大西洋西北墨西哥湾海岸沉积物源区识别：来自地球化学和U-Pb碎屑锆石年代学的约束

IF 1.7 4区地球科学 Q3 GEOSCIENCES, MULTIDISCIPLINARY

Journal of South American Earth Sciences Pub Date : 2025-03-25 DOI:10.1016/j.jsames.2025.105496

Mayank Shukla , Sanjeet K. Verma , John S. Armstrong-Altrin , Mayla A. Ramos-Vázquez , Sumit Mishra , Elson P. Oliveira , Eduardo González-Partida , Héctor Hernández-Mendoza , Vivek P. Malviya

{"title":"大西洋西北墨西哥湾海岸沉积物源区识别：来自地球化学和U-Pb碎屑锆石年代学的约束","authors":"Mayank Shukla , Sanjeet K. Verma , John S. Armstrong-Altrin , Mayla A. Ramos-Vázquez , Sumit Mishra , Elson P. Oliveira , Eduardo González-Partida , Héctor Hernández-Mendoza , Vivek P. Malviya","doi":"10.1016/j.jsames.2025.105496","DOIUrl":null,"url":null,"abstract":"<div><div>This study investigated mineralogy and bulk sediment geochemistry of 24 sediment samples, and U-Pb ages of 200 zircons retrieved from the Tamiahua beach, NW Gulf of Mexico. The study aims to infer the provenance and possible source terranes supplying sediments to the beach area. The XRD and SEM-EDS studies reveal that the sediments are associated with quartz, plagioclase, calcite, and microcline. The Chemical Index of Weathering (CIW'), Th/U and Ba/Sr ratios (>92, 3.75, and 2.27, respectively) indicate high intensity of weathering in the source region. The major as well as trace element-based diagrams along with elemental ratios of TiO<sub>2</sub>/Zr (∼15–35), Al<sub>2</sub>O<sub>3</sub>/TiO<sub>2</sub> (∼120–312), La/Sc (5.31–6.01), La/Co (4.27–5.64), Th/Sc (0.96–1.06), and Cr/Th (3.04–16.24) suggest that the sediments are derived from felsic rocks.</div><div>The Th/U ratios of Tamiahua zircons indicate an igneous origin. The chondrite normalized rare earth elements (REE) patterns exhibit positive Ce and negative Eu anomalies and are depleted in light rare earth elements (LREE) and enriched in heavy rare earth elements (HREE). The sediments are dominated with Proterozoic Eon (Mesoproterozoic; 1053.95–1502.36 Ma), Mesozoic Era (Jurassic; 145.42–179.19 Ma and Cretaceous; 68.84–124.45 Ma), and Cenozoic Era (Eocene; 34.08–54.21 Ma and Oligocene; 25.39–33.71 Ma) zircons indicating their derivation from heterogenous source. The Proterozoic zircons in Tamiahua beach sediments are possibly contributed by the Mesa Central Province, which contains zircons from Chiapas and Oaxacan Massif complexes as well as Granjeno schist and Tamatán group from Sierra Madre Oriental Province. Mesozoic zircons are likely contributed by multiple sources, including undifferentiated turbidites of Mesa Central and Zacatecas, Caracol, San Felipe formations and Huizachal group of Sierra Madre Oriental and from Eastern Alkaline Provinces. Similarly, the Cenozoic zircons are supplied by the felsic to intermediate volcanic rocks and granitoids from the Mesa Central Province. The sediment transport and distribution to the beach area is facilitated by the rivers and their tributaries that flow from the source terranes. The results of this study also reveal a passive margin setting for the northwestern Gulf of Mexico.</div></div>","PeriodicalId":50047,"journal":{"name":"Journal of South American Earth Sciences","volume":"158 ","pages":"Article 105496"},"PeriodicalIF":1.7000,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Identification of source terranes of beach sediments from the NW Gulf of Mexico, Atlantic ocean: Constraints from geochemistry and U–Pb detrital zircon geochronology\",\"authors\":\"Mayank Shukla , Sanjeet K. Verma , John S. Armstrong-Altrin , Mayla A. Ramos-Vázquez , Sumit Mishra , Elson P. Oliveira , Eduardo González-Partida , Héctor Hernández-Mendoza , Vivek P. Malviya\",\"doi\":\"10.1016/j.jsames.2025.105496\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>This study investigated mineralogy and bulk sediment geochemistry of 24 sediment samples, and U-Pb ages of 200 zircons retrieved from the Tamiahua beach, NW Gulf of Mexico. The study aims to infer the provenance and possible source terranes supplying sediments to the beach area. The XRD and SEM-EDS studies reveal that the sediments are associated with quartz, plagioclase, calcite, and microcline. The Chemical Index of Weathering (CIW'), Th/U and Ba/Sr ratios (>92, 3.75, and 2.27, respectively) indicate high intensity of weathering in the source region. The major as well as trace element-based diagrams along with elemental ratios of TiO<sub>2</sub>/Zr (∼15–35), Al<sub>2</sub>O<sub>3</sub>/TiO<sub>2</sub> (∼120–312), La/Sc (5.31–6.01), La/Co (4.27–5.64), Th/Sc (0.96–1.06), and Cr/Th (3.04–16.24) suggest that the sediments are derived from felsic rocks.</div><div>The Th/U ratios of Tamiahua zircons indicate an igneous origin. The chondrite normalized rare earth elements (REE) patterns exhibit positive Ce and negative Eu anomalies and are depleted in light rare earth elements (LREE) and enriched in heavy rare earth elements (HREE). The sediments are dominated with Proterozoic Eon (Mesoproterozoic; 1053.95–1502.36 Ma), Mesozoic Era (Jurassic; 145.42–179.19 Ma and Cretaceous; 68.84–124.45 Ma), and Cenozoic Era (Eocene; 34.08–54.21 Ma and Oligocene; 25.39–33.71 Ma) zircons indicating their derivation from heterogenous source. The Proterozoic zircons in Tamiahua beach sediments are possibly contributed by the Mesa Central Province, which contains zircons from Chiapas and Oaxacan Massif complexes as well as Granjeno schist and Tamatán group from Sierra Madre Oriental Province. Mesozoic zircons are likely contributed by multiple sources, including undifferentiated turbidites of Mesa Central and Zacatecas, Caracol, San Felipe formations and Huizachal group of Sierra Madre Oriental and from Eastern Alkaline Provinces. Similarly, the Cenozoic zircons are supplied by the felsic to intermediate volcanic rocks and granitoids from the Mesa Central Province. The sediment transport and distribution to the beach area is facilitated by the rivers and their tributaries that flow from the source terranes. The results of this study also reveal a passive margin setting for the northwestern Gulf of Mexico.</div></div>\",\"PeriodicalId\":50047,\"journal\":{\"name\":\"Journal of South American Earth Sciences\",\"volume\":\"158 \",\"pages\":\"Article 105496\"},\"PeriodicalIF\":1.7000,\"publicationDate\":\"2025-03-25\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of South American Earth Sciences\",\"FirstCategoryId\":\"89\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0895981125001580\",\"RegionNum\":4,\"RegionCategory\":\"地球科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"GEOSCIENCES, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of South American Earth Sciences","FirstCategoryId":"89","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0895981125001580","RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"GEOSCIENCES, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

