Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/3067
AuthorsFlorindo, F.* 
Karner, D. B.* 
Marra, F.* 
TitleRadioisotopic age constraints for Glacial Terminations IX and VII from aggradational sections of the Tiber River delta in Rome, Italy
Issue Date2007
Series/Report no./ 256 (2007)
DOI10.1016/j.epsl.2007.01.014
URIhttp://hdl.handle.net/2122/3067
Keywordsglacial termination
sea level
40Ar/39Ar
Tiber River delta
paleomagnetism
Subject Classification04. Solid Earth::04.04. Geology::04.04.02. Geochronology 
AbstractBuried sedimentary aggradational sections deposited between 800 ka and 600 ka in the Tiber River coastal alluvial plain have been studied using borecores from around Rome. 40Ar/39Ar ages on sanidine and/or leucite from intercalated tephra layers and paleomagnetic investigation of clay sections provide geochronologic constraints on the timing of aggradation of two alluvial sections, demonstrating that they were deposited in response to glacio–eustatic sea level rise caused by Glacial Terminations IX and VII. 40Ar/39Ar age data indicate ages of 802±8 ka (1σ full errors) and 649±3 ka (1σ full errors) for Glacial Terminations IX and VII, respectively, providing a rare test, beyond the range of U-series dating for corals and speleothems (∼500 ka), of the astronomically calibrated timescale developed for oxygen isotope records from deep sea cores.
Appears in Collections:Papers Published / Papers in press

Files in This Item:
File Description SizeFormat 
florindo_EPSL.pdf3.8 MBAdobe PDFView/Open
Show full item record

Page view(s)

75
Last Week
0
Last month
checked on Jun 28, 2017

Download(s)

19
checked on Jun 28, 2017

Google ScholarTM

Check

Altmetric