Collaborative Research: Origin and Isotopic Signature of Neoproterozoic Post-Glacial Cap Carbonates, Australia

9418192德里 对澳大利亚新元古代两个主要冰川单元上覆盖的薄而横向持久的“碳酸盐帽”岩进行综合地层学、沉积学和地球化学研究。 这种碳酸盐岩与新元古代冰川沉积物的结合现在被认为是一种全球性现象，在许多剖面上，冰川到冰后期的过渡似乎是同时代的。 独特的相和明显的13 C偏移的广泛关联已被视为同时代的证据。 独特的相和明显的13 C漂移的广泛关联主张的遗传联系，在新元古代的时间，生物进化和环境变化的潜在重大影响的联系，但这是尚未得到很好的理解。

9418192 Derry An integrated stratigraphic, sedimentological and geochemical study of thin but laterally persistent "cap carbonate" rocks that overlie each of two main glacial units in the Neoproterozoic of Australia. The association of such carbonate rocks with glacial deposits in the Neoproterozoic is now recognized as a global phenomenon, and in many sections the glacial to post-glacial transition appears to contemporaneity. The widespread association of distinctive facies and pronounced 13C excursions that has been taken as evidence for contemporaneity. The widespread association of distinctive facies and pronounced 13C excursions argues for a genetic link, a link that has potentially major implications for biological evolution and environmental change in Neoproterozoic time, but which is not yet well understood.