【摘要】 南天山库尔干微地块由基底、盖层和动力变质混杂层组成。基底的岩性为结晶片岩、大理岩及变质杂砂岩夹层，同位素Ｒｂ－Ｓｒ年龄为６０６．３Ｍａ；盖层主要为炭质灰岩和灰岩夹泥砂岩，产有晚元古代的疑源类化石和微古植物碎片（如黑色大面膜片Ｂｒｏｃｈｏｌａｍｉｎａｒｉａｎｉｇｒｉｔａ）；动力变质混杂层主要为糜棱岩化大理岩。库尔干微地块为南天山中间地块的组成部分。更多还原

【Abstract】 The Kuergan micro-massif consists of the basement, cover rock and dynamometamorphic mixtite bed. The basement are composed of crystalline schist, marble and metasandstone interbed. Its Rb-Sr isotope age is 606. 3 Ma. The cover part is mainly carbonaceous limestone and limestone with argillaceous sandstone beds, having the Upper Proterozoic Acritarch and micropalaeobotanic fossils (Brocholaminaria nigrita). The dynamometamorphic mixtite bed is mainly composed of mylonitized marble. The Kuergan micro-massif is the Part of the South Tianshan median mass.更多还原