What do ?14C changes across the Gerzensee oscillation/GI-1b event imply for deglacial oscillations?

Lateglacial vegetation and environment at the mouth of Hardangerfjorden, western Norway

“…It is suggested that the indications of vegetational opening at Vassnestjern and Dåfjordsmyr signal the same climatic event as these Norwegian sites. The decreasing Betula and increasing values of herb pollen from Vassnestjern and Dåfjordsmyr are also similar to the results of high‐resolution analyses on Lateglacial sediments from a lake in western Denmark (Andresen et al 2000). There, the changes are estimated from 13 130 to 12 880 cal.…”

Timing of Lateglacial vegetation dynamics and respective palaeoenvironmental conditions in southern Estonia: evidence from the sediment record of Lake Nakri

“…a BP and connected with the GI‐1b cooling, which has been recognised as the Gerzensee fluctuation in western European records (Lotter et al , 1992). The pollen count percentages from Lake Nakri provide evidence that a similar birch and pine pollen reversal occurred in comparison to that observed in high‐resolution Danish (Andresen et al , 2000), northeast German (de Klerk, 2008) and Norwegian (Karlsen, 2009) Lateglacial sediment records.…”

Constraining the age of Lateglacial and early Holocene pollen zones and tephra horizons in southern Sweden with Bayesian probability methods

“…Lake productivity increased during Allerød I, but declined again shortly in Allerød II. This decline could possibly be associated with the so-called 'Gerzensee Oscillation' (Lotter et al, 1992;Andresen et al, 2000). The distinct peak in TC visible in all three cores during the upper part of HÄ P 3 is characteristic for many lake sediment sequences in south Sweden (Berglund et al, 1994).…”