Jakob Wallinga | Wageningen University (original) (raw)
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Papers by Jakob Wallinga
Journal of Archaeological Science, 2015
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EGU General Assembly 2009, held 19-24 April, 2009 in Vienna, Austria http://meetings. copernicus. org/egu2009, p. 12567, Apr 1, 2009
Abrupt climatic changes during Oxygen Isotope Stage 3 (OIS-3 or Weichselian Middle Pleniglacial) ... more Abrupt climatic changes during Oxygen Isotope Stage 3 (OIS-3 or Weichselian Middle Pleniglacial) are revealed in the oxygen isotope records of the Greenland ice cores and in the North Atlantic marine cores. In the Greenland ice cores, these so-called D/O cycles start with a rapid warming of 5-10˚ C within a few decades, followed by a phase of gradual cooling over several hundred to more than a thousand years and often end with a final reduction in temperature back to cold, stadial conditions. On the adjacent European ...
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Westaway and Bridgland (2010) present a palaeoflow estimation for the Channel River, partly based... more Westaway and Bridgland (2010) present a palaeoflow estimation for the Channel River, partly based on calculations using input from the Busschers et al.(2007) Rhine–Meuse dataset. There are flaws in these calculations. Westaway and Bridgland calculate high-magnitude 'bankfull'palaeoflows (Qbf) for presumed critical periods within Marine Isotope Stage (MIS) 2 and MIS 6.
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Geomorphology, 2008
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Geochronometria
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ABSTRACT
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ABSTRACT
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ABSTRACT
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ABSTRACT
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Optically stimulated luminescence (OSL or optical) dating can be used to determine the time of de... more Optically stimulated luminescence (OSL or optical) dating can be used to determine the time of deposition of sediments. Application of the method for young fluvial deposits is difficult due to incomplete zeroing of the luminescence clock, resulting in overestimation of the burial age. Here we present new optical dating methods and ages obtained on two sites in embanked floodplains of the River Waal. Results are in correct stratigraphical order and agree favourably with available age constraints
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Journal of Archaeological Science, 2015
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EGU General Assembly 2009, held 19-24 April, 2009 in Vienna, Austria http://meetings. copernicus. org/egu2009, p. 12567, Apr 1, 2009
Abrupt climatic changes during Oxygen Isotope Stage 3 (OIS-3 or Weichselian Middle Pleniglacial) ... more Abrupt climatic changes during Oxygen Isotope Stage 3 (OIS-3 or Weichselian Middle Pleniglacial) are revealed in the oxygen isotope records of the Greenland ice cores and in the North Atlantic marine cores. In the Greenland ice cores, these so-called D/O cycles start with a rapid warming of 5-10˚ C within a few decades, followed by a phase of gradual cooling over several hundred to more than a thousand years and often end with a final reduction in temperature back to cold, stadial conditions. On the adjacent European ...
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Westaway and Bridgland (2010) present a palaeoflow estimation for the Channel River, partly based... more Westaway and Bridgland (2010) present a palaeoflow estimation for the Channel River, partly based on calculations using input from the Busschers et al.(2007) Rhine–Meuse dataset. There are flaws in these calculations. Westaway and Bridgland calculate high-magnitude 'bankfull'palaeoflows (Qbf) for presumed critical periods within Marine Isotope Stage (MIS) 2 and MIS 6.
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Geomorphology, 2008
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Geochronometria
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ABSTRACT
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ABSTRACT
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ABSTRACT
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ABSTRACT
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Optically stimulated luminescence (OSL or optical) dating can be used to determine the time of de... more Optically stimulated luminescence (OSL or optical) dating can be used to determine the time of deposition of sediments. Application of the method for young fluvial deposits is difficult due to incomplete zeroing of the luminescence clock, resulting in overestimation of the burial age. Here we present new optical dating methods and ages obtained on two sites in embanked floodplains of the River Waal. Results are in correct stratigraphical order and agree favourably with available age constraints
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Multidisciplinary analysis including paleomagnetic, sedimentologic, sea-level change, luminescenc... more Multidisciplinary analysis including paleomagnetic, sedimentologic, sea-level change, luminescence dating and palynologic research was performed on a 25 m long orientated core taken at Rutten, close to Eemian key localities in the Netherlands. The main goal of our research was to test a possible delayed onset of temperate conditions in this region compared to Southern Europe, occurring within the Last Interglacial. The sediments revealed the presence of the paleomagnetic Blake Event in ca. 10 meters of lower-deltaic floodbasin sediments that contain a pollen record covering the Eemian. The position of the Blake Event in relation to the pollen stratigraphy concurs with the earlier studied Neumark Nord 2 site. Paleomagnetic correlation to core MD95-2042 off SW Iberia indicates ca. 5 kyr diachroneity between the pollen-based onset of temperate interglacial conditions between northern and southern Europe. The onset of the Eemian in north-western and central Europe (ca. 121.0 ka) post-dates the Marine Isotope Stage 6/5e transition by ca. 10 kyr. In addition, the Rutten data provide evidence for a relatively long duration of the Blake Event of at least 8 kyr. The late onset of the temperate conditions that define the base of the Eemian, imply that NW Europe with the Eemian type area is not the most suited region to define the beginning of the Last Interglacial and Late Pleistocene for global chronostratigraphic use.
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