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Budziak, Dörte; Schneider, Ralph R; Rostek, Frauke; Müller, Peter J; Bard, Edouard; Wefer, Gerold (2000): Alkenone variations, total organic carbon and stable oxygen isotope ratios of the western Arabian Sea. PANGAEA,, Supplement to: Budziak, D et al. (2000): Late Quaternary insolation forcing on total organic carbon and C37 alkenone variations in the Arabian Sea. Paleoceanography, 15(3), 307-321,

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We here present records of total organic carbon (TOC) and C37 alkenones, used as indicators for past primary productivity, from the western (WAS) and eastern Arabian Sea (EAS). New data from an open ocean site of the WAS upwelling area are compared with similar records from Ocean Drilling Program (ODP) Site 723 from the continental margin off Oman and MD 900963 from the EAS. These records together with other proxies used to reconstruct upwelling intensity, indicate periods of high productivity in tune with precessional forcing. On the basis of their phase relationship to boreal summer insolation they can be divided into three groups: in the WAS differences between monsoonal proxies (1) and productivity (2) document a combined signal of moderate SW monsoon winds and of strengthened and prolonged NE monsoon winds, whereas in the EAS phasing indicates maximum productivity (3) at times of stronger NE monsoon winds associated with precession-related maxima in ice volume.
Related to:
Budziak, Dörte (2001): Late Quaternary monsoonal climate and related variations in paleoproductivity and alkenone-derived sea-surface temperatures in the western Arabian Sea. Berichte aus dem Fachbereich Geowissenschaften der Universität Bremen, 170, 114 pp, urn:nbn:de:gbv:46-ep000102949
Median Latitude: 13.552319 * Median Longitude: 57.107086 * South-bound Latitude: 5.040000 * West-bound Longitude: 54.369800 * North-bound Latitude: 14.971667 * East-bound Longitude: 73.530000
Date/Time Start: 1990-09-12T00:00:00 * Date/Time End: 1995-03-08T21:31:00
GeoB3005-1 (M31/3-108_GC) * Latitude: 14.971667 * Longitude: 54.370000 * Date/Time: 1995-03-08T11:08:00 * Elevation: -2316.0 m * Recovery: 11.48 m * Location: Western Arabian See * Campaign: M31/3 (BIGSET) * Basis: Meteor (1986) * Method/Device: Gravity corer (Kiel type) (SL) * Comment: Penetration until weight, 0 - 5 cm missing, CC: carbonate-ooze, olive-green, foraminifers
GeoB3005-3 (M31/3-108_MC1/3, M31/3_MC372) * Latitude: 14.969783 * Longitude: 54.369800 * Date/Time: 1995-03-08T21:31:00 * Elevation: -2314.0 m * Recovery: 0.3 m * Location: Western Arabian See * Campaign: M31/3 (BIGSET) * Basis: Meteor (1986) * Method/Device: MultiCorer (MUC) * Comment: 2 big, 2 small tubes, carbonate-ooze, olive-green, foraminifers
M31/3_KL35 (GeoB3005-2) * Latitude: 14.971667 * Longitude: 54.370000 * Date/Time: 1995-03-08T00:00:00 * Elevation: -2330.0 m * Recovery: 19.5 m * Location: Western Arabian See * Campaign: M31/3 (BIGSET) * Basis: Meteor (1986) * Method/Device: Piston corer (Kiel type) (KOL) * Comment: CC: carbonate-ooze, olive-green, foraminifers
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