High-resolution late-glacial chronology for the Gerzensee lake record (Switzerland): δ18O correlation between a Gerzensee-stack and NGRIP

Subdecadal‐scale vegetation responses to a previously unknown late‐Allerød climate fluctuation and Younger Dryas cooling at Lake Meerfelder Maar (Germany)

“…() and van Raden et al . () suggest that changes in climate and especially the subsequent ecosystem responses might not be synchronous on a (sub‐) decadal scale. Furthermore, while the mid‐point of change is often easily defined and as such a robust tool to use in characterizing, for example, biostratigraphical zones, high‐resolution annually laminated records such as MFM indicate that the mid‐point of change is not the best option to define the onset of climate change or the timing of ecosystem response to such changes.…”

“…The continental-scale analysis of European vegetation change during the Holocene by Giesecke et al (2011) shows that with a centennial-scale temporal resolution the expansion of, for example, Corylus avellana was broadly synchronous at far apart sites. However, high-resolution results by Ammann et al (2013) and van Raden et al (2013) suggest that changes in climate and especially the subsequent ecosystem responses might not be synchronous on a (sub-) decadal scale. Furthermore, while the mid-point of change is often easily defined and as such a robust tool to use in characterizing, for example, biostratigraphical zones, highresolution annually laminated records such as MFM indicate that the mid-point of change is not the best option to define the onset of climate change or the timing of ecosystem response to such changes.…”

Synchronizing a Late Glacial Abrupt Cooling Event with Paleoenvironmental and Population Changes: Case Study of the Moervaart Paleolake Area (NW Belgium)

“…These changes include a drastic lowering of the water level in lakes and ponds as well as a transition from an anastomosing to a meandering discharge system. Sum probability as well as Bayesian modeling demonstrate that both these changes were most likely caused by a short but abrupt cooling event, the Intra-Allerød Cold Period IACP or GI-1b as known from the oxygen isotope record of the Greenland ice cores (Blockley et al 2012) and the Gerzensee Lake record in Switzerland (van Raden et al 2013). This climatic event, which was most likely triggered by catastrophic freshwater meltwater discharge from the Glacial Lake Iroquois out the Hudson Valley to the North Atlantic Ocean, is dated between ~13,350 and ~13,100 cal BP (Donnelly et al 2005 (Usinger 1981).…”

Does environmental archaeology need an ethical promise?

“…Magny et al 2006;De Klerk et al 2008;van Raden et al 2013). Despite these seemingly minor environmental impacts, a strong case can be made for specifically human impact, especially beyond the proximal zone (>50 km).…”