Early Cenozoic uplift of the Puna Plateau, Central Andes, based on stable isotope paleoaltimetry of hydrated volcanic glass
Early Cenozoic uplift of the Puna Plateau, Central Andes, based on stable isotope paleoaltimetry of hydrated volcanic glass
复制标题
DOI：
10.1130/g35239.1
复制
发表时间：
2014-05-01
期刊：
影响因子：
5.8
通讯作者：
Schoenbohm, Lindsay M.
中科院分区：
文献类型：
--
作者：
Canavan, Robin R.;Carrapa, Barbara;Schoenbohm, Lindsay M.
中央安第斯山脉的隆起很大程度上被认为是在过去10英里内发生的。基于玻利维亚高原的古海拔测量研究。然而，整个中央安第斯山脉的时空隆升历史可能并不是统一的。我们给出了阿根廷西北部普纳高原(24度-26度S)Salar de Antofall、Salina del Fraile和Arizaro盆地的新的稳定同位素结果。火山玻璃样品给出了三角洲D古水值和模拟的古海拔，表明大约36 Ma以来普纳高原隆起(类似于4公里)，具有有限的(
Uplift of the Central Andes is largely thought to have occurred during the past 10 m.y. based on paleoaltimetry studies from the Altiplano of Bolivia. However, the spatio-temporal uplift history may not be uniform across the Central Andes. We present new stable isotopic results from the Salar de Antofalla, Salina del Fraile, and Arizaro Basin on the Puna Plateau (24 degrees-26 degrees S) of northwestern Argentina. Samples of volcanic glass give delta D-paleowater values and modeled paleoelevations that indicate an elevated (similar to 4 km) Puna Plateau since ca. 36 Ma with limited (