华北块体南缘上元古界氧碳同位素特征及其沉积环境意义

完善中国晚前寒武纪地层的标准剖面，使其成为国际地层对比的参考标准，是中国地质学家的追 求。华北蓟县剖面和扬子块体三峡剖面一直被视为中国的标准剖面，多学科的研究、特别是生物地层和雪球事 件地层学的研究取得了突破性进展。笔者试图通过化学地层学研究手段，对华北块体南缘豫西地区中-新元古 代地层中碳酸盐岩进行氧碳同位素地球化学研究，试图建立新的扬子块体与华北块体震旦纪地层对比桥梁。同 时，对华北南缘新元古代碳酸盐岩地层的形成环境进行了分析，解释了华北新元古代冰碛岩的时空关系。

Geochemical character of C/O isotope of the Upper Proterozoic from southern margin of North China Block and implication for its depositional environment

The Jixian section in the North China Block and the Yangtze Gorge section in the Yangtze Block are as stratotype sections.The comprehensive research has been achieved,specially,in biostratigraphy and glacial-stratigraphy.The authors try to use geochemical method to study the geochemical stable isotope in the Neoproterozoic carbonate rocks in southern margin of western Henan Province in the North China Block and try to set up a correlation bridge between the Yangtze Block and the North China Block.However,ac...