• 责任者：Wang Meng (Key Laboratory of Orogenic Belts and Crustal Evolution ; Ministry of Education ; School of Earth and Space Sciences ; Peking University ; Beijing 100871 ; China) ; Zhang Jinjiang
• 刊名：Chinese Journal of Geology
• 出版年：2013
• 卷期：48(3)
• 关键词：金红石 ; rutile ; 物源分析 ; provenance analysis ; 库车坳陷 ; Kuqa Depression
• 页码：p.747-761
• 图表：6 illus., 3 tables, 63 refs.
• 分类号：0803
• issnNo：ISSN0563-5020
• isbnNo：CN11-1937/P

     In the present study we focused on electron microprobe analysis of detrital rutiles separated from Mesozoic sandstones along Kuqa river in the Kuqa depression and a Jurassic sandstone in the Bayanbulak Basin. The results show that the proportion of detrital rutiles in Jurassic succession in Bayanbulak Basin derived from metamafic and metapelitic rocks is approximately equal,whereas the detrital rutiles in Mesozoic sandstones along Kuqa river mainly come from metapelitic source. The metamorphic stages of rutiles are mainly amphibolite/elogite facies in both areas, and there are a certain amount of granulitic rutiles. Contents of granulite-facies rutiles in Kuqa depression change with time, with the highest content for Jurassic period, indicating an change for source supply, maybe an input from the southeast. While in the early Cretaceous, content of rutiles of granulite-facies decreased as South Tianshan became the main provenance area due to its rapid uplift during this period.