Data related to OSL age determinations of 33 samples from the Yaoxian, Jingchuan and Huanxian sections.

<p>Data related to OSL age determinations of 33 samples from the Yaoxian, Jingchuan and Huanxian sections.</p

The rapid change in magnetic susceptibility (MS) across the Pleistocene/Holocene transition along a transect from northwest to southeast across the CLP (b-g), and correlation with the LR04 δ¹⁸O record [27].

<p>b Weinan section [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0133541#pone.0133541.ref035" target="_blank">35</a>]; c Yaoxian section; d Luochuan section [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0133541#pone.0133541.ref017" target="_blank">17</a>]; e Jingchuan section; f Yulin section [<a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0133541#pone.0133541.ref040" target="_blank">40</a>]; g Huanxian section.</p

Pedostraigraphy, magnetic susceptibility and OSL ages versus depth for the loess sections at Yaoxian (a), Jingchuan (b) and Huanxian (c) since the last glacial.

<p>Pedostraigraphy, magnetic susceptibility and OSL ages versus depth for the loess sections at Yaoxian (a), Jingchuan (b) and Huanxian (c) since the last glacial.</p

Equivalent dose (De) determination for two samples, L2021 (a, b) and L2028 (c, d), using the SAR protocol.

<p>(a) and (c), decay curves of natural OSL intensity. (b) and (d), representative SAR growth curve for a single aliquot of fine-grained quartz.</p

Data related to OSL age determinations of 33 samples from the Yaoxian, Jingchuan and Huanxian sections.

<p>Data related to OSL age determinations of 33 samples from the Yaoxian, Jingchuan and Huanxian sections.</p

Variations in terrestrial mollusks versus depth in the Dongwan sequence.

<p>Lithology and total mollusk individuals are from Li et al., (2006a) <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0095754#pone.0095754-Li2" target="_blank">[58]</a> and Li et al. (2008) <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0095754#pone.0095754-Li1" target="_blank">[47]</a>. S(CA)–Total number of species of the cold-aridiphilous (CA) mollusk group. <i>H</i>(CA)–Diversity of the CA mollusk group. S(TH)–Total number of species of the thermo-humidiphilous (TH) mollusk group. <i>H</i>(TH)–Diversity of the TH mollusk group. S(total)–Total number of species of the total mollusk group. <i>H</i>(total)–Diversity of the total mollusk group. E(total)–Equitability of the total mollusk group.</p

Variations in the terrestrial mollusks of the Dongwan sequence in the western CLP from 7.1 to 3.5 Ma, and comparison with other climate proxies.

<p>The proxies are δ¹³C of soil carbonate (δ¹³C_SC) in the Lingtai Red Clay sequence <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0095754#pone.0095754-Ding1" target="_blank">[6]</a>, loess and soil thickness in the Dongwan sequence (this study), global cooling trend deduced from the marine benthic foraminiferal δ¹⁸O record <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0095754#pone.0095754-Zachos1" target="_blank">[1]</a>, and continental aridity inferred from the mass accumulation rate (MAR) of eolian dust at ODP Site 885/886 in the western Pacific <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0095754#pone.0095754-Rea1" target="_blank">[69]</a>. Geomagnetic polarity chronology and age of the Dongwan sequence is from Hao and Guo (2004) <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0095754#pone.0095754-Hao2" target="_blank">[41]</a>. S(CA)–Total species of the cold-aridiphilous (CA) mollusk group. <i>H</i>(CA)–Diversity of the CA mollusk group. S(TH)–Total number of species of the thermo-humidiphilous (TH) mollusk group. <i>H</i>(TH)–Diversity of the TH mollusk group.</p

Location of the Chinese Loess Plateau (CLP), the studied Dongwan loess-paleosol sequence and other Neogene sections mentioned in the text.

<p>The Dongwan sequence is indicated by a red circle and other sections by white circles. Main cities are indicated by black squares.</p

Chronology of the Dongwan loess-paleosol sequence (modified after Hao and Guo, 2004)

<p><a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0095754#pone.0095754-Hao2" target="_blank">[41]</a>.</p

Variations in mollusk shell tool (red curve) and ornament (blue curve) quantities in Guanzhong Basin during mid-Neolithic.

<p>The archaeological sites labeled on the X axis are listed according to their longitudes with the westernmost GTY on the left and the easternmost Quanhu on the right. GTY–Guantaoyuan; BSL–Beishouling; AB–Anban; HXZ–Huxizhuang; BJC–Baijiacun; JZ–Jiangzhai; QH–Quanhu.</p