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| Titel |
Interactions between the dynamics of the solid Earth and its surficial envelopes |
| VerfasserIn |
Jean Braun, Eric Deal |
| Konferenz |
EGU General Assembly 2016
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| Medientyp |
Artikel
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| Sprache |
en
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 18 (2016) |
| Datensatznummer |
250128777
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| Publikation (Nr.) |
 EGU/EGU2016-8803.pdf |
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| Zusammenfassung |
| Tectonics and mantle convection are the primary drivers of surface uplift and subsidence
which give rise to surface topography and slope. Surface processes, such as erosion and
sedimentation, are responsible for the transfer of material from regions of elevated
topography to low lying coastal plains and continental interiors, and, ultimately, the oceans.
Surface processes are mainly controlled by the availability of water at the Earth’s surface and
their efficiency should therefore be a strong function of precipitation, and how it is partitioned
between surface flow and infiltration in the subsurface. It is also well documented that,
through orography, surface topography exerts an important control on the patterns of
precipitation at the Earth’s surface indicating that important feedbacks and interactions may
control the complex evolution of surface topography and climate. In this presentation we will
combined observational constraints with the results of quantitative models driven
by stochastic processes to provide some responses to the following fundamental
questions concerning the interactions between the solid earth and the hydrosphere:
how sensitive are erosional processes to variability in precipitation patterns?
what is the erosional response to long-term variations in precipitation rate and
how is it recorded in the geological record?
how do deep Earth processes affect climate through the formation of surface
topography and its chemical and physical alteration? |
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