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After the granite was emplaced and exposed, it underwent about 50–60 million years of tectonic and geomorphological evolution. This process created two ancient, uplifted peneplains: the "Yujingfeng-aged matureland" at an elevation of 1600–1800 meters and the "Huaiyushan-aged matureland" at 1200–1300 meters above sea level. These represent old, mature erosion surfaces that were later uplifted and dissected to form the dramatic, youthful-looking peaks that tourists see today. This example shows how maturelands can be preserved as flat-topped summits in a mountain range, serving as relict features from a past geological era. matureland
: Millions of years of steady atmospheric exposure allow deep layers of weathered rock and soil (regolith) to build up without being immediately stripped away by landslides or rapid runoff. Famous Case Studies: The Atacama and Northern Chile To help me tailor more specific information for