Duration of interglacials: a controversial question

Forsström, Lars

doi:10.1016/s0277-3791(01)00011-7

Cited by 23 publications

(13 citation statements)

References 49 publications

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“…This is an important consideration if the Mn colour cycles are to be used for chronostratigraphic correlations between cores from different regions with different sedimentation rates. If the brown Mn‐enriched cycles in the Arctic Ocean indeed represent interglacials, a duration on the order of 10 Ky is expected for each interglacial (Forsström 2001; Lisiecki & Raymo 2005). Bioturbation and diffusion therefore does not pose any substantial problem for the preservation of the Mn peaks in the studied core, although they may have been reduced in amplitude (Anderson 2001).…”

Section: Discussionmentioning

confidence: 99%

Arctic Ocean manganese contents and sediment colour cycles

et al. 2008

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Cyclical variations in colour and manganese content in sediments from the central Arctic Ocean have been interpreted to represent climatically controlled changes in the input of Mn from the Siberian hinterland, and/or variations in the intermediate and deep water ventilation of the Arctic basins, although a diagenetic origin has not been excluded. A reinvestigation of core 96/12‐1pc using an Itrax X‐ray fluoresence (XRF) core scanner confirms that these colour cycles are indeed controlled by variations in Mn content, although changes in the source region of the sediment may override the Mn colour signal in certain intervals. The prominent Mn cycles show no correspondence to any of the other measured elements. This decoupling of Mn and the bulk chemistry of the sediment is taken to indicate that the cycles observed are caused by variations in water column ventilation and riverine input, rather than variations in sediment source or diagenesis. We therefore conclude that the Mn maxima do represent warm phases with increased ventilation and/or riverine input, and that they therefore could be used for chronostratigraphic correlation between cores from the central Arctic Ocean, where traditional isotope stratigraphy is difficult or impossible to establish because of the lack of calcareous microfossils.

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Section: Discussionmentioning

confidence: 99%

Arctic Ocean manganese contents and sediment colour cycles

et al. 2008

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“…En particular, el MIS5 presenta mayor variabilidad de la que se había sospechado. Tras una notable controversia científica (Shackleton, 1969;Woillard y Mook, 1982;Guiot et al, 1989;Kukla et al, 1997;Chapman y Shackleton, 1999;Forsström, 2001;Tzedakis, 2003;Hodge et al, 2008), parece que ya existe cierto consenso sobre la duración del último interglacial, la cual sería aproximadamente de 16 000 ó 17 000 años, situándose entre 128 000 y 112 000 años BP. Esto implica una corres-pondencia en la mayoría de las secuencias con el segmento isotópico MIS5e-5d (Brauer et al, 2007), si bien hay alguna pequeña desviación local (Sier et al, 2011).…”

Section: Introductionunclassified

Reconstrucción paleoambiental del último ciclo glacial-interglacial en la Iberia continental: la secuencia del Cañizar de Villarquemado (Teruel)

González-Sampériz

García-Prieto

Aranbarri

et al. 2013

CIG

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“…Kukla et al, 1997;Forsstrom, 2001) because the correlation with the well documented marine records are still uncertain. In the scope of dating Late Quaternary sediment studies, magnetostratigraphy retains its position as a powerful stratigraphic tool.…”

Section: Introductionmentioning

confidence: 99%

High-resolution magnetostratigraphy of late quaternary sediments from Lake Baikal, Siberia: timing of intracontinental paleoclimatic responses

Demory

Nowaczyk

Witt

et al. 2005

Global and Planetary Change

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Sediment cores retrieved from 6 locations in Lake Baikal were subjected to a paleomagnetic study in order to establish detailed age models based on correlations of relative paleointensity records. Additional data were provided by calibrated accelerator mass spectrometry (AMS) 14 C dating, as well as by documentation of geomagnetic excursions like Laschamp at ~ 42 ka and Iceland Basin at ~ 185 ka. Few intervals were affected by diagenetic features like selective reductive dissolution of magnetite and greigite mineralization (Demory et al., this issue), and those that were, were left out of paleointensity records. These records were tuned to the well-dated paleomagnetic record from ODP Site 984 (Channell, 1999). The complex shape of the resulting depth/age curves highlights the need for a high resolution age model.

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Duration of interglacials: a controversial question

Cited by 23 publications

References 49 publications

Arctic Ocean manganese contents and sediment colour cycles

Arctic Ocean manganese contents and sediment colour cycles

Reconstrucción paleoambiental del último ciclo glacial-interglacial en la Iberia continental: la secuencia del Cañizar de Villarquemado (Teruel)

High-resolution magnetostratigraphy of late quaternary sediments from Lake Baikal, Siberia: timing of intracontinental paleoclimatic responses

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