Jason Barnes: MS Research

MS Research - Jason Barnes

MAIN RESEARCH INTERESTS:

Quantyfing the spatial and temporal variability in erosion across the central Andean fold-thrust belt and plateau margin, Bolivia.

GOALS:

(by Horton,'99)

APPROACH:

(A)

(B)

METHODS:

(A)

(B)

(C)

DATABASES:

Denudation-rate estimates

Rates from a variety of methods such as thermochronology, cosmogenics, basin fill volumes and more.

Sediment gauging stations

Suspended sediment flux data compiled from Guyot et al., '88, '90, '93,'94.

Watersheds and longitudinal river profiles.

DATA COLLECTION:

(A) Longitudinal River Profile Data

(most elevation data from B. Isacks)

(B) Basin-averaged denudation rates

Safran et al., '05

(C) Exhumation rates from thermochronology

Benjamin et al.,'87, Safran,'98, Ege et al.,'03, (reinterp) Anders et al.,'02

uplift history constraints; Gregory-Wodzicki,'00

(D) Rock material area removed by erosion

structure from McQuarrie,'01, McQuarrie & DeCelles,'01, McQuarrie,'02

Diagram illustrating methodology for material removed by erosion from above the present-day topography of a balanced section.

ANALYSIS:

(Knighton,'98, Asselman,'00)

(Lecce,'97, Knighton,'99)

E = K*(A)^m*(S)^n

(stream-power calibrations: Stock & Montgomery,'99, Snyder et al.,'00, Whipple et al.,'00, Kirby & Whipple,'01)

(Anhert,'70, Summerfield & Hulton,'94, Ritter et al.,'95, Rodriguez-Iturbe & Rinaldo,'97, Hovius,'98)

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RELATED POSTERS:

Erosion Mapping of the Bolivian Central Andes
Using the Stream-power Erosion Law
and a Digital Elevation Model

Longitudinal Profiles of Mountain Rivers:
A Calibrated Stream-Power Perspective on Denudation in the Central Bolivian Andes

Abstract (Geodaze April 2002)

Abstract (AGU December 2002)