2025年1月11日 · Cambrian Period, earliest time division of the Paleozoic Era and Phanerozoic Eon, lasting from 538.8 million to 485.4 million years ago. The Cambrian System, named by …

1997年11月1日 · Important topics in Early Cambrian geology are the paleogeography of the Earth's cratons, the chronology of their separation, and evaluating the effects of tectonic …

The Cambrian world was bracketed between two ice ages, one during the late Late Proterozoic and the other during the Ordovician. During these ice ages, the decrease in global …

2022年7月1日 · In the Cambrian, the tectonic paleogeography of the Tarim Basin can be characterized as a single platform sandwiched by two oceans. The west Kunlun rift basin, the …

2002年7月29日 · Distribution of the first macrofossils such as the Late Proterozoic (Vendian) Chuaria, Cloudina and the Ediacaran biota as well as the distribution of the Early Cambrian …

2025年1月11日 · Cambrian paleogeography Distribution of landmasses, mountainous regions, shallow seas, and deep ocean basins during the Late Cambrian. Included in the …

The Cambrian (/ ˈ k æ m b r i. ə n, ˈ k eɪ m-/ KAM-bree-ən, KAYM-) is the first geological period of the Paleozoic Era, and the Phanerozoic Eon. [5] The Cambrian lasted 51.95 million years from …

2023年2月1日 · Widespread evaporite deposits were developed in the lower Cambrian succession in the North China Craton (NCC), which could provide critical constraints on the …

2014年5月23日 · Here we report a continuous astronomical signal detected as geochemical variations (1 mm resolution) in the late Cambrian Alum Shale Formation that is used to …

2004年2月1日 · Fossils from four intervals, late Middle Cambrian, early and late Tremadoc and late Arenig-early Llanvirn, permit correlation of strata and events across the ...