Figure 4 - uploaded by Leif Kullman
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A."Peat ball", outwashed from beneath the glacier cover and with a multitude of plant macro remains (vascular plants and bryophytes), representative of present-day northern boreal ground cover flora. A bulk sample of the peat and its content returned an age 5175 cal. yr, indicative of a glacier smaller-than-present at that time and a species-rich forest floor. Ice patch near Tärnaglaciären, 1115 m a.s.l. Photo: 2012-09-22. B. Peat cake dated 3890 cal. yr BP, without tree remains and reasonably shortly predating glacier inception. Tärnaglaciären, 1075 m a.s.l. Photo: 2010-08-20. Source: Kullman & Öberg 2013, 2015.
Source publication
Adds detail to early Holocene tree exclaves in ice-empty glacier niches
Context in source publication
Context 1
... of plant macrofossils contained in outwashed "peat balls" from beneath the ice blanket at the concerned "beaver sites" (Fig. 4) have revealed that a forest floor of present-day mountain taiga affinities prevailed in association with the early Holocene trees. Hereabouts glacier ice and perennial snow/ice patches came into existence during the Neoglacial, shortly after about 4000 cal. yr BP and thereby sealed this plant cover repository for millennia to come ...
