Reply to ‘Challenging the hypothesis of an arctic ocean lake during recent glacial episodes’ by Hillaire‐Marcel, et al


Contact
walter.geibert [ at ] awi.de

Abstract

Hillaire‐Marcelet al. bring forward several physical and geochemical arguments against our finding of an Arctic glaciolacustrine system in the past. In brief, we find that a physical approach to further test our hypothesis should additionally consider the actual bathymetry of the Greenland–Scotland Ridge (GSR), the density maximum of freshwater at 3–4°C, the sensible heat flux from rivers, and the actual volumes that are being mixed and advected. Their geochemical considerations acknowledge our original argument, but they also add a number of assumptions that are neither required to explain the observations, nor do they correspond to the lithology of the sediments. Rather than being additive in nature, their arguments of high particle flux, low particle flux, export of 230Th and accumulation of 230Th, are mutually exclusive. We first address the arguments above, before commenting on some misunderstandings of our original claim in their contribution, especially regarding our dating approach.



Item Type
Article
Authors
Divisions
Primary Division
Programs
Primary Topic
Peer revision
Peer-reviewed, Web of Science / Scopus
Publication Status
Published
Eprint ID
55980
DOI 10.1002/jqs.3431

Cite as
Geibert, W. , Matthießen, J. , Wollenburg, J. and Stein, R. (2022): Reply to ‘Challenging the hypothesis of an arctic ocean lake during recent glacial episodes’ by Hillaire‐Marcel, et al , Journal of Quaternary Science, 1-4 . doi: 10.1002/jqs.3431


Download
[thumbnail of J_Quaternary_Science_2022_GEIBERT_Reply_to_Challenging_the_hypothesis_of_an_arctic_ocean_lake_during_recent_glacial.pdf]
Preview
PDF
J_Quaternary_Science_2022_GEIBERT_Reply_to_Challenging_the_hypothesis_of_an_arctic_ocean_lake_during_recent_glacial.pdf

Download (335kB) | Preview

Share


Citation

Research Platforms

Campaigns
ARK > XIV > 1a
ARK > XXIII > 3


Actions
Edit Item Edit Item