{"title":"Geology and structural evolution of neoproterozoic rocks of Tahtai Logomti Area, Tigrai, Northern Ethiopia","authors":"Azeb Gebremicale, Mulugeta Alene, Teklay Gidey","doi":"10.1007/s12517-025-12203-7","DOIUrl":null,"url":null,"abstract":"<div><p>The current study examines the metamorphism, petrography characteristics, and geological structures to construct a detailed geological map of the Tahtai Logomti region. The rock types include low-grade metavolcanic, metavolcanoclastic, carbonate, and clastic metasedimentary. Both petrographic description and field studies were conducted to accurately identify the different lithologies, structural features and mineral assemblages. Field and petrographic observations show rocks that have undergone low-grade metamorphism and fall within the lower greenschist facies. Three distinct phases of deformations (D1, D2, and D3) were identified and correlated with the previous classifications. According to the result, the rocks exhibit an NW–SE trend of joints oriented vertically to sub-vertical and a NE-SW trend of foliation, consistent with the regional trend of the Mai-Kenetal syncline. Hydrothermal-induced epidotization, chloritization, and sericitization are common in the study area.</p></div>","PeriodicalId":476,"journal":{"name":"Arabian Journal of Geosciences","volume":"18 2","pages":""},"PeriodicalIF":1.8270,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Arabian Journal of Geosciences","FirstCategoryId":"1085","ListUrlMain":"https://link.springer.com/article/10.1007/s12517-025-12203-7","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"Earth and Planetary Sciences","Score":null,"Total":0}
引用次数: 0
Abstract
The current study examines the metamorphism, petrography characteristics, and geological structures to construct a detailed geological map of the Tahtai Logomti region. The rock types include low-grade metavolcanic, metavolcanoclastic, carbonate, and clastic metasedimentary. Both petrographic description and field studies were conducted to accurately identify the different lithologies, structural features and mineral assemblages. Field and petrographic observations show rocks that have undergone low-grade metamorphism and fall within the lower greenschist facies. Three distinct phases of deformations (D1, D2, and D3) were identified and correlated with the previous classifications. According to the result, the rocks exhibit an NW–SE trend of joints oriented vertically to sub-vertical and a NE-SW trend of foliation, consistent with the regional trend of the Mai-Kenetal syncline. Hydrothermal-induced epidotization, chloritization, and sericitization are common in the study area.
期刊介绍：
The Arabian Journal of Geosciences is the official journal of the Saudi Society for Geosciences and publishes peer-reviewed original and review articles on the entire range of Earth Science themes, focused on, but not limited to, those that have regional significance to the Middle East and the Euro-Mediterranean Zone.
Key topics therefore include; geology, hydrogeology, earth system science, petroleum sciences, geophysics, seismology and crustal structures, tectonics, sedimentology, palaeontology, metamorphic and igneous petrology, natural hazards, environmental sciences and sustainable development, geoarchaeology, geomorphology, paleo-environment studies, oceanography, atmospheric sciences, GIS and remote sensing, geodesy, mineralogy, volcanology, geochemistry and metallogenesis.
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