Keyphrases
Permian-Triassic Boundary
100%
Global Carbon Cycle
100%
Carbon Isotope Excursion
100%
Carbon Cycle Perturbation
100%
North China
100%
Organic Carbon Isotopes
100%
Carbon Isotope Record
40%
Organic Matter
40%
Permian-Triassic
40%
Carbon Isotopes
40%
Permian-Triassic Transitional Beds
40%
Negative Carbon Isotope Excursion
40%
High-resolution
20%
Carbonate
20%
Atmospheric CO2
20%
Middle Part
20%
Carbon Cycle Change
20%
Isotope Profile
20%
End-Permian Mass Extinction
20%
End-Permian
20%
CO2 Sources
20%
Phanerozoic
20%
Environmental Perturbations
20%
Permian-Triassic Transition
20%
Negative Shift
20%
Meishan
20%
Stratotype
20%
Marine Sequences
20%
Terrestrial Facies
20%
Sunjiagou Formation
20%
Isotopic Study
20%
Oceanic Sources
20%
Post-carbon
20%
Biotic Crisis
20%
Secular Variation
20%
Continental Facies
20%
Earth and Planetary Sciences
China
100%
Carbon 14
100%
Global Carbon Cycle
100%
Permian-Triassic Boundary
100%
Organic Carbon
100%
Permian
58%
Organic Matter
16%
Atmospherics
8%
Mass Extinction
8%
Phanerozoic
8%
Stratotype
8%
Secular Variation
8%
Carbon Dioxide
8%