Fluvial archives, a valuable record of vertical crustal deformation

作者: A. Demoulin , A. Mather , A. Whittaker

DOI: 10.1016/J.QUASCIREV.2016.11.011

关键词:

摘要: Abstract The study of drainage network response to uplift is important not only for understanding river system dynamics and associated channel properties fluvial landforms, but also identifying the nature crustal deformation its history. In recent decades, geomorphic analysis rivers has proved powerful in elucidating tectonic evolution actively uplifting eroding orogens. Here, we review main developments that have improved expanded qualitative quantitative information about vertical motions (the effects horizontal are addressed). Channel long profiles received considerable attention literature, briefly introduce basic aspects behaviour bedrock from field numerical modelling perspectives, before describing various metrics been proposed identify on contained within their steady-state characteristics. Then, literature dealing with transient perturbation, through production knickpoints propagating network. Inverse time space shown be very effective reconstructing regional histories. Finally, present a synthetic morphometric approach deducing record landscapes. As well as erosional imprint forcing, sedimentary deposits, such terrace staircases, considered classical component geomorphology. We show these studies recently benefited rapid advances dating techniques, allowing more reliable reconstruction incision histories estimation rates. combination progress larger, rigorous data sets ages led erosion implications profile correlation, i.e., extrapolation local entire profiles. planform changes systems at scale alluvial level terms reorganisation. Examples given how can efficiently combine topographic shed new light (dis)equilibrium state across divides.

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