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* Department of Geological and Environmental Sciences, Stanford University, Stanford, California 94305-2115, USA
** Department of Earth Sciences, Dartmouth College, Hanover, New Hampshire 03755, USA
*** U.S. Geological Survey, Menlo Park, California 94025, USA
corresponding author: e-mail: chamb{at}pangea.stanford.edu; fax: (650) 725-0979
The surface uplift of mountain belts caused by tectonism plays an important role in determining the long-term climate evolution of the Earth. However, the general lack of information on the paleotopography of mountain belts limits our ability to identify the links and feedbacks between topography, tectonics, and climate change on geologic time-scales. Here, we present a
18O and D record of authigenic minerals for the northern Great Basin that captures the timing and magnitude of regional surface uplift and subsidence events in the western United States during the Cenozoic. Authigenic calcite, smectite, and chert 18O values suggest the northern Great Basin region experienced 
2km of surface uplift between the middle Eocene and early Oligocene followed by 1 to 2km of surface subsidence in the southern Great Basin and/or Sierra Nevada since the middle Miocene. These data when combined with previously published work show that the surface uplift history varied in both space and time. Surface uplift migrated from north to south with high elevations in southern British Columbia and northeastern Washington in the middle Eocene and development of surface uplift in north and central Nevada in the Oligocene. This pattern of north to south surface uplift is similar to the timing of magmatism in the western Cordillera, a result that supports tectonic models linking magamtism with removal of mantle lithosphere and/or a subducting slab.
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