RT Journal Article
T1 A multi-proxy approach to Late Holocene fluctuations of Tungnahryggsjökull glaciers in the Tröllaskagi peninsula (northern Iceland)
A1 Fernández Fernández, José María
A1 Palacios Estremera, David
A1 De Andrés de Pablo, Nuria
A1 Schimmelpfennig, Irene
A1 Brynjólfsson, Skafti
A1 García Sancho, Leopoldo
A1 Zamorano, José J.
A1 Heiðmarsson, Starri
A1 Sæmundsson, Þorsteinn
A1 Team, ASTER
AB The Tröllaskagi Peninsula in northern Iceland hosts more than a hundred small glaciers that have left a rich terrestrial record of Holocene climatic fluctuations in their forelands. Traditionally, it has been assumed that most of the Tröllaskagi glaciers reached their Late Holocene maximum extent during the Little Ice Age (LIA). However, there is evidence of slightly more advanced pre-LIA positions. LIA moraines from Iceland have been primary dated mostly through lichenometric dating, but the limitations of this technique do not allow dating of glacial advances prior to the 18th or 19th centuries. The application of 36Cl Cosmic-Ray Exposure (CRE) dating to Tungnahryggsjökull moraine sequences in Vesturdalur and Austurdalur (central Tröllaskagi) has revealed a number of pre-LIA glacial advances at ~400 and ~700 CE, and a number of LIA advances in the 15th and 17th centuries, the earliest LIA advances dated so far in Tröllaskagi. This technique hence shows that the LIA chronology in Tröllaskagi agrees with that of other European areas such as the Alps or the Mediterranean mountains. The combined use of lichenometric dating, aerial photographs, satellite images and fieldwork shows that the regional colonization lag of the commonly used lichen species Rhizocarpon geographicum is longer than previously assumed. For exploratory purposes, an alternative lichen species (Porpidia soredizodes) has been tested for lichenometric dating, estimating a tentative growth rate of 0.737 mm yr−1.
PB Elsevier
SN 0048-9697
YR 2019
FD 2019
LK https://hdl.handle.net/20.500.14352/113370
UL https://hdl.handle.net/20.500.14352/113370
LA eng
NO Fernández-Fernández JM, Palacios D, Andrés N, Schimmelpfennig I, Brynjólfsson S, Sancho LG, et al. A multi-proxy approach to Late Holocene fluctuations of Tungnahryggsjökull glaciers in the Tröllaskagi peninsula (northern Iceland). Science of the Total Environment. 2019;664:499–517.
NO Ministerio de Economía y Competitivdad (España)
NO Nils Mobility Program
NO Ministerio de Educación, Cultura y Deporte
DS Docta Complutense
RD 21 abr 2025