Une transgression marine holocène au Spitsberg nord-occidental (Svalbard) : une origine eustatique ou glacio-isostatique

Abstract

In the Brøgger Peninsula area, northwest Spitsbergen, the postglacial glacio- isostatitc uplift has induced a rapid land emergence during the Early Holocene and relative sea level fell below its present position. This regression was followed by approximately 15 m of relative sea level rise during the second part of the Holocene. The postglacial relative sea level variations are explained in terms of glacio-isostatic adjustments. The migration of a peripheral forebulge, initially induced by ice-loading on eastern Svalbard, at the end of the Late Weichselian glaciation, is likely the cause of a transgression which followed the postglacial emergence in that area.