{"title":"Namama冲断带(莫桑比克)横断面","authors":"Paola Cadoppi, Mario Costa, Rosalino Sacchi","doi":"10.1016/0899-5362(87)90090-X","DOIUrl":null,"url":null,"abstract":"<div><p>A cross section of the Namama Thrust Belt (NTB) in Mozambique is described in some detail. The NTB is a ‘Lurian’ age (<em>circa</em> 1000 Ma) tectono-metamorphic feature of orogen rank. Its structure, on all scales, is dominated by a rotation of the fold axes towards the E-W transport direction, at an angle to the NNE overall trend of the belt. In connection with a high-T metamorphic development, dry assemblages with clinopyroxene and garnet grew and granite was emplaced in the belt and its foreland. The post-kinematic thermal event appears to have encompassed the time span from the Lurian orogeny to the emplacement of early-Paleozoic (‘Pan-African’) granites some 500 Ma ago. The overall geologic evolution of the NTB is discussed, and a possible sequence of events proposed.</p></div>","PeriodicalId":100749,"journal":{"name":"Journal of African Earth Sciences (1983)","volume":"6 4","pages":"Pages 493-500, IN7-IN11, 501-504"},"PeriodicalIF":0.0000,"publicationDate":"1987-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0899-5362(87)90090-X","citationCount":"22","resultStr":"{\"title\":\"A cross section of the Namama Thrust Belt (Mozambique)\",\"authors\":\"Paola Cadoppi, Mario Costa, Rosalino Sacchi\",\"doi\":\"10.1016/0899-5362(87)90090-X\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>A cross section of the Namama Thrust Belt (NTB) in Mozambique is described in some detail. The NTB is a ‘Lurian’ age (<em>circa</em> 1000 Ma) tectono-metamorphic feature of orogen rank. Its structure, on all scales, is dominated by a rotation of the fold axes towards the E-W transport direction, at an angle to the NNE overall trend of the belt. In connection with a high-T metamorphic development, dry assemblages with clinopyroxene and garnet grew and granite was emplaced in the belt and its foreland. The post-kinematic thermal event appears to have encompassed the time span from the Lurian orogeny to the emplacement of early-Paleozoic (‘Pan-African’) granites some 500 Ma ago. The overall geologic evolution of the NTB is discussed, and a possible sequence of events proposed.</p></div>\",\"PeriodicalId\":100749,\"journal\":{\"name\":\"Journal of African Earth Sciences (1983)\",\"volume\":\"6 4\",\"pages\":\"Pages 493-500, IN7-IN11, 501-504\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1987-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/0899-5362(87)90090-X\",\"citationCount\":\"22\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of African Earth Sciences (1983)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/089953628790090X\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of African Earth Sciences (1983)","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/089953628790090X","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A cross section of the Namama Thrust Belt (Mozambique)
A cross section of the Namama Thrust Belt (NTB) in Mozambique is described in some detail. The NTB is a ‘Lurian’ age (circa 1000 Ma) tectono-metamorphic feature of orogen rank. Its structure, on all scales, is dominated by a rotation of the fold axes towards the E-W transport direction, at an angle to the NNE overall trend of the belt. In connection with a high-T metamorphic development, dry assemblages with clinopyroxene and garnet grew and granite was emplaced in the belt and its foreland. The post-kinematic thermal event appears to have encompassed the time span from the Lurian orogeny to the emplacement of early-Paleozoic (‘Pan-African’) granites some 500 Ma ago. The overall geologic evolution of the NTB is discussed, and a possible sequence of events proposed.
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