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

9418192 Derry对澳大利亚新元古代覆盖在两个主要冰川单元上的薄而横向持久的“碳酸盐岩盖层”进行的地层学、沉积学和地球化学综合研究这种碳酸盐岩与新元古代冰川沉积的结合现在被认为是一种全球现象，并且在许多剖面中，冰川向冰川后的过渡表现为同代性。独特的相和明显的13C漂移的广泛联系已被视为同时代的证据。不同的相和明显的13C偏移的广泛联系证明了一种遗传联系，这种联系对新元古代的生物进化和环境变化具有潜在的重大影响，但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.