An expanded record of Early Cambrian carbon cycling from the Anti-Atlas Margin, Morocco
Citations Over TimeTop 10% of 2005 papers
Abstract
We present a δ 13 C record from the Anti-Atlas mountains of Morocco and place it in the context of a detailed regional tectonostratigraphy. We place the litho- and chemostratigraphic record in a temporal framework using precision UPb zircon geochronology of ashes interbedded with the same carbonate units that provide δ 13 C data. The variations in δ 13 C of carbonate occur on a wide range of time scales, suggesting that different mechanisms are involved, including non-steady state release of isotopically depleted carbon reservoirs on short (<100 000 years) time scales and changes in nutrient recycling and organic carbon burial on longer (≥1 Ma) time scales. Through a correlation with more fossiliferous, albeit condensed, sections in Siberia, we examine the pattern of cyclic δ 13 C variation in the context of the reappearance and diversification of skeletonized metazoa during the Early Cambrian.
Related Papers
- → Thermogenic carbon release from the Central Atlantic magmatic province caused major end-Triassic carbon cycle perturbations(2020)61 cited
- → Assessing the importance of thermogenic degassing from the Karoo Large Igneous Province (LIP) in driving Toarcian carbon cycle perturbations(2021)48 cited
- → Global significance of the carbon cycle in the karst dynamic system: evidence from geological and ecological processes(2018)27 cited
- → Phanerozoic sea-level changes(1993)117 cited
- Detrital Record of Phanerozoic Tectonics in Iran: Evidence From U-Pb Zircon Geochronology(2004)