摘要

本文研究了墨西哥湾西北部Tamiahua海滩24个沉积物样品的矿物学和整体沉积物地球化学特征，以及200颗锆石的U-Pb年龄。研究的目的是推断为滩区提供沉积物的物源和可能的物源地体。XRD和SEM-EDS分析表明，沉积物主要由石英、斜长石、方解石和微斜长石组成。化学风化指数（CIW）、Th/U和Ba/Sr比值（>92、3.75和2.27）表明烃源区风化强度较大。TiO2/Zr（~ 15 ~ 35）、Al2O3/TiO2（~ 120 ~ 312）、La/Sc（5.31 ~ 6.01）、La/Co（4.27 ~ 5.64）、Th/Sc（0.96 ~ 1.06）、Cr/Th（3.04 ~ 16.24）的主元素图和微量元素图表明沉积物来源于长英质岩。Tamiahua锆石Th/U比值显示其成因为火成岩。球粒陨石归一化稀土元素（REE）模式表现为Ce正、Eu负异常，轻稀土元素（LREE）贫，重稀土元素（HREE）富。沉积物以元古代（中元古代）为主；1053.95-1502.36 Ma)，中生代(侏罗纪；145.42-179.19 Ma与白垩纪；68.84-124.45 Ma)和新生代(始新世；34.08-54.21马渐新世；25.39 ~ 33.71 Ma)锆石，表明其来源非均质。Tamiahua海滩沉积物的元古代锆石可能是由Mesa Central Province贡献的，其中含有来自Chiapas和Oaxacan地块杂岩的锆石，以及来自Sierra Madre Oriental Province的Granjeno片岩和Tamatán群。中生代锆石可能有多种来源，包括中部梅萨（Mesa Central）和萨卡特卡斯（Zacatecas）的未分异浊积岩、卡拉科尔（Caracol）组、圣费利佩（San Felipe）组和东部马德雷东部（Sierra Madre Oriental）的Huizachal组和东部Alkaline省份。同样，新生代锆石由中台地省的长英质至中间火山岩和花岗岩类提供。从源区流出的河流及其支流促进了沉积物向滩涂地区的搬运和分布。本研究的结果还揭示了墨西哥湾西北部的被动边缘设置。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Identification of source terranes of beach sediments from the NW Gulf of Mexico, Atlantic ocean: Constraints from geochemistry and U–Pb detrital zircon geochronology

