Land Plant Evolution and Weathering Rate Changes in the Devonian
INTRODUCTION The Devonian was characterized by major changes in both the terrestrial and marine biospheres. Terrestrial ecosystems were marked by large increases in biomass and complexity, evolution of trees and seed plants, appearance of multistoried forests, and formation of deeply weathered soils (Algeo and Scheckler, 1998). Rapid drawdown of atmospheric CO2 resulted in global cooling and, toward the end of the Devonian, continental glaciation. The marine realm was characterized by widespread development of bottomwater anoxia, enhanced organic carbon burial rates, and an extended biotic crisis that decimated tropical marine benthos, especially the stromatoporoid-tabulate coral reef community.
Thomas J Algeo Stephen E Scheckler
Department of Geology, University of Cincinnati, Cincinnati OH 45221-0013, USA Department of Biological Sciences and Geosciences, Virginia Polytechnic Institute and State Universi
国际会议
The International Conference of Geobiology(地球生物学国际研讨会)
武汉
英文
75-78
2010-06-03（万方平台首次上网日期，不代表论文的发表时间）