Astronomical duration of polarity Chron C31r (lower Maastrichtian): cyclostratigraphy of the ODP Hole 762C (Indian Ocean) and the Contessa section (Italy)

Dorothee Husson; Bruno Galbrun; Nicolas Rudolph Thibault; Silvia Gardin; Emilia Huret; Rodolfo Coccioni

doi:10.1017/s0016756811000999

Astronomical duration of polarity Chron C31r (lower Maastrichtian): cyclostratigraphy of the ODP Hole 762C (Indian Ocean) and the Contessa section (Italy)

Dorothee Husson, Bruno Galbrun, Nicolas Rudolph Thibault, Silvia Gardin, Emilia Huret, Rodolfo Coccioni

Geologi

10 Citationer (Scopus)

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 ± 0.03 Ma.

Originalsprog	Engelsk
Tidsskrift	Geological Magazine
Vol/bind	149
Udgave nummer	2
Sider (fra-til)	345-351
Antal sider	7
ISSN	0016-7568
DOI	https://doi.org/10.1017/s0016756811000999
Status	Udgivet - mar. 2012

Adgang til dokumentet

10.1017/s0016756811000999

Astronomical duration of polarity Chron C31r (Lower Maastrichtian): cyclostratigraphy of ODP Site 762 (Indian Ocean) and the Contessa Highway section (Gubbio, Italy)Forlagets udgivne version, 910 KB

Citationsformater

Astronomical duration of polarity Chron C31r (lower Maastrichtian) : cyclostratigraphy of the ODP Hole 762C (Indian Ocean) and the Contessa section (Italy). / Husson, Dorothee; Galbrun, Bruno; Thibault, Nicolas Rudolph et al.

I: Geological Magazine, Bind 149, Nr. 2, 03.2012, s. 345-351.

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › peer review

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AU - Husson, Dorothee

AU - Galbrun, Bruno

AU - Thibault, Nicolas Rudolph

AU - Gardin, Silvia

AU - Huret, Emilia

AU - Coccioni, Rodolfo

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AB - 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 ± 0.03 Ma.

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