T Topper, MJ Betts, D Dorjnamjaa, G Li, L Li… - Earth-Science …, 2022 - Elsevier
The diversification of animals during the Cambrian Period is one of the most significant evolutionary events in Earth's history. However, the sequence of events leading to the origin …
MR Saltzman, E Thomas, FM Gradstein - The geologic time scale, 2012 - academia.edu
Variations in the 13C/12C value of total dissolved inorganic carbon (DIC) in the world's oceans through time have been documented through stratigraphic study of marine …
AD Miall - Stratigraphy: A modern synthesis, 2022 - Springer
Stratigraphy is defined as the study of layered rocks. In the context of sedimentary geology in general, and of this book in particular, stratigraphy is the discipline that pulls everything …
A near-continuous, highly dynamic record of Silurian climate has been determined from conodont δ 18 O compositions (δ 18 O phos), representing stratigraphic sections from four …
A Munnecke, Y Zhang, X Liu, J Cheng - Palaeogeography …, 2011 - Elsevier
About 500 samples from 11 Ordovician sections in South China have been analysed for their δ13Ccarb composition. Four sections are located in the Yangtze platform region, the …
Graptoloid evolutionary dynamics show a marked contrast from the Ordovician to the Silurian. Subdued extinction and origination rates during the Ordovician give way, during the …
Abstract The Ordovician 87Sr/86Sr isotope seawater curve is well established and shows a decreasing trend until the mid-Katian. However, uncertainties in calibration of this curve to …
It is well documented that Upper Ordovician and Silurian successions record multiple marine turnover events–including the second-largest mass extinction in the Phanerozoic …