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Study on characteristics of Mesozoic intrusive rocks in Suolunzhen area, Ulanhot, Inner Mongolia
Pages: 1-8
Year: Issue:  1
Journal: Resources Survey & Environment

Keyword:  Inner MongoliaMesozoic intrusive rockschronologygeochemistrytectonic setting;
Abstract: 内蒙古乌兰浩特索伦镇地区位于大兴安岭中南段。该区中生代侵入岩广泛发育。开展侵入岩的年代学、地球化学特征研究能为深入探讨区域构造背景提供依据。3个样品K—Ar全岩法测年结果(93.39Ma-108.48Ma)证明侵入岩形成于早白垩世,略晚于其南侧同一构造带上的杜尔基地区侵入岩年龄(100.15Ma-120.29Ma),符合太行山-大兴安岭早白垩世侵入岩时代自南向北由老变新的演化趋势。岩石地球化学分析...
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