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Is high obliquity a plausible cause for Neoproterozoic glaciations?
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| Zeitschriftentitel: | Geophysical Research Letters |
|---|---|
| Personen und Körperschaften: | , , , , |
| In: | Geophysical Research Letters, 29, 2002, 23 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
American Geophysical Union (AGU)
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| Schlagwörter: |
| author_facet |
Donnadieu, Yannick Ramstein, Gilles Fluteau, Frederic Besse, Jean Meert, Joseph Donnadieu, Yannick Ramstein, Gilles Fluteau, Frederic Besse, Jean Meert, Joseph |
|---|---|
| author |
Donnadieu, Yannick Ramstein, Gilles Fluteau, Frederic Besse, Jean Meert, Joseph |
| spellingShingle |
Donnadieu, Yannick Ramstein, Gilles Fluteau, Frederic Besse, Jean Meert, Joseph Geophysical Research Letters Is high obliquity a plausible cause for Neoproterozoic glaciations? General Earth and Planetary Sciences Geophysics |
| author_sort |
donnadieu, yannick |
| spelling |
Donnadieu, Yannick Ramstein, Gilles Fluteau, Frederic Besse, Jean Meert, Joseph 0094-8276 1944-8007 American Geophysical Union (AGU) General Earth and Planetary Sciences Geophysics http://dx.doi.org/10.1029/2002gl015902 <jats:p>The main features of the low‐latitude Neoproterozoic glaciations remain the subject of controversial debates concerning possible triggers. Here we use an AGCM coupled with a slab ocean to test one of the earliest and simplest explanation for tropical glaciations: a higher obliquity of the Earth's rotation axis. We show that high obliquity may result in an extensive glaciation during the Sturtian episode (750 Ma), due to the location of continental masses in the tropical areas, but cannot produce a large glaciation in the case of mid to high latitude paleogeographies such as those thought to typify the Varangian‐Vendian episodes (620–580 Ma).</jats:p> Is high obliquity a plausible cause for Neoproterozoic glaciations? Geophysical Research Letters |
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Is high obliquity a plausible cause for Neoproterozoic glaciations? |
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Is high obliquity a plausible cause for Neoproterozoic glaciations? |
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Is high obliquity a plausible cause for Neoproterozoic glaciations? |
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Is high obliquity a plausible cause for Neoproterozoic glaciations? |
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Is high obliquity a plausible cause for Neoproterozoic glaciations? |
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Is high obliquity a plausible cause for Neoproterozoic glaciations? |
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is high obliquity a plausible cause for neoproterozoic glaciations? |
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General Earth and Planetary Sciences Geophysics |
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<jats:p>The main features of the low‐latitude Neoproterozoic glaciations remain the subject of controversial debates concerning possible triggers. Here we use an AGCM coupled with a slab ocean to test one of the earliest and simplest explanation for tropical glaciations: a higher obliquity of the Earth's rotation axis. We show that high obliquity may result in an extensive glaciation during the Sturtian episode (750 Ma), due to the location of continental masses in the tropical areas, but cannot produce a large glaciation in the case of mid to high latitude paleogeographies such as those thought to typify the Varangian‐Vendian episodes (620–580 Ma).</jats:p> |
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| author | Donnadieu, Yannick, Ramstein, Gilles, Fluteau, Frederic, Besse, Jean, Meert, Joseph |
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| description | <jats:p>The main features of the low‐latitude Neoproterozoic glaciations remain the subject of controversial debates concerning possible triggers. Here we use an AGCM coupled with a slab ocean to test one of the earliest and simplest explanation for tropical glaciations: a higher obliquity of the Earth's rotation axis. We show that high obliquity may result in an extensive glaciation during the Sturtian episode (750 Ma), due to the location of continental masses in the tropical areas, but cannot produce a large glaciation in the case of mid to high latitude paleogeographies such as those thought to typify the Varangian‐Vendian episodes (620–580 Ma).</jats:p> |
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| spelling | Donnadieu, Yannick Ramstein, Gilles Fluteau, Frederic Besse, Jean Meert, Joseph 0094-8276 1944-8007 American Geophysical Union (AGU) General Earth and Planetary Sciences Geophysics http://dx.doi.org/10.1029/2002gl015902 <jats:p>The main features of the low‐latitude Neoproterozoic glaciations remain the subject of controversial debates concerning possible triggers. Here we use an AGCM coupled with a slab ocean to test one of the earliest and simplest explanation for tropical glaciations: a higher obliquity of the Earth's rotation axis. We show that high obliquity may result in an extensive glaciation during the Sturtian episode (750 Ma), due to the location of continental masses in the tropical areas, but cannot produce a large glaciation in the case of mid to high latitude paleogeographies such as those thought to typify the Varangian‐Vendian episodes (620–580 Ma).</jats:p> Is high obliquity a plausible cause for Neoproterozoic glaciations? Geophysical Research Letters |
| spellingShingle | Donnadieu, Yannick, Ramstein, Gilles, Fluteau, Frederic, Besse, Jean, Meert, Joseph, Geophysical Research Letters, Is high obliquity a plausible cause for Neoproterozoic glaciations?, General Earth and Planetary Sciences, Geophysics |
| title | Is high obliquity a plausible cause for Neoproterozoic glaciations? |
| title_full | Is high obliquity a plausible cause for Neoproterozoic glaciations? |
| title_fullStr | Is high obliquity a plausible cause for Neoproterozoic glaciations? |
| title_full_unstemmed | Is high obliquity a plausible cause for Neoproterozoic glaciations? |
| title_short | Is high obliquity a plausible cause for Neoproterozoic glaciations? |
| title_sort | is high obliquity a plausible cause for neoproterozoic glaciations? |
| title_unstemmed | Is high obliquity a plausible cause for Neoproterozoic glaciations? |
| topic | General Earth and Planetary Sciences, Geophysics |
| url | http://dx.doi.org/10.1029/2002gl015902 |