Articles | Volume 17, issue 1
Clim. Past, 17, 229–239, 2021
https://doi.org/10.5194/cp-17-229-2021
Clim. Past, 17, 229–239, 2021
https://doi.org/10.5194/cp-17-229-2021

Research article 18 Jan 2021

Research article | 18 Jan 2021

Exploring a link between the Middle Eocene Climatic Optimum and Neotethys continental arc flare-up

Annique van der Boon et al.

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Cited articles

Allen, M. B. and Armstrong, H. A.: Arabia – Eurasia collision and the forcing of mid-Cenozoic global cooling, Palaeogeogr. Palaeocl., 265, 52–58, https://doi.org/10.1016/j.palaeo.2008.04.021, 2008. 
Amini, B. and Amini Chehragh, M. R.: Geological Map of Iran 1:100.000 Series Sheet 2555 – Kajan, Geological Survey of Iran, Tehran, 2001. 
Amini Chehragh, M. R. and Ghalamghash, J.: Geological Map of Iran 1:100.000 Series Sheet 7162 – Meyamey, Geological Survey of Iran, Tehran, available at: https://shop.geospatial.com/product/03-IRAB-367, last access: 11 January 2021. 
Arvin, M., Pan, Y., Dargahi, S., Malekizadeh, A., and Babaei, A.: Petrochemistry of the Siah-Kuh granitoid stock southwest of Kerman, Iran: Implications for initiation of Neotethys subduction, J. Asian Earth Sci., 30, 474–489, https://doi.org/10.1016/j.jseaes.2007.01.001, 2007. 
Asiabanha, A. and Foden, J.: Post-collisional transition from an extensional volcano-sedimentary basin to a continental arc in the Alborz Ranges, N-Iran, Lithos, 148, 98–111, https://doi.org/10.1016/j.lithos.2012.05.014, 2012. 
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Short summary
40.5 million years ago, Earth's climate warmed, but it is unknown why. Enhanced volcanism has been suggested, but this has not yet been tied to a specific region. We explore an increase in volcanism in Iran. We dated igneous rocks and compiled ages from the literature. We estimated the volume of igneous rocks in Iran in order to calculate the amount of CO2 that could have been released due to enhanced volcanism. We conclude that an increase in volcanism in Iran is a plausible cause of warming.