeast ern Alborz Moun tains, north of Iran are de scribed, to gether with their im pli ca tions for palaeoweathering, their prov enance, and tec tonic set ting. Based on field ob ser va tions and modal com po si tion, the sand stones are clas si fied as litharenites. The chem i cal in dex of al ter ation (CIA) in di cated that the source ter rains un der went a mod er ate in ten sity of chem i cal weath er ing. The in dex of chem i cal vari a tion (ICV) val ues in di cated that the Shemshak Group rocks were im ma ture and re lated to a source area with an ac tive tec tonic re gime. Ma jor, trace and rare earth el e ment (REE) data sug gested the dom i na tion of mixed sed i men tary (re cy cled) and ig ne ous rocks in the source area of the Shemshak Group. Petrographic and geo chem i cal char ac ter is tics of Shemshak Group rocks sug gest an ac tive con ti nen tal mar gin (ACM), which cor re sponds to the col li sion of the Iran plate with the Turan plate.

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Section: Geochemistrymentioning

confidence: 99%

Geochemistry of siliciclastic rocks from the Shemshak Group (Upper Triassic–Middle Jurassic), northeastern Alborz, northern Iran: implications for palaeoweathering, provenance, and tectonic setting

Taheri

Jafarzadeh

Armstrong‐Altrin

et al. 2018

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“…Various weathering indices have been developed to estimate the weathering intensity of the source area, few examples are weathering index of Parker (WIP; Parker, ), chemical index of weathering (CIW; Harnois, ), chemical index of alteration (CIA; Nesbitt & Young, ), Plagioclase index of alteration (PIA; Fedo, Nesbitt, & Young, ), and CIX , a modified index of Harnois () (Garzanti et al, ). These indices were extensively used in various studies to evaluate the climatic conditions and erosional regimes in the source areas (Lee, ; Li et al, ; Ramos‐Vázquez, Armstrong‐Altrin, Rosales‐Hoz, Machain‐Castillo, & Carranza‐Edwards, ; Tapia‐Fernandez, Armstrong‐Altrin, & Selvaraj, ). In fact, a few studies cautioned the application of these indices to infer weathering intensity and demonstrated that various factors such as grain‐size control, hydraulic effects such as suspension sorting, and selective entrainment may influence the final values of the chemical indices of weathering (Garzanti et al, ; Resentini, Goren, Castelltort, & Garzanti, ; Von Eynatten, Tolosana‐Delgado, & Karius, ).…”

Section: Discussionmentioning

confidence: 99%

Provenance discrimination between Atasta and Alvarado beach sands, western Gulf of Mexico, Mexico: Constraints from detrital zircon chemistry and U–Pb geochronology

et al. 2018

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The bulk sand samples and detrital zircons collected from the Atasta and Alvarado beach areas in the southwestern Gulf of Mexico have been analysed for geochemistry and U–Pb ages to constrain their provenance. The index of chemical maturity and SiO2/Al2O3 ratio of the Atasta and Alvarado beach sands indicated low compositional maturity. The chondrite‐normalized REE patterns and Eu anomalies of the Atasta and Alvarado beach sands suggested that the sands were derived from felsic and intermediate igneous rock types, respectively. A wide range in Th and U contents of the Atasta (~1.0–884 ppm and ~39–883 ppm, respectively) and Alvarado (~13–2,641 ppm and ~21–2,457 ppm, respectively) zircons likely indicates that the detrital zircon populations consist of zircons derived from multiple sources. The total rare earth element (ΣREE) content in the Atasta and Alvarado zircons ranges from ~151 to 2,088 ppm and ~154 to 3,580 ppm, respectively. The chondrite‐normalized REE patterns of zircons from the two beach areas show slightly depleted light REE (LREE) and enriched heavy REE (HREE), as well as positive Ce and negative Eu anomalies. A few zircons of Alvarado beach lack a Ce positive anomaly but exhibit a distinct Eu anomaly. The differences in REE patterns among zircons between the two beach areas revealed the variations in the type of source terranes, which supplied zircons to the beach areas. The detrital zircon age distribution for the Atasta beach is homogeneous, showing a prominent Proterozoic peak (~596–2,461 Ma; number of samples n = 62) with few Cenozoic (~10.43–65.2 Ma; n = 4) and Palaeozoic (~380–468 Ma; n = 5) zircons. The zircon U–Pb ages of Alvarado beach revealed Cenozoic (~0.25–63.9 Ma; n = 65), Mesozoic (~67.9–181.2 Ma), Palaeozoic (~252–297 Ma), and Proterozoic (~589–1,501 Ma) age clusters with predominant Cenozoic zircons. The comparison of zircon REE chemistry and geochronological data of this study with published data suggests that the source terranes, which supplied zircons to the Atasta beach, were the Chiapas Massif and Oaxacan complexes, whereas the zircons in the Alvarado beach were derived from the nearby Mexican Volcanic Belt and Eastern Alkaline Province. The provenance variation between the two beach areas was also revealed by the dissimilarities in zircon age clusters.

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“…L. = Lagoon; R. = River literature (Basu et al 2016;Carranza-Edwards et al 2019;Casse et al 2019;Karudu 2019;Men et al 2019;Kettanah et al 2020). Although clastic sediments are affected by factors such as weathering, diagenesis, and mineral fractionation during transport, their mineralogical-geochemical composition is mainly related to the parent rock types and the influence factors of the source (McLennan et al 1993;Basu 2017;Ramos-Vázquez et al 2017Bansal et al 2018;Ndjigui et al 2019;Rivera-Gómez et al 2020). Therefore, the geochemical composition of clastic sediments is also reliable to infer the tectonic setting of a sedimentary basin.…”

Section: Introductionmentioning

confidence: 99%

Detrital zircon U–Pb geochronology and geochemistry of the Riachuelos and Palma Sola beach sediments, Veracruz State, Gulf of Mexico: a new insight on palaeoenvironment

Armstrong‐Altrin

2020

J. Palaeogeogr.

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Zircons are abundant in the beach sediments. In this study, surface microtexture, mineralogy, bulk sediment geochemistry, trace element composition and U–Pb isotopic geochronology of detrital zircons collected from the Riachuelos and Palma Sola beach areas, southwestern Gulf of Mexico were performed to infer the sediment provenance and palaeoenvironment. The zircon microtexture was categorized as mechanically- and/or chemically-induced features. The weathering index values for the Riachuelos (~ 72–77) and Palma Sola (~ 71–74) beach sediments indicated moderate weathering of both of the two source areas. The major and trace element data of bulk sediments suggested passive margin settings for the two areas. The trace elemental ratios and chondrite-normalized rare earth element (REE) patterns of bulk sediments revealed that the sediments were likely sourced by felsic and intermediate igneous rocks. And the zircon Th/U ratios (mostly more than 0.2) and zircon REE patterns (with negative Eu and positive Ce anomalies) suggested a magmatic origin for both of the beach sediments from these two areas. Two distinct zircon age peaks respectively belonging to the Paleozoic and the Cenozoic were identified both in the Riachuelos and Palma Sola beach sediments. Zircon geochronology comparison research between the Riachuelos–Palma Sola beach sediments and potential source areas in SW Gulf of Mexico revealed that the source terrane supplied the Paleozoic zircons of this study was identified as the Mesa Central Province (MCP), and the Cenozoic zircons were transported from the nearby Eastern Alkaline Province (EAP). Moreover, although the Precambrian zircons were very few in the studied sediments, their geochronology and geochemistry results still could infer that they were contributed by the source terranes of Grenvillian igneous suites in the Oaxaca and the Chiapas Massif Complexes.

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Geochemistry of deep-sea sediments in two cores retrieved at the mouth of the Coatzacoalcos River delta, western Gulf of Mexico, Mexico

Cited by 68 publications

References 76 publications

Geochemistry of siliciclastic rocks from the Shemshak Group (Upper Triassic–Middle Jurassic), northeastern Alborz, northern Iran: implications for palaeoweathering, provenance, and tectonic setting

Geochemistry of siliciclastic rocks from the Shemshak Group (Upper Triassic–Middle Jurassic), northeastern Alborz, northern Iran: implications for palaeoweathering, provenance, and tectonic setting

Provenance discrimination between Atasta and Alvarado beach sands, western Gulf of Mexico, Mexico: Constraints from detrital zircon chemistry and U–Pb geochronology

Detrital zircon U–Pb geochronology and geochemistry of the Riachuelos and Palma Sola beach sediments, Veracruz State, Gulf of Mexico: a new insight on palaeoenvironment

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