| Mid-Pliocene sea level and continental ice volume based on coupled benthic Mg/Ca palaeotemperatures and oxygen isotopes. | |
| | |
MedLine Citation:
|
PMID: 18854304 Owner: NLM Status: PubMed-not-MEDLINE |
Abstract/OtherAbstract:
|
Ostracode magnesium/calcium (Mg/Ca)-based bottom-water temperatures were combined with benthic foraminiferal oxygen isotopes in order to quantify the oxygen isotopic composition of seawater, and estimate continental ice volume and sea-level variability during the Mid-Pliocene warm period, ca 3.3-3.0Ma. Results indicate that, following a low stand of approximately 65m below present at marine isotope stage (MIS) M2 (ca 3.3Ma), sea level generally fluctuated by 20-30m above and below a mean value similar to present-day sea level. In addition to the low-stand event at MIS M2, significant low stands occurred at MIS KM2 (-40 m), G22 (-40m) and G16 (-60m). Six high stands of +10m or more above present day were also observed; four events (+10, +25,+15 and +30 m) from MIS M1 to KM3, a high stand of +15m at MIS K1, and a high stand of +25m at MIS G17. These results indicate that continental ice volume varied significantly during the Mid-Pliocene warm period and that at times there were considerable reductions of Antarctic ice. |
| | |
Authors:
|
Gary S Dwyer; Mark A Chandler |
Related Documents
:
|
15694594 - Biochemical composition of ovary, embryo, and hepatopancreas in the grapsoid crabs arma... 19444204 - The life of diatoms in the world's oceans. 2337984 - Chemiluminescent measurement of total urinary nitrogen for accurate calculation of nitr... 1366394 - Nutritional control of actinorhodin production by streptomyces coelicolor a3(2): suppre... 5530984 - Schedule-induced aggression as a function of fixed-ratio value. 7751834 - Procurement time as a determinant of meal frequency and meal duration. |
Publication Detail:
|
Type: Journal Article |
Journal Detail:
|
Title: Philosophical transactions. Series A, Mathematical, physical, and engineering sciences Volume: 367 ISSN: 1364-503X ISO Abbreviation: Philos Trans A Math Phys Eng Sci Publication Date: 2009 Jan |
Date Detail:
|
Created Date: 2008-11-25 Completed Date: 2009-05-11 Revised Date: 2013-04-24 |
Medline Journal Info:
|
Nlm Unique ID: 101133385 Medline TA: Philos Trans A Math Phys Eng Sci Country: England |
Other Details:
|
Languages: eng Pagination: 157-68 Citation Subset: - |
Affiliation:
|
Division of Earth and Ocean Sciences, Nicholas School of the Environment, Duke University, Durham, NC 27708, USA. gary.dwywer@duke.edu |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Mid-Pliocene equatorial Pacific sea surface temperature reconstruction: a multi-proxy perspective.
Next Document: Discovery and validation of novel peptide agonists for G-protein-coupled receptors.