Consulta: creatorFacets:"Heaton, Timothy J."
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Radiocarbon Calibration/Comparison Records Based on Marine Sediments from the Pakistan and Iberian Margins
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Bard, Edouard; Menot, Guillemette; Rostek, Frauke; Licari, Laetitia; Boening, Philipp; Edwards, R. Lawrence; Cheng, Hai; Wang, Yongjin; Heaton, Timothy J.
We present a new record of radiocarbon ages measured by accelerator mass spectrometry (AMS) on a deep-sea core collected off the Pakistan Margin. The C-14 ages measured on the planktonic foraminifera Globigerinoides ruber from core MD04-2876 define a high and stable sedimentation rate on the order of 50 cm/kyr over the last 50 kyr. The site is distant from the main upwelling zone of the western Arabian Sea where C-14 reservoir age is large and may be variable. Many independent proxies based on elemental analyses, mineralogy, biomarkers, isotopic proxies, and foraminiferal abundances show abrupt changes correlative with Dansgaard-Oeschger and Heinrich events. It is now common knowledge that these climatic events also affected the Arabian Sea during the last...
Tipo: Text
Palavras-chave: Berian Margin; Pakistan Margin; 14C; Calibration.
Ano: 2013
URL: https://archimer.ifremer.fr/doc/00264/37569/35852.pdf