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  • 1990-1994  (5)
  • 1
    Electronic Resource
    Electronic Resource
    Deep-water renewal by turbidity currents in the Sulu Sea (1990)
    [s.l.] : Nature Publishing Group
    Nature 348 (1990), S. 320-322 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The Sulu Sea in the eastern Indonesian archipelago is a small, 5,000-m-deep basin surrounded by shallow shelves and islands. Its deep water below a depth of 2,000m is remarkably homogeneous in temperature and salinity. Geochemical tracer data indicate renewal times of the deep water of ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/348320a0
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    Paper (German National Licenses)
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  • 2
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    High Frequency Turbidite Sedimentation in the Sulu Sea (Philippine Archipelago) (1991)
    Schweizerbart
    Details
    Publication Date: 1991-07-01
    Print ISSN: 0012-0189
    Topics: Geosciences
    Published by Schweizerbart
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    PAPER CURRENT
  • 3
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    Hemipelagic Sediment Accumulation Rates in the South China Sea Related to Late Quaternary Sea-Level Changes (1993)
    Cambridge University Press
    Details
    Publication Date: 1993-11-01
    Description: Sediments of 13 piston cores from opposite continental slopes of the South China Sea, off southern China and Sabah (northern Borneo), were analyzed by sedimentological methods and dated by oxygen isotope stratigraphy. Sediments mostly consist of hemipelagic clay with 20% carbonate off Sabah and 40% off China. We calculated terrigenous and carbonate accumulation rates for up to 11 time-slices from the Holocene to oxygen-isotope stage 6. Terrigenous accumulation rates generally increase with water depth and reach a maximum at the middle slope off Sabah and at the lower continental slope off China. During glacial and interglacial times this distribution pattern did not markedly change, despite an increase of accumulation rates for glacial periods by a factor of 2 to 5 compared to interglacial periods. Rates are negatively correlated with positions of sea level, which controls the partition of fluviatile terrigenous material for deposition on shelf, slope, and abyssal plain. Carbonate accumulation rates are higher off China by a factor of 2 compared to Sabah, probably indicating higher calcareous plankton productivity.
    Print ISSN: 0033-5894
    Electronic ISSN: 1096-0287
    Topics: Geography , Geosciences
    Published by Cambridge University Press
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  • 4
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    Deep-water renewal by turbidity currents in the Sulu Sea (1990)
    Springer Nature
    Details
    Publication Date: 1990-11-01
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Published by Springer Nature
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  • 5
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    Hochfrequente Turbiditsedimentation in der Sulu-See (Philippinen) (1991)
    Schweizerbart
    In:  Zeitschrift der Deutschen Geologischen Gesellschaft, 142 . pp. 179-197.
    Details
    Publication Date: 2016-03-23
    Description: Während des Spätpleistozäns und Holozäns werden auf der langgestreckten Sulu-See Tiefsee-Ebene Turbidite mit einer Häufigkeit von 3 bis 94 Ereignissen pro 1000 Jahre im Wechsel mit hemipelagischem Sediment abgelagert. Eine Tephralage und isotopenstratigraphische Untersuchungen ermöglichten es, 10 untersuchte Kolbenlotkerne zu korrelieren und in fünf bis ins letzte Hochglazial reichende Zeitscheiben zu gliedern. Entsprechend dem Gefüge der Basislagen der terrigenen Turbidite können im nördlichen Teil der Tiefsee-Ebene proximale und im Süden distale Ablagerungsbereiche unterschieden weren. Die Turbidithäufigkeiten bleiben bis ins Spätpleistozän konstant, nehmen jedoch regional von 94 Turbiditen/1000 Jahre im Norden auf 11 Turbidite/1000 Jahre im Südteil der Tiefsee-Ebene ab. Dieser Gradient und die Gefügemerkmale zeigen, daß die meisten Turbiditströme die Tiefsee-Ebene durch den sich nördlich anschließenden Panay-Canyon erreichen. Von allen berücksichtigten Faktoren ist der taifuninduzierte Einstrom dichterer Wassermassen aus dem Südchinesischen Meer durch die Mindoro-Straße und den Panay-Canyon der wahrscheinlichste Auslöser für hochfrequente terrigene Turbiditströme. A narrow deep-sea abyssal plain is situated in the deepest part of the south-eastern Sulu Sea subbasin. The trench sediments which were recovered with piston cores during RV Sonne cruises SO 49 and SO 58 comprise numerous Late Pleistocene to Holocene turbidites with intercalated hemipelagic mud layers. While a proximal turbidite facies is recognized only in the northern trench, distal terrigenous turbidites are frequent in the whole basin. The occurrence of calcareous turbidites is restricted, however, to the southern trench. Although terrigenous turbidite frequencies remain rather constant over the past 22,000 years, they show a decrease from 94 in the northern trench to 11 turbidites/ka in the southern part of the basin. This gradient points to the Panay Canyon north of the trench as the main source for terrigenous turbidites. Features of erosion and gravity-driven downslope-transport are observed on the Panay Canyon floor. From all factors considered, typhoon-induced water inflow from the South China Sea through the Mindoro Strait seems to be the most important trigger mechanism for the frequent release of terrigenous turbiditic flows passing through the Panay Canyon to the Sulu Sea abyssal plain.
    Type: Article , PeerReviewed
    Format: text
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