A time like our own? Radioisotopic calibration of the Ordovician greenhouse to icehouse transition

Keyphrases

• Greenhouse 100%
• Ordovician 100%
• Icehouse 100%
• 40Ar-39Ar Age 80%
• Bentonite 80%
• Radioisotopic Age 60%
• Biostratigraphic 60%
• Sanidine 60%
• U-Pb Geochronology 40%
• Late Ordovician 40%
• Conodont Zone 40%
• Isotopic Carbon 40%
• North America 20%
• Volcanism 20%
• Marine Strata 20%
• Age Distribution 20%
• Phenocrysts 20%
• Sediment Accumulation 20%
• Age Determination 20%
• Speciation 20%
• U-Pb Age 20%
• Aging Model 20%
• U-Pb 20%
• Speciation Events 20%
• Ash Beds 20%
• North Atlantic 20%
• Analytical Uncertainty 20%
• Weighted Mean 20%
• Biogeography 20%
• Numerical Age 20%
• Apparent Age 20%
• Midcontinent 20%
• Cenozoic 20%
• Temporal Control 20%
• Sweden 20%
• Taconic 20%
• Laser Fusion 20%
• Conodonts 20%
• Biostratigraphic Zonation 20%
• Primary Control 20%
• Ocean Response 20%
• Decay Constant 20%
• Geomorphic Response 20%
• Quasi-continuous 20%
• Graptolites 20%
• Linear Interpolation 20%
• Upper Mississippi Valley 20%
• High-order Control 20%
• Follow-up Control 20%
• Point Order 20%
• Cambrian Explosion 20%
• Polar Ice Sheets 20%
• Kinnekulle 20%
• Cenozoic Era 20%
• Temporal Distortion 20%
• Graptolite Zone 20%

Earth and Planetary Sciences

• Ordovician 100%
• Bentonite 100%
• Sanidine 75%
• Interpolation 75%
• Conodont 75%
• Geochronology 50%
• Late Ordovician 50%
• Graptolite 50%
• Volcanism 25%
• Age Structure 25%
• Phenocryst 25%
• North Atlantic 25%
• Ice Sheet 25%
• Zonation 25%
• Boundary Condition 25%
• Biogeography 25%
• Chorology 25%
• Laser Fusion 25%
• Mississippi 25%
• Sweden 25%
• Cenozoic Era 25%
• Ordovician Period 25%