Late Cenozoic fluvial-lacustrine susceptibility increases in the Linxia Basin and their implications for Tibetan Plateau uplift
作者： Xiaoli Yan , Yunfa Miao , Jinbo Zan , Weilin Zhang , Song Wu
DOI: 10.1016/J.QUAINT.2013.12.046
关键词: Paleontology 、 Geomorphology 、 Fluvial 、 Cenozoic 、 Tectonics 、 Geology 、 Plateau 、 Structural basin
摘要: The variations and mechanisms of fluvial–lacustrine mass-specific magnetic susceptibility (χ) in the northeastern (NE) Tibetan Plateau are complex. In this study, we compiled two Miocene–Pliocene χ records (the Heilinding Maogou sections, respectively) from Linxia Basin sediments, NE to describe increases discuss their influential factors. section remained relatively stable at low values before ca. 8.5 Ma, has increased since 8.5 Ma with strong fluctuations. 6.0 Ma weak mean were higher than section. rock results showed that hematite dominated both sites during early periods (>8.5 Ma >6.0 Ma Maogou, respectively), was replaced by magnetite after time. Based on comparison other climate surrounding regions, increase around 8.5–6.0 Ma mainly driven tectonics Plateau.
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