Geochemical methods to infer landscape response to Quaternary climate change and land use in depositional archives: a review

Francke, Alexander ORCID:; Holtvoeth, Jens ORCID:; Codilean, Alexandru ORCID:; Lacey, Jack ORCID:; Bayon, Germain ORCID:; Dosseto, Anthony ORCID: 2020 Geochemical methods to infer landscape response to Quaternary climate change and land use in depositional archives: a review. Earth-Science Reviews, 207, 103218.

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Understanding and quantifying the processes and geochemical cycles associated with catchment erosion, the development of soils and weathering horizons, and terrestrial habitat change beyond the scales of modern observations remain challenging. Such research, however, has become increasingly important to help predict future landscape change in light of increasing land use and rapid global warming. We herein review organic and inorganic geochemical tools applied to depositional archives to better understand various aspects of landscape evolution on geological time scales. We highlight the potentials and limitations of inorganic geochemical analytical methods, such as major element geochemistry, metal and radiogenic isotopes, and in-situ cosmogenic nuclides, as qualitative, semi-quantitative, and quantitative proxies for the transformation of bedrock material via regolith and soils to sediments. We also show how stable isotope geochemistry applied to lacustrine endogenic carbonates can be used to infer rock-water interactions, vegetation change, and soil development in limestone-rich catchments. Proxies focusing on the silicilastic element of sediment formation, transport and deposition are also ideally combined with organic geochemical proxies for vegetation change and soil organic matter evolution in a catchment to gain a comprehensive picture of the Critical Zone’s evolution over time. Multi-proxy and multidisciplinary research combining organic and inorganic geochemical techniques from several sedimentary archives in the same catchment have high potential to provide comprehensive information on Quaternary landscape evolution and thus improve the robustness of associated forecasting models.

Item Type: Publication - Article
Digital Object Identifier (DOI):
ISSN: 0012-8252
Additional Keywords: Quaternary landscape evolution, catchment erosion, terrestrial habitat change, land use, fluvial, lacustrine, inorganic geochemistry, organic geochemistry, radiogenic isotopes, metal isotopes, uranium isotopes, cosmogenic nuclides
NORA Subject Terms: Earth Sciences
Date made live: 09 Jun 2020 15:21 +0 (UTC)

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