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Duration and nature of the end-Cryogenian (Marinoan) glaciation
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dc.contributor.author | Prave, Anthony Robert | |
dc.contributor.author | Condon, Daniel J. | |
dc.contributor.author | Hoffmann, Karl Heinz | |
dc.contributor.author | Tapster, Simon | |
dc.contributor.author | Fallick, Anthony Edward | |
dc.date.accessioned | 2017-06-01T23:33:54Z | |
dc.date.available | 2017-06-01T23:33:54Z | |
dc.date.issued | 2016-08-01 | |
dc.identifier.citation | Prave , A R , Condon , D J , Hoffmann , K H , Tapster , S & Fallick , A E 2016 , ' Duration and nature of the end-Cryogenian (Marinoan) glaciation ' , Geology , vol. 44 , no. 8 , pp. 631-634 . https://doi.org/10.1130/G38089.1 | en |
dc.identifier.issn | 0091-7613 | |
dc.identifier.other | PURE: 243472995 | |
dc.identifier.other | PURE UUID: 57e519fa-5159-436a-9987-77a933de155a | |
dc.identifier.other | Scopus: 84980327271 | |
dc.identifier.other | WOS: 000380121500010 | |
dc.identifier.other | ORCID: /0000-0002-4614-3774/work/64033674 | |
dc.identifier.uri | https://hdl.handle.net/10023/10898 | |
dc.description | This work was supported by NERC Isotope Geoscience Facility Steering Committee grant IP-1462-0514. | en |
dc.description.abstract | The end-Cryogenian glaciation (Marinoan) is portrayed commonly as the archetype of snowball Earth, yet its duration and character remain uncertain. Here we report U-Pb zircon ages for two ash beds from widely separated localities of the Marinoan-equivalent Ghaub Formation in Namibia: 639.29 ± 0.26 Ma and 635.21 ± 0.59 Ma. These findings verify, for the first time, the key prediction of the snowball Earth hypothesis for the Marinoan glaciation, i.e., longevity, with a duration of ≥4 m.y. They also show that the nonglacial interlude of Cryogenian time spanned 20 m.y. or less and that glacigenic erosion and sedimentation, and at least intermittent open-water conditions, occurred 4 m.y. prior to termination of the Marinoan glaciation. | |
dc.format.extent | 4 | |
dc.language.iso | eng | |
dc.relation.ispartof | Geology | en |
dc.rights | © 2016 Geological Society of America. This work is made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://dx.doi.org/10.1130/G38089.1 | en |
dc.subject | GE Environmental Sciences | en |
dc.subject | NDAS | en |
dc.subject | BDC | en |
dc.subject | R2C | en |
dc.subject.lcc | GE | en |
dc.title | Duration and nature of the end-Cryogenian (Marinoan) glaciation | en |
dc.type | Journal article | en |
dc.description.version | Postprint | en |
dc.contributor.institution | University of St Andrews. School of Earth & Environmental Sciences | en |
dc.contributor.institution | University of St Andrews. Marine Alliance for Science & Technology Scotland | en |
dc.contributor.institution | University of St Andrews. Scottish Oceans Institute | en |
dc.contributor.institution | University of St Andrews. St Andrews Sustainability Institute | en |
dc.contributor.institution | University of St Andrews. St Andrews Isotope Geochemistry | en |
dc.contributor.institution | University of St Andrews. Earth and Environmental Sciences | en |
dc.contributor.institution | University of St Andrews. School of Geography and Geosciences | en |
dc.identifier.doi | https://doi.org/10.1130/G38089.1 | |
dc.description.status | Peer reviewed | en |
dc.date.embargoedUntil | 2017-06-01 |
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