Early Pleistocene Palaeoclimate Records of Deep-Sea Sediment at IODP Site U1313, North Atlantic

Author

Guo Zhiyong ; Zhai Qiumin ; Qin Saisai

Author_Institution

Sch. of Geographic & Oceanogr. Sci., Nanjing Univ., Nanjing, China

fYear

2012

fDate

1-3 June 2012

Firstpage

1

Lastpage

4

Abstract

In this paper, through measuring oxygen and carbon isotope of planktonic foraminifera Globigerinoides ruber (White) shell in sediment from IODP site U1313 North Atlantic, and building fitting formula of lightness L* and CaCO₃ content using ship measured data, we rebuilt the CaCO₃ content and identified 26 glacial-interglacial cycles. Based on comprehensive analysis of the fluctuations of CaCO₃ content, lightness L*, δ¹⁸O and δ¹³C indicators in the study section 115.48 ~ 69.43mcd (2420.88 ~ 1460.89 ka), the climate changes in North Atlantic are reconstructed and divided into three stages.

Keywords

carbon; fluctuations; geochronology; glaciology; microorganisms; ocean chemistry; oxygen; proxy records (geophysical); sediments; C; CaCO₃ content fluctuations; Globigerinoides ruber; IODP U1313 site; North Atlantic region; O; carbon isotope measurement; climate change; deep-sea sediment; early Pleistocene palaeoclimate records; glacial-interglacial cycles; oxygen isotope measurement; planktonic foraminifera; Carbon; Educational institutions; Geology; Ice; Isotopes; Meteorology; Sediments;

fLanguage

English

Publisher

ieee

Conference_Titel

Remote Sensing, Environment and Transportation Engineering (RSETE), 2012 2nd International Conference on

Conference_Location

Nanjing

Print_ISBN

978-1-4673-0872-4

Type

conf

DOI

10.1109/RSETE.2012.6260547

Filename

6260547