Uplift, shortening, and steady state topography in active mountain belts

摘要

We present a tectonic, surface process model used to investigate the role of horizontal shortening in convergent orogens and the effects on steady-state topography. The tectonic model consists of a specified velocity field for the Earth's surface and includes a constant uplift rate and a constant horizontal stain rate which varies to reflect the relative importance of frontal accretion and under plating in an orogenic wedge. The surface process model includes incision of a network of rivers formed by collection of applied precipitation and diffusive hillslope mass transfer