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Zircon U‐Pb Ages of Quaternary Loess‐Paleosol Sequences from the Luochuan Section: Implication for Sediment Provenance
Author(s) -
GONG Hujun,
XIE Wenbin,
WANG Jiading,
ZHANG Rui,
ZHANG Yunxiang,
YANG Lirong
Publication year - 2017
Publication title -
acta geologica sinica ‐ english edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.444
H-Index - 61
eISSN - 1755-6724
pISSN - 1000-9515
DOI - 10.1111/1755-6724.13089
Subject(s) - loess , geology , china , chinese academy of sciences , quaternary , provenance , archaeology , geochemistry , geomorphology , paleontology , geography
U-Pb geochronology of detrital zircons is one of the powerful approaches to trace sediment provenances because the multi-age populations can reveal the multisource regions. This study provides the U-Pb ages of detrital zircons of the Quaternary loess-paleosol sequences from the Luochuan section of the Chinese Loess Plateau. Totally, eight layers were sampled. From the top to the bottom, it includes the dark loessial soil S0 (0.067±0.02 Ma), Malan loess L1 (0.12–0.08 Ma), second loess L2 (0.196–0.12 Ma), second paleosol S2 (0.246–0.196 Ma), second silt L15 (1.25–1.1 Ma), twenty-fourth loess L24 (1.6 Ma), twenty-sixth loess L29 (1.87 Ma), and bottom loess L33 (2.5 Ma) layers. They are utilized to constrain the provenances of sediments in this region after 2.58 Ma.