Bedrock Exhumation and Landscape History of Western Colorado Mountains
Applies apatite (U-Th)/He thermochronology to reconstruct the cooling, exhumation, and river incision history of the Elk Mountains and upper Colorado drainage basin in western Colorado.
Knowledge Graph (19 nodes, 58 connections)
Concept (4) →
thermochronology
Dating technique that determines cooling histories of rocks using temperature-sensitive radiometric systems
exhumation
Process of bringing rocks from depth to the surface through erosional unroofing
closure temperature
Temperature below which a thermochronological system retains daughter products, ~70°C for apatite He system
laccolith
Concordant igneous intrusion that has been injected between rock strata causing uplift
Protocol (2) →
Apatite (U-Th)/He thermochronology
Low-temperature thermochronological method measuring helium accumulation in apatite grains to determine cooling ages and thermal histories. Involves h...
Apatite mineral separation
Standard protocol for isolating apatite grains from crushed rock samples using density and magnetic separation techniques followed by hand picking und...