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  • 1
    Online Resource
    Online Resource
    The Age of the Holstein Interglaciation: A Reply
    Cambridge University Press (CUP) ; 1988
    In:  Quaternary Research Vol. 29, No. 1 ( 1988-01), p. 80-84
    Details
    In: Quaternary Research, Cambridge University Press (CUP), Vol. 29, No. 1 ( 1988-01), p. 80-84
    Type of Medium: Online Resource
    ISSN: 0033-5894 , 1096-0287
    URL: Article
    DOI: 10.1016/0033-5894(88)90075-0
    RVK:
    RA 1000
    Language: English
    Publisher: Cambridge University Press (CUP)
    Publication Date: 1988
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    detail.hit.zdb_id: 205711-6
    SSG: 13
    SSG: 14
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  • 2
    Online Resource
    Online Resource
    Global variations of surface ocean productivity in low and mid latitudes: Influence on CO 2 reservoirs of the deep ocean and atmosphere during the last 21,000 years
    American Geophysical Union (AGU) ; 1988
    In:  Paleoceanography Vol. 3, No. 3 ( 1988-06), p. 361-399
    Details
    In: Paleoceanography, American Geophysical Union (AGU), Vol. 3, No. 3 ( 1988-06), p. 361-399
    Abstract: Based on detailed reconstructions of global distribution patterns, both paleoproductivity and the benthic δ 13 C record of CO 2 , which is dissolved in the deep ocean, strongly differed between the Last Glacial Maximum and the Holocene. With the onset of Termination I about 15,000 years ago, the new (export) production of low‐ and mid‐latitude upwelling cells started to decline by more than 2‐4 Gt carbon/year. This reduction is regarded as a main factor leading to both the simultaneous rise in atmospheric CO 2 as recorded in ice cores and, with a slight delay of more than 1000 years, to a large‐scale gradual CO 2 depletion of the deep ocean by about 650 Gt C. This estimate is based on an average increase in benthic δ 13 C by 0.4–0.5‰. The decrease in new production also matches a clear 13 C depletion of organic matter, possibly recording an end of extreme nutrient utilization in upwelling cells. As shown by Sarnthein et al., [1987], the productivity reversal appears to be triggered by a rapid reduction in the strength of meridional trades, which in turn was linked via a shrinking extent of sea ice to a massive increase in high‐latitude insolation, i.e., to orbital forcing as primary cause.
    Type of Medium: Online Resource
    ISSN: 0883-8305 , 1944-9186
    URL: Article
    DOI: 10.1029/PA003i003p00361
    Language: English
    Publisher: American Geophysical Union (AGU)
    Publication Date: 1988
    detail.hit.zdb_id: 637876-6
    detail.hit.zdb_id: 2015231-0
    detail.hit.zdb_id: 2916554-4
    SSG: 16,13
    SSG: 13
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  • 3
    Online Resource
    Online Resource
    Benthic isotope evidence for changes of the Mediterranean outflow during the Late Quaternary
    American Geophysical Union (AGU) ; 1987
    In:  Paleoceanography Vol. 2, No. 6 ( 1987-12), p. 543-559
    Details
    In: Paleoceanography, American Geophysical Union (AGU), Vol. 2, No. 6 ( 1987-12), p. 543-559
    Abstract: A suit of sediment cores close to and south of the Strait of Gibraltar (12°‐36°N, 500–2800 m water depth) were analyzed for stable isotopes in epibenthic foraminifers Cibicidoides wuellerstorfi and Planulina ariminensis . During peak glacial times, the data exhibit higher δ 13 C values of up to 1.6‰ at intermediate depths near the Strait of Gibraltar (36°N). The values decrease to the south as evidenced by our data, but also to the north as revealed by data of intermediate depth cores north of 38°N (in Duplessy et al. [1987]). Thus, the distribution pattern of δ 13 C provides crucial evidence for an increased influence of nutrient depleted Mediterranean Outflow Water (MOW) on the glacial northeast Atlantic hydrography. During oxygen isotope Terminations I and II, the meridional carbon isotope gradient indicates a significantly decreased but still active MOW. As deduced from the δ 18 O fluctuations, the temperatures of the MOW in the Atlantic were lower during glacial times by as much as 5°C. During glacial times and during Termination I the maximum δ 13 C values of the MOW correlate with minimum values of the North Atlantic Deep Water (NADW) and vice versa. This inverse response to climatic change of the carbon isotope signals of both water masses indicates, that the supply of saline MOW to the north Atlantic may be less important for the formation of NADW than previously assumed.
