The Miocene: The Future of the Past
The Miocene epoch (23.03–5.33 Ma) was a time interval of global warmth, relative to today. Continental configurations and mountain topography transitioned toward modern conditions, and many flora and fauna evolved into the same taxa that exist today. Miocene climate was dynamic: long periods of earl...
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ftboisestateu:oai:scholarworks.boisestate.edu:geo_facpubs-1597 2023-10-29T02:37:09+01:00 The Miocene: The Future of the Past Kohn, M. J. 2021-04-01T07:00:00Z application/pdf https://scholarworks.boisestate.edu/geo_facpubs/592 https://scholarworks.boisestate.edu/context/geo_facpubs/article/1597/viewcontent/Kohn__Matthew__2021__The_miocene___PUB.pdf unknown ScholarWorks https://scholarworks.boisestate.edu/geo_facpubs/592 https://scholarworks.boisestate.edu/context/geo_facpubs/article/1597/viewcontent/Kohn__Matthew__2021__The_miocene___PUB.pdf http://creativecommons.org/licenses/by-nc-nd/4.0/ Geosciences Faculty Publications and Presentations climate modeling paleobiota paleoclimate paleoenvironments review the Miocene Earth Sciences Geophysics and Seismology text 2021 ftboisestateu 2023-09-29T15:21:55Z The Miocene epoch (23.03–5.33 Ma) was a time interval of global warmth, relative to today. Continental configurations and mountain topography transitioned toward modern conditions, and many flora and fauna evolved into the same taxa that exist today. Miocene climate was dynamic: long periods of early and late glaciation bracketed a ∼2 Myr greenhouse interval—the Miocene Climatic Optimum (MCO). Floras, faunas, ice sheets, precipitation, pCO2, and ocean and atmospheric circulation mostly (but not ubiquitously) covaried with these large changes in climate. With higher temperatures and moderately higher pCO2 (∼400–600 ppm), the MCO has been suggested as a particularly appropriate analog for future climate scenarios, and for assessing the predictive accuracy of numerical climate models—the same models that are used to simulate future climate. Yet, Miocene conditions have proved difficult to reconcile with models. This implies either missing positive feedbacks in the models, a lack of knowledge of past climate forcings, or the need for re-interpretation of proxies, which might mitigate the model-data discrepancy. Our understanding of Miocene climatic, biogeochemical, and oceanic changes on broad spatial and temporal scales is still developing. New records documenting the physical, chemical, and biotic aspects of the Earth system are emerging, and together provide a more comprehensive understanding of this important time interval. Here, we review the state-of-the-art in Miocene climate, ocean circulation, biogeochemical cycling, ice sheet dynamics, and biotic adaptation research as inferred through proxy observations and modeling studies. Text Ice Sheet Boise State University: Scholar Works |
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Boise State University: Scholar Works |
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climate modeling paleobiota paleoclimate paleoenvironments review the Miocene Earth Sciences Geophysics and Seismology |
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climate modeling paleobiota paleoclimate paleoenvironments review the Miocene Earth Sciences Geophysics and Seismology Kohn, M. J. The Miocene: The Future of the Past |
topic_facet |
climate modeling paleobiota paleoclimate paleoenvironments review the Miocene Earth Sciences Geophysics and Seismology |
description |
The Miocene epoch (23.03–5.33 Ma) was a time interval of global warmth, relative to today. Continental configurations and mountain topography transitioned toward modern conditions, and many flora and fauna evolved into the same taxa that exist today. Miocene climate was dynamic: long periods of early and late glaciation bracketed a ∼2 Myr greenhouse interval—the Miocene Climatic Optimum (MCO). Floras, faunas, ice sheets, precipitation, pCO2, and ocean and atmospheric circulation mostly (but not ubiquitously) covaried with these large changes in climate. With higher temperatures and moderately higher pCO2 (∼400–600 ppm), the MCO has been suggested as a particularly appropriate analog for future climate scenarios, and for assessing the predictive accuracy of numerical climate models—the same models that are used to simulate future climate. Yet, Miocene conditions have proved difficult to reconcile with models. This implies either missing positive feedbacks in the models, a lack of knowledge of past climate forcings, or the need for re-interpretation of proxies, which might mitigate the model-data discrepancy. Our understanding of Miocene climatic, biogeochemical, and oceanic changes on broad spatial and temporal scales is still developing. New records documenting the physical, chemical, and biotic aspects of the Earth system are emerging, and together provide a more comprehensive understanding of this important time interval. Here, we review the state-of-the-art in Miocene climate, ocean circulation, biogeochemical cycling, ice sheet dynamics, and biotic adaptation research as inferred through proxy observations and modeling studies. |
format |
Text |
author |
Kohn, M. J. |
author_facet |
Kohn, M. J. |
author_sort |
Kohn, M. J. |
title |
The Miocene: The Future of the Past |
title_short |
The Miocene: The Future of the Past |
title_full |
The Miocene: The Future of the Past |
title_fullStr |
The Miocene: The Future of the Past |
title_full_unstemmed |
The Miocene: The Future of the Past |
title_sort |
miocene: the future of the past |
publisher |
ScholarWorks |
publishDate |
2021 |
url |
https://scholarworks.boisestate.edu/geo_facpubs/592 https://scholarworks.boisestate.edu/context/geo_facpubs/article/1597/viewcontent/Kohn__Matthew__2021__The_miocene___PUB.pdf |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_source |
Geosciences Faculty Publications and Presentations |
op_relation |
https://scholarworks.boisestate.edu/geo_facpubs/592 https://scholarworks.boisestate.edu/context/geo_facpubs/article/1597/viewcontent/Kohn__Matthew__2021__The_miocene___PUB.pdf |
op_rights |
http://creativecommons.org/licenses/by-nc-nd/4.0/ |
_version_ |
1781061570059567104 |