查看原文本刊更多论文

Identification of source terranes of beach sediments from the NW Gulf of Mexico, Atlantic ocean: Constraints from geochemistry and U–Pb detrital zircon geochronology

This study investigated mineralogy and bulk sediment geochemistry of 24 sediment samples, and U-Pb ages of 200 zircons retrieved from the Tamiahua beach, NW Gulf of Mexico. The study aims to infer the provenance and possible source terranes supplying sediments to the beach area. The XRD and SEM-EDS studies reveal that the sediments are associated with quartz, plagioclase, calcite, and microcline. The Chemical Index of Weathering (CIW'), Th/U and Ba/Sr ratios (>92, 3.75, and 2.27, respectively) indicate high intensity of weathering in the source region. The major as well as trace element-based diagrams along with elemental ratios of TiO₂/Zr (∼15–35), Al₂O₃/TiO₂ (∼120–312), La/Sc (5.31–6.01), La/Co (4.27–5.64), Th/Sc (0.96–1.06), and Cr/Th (3.04–16.24) suggest that the sediments are derived from felsic rocks.

The Th/U ratios of Tamiahua zircons indicate an igneous origin. The chondrite normalized rare earth elements (REE) patterns exhibit positive Ce and negative Eu anomalies and are depleted in light rare earth elements (LREE) and enriched in heavy rare earth elements (HREE). The sediments are dominated with Proterozoic Eon (Mesoproterozoic; 1053.95–1502.36 Ma), Mesozoic Era (Jurassic; 145.42–179.19 Ma and Cretaceous; 68.84–124.45 Ma), and Cenozoic Era (Eocene; 34.08–54.21 Ma and Oligocene; 25.39–33.71 Ma) zircons indicating their derivation from heterogenous source. The Proterozoic zircons in Tamiahua beach sediments are possibly contributed by the Mesa Central Province, which contains zircons from Chiapas and Oaxacan Massif complexes as well as Granjeno schist and Tamatán group from Sierra Madre Oriental Province. Mesozoic zircons are likely contributed by multiple sources, including undifferentiated turbidites of Mesa Central and Zacatecas, Caracol, San Felipe formations and Huizachal group of Sierra Madre Oriental and from Eastern Alkaline Provinces. Similarly, the Cenozoic zircons are supplied by the felsic to intermediate volcanic rocks and granitoids from the Mesa Central Province. The sediment transport and distribution to the beach area is facilitated by the rivers and their tributaries that flow from the source terranes. The results of this study also reveal a passive margin setting for the northwestern Gulf of Mexico.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

Journal of South American Earth Sciences 地学-地球科学综合

CiteScore

3.70

自引率

22.20%

发文量

364

审稿时长

6-12 weeks

期刊介绍： Papers must have a regional appeal and should present work of more than local significance. Research papers dealing with the regional geology of South American cratons and mobile belts, within the following research fields: -Economic geology, metallogenesis and hydrocarbon genesis and reservoirs. -Geophysics, geochemistry, volcanology, igneous and metamorphic petrology. -Tectonics, neo- and seismotectonics and geodynamic modeling. -Geomorphology, geological hazards, environmental geology, climate change in America and Antarctica, and soil research. -Stratigraphy, sedimentology, structure and basin evolution. -Paleontology, paleoecology, paleoclimatology and Quaternary geology. New developments in already established regional projects and new initiatives dealing with the geology of the continent will be summarized and presented on a regular basis. Short notes, discussions, book reviews and conference and workshop reports will also be included when relevant.