Husson, Dorothee; Galbrun, Bruno; Thibault, Nicolas; Gardin, Silvia; Huret, Emilia; Coccioni, Rodolfo (2012): Astronomical duration of polarity Chron C31r (lower Maastrichtian); cyclostratigraphy of ODP Site 762 (Indian Ocean) and the Contessa highway section (Gubbio, Italy). Cambridge University Press, London, United Kingdom, Geological Magazine, 149 (2), 345-351, georefid:2012-030421

Abstract:
The duration of polarity Chron C31r is estimated with a cyclostratigraphic approach. Two sites are investigated: ODP Site 762 (Indian Ocean) and the Contessa Highway section (Gubbio, Italy). Cyclostratigraphic analysis is performed on greyscale variations (Site 762) and magnetic susceptibility variations (Contessa section). Both sites reveal an astronomical control of the sedimentation, highlighted by the identification of all the orbital periodicities. Cyclostratigraphic signals are tuned on 405 ka eccentricity cycles extracted from the La04 astronomical solution. In both sites, cycle counting gives an estimate of the duration of polarity Chron C31r of about 2.09 + or - 0.03 Ma.
Coverage:
West: 11.5000 East: 112.1515 North: 43.4000 South: -19.5315
West: NaN East: NaN North: NaN South: NaN
Relations:
Expedition: 122
Site: 122-762
Data access:
Provider: SEDIS Publication Catalogue
Data set link: http://sedis.iodp.org/pub-catalogue/index.php?id=10.1017/S0016756811000999 (c.f. for more detailed metadata)
Data download: application/pdf
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