| 初论尾祁秦缝合系 |
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| 关键词:ophiolite suture system Sinian-Early Paleozoic Central Orogenic Belt of China |
| 基金项目:中国科学院知识创新工程重要方向项目（KZCX2-SW-119）；中国科学院卢嘉锡基金资助项目；国家自然科学基金（批准号:49872077和49572153） |
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| A Preliminary Study of the Kunlun-Qilian-Qinling Suture System |
| The Late Neo-Proterozoic-Early Paleozoic suture zones within the Central Orogenic Belt of China can be considered a system-the Kunlun-Qilian-Qinling suture system (KQQ suture system). It is basically divided into the western, central and eastern sectors. The western sector consists of the Kuda-Subashi suture zone, the Mazha-Kangsiwar suture and the central West Kunlun mi-croblock. The central sector covers five suture zones, i. e. ,the Altun, North Qilian, Qaidam northern marginal,Qimantag-Wutuo and East Kunlun southern marginal sutures, in addition to some microblocks such as the mid-south Qilian, Qaidam, Ayakkum and Maqen microblocks. The eastern sector is composed of the Shangdan suture zone, Mianlue suture zone and central Qinling-Dabie microblock. The KQQ suture system experienced① extending-rifting of the Rodinia super-continent in the early-middle Sinian period (about 780 - 600 Ma±); ② the formation and evolution of the KQQ archipelagic ocean during the Late Sinian-Ordovician (about 600-440 Ma ± ); and ③ closing of the KQQ ocean and forming of the KQQ suture system during the Late Ordovician-Late Silurian ( about 440 - 400 Ma ±) . As a system comprising many suture zones and microblocks, the KQQ suture system constitutes the foundation of the Central Orogenic Belt of China. |
| BIAN Qian-tao,ZHAO Da-sheng,YE Zheng-ren,CHANG Cheng-fa,LUO Xiao-quan,GAO Shan-lin.2002.A Preliminary Study of the Kunlun-Qilian-Qinling Suture System[J].Acta Geoscientica Sinica,23(6):501-508. |
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