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Title: Obliquity-dominated glacio-eustatic sea level change in the early Oligocene: evidence from the shallow marine siliciclastic Rupelian stratotype (Boom Formation, Belgium)
Authors: Abels, Hemmo A ×
Van Simaeys, Stefaan
Hilgen, Frits J
De Man, Ellen
Vandenberghe, Noël #
Issue Date: Feb-2007
Publisher: Blackwell Scientific Publications
Series Title: Terra Nova vol:19 issue:1 pages:65-73
Abstract: Our results prove that glacio-eustatic sea level oscillations in the early Oligocene were dominantly obliquity controlled with additional influence of the similar to 100- and 405-kyr eccentricity cycles. This was derived from spectral analysis of resistivity records from an extended downhole section of the Boom Clay succession in Belgium, that reveals a prevailing obliquity control on the laterally persistent metre-scale alternations of shallow marine silt- and claystones in the Rupelian historical stratotype succession. These direct measurements of sea level variations in a shallow marine setting corroborate that variations with similar frequencies in benthonic oxygen isotope records from the open ocean indeed reflect, at least partly, ice volume change. A very tentative astronomical tuning has been established for the Boom Clay succession which awaits future confirmation with the addition of more accurate age calibration points.
URI: 
ISSN: 0954-4879
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Division of Geology
× corresponding author
# (joint) last author

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