Lavelle, Mark et al. (2002): Strontium isotope dating of barnacle fragments; Antarctic Peninsula Site 1103

Leg/Site/Hole:
ODP 178
ODP 178 1103
Identifier:
2003-022422
georefid
10.2973/odp.proc.sr.178.211.2001
doi
Creator:
Lavelle, Mark
British Antarctic Survey, Cambridge, United Kingdom
author
Barker, Peter F.
Istituto Nazionale di Oceanografia e di Geofisica Sperimentale, Italy
author
Osterman, Lisa E.
Ocean Drilling Program, United States
author
Identification:
Strontium isotope dating of barnacle fragments; Antarctic Peninsula Site 1103
2002
In: Baker, Peter F. (editor), Camerlenghi, Angelo (editor), Acton, Gary D. (editor), Brachfeld, Stefanie A., Cowan, Ellen A., Daniels, James, Domack, Eugene W., Escutia, Carlota, Evans, Andrew J., Eyles, Nicholas, Guyodo, Yohan J. B., Hatfield, Kate L., Iorio, Marina, Iwai, Masao, Kyte, Frank T., Lauer, Christine, Maldonado, Andres, Moerz, Tobias, Osterman, Lisa E., Pudsey, Carol J., Schuffert, Jeffrey D., Sjunneskog, Charlotte M., Weinheimer, Amy L., Williams, Trevor, Winter, Diane M., Wolf-Welling, Thomas C. W., Ramsay, Anthony T. S. (editor), Proceedings of the Ocean Drilling Program, scientific results, Antarctic glacial history and sea-level change; covering Leg 178 of the cruises of the drilling vessel JOIDES Resolution; Punta Arenas, Chile, to Cape Town, South Africa; sites 1095-1103; 5 February-9 April 1998
Texas A&M University, Ocean Drilling Program, College Station, TX, United States
178
Strontium isotope ratios from multiple plates of two barnacle fragments from Site 1103 (Ocean Drilling Program Leg 178) provide maximum age estimates for the oldest glacial sedimentary package drilled. Three moderately preserved barnacle fragments from 262.63 meters below seafloor (mbsf) yielded a mean best-fit age of 7.4 Ma. A single, well-preserved fragment from the same horizon yielded a best-fit age of 12.2 Ma. Two moderately preserved fragments from 262.98 mbsf yielded a mean best-fit age of 7.8 Ma. The calculated mean strontium ages of 7.8 and 7.4 Ma agree well with the diatom estimates of 8.68 to 5.89 Ma for the underlying sediments.
English
Serial
Coverage:Geographic coordinates:
North:-63.5958
West:-65.2755East: -65.2755
South:-63.5958
Geochronology; absolute age; algae; Antarctic Ocean; Antarctic Peninsula; Antarctica; Arthropoda; biostratigraphy; Cenozoic; Cirripedia; cores; correlation; Crustacea; dates; diatoms; glacial environment; glaciomarine environment; Invertebrata; Leg 178; Mandibulata; marine environment; microfossils; Miocene; Neogene; Ocean Drilling Program; ocean floors; ODP Site 1103; Plantae; Sr/Sr; Tertiary; upper Miocene;
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