Record ID No. |
5417 |
Author(s) |
Kashiwagi H. , 2016 |
Affiliation |
Department of Applied Chemistry, Faculty of Science and Technology, Keio University, Kanagawa, Japan |
Title |
Atmospheric carbon dioxide and climate change since the Late Jurassic (150 Ma) derived from a global carbon cycle model |
Source. Vol.(no):Page |
Palaeogeography, Palaeoclimatology, Palaeoecology. 454: 82-90 |
Categories |
Mycorrhiza General |
Subjects |
Systematics |
Sub-subjects |
Climate change |
Country |
Japan |
Abstracts |
A global carbon cycle model covering the Late Jurassic Period to Recent (150–0 Ma) with subaerial metamorphism and continental and oceanic hot spot volcanism was constructed. The model's results indicate that the OAE1a and Valanginian OAE (OAE: oceanic anoxic event) in the Cretaceous Period are related to increased atmospheric CO2 level due to hot spot volcanism. Furthermore, the model results based on high-resolution geochemical records demonstrate that decreases in CO2 associated with the termination of the OAE1a, OAE2, and perhaps the Valanginian OAE are attributable to a large amount of organic carbon burial. Moreover, the model results indicate that enhanced continental weathering and carbonate precipitation contributed to the decrease in atmospheric CO2 during the OAE1a period. |