{"title":"尼日利亚西北部库巴地区重矿精矿中钛铁矿与磁铁矿比例对金矿找矿的指导意义","authors":"J.M. El-Nafaty","doi":"10.1016/0899-5362(93)90013-G","DOIUrl":null,"url":null,"abstract":"<div><p>Heavy mineral concentrates from stream sediments in the Anka schist belt of NW Nigeria were examined for their ilmenite, magnetite and gold contents. A spatial relationship was found between samples with high ilmenite: magnetite ratios and gold anomalies. The ilmenite may have formed at relatively low temperatures from ulvo-spinel-magnetite exsolution at the same stage of gold mobilization.</p></div>","PeriodicalId":100750,"journal":{"name":"Journal of African Earth Sciences (and the Middle East)","volume":"17 4","pages":"Pages 577-579"},"PeriodicalIF":0.0000,"publicationDate":"1993-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0899-5362(93)90013-G","citationCount":"3","resultStr":"{\"title\":\"The ilmenite: magnetite ratio in heavy mineral concentrates as a guide for gold exploration, Kuba Area, Northwest Nigeria\",\"authors\":\"J.M. El-Nafaty\",\"doi\":\"10.1016/0899-5362(93)90013-G\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Heavy mineral concentrates from stream sediments in the Anka schist belt of NW Nigeria were examined for their ilmenite, magnetite and gold contents. A spatial relationship was found between samples with high ilmenite: magnetite ratios and gold anomalies. The ilmenite may have formed at relatively low temperatures from ulvo-spinel-magnetite exsolution at the same stage of gold mobilization.</p></div>\",\"PeriodicalId\":100750,\"journal\":{\"name\":\"Journal of African Earth Sciences (and the Middle East)\",\"volume\":\"17 4\",\"pages\":\"Pages 577-579\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1993-11-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/0899-5362(93)90013-G\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of African Earth Sciences (and the Middle East)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/089953629390013G\",\"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 (and the Middle East)","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/089953629390013G","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
The ilmenite: magnetite ratio in heavy mineral concentrates as a guide for gold exploration, Kuba Area, Northwest Nigeria
Heavy mineral concentrates from stream sediments in the Anka schist belt of NW Nigeria were examined for their ilmenite, magnetite and gold contents. A spatial relationship was found between samples with high ilmenite: magnetite ratios and gold anomalies. The ilmenite may have formed at relatively low temperatures from ulvo-spinel-magnetite exsolution at the same stage of gold mobilization.