Palynological evidence for Late Miocene–Pliocene vegetation evolution recorded in the red clay sequence of the central Chinese Loess Plateau and implication for palaeoenvironmental change

Wang, Luo; Lü, Houyuan; Wu, Naiqin; Li, J.; Pei, Yangli; Tong, Guobang; Peng, Shuzhen

doi:10.1016/j.palaeo.2006.06.012

Cited by 59 publications

(45 citation statements)

References 50 publications

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“…3). More abundant carbonate in the Red Clay than in the Quaternary loess-derived palaeosol that has been observed in the profiles may provide additional support for a warm-drier climate that is suggested by pollen study of the Red Clay (Wang et al, 2006) and contemporary fluviolacustrine sediments (Han et al, 1997).…”

Section: Palaeoclimatic Implicationsmentioning

confidence: 57%

“…On the other hand, palaeoclimatic study of the late Pliocene Red Clay indicates a relatively constant warm and drier climate in the southern part of the Loess Plateau (Han et al, 2002), in accord with pollen study of contemporary fluviolacustrince sequence in the same region (Han et al, 1997). Very recently, a number of palaeoclimatic studies of the Red Clay focus on the Xifeng area (Vandenberghe et al, 2004;Sun et al, 2006;Wang et al, 2006;Wu et al, 2006), suggesting some cyclic variations (Vandenberghe et al, 2004;Sun et al, 2006), or longterm stepwise changes of the Pliocene palaeoclimate (Wang et al, 2006;Wu et al, 2006). It should be pointed out that, however, the previous palaeoclimatic studies of the Red Clay are mainly focused on a few individual sites in the southern part of the Loess Plateau, and the regional palaeoclimate pattern through the Pliocene remains to be clarified.…”

Section: Introductionmentioning

confidence: 79%

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Spatial and temporal patterns of grain size and chemical weathering of the Chinese Red Clay Formation and implications for East Asian monsoon evolution

Han

HeHai

Fyfe

et al. 2007

Geochimica et Cosmochimica Acta

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Section: Palaeoclimatic Implicationsmentioning

confidence: 57%

Section: Introductionmentioning

confidence: 79%

Spatial and temporal patterns of grain size and chemical weathering of the Chinese Red Clay Formation and implications for East Asian monsoon evolution

Han

HeHai

Fyfe

et al. 2007

Geochimica et Cosmochimica Acta

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“…At Xifeng, the arboreal abundance was 24% before 3.7 Ma, and decreased to 11% after that time. The reduction of arboreal taxa indicates that the vegetation gradually changed from temperate forest plants to typical grassland after 3.7 Ma [14]. At the most northerly section of the Luzigou, the arboreal abundance was 24%, and there were subtropical Rutaceae and Rhus surviving before 3.5 Ma.…”

Section: The Strong East Asian Summer Monsoon Before 35 Mamentioning

confidence: 98%

“…The pollen data of the Luzigou section is the most northerly vegetation record so far, which allows evaluation of latitudinal trends for the ecosystem evolution during the Pliocene. The limited previous published pollen data are restricted to the central and southern CLP, including red clay deposition sections, such as the Xifeng [14], Chaona [15], and fluvial deposition, such as Yushe [30] and Lingtai [31], covering the interval from ~7 Ma to ~2 Ma.…”

Section: The Strong East Asian Summer Monsoon Before 35 Mamentioning

confidence: 99%

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Pollen evidence from Baode of the northern Loess Plateau of China and strong East Asian summer monsoons during the Early Pliocene

Fang

et al. 2011

Chin. Sci. Bