首页|Geochemistry and mineralogy of beach sediments in the northern Gulf of Mexico,Tamaulipas state,Mexico:implication for provenance

Geochemistry and mineralogy of beach sediments in the northern Gulf of Mexico,Tamaulipas state,Mexico:implication for provenance

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Geochemical and mineralogical studies were performed in the La Pesca(LP)and Tesoro Altamira(TA)beach sediments,located in the Tamaulipas state,northern Gulf of Mexico.The main aim of this study is to infer the weathering history and provenance and to discriminate the tectonic environment of the beach sediments.The sediments are composed of quartz with small amounts of accessory minerals such as plagio-clase,calcite,orthoclase,microcline,and zircon.Both beach sediments are classified as fine-grained and very well sorted,however LP has coarse skewed and leptokurtic sediments,whereas TA has fine-skewed and very leptokurtic sediments.The chemical index of weathering(CIW')indicates intense weathering in the source area.The quartz grain microtextures in the LP and TA are classified into mechanical,chemical,and me-chanical/chemical origin.Mechanical features such as fractures,pits,percussion marks,abrasion fatigue,and V-shaped marks favor high-energy littoral,fluvial,subaqueous-marine,and aeolian environments.The chemical features indicate solution pits and crystalline overgrowth,which suggests a silica saturated marine environment.The mechanical/chemical features display adhering particles and elongated depressions suggest formation in a sub-aqueous nearshore marine environment.Major and trace elements-based provenance discrimination diagrams indicate a felsic source derived from the Mesa Central(MC),Sierra Madre Oriental(SMOr)and Oaxaquia terranes.The major and trace element concentrations imply a passive margin setting for the northern Gulf of Mexico,which is consistent with the general geology.

Beach sedimentsGeochemistryMineralogyProvenanceTamaulipasTectonic setting

Mayank Shukla、Sanjeet K.Verma、Mayla A.Ramos-Vázquez、John S.Armstrong-Altrin、Karla R.Hernández-Martínez、Sumit Mishra、Vivek P.Malviya、Héctor Hernández-Mendoza

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Posgrado de la División de Geociencias Aplicadas,Instituto Potosino de Investigación Científica y Tecnológica(IPICYT),Camino a la Presa San José 2055,San Luis Potosí,78216,Mexico

División de Geociencias Aplicadas,Instituto Potosino de Investigación Científica y Tecnológica(IPICYT),Camino a la Presa San José 2055,San Luis Potosí,78216,Mexico

Universidad Nacional Autónoma de México,Instituto de Ciencias del Mar y Limnología,Unidad de Procesos Oceánicos y Costeros,Ciudad Universitaria,Ciudad de México 04510,Mexico

Department of Marine Sciences,Bharathidasan University,Tiruchirappalli,620024,Tamil Nadu,India

Instituto de Geociencias,Universidad Nacional Autónoma de México,Boulevard Juriquilla 3001,76230,Juriquilla,Querétaro,Mexico

Department of Applied Geology,Dr.Harisingh Gour Central University,Sagar,470002,Madhya Pradesh,India

Instituto de Investigación de Zonas Desérticas,Universidad Autónoma de San Luis Potosí,Altair 200,CP 78377,San Luis,S.L.P.,Mexico

Universidad del Centro de México,Capitán Caldera 75,CP 78250,San Luis,S.L.P.,Mexico

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Newton Advanced Fellowship award-The Royal Society,UKNational Council of Humanities Science and Technology(CONAHCYT)Mexico

NA1601161101236

2024

10.1016/j.jop.2024.05.002

古地理学报(英文版)

古地理学报(英文版)

影响因子：0.186
ISSN：
年,卷(期)：2024.13(3)