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|a The Magnitude and Duration of Late Ordovician-Early Silurian Glaciation |h [electronic resource] |y English. |
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|a [S.l.] : |b American Association for the Advancement of Science, |c 2011. |
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|a Science Magazine Volume 331, Issue 903 |y English. |
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|a Please contact the owning institution for licensing and permissions. It is the user's responsibility to ensure use does not violate any third party rights. |
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|a Understanding ancient climate changes is hampered by the inability to disentangle trends
in ocean temperature from trends in continental ice volume. We used carbonate “clumped”
isotope paleothermometry to constrain ocean temperatures, and thereby estimate ice volumes,
through the Late Ordovician–Early Silurian glaciation. We find tropical ocean temperatures of
32° to 37°C except for short-lived cooling by ~5°C during the final Ordovician stage. Evidence for ice sheets spans much of the study interval, but the cooling pulse coincided with a glacial
maximum during which ice volumes likely equaled or exceeded those of the last (Pleistocene)
glacial maximum. This cooling also coincided with a large perturbation of the carbon cycle and
the Late Ordovician mass extinction. |
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|a Electronic reproduction. |c Florida International University, |d 2015. |f (dpSobek) |n Mode of access: World Wide Web. |n System requirements: Internet connectivity; Web browser software. |
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|a dpSobek |c Sea Level Rise |
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|u http://dpanther.fiu.edu/dpService/dpPurlService/purl/FI15062148/00001 |y Click here for full text |
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|a http://dpanther.fiu.edu/sobek/content/FI/15/06/21/48/00001/FI15062148thm.jpg |
