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Desert landscape processes on a timescale of millions of years, probed by cosmogenic nuclides

Fujioka, Toshiyuki; Chappell, John

Description

Since their inception, cosmogenic nuclide methods have enhanced our understanding of Earth's surface processes by providing a basis for directly determining surface exposure times and erosion rates of landscape elements. The ability to measure exposure ages up to several million years and erosion rates as low as a decimetre per million years means that the method is particularly useful for environments where landscapes change very slowly, such as deserts in tectonically stable regions. In this...[Show more]

dc.contributor.authorFujioka, Toshiyuki
dc.contributor.authorChappell, John
dc.date.accessioned2015-12-10T23:35:04Z
dc.identifier.issn1875-9637
dc.identifier.urihttp://hdl.handle.net/1885/69696
dc.description.abstractSince their inception, cosmogenic nuclide methods have enhanced our understanding of Earth's surface processes by providing a basis for directly determining surface exposure times and erosion rates of landscape elements. The ability to measure exposure ages up to several million years and erosion rates as low as a decimetre per million years means that the method is particularly useful for environments where landscapes change very slowly, such as deserts in tectonically stable regions. In this paper, we review cosmogenic nuclide studies of various aspects of desert landscapes, including regional to continental-scale landscape evolution in arid-semiarid Australia and the hyper-arid Namib, Atacama and Negev Deserts, together with mechanisms and timescales of formation of desert pavements and dune fields that have been difficult to be evaluated by other methods. The timescales revealed by these studies range beyond the Quaternary into the Miocene, and provide links between desert landscapes and late Cenozoic climate changes.
dc.publisherElsevier
dc.sourceAeolian Research
dc.subjectKeywords: arid region; aridity; Cenozoic; climate variation; cosmogenic radionuclide; desert; dune field; erosion rate; geochronology; landscape evolution; Miocene; Quaternary; semiarid region; timescale; Atacama Desert; Australia; Chile; Israel; Namib Desert; Nami Aridity; Cosmogenic nuclide; Desert pavement; Dune field; Landscape evolution; Late Cenozoic climate change
dc.titleDesert landscape processes on a timescale of millions of years, probed by cosmogenic nuclides
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume3
dc.date.issued2011
local.identifier.absfor040601 - Geomorphology and Regolith and Landscape Evolution
local.identifier.absfor060306 - Evolutionary Impacts of Climate Change
local.identifier.ariespublicationf2965xPUB2096
local.type.statusPublished Version
local.contributor.affiliationFujioka, Toshiyuki, Australian Nuclear Science and Technology Organisation
local.contributor.affiliationChappell, John, College of Physical and Mathematical Sciences, ANU
local.description.embargo2037-12-31
local.bibliographicCitation.issue2
local.bibliographicCitation.startpage157
local.bibliographicCitation.lastpage164
local.identifier.doi10.1016/j.aeolia.2011.03.003
local.identifier.absseo970104 - Expanding Knowledge in the Earth Sciences
local.identifier.absseo960304 - Climate Variability (excl. Social Impacts)
local.identifier.absseo960399 - Climate and Climate Change not elsewhere classified
dc.date.updated2016-02-24T08:22:05Z
local.identifier.scopusID2-s2.0-79961127931
local.identifier.thomsonID000297526700004
CollectionsANU Research Publications

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