Surface environmental change investigated by the deep crustal processes at geologic "eon" boundaries

我们在南极洲、斯里兰卡和印度进行了地质野外调查，建议在冈瓦那超大陆进行地质延续。我们采集了基底高级变质岩和表壳层序的岩样。通过对岩石样品的详细研究，得到了新元古代-古生界的大陆碰撞过程和新太古代-古元古代界线的地壳深部与表层沉积岩的联系。

We have conducted geologic field survey at Antarctica, Sri Lanka and India, where geologic continuation has been proposed at Gondwana supercontinent. We have collected rock samples from basement high-grade metamorphic rocks and supracrustal sequences. Based on the detailed investigations of rock samples, we have obtained the continental collision process at Neoproterozoic-Paleozoic boundary and the linkage between deep crust and surface sedimentary rocks at Neoarchaean-Paleoproterozoic boundary.