Thermochronologic age-temperature and age-elevation relationships are commonly used to quantitatively constrain the long-term tectonic evolution of an orogen. In contrast to the age-temperature relationship, the age-elevation relationship has more advantages in calculating exhumation rates of rocks without the imposed geothermal gradient. However, the potential functions of the age-elevation relationship in extracting cooling and exhumation signals of rocks need the presupposition of stable geothermal gradient.
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