Basin Evolution and Biostratigraphy of the Lower and Middle Cambrian, Avalonian North America

P.I.S将调查新的证据，证明北美阿瓦隆地区下寒武统和中寒武统的碎屑沉积物不是在稳定的平台上堆积的。跨断块造山带的差异沉降可能对局部堆积速率、沉积完整性、超覆-剥离方向和群落分布产生影响。P.I.S将通过使用小壳化石和传统的三叶虫生物地层学，在纽芬兰东部的下寒武统建立精确的区域内对比。标记床也将被使用。除了扩展小型壳体化石生物地层学和从纽芬兰东部下部到现代寒武纪的沉积构造综合体之外，该项目还将进一步记录早古生代后生动物生命多样化的时间和模式。

P.I.s will investigate new evidence that the clastic sediments of the Lower and Middle Cambrian of Avalonian North America did not accumulate on a stable platform. Differential subsidence across the block-faulted Avalonian orogen may have exerted an influence on local accumulation rates, sedimentary completeness, onlap- offlap direction and distribution of communities. P.I.s will establish precise intra-regional correlations in the Lower Cambrian of eastern Newfoundland through the use of small shelly fossils and traditional trilobite biostratigraphy. Marker beds will also be used. In addition to extending a small shelly fossil biostratigraphy and a synthesis of depositional tectonics from the Lower into the Moddle Cambrian of eastern Newfoundland, this project will further document the timing and pattern of diversification of metazoan life in the early Paleozoic.