Climate cycling on early Mars caused by the carbonate-silicate cycle
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- 作者：Natasha E. Batalhaa ; b ; c ; neb149@psu.edu" class="auth_mail" title="E-mail the corresponding author ; Ravi Kumar Kopparapuc ; d ; e ; f ; Jacob Haqq-Misrac ; d ; James F. Kastingb ; c ; g
- 关键词：Mars ; martian climate ; valley formation
- 刊名：Earth and Planetary Science Letters
- 出版年：2016
- 出版时间：1 December 2016
- 年：2016
- 卷：455
- 期：Complete
- 页码：7-13
- 全文大小：774 K
文摘
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A cold early Mars was warmed episodically for ∼10 Myr at a time by an H2–CO2 greenhouse.
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Volcanic outgassing rates comparable to those on modern Earth are required.
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High H2 outgassing rates are consistent with evidence for a highly reduced martian mantle.
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Our hypothesis can be tested by better establishing the time scale for valley formation.