摘要:
新疆南雅尔当山震旦系出露层序完整,它与下伏前震旦系呈不整合接触,与上复寒武系为假整合,总厚2017m。根据岩性自上而下划分为汉格尔乔克组、水泉组,育肯沟组、特瑞爱肯组、黄羊沟组、阿勒通沟组和贝义西组,其中贝义西组为火山岩,获同位素年龄为814±97Ma,阿勒通沟组和汉格尔乔克组为冰碛层。
Abstract:
The Sinian System exposed in the Southern Yardang Mountains, Xinjiang, is complete. It has a clear stratigraphie sequence with a total thickness of 2017.0m It overlies unconformably the pre-Sinian and underlain diseonformably the Cambrian. According to the lithology, it may be divided in descending order into the Hangelchaok Formation, Shuiquan Formation, Yudengou Formation, Tereeken Formation, Huangyanggnu Formation, Altungou Formation and Jianyixi Formation. The Jianyixi Formation is represented by volcanic rocks with an isotopic age of 814±97 Ma. The Altungou and Hangelchaok Formations are marked by tillite.
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