Erosion intensity recorded in Lake Gers (North-western Alps) over the last 4600 years


Information on the production of the dataset: The sediment record of Lake Gers consists partly of flood deposits characterised by the succession of three facies: coarse-grained and well-sorted sediment facies, a less sorted sediment facies with finer particles and a clayey cap, from bottom to top. Based on the age-depth model constructed without considering these instantaneous events (see Bajard et al. 2020), a flood frequency with a window of 101 years was calculated. This record is used as a proxy for erosion intensity. Another proxy for erosion is the continuous sedimentation rate (i.e. sedimentation between flood deposits). The sum of this sedimentation rate with the thickness of the flood deposits provides a "total accumulation rate" which reflects the total erosion dynamics in this catchment. The signals have been standardized by calculating z-scores.

Related Identifier
Related Identifier
Related Identifier
Metadata Access
Creator Bajard, Manon ORCID logo
Publisher PANGAEA
Contributor Giguet-Covex, Charline
Publication Year 2023
Rights Creative Commons Attribution 4.0 International;
OpenAccess true
Resource Type Dataset
Format text/tab-separated-values
Size 41894 data points
Discipline Earth System Research
Spatial Coverage (6.730 LON, 46.027 LAT); North-western Alps