    Type of Medium: Online Resource
    ISSN: 0883-8305 , 1944-9186
    URL: Article
    DOI: 10.1029/PA002i006p00543
    Language: English
    Publisher: American Geophysical Union (AGU)
    Publication Date: 1987
    detail.hit.zdb_id: 637876-6
    detail.hit.zdb_id: 2015231-0
    detail.hit.zdb_id: 2916554-4
    SSG: 16,13
    SSG: 13
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  • 4
    Online Resource
    Online Resource
    Benthic foraminiferal δ13C and accumulation rates of organic carbon: Uvigerina Peregrina group and Cibicidoides Wuellerstorfi
    American Geophysical Union (AGU) ; 1986
    In:  Paleoceanography Vol. 1, No. 1 ( 1986-03), p. 27-42
    Details
    In: Paleoceanography, American Geophysical Union (AGU), Vol. 1, No. 1 ( 1986-03), p. 27-42
    Abstract: The glacial to interglacial δ13C records of the benthic foraminifera Cibicidoides wuellerstorfi and the Uvigerina peregrina group from deep‐sea cores cannot be adjusted by a generally valid constant. The δ13C values of the U. peregrina group largely correlate with the accumulation rates of organic carbon, suggesting a local "habitat effect"; those of C. wuellerstorfi vary independently with respect to the carbon flux and record fluctuations in the δ13C of the ambient bottom water isotopic composition.
    Type of Medium: Online Resource
    ISSN: 0883-8305 , 1944-9186
    URL: Article
    DOI: 10.1029/PA001i001p00027
    Language: English
    Publisher: American Geophysical Union (AGU)
    Publication Date: 1986
    detail.hit.zdb_id: 637876-6
    detail.hit.zdb_id: 2015231-0
    detail.hit.zdb_id: 2916554-4
    SSG: 16,13
    SSG: 13
    Location Call Number Limitation Availability
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  • 5
    Online Resource
    Online Resource
    The Holstein Interglaciation: Time-Stratigraphic Position and Correlation to Stable-Isotope Stratigraphy of Deep-Sea Sediments
    Cambridge University Press (CUP) ; 1986
    In:  Quaternary Research Vol. 26, No. 3 ( 1986-11), p. 283-298
    Details
    In: Quaternary Research, Cambridge University Press (CUP), Vol. 26, No. 3 ( 1986-11), p. 283-298
    Abstract: Marine molluscan shells from para-type and other localities of the Holsteinian interglaciation were dated by Th/U and the electron spin resonance (ESR) method to more than 350,000 and 370,000 yr B.P., beyond the limit of Th/U dating. The high age estimate is corroborated by a K/Ar age of 420,000 yr B.P. determined from volcanic ash near the base of the Ariendorf paleosol in the Middle Rhine valley believed to be a pedostratigraphic equivalent of the Holsteinian. Shells from the Herzeele marine unit III, an equivalent of the Wacken (Dömnitz) warm stage in northern France and subsequent to the Holsteinian, revealed ages between 300,000 and 350,000 yr B.P. A correlation of these two warm stages with marine oxygen-isotope stages 11 and 9 on the SPECMAP and CARTUNE time scales is suggested. From the benthic oxygen-isotope record one may infer that no exceptionally high global sea-level rise corresponds to the large transgressions of the Holstein Sea in northern Germany. Therefore, a significant proportion of the transgression was probably the result of an unusually large local glacial-isostatic depression caused by the extreme buildup of ice during the preceding Elster glaciation (stage 12). According to the deep-sea record, it lasted approximately 50% longer than the subsequent cold stage 10. The outstanding soil formation with Braunlehm and the well-developed thermal optimum of the Holsteinian are tentatively related to a phase of minimum sea-ice cover in the Norwegian-Greenland Sea, as deduced from long benthic carbon-isotope records from the central Atlantic.
    Type of Medium: Online Resource
    ISSN: 0033-5894 , 1096-0287
    URL: Article
    DOI: 10.1016/0033-5894(86)90090-6
    RVK:
    RA 1000
    Language: English
    Publisher: Cambridge University Press (CUP)
    Publication Date: 1986
    detail.hit.zdb_id: 1471589-2
    detail.hit.zdb_id: 205711-6
    SSG: 13
    SSG: 14
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  • 6
    Online Resource
    Online Resource
    Sonostratigraphic records from equatorial Atlantic deep-sea carbonates: Paleoceanographic and climatic relationships
    Elsevier BV ; 1988
    In:  Marine Geology Vol. 83, No. 1-4 ( 1988-9), p. 9-20
    Details
    In: Marine Geology, Elsevier BV, Vol. 83, No. 1-4 ( 1988-9), p. 9-20
    Type of Medium: Online Resource
    ISSN: 0025-3227
    URL: Article
    DOI: 10.1016/0025-3227(88)90048-5
    Language: English
    Publisher: Elsevier BV
    Publication Date: 1988
    detail.hit.zdb_id: 1500648-7
    detail.hit.zdb_id: 2181-7
    SSG: 13
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