Fluvial-aeolian sedimentary facies, Sossusvlei, Namib Desert

Journal article
(Online publication)


Publication Details

Author(s): Feder A, Zimmermann R, Stollhofen H, Caracciolo L, Garzanti E, Andreani L
Journal: Journal of Maps
Publication year: 2018
Volume: 14
Journal issue: 2
Pages range: 630–643
ISSN: 1744-5647
Language: English


Abstract

Aeolian sedimentary processes and corresponding facies shape the Earth’s surface and control
the evolution of dune fields. The Namib Sand Sea with its Sossusvlei playa-lake is a perfect
example to investigate the spatial distribution of fluvially influenced aeolian deposits.
Remote sensing in combination with ground observations allowed for mapping of the facies
distribution pattern of associated fluvial and aeolian sediments. Laboratory spectral signature
measurements were used to further improve the separation between six groups of facies:
modern aeolian sand, deflation surface, mud pool/mud drapes, heavy mineral lag, reworked
fluvial–aeolian sediments, and fossil dune remnant. The best results were achieved through a
supervised classification algorithm trained by field observations, a combination of Principal
Component Analysis, band ratios, texture and geomorphologic indices. Consequently, a map
outlining the facies distribution pattern of the Sossusvlei area at a scale of 1:10,000 was
created. We propose this as a possible workflow to efficiently map and monitor desert
environments and to investigate the interplay of aeolian and fluvial sediments.


FAU Authors / FAU Editors

Caracciolo, Luca Dr.
Lehrstuhl für Geologie (Exogene Dynamik)
Feder, Amelie
Lehrstuhl für Geologie (Exogene Dynamik)
Stollhofen, Harald Prof. Dr.
Lehrstuhl für Geologie (Exogene Dynamik)


External institutions
Helmholtz-Zentrum Dresden-Rossendorf (HZDR)
University of Milano-Bicocca / Università degli Studi di Milano-Bicocca, UNIMIB


How to cite

APA:
Feder, A., Zimmermann, R., Stollhofen, H., Caracciolo, L., Garzanti, E., & Andreani, L. (2018). Fluvial-aeolian sedimentary facies, Sossusvlei, Namib Desert. Journal of Maps, 14(2), 630–643. https://dx.doi.org/10.1080/17445647.2018.1526719

MLA:
Feder, Amelie, et al. "Fluvial-aeolian sedimentary facies, Sossusvlei, Namib Desert." Journal of Maps 14.2 (2018): 630–643.

BibTeX: 

Last updated on 2018-12-11 at 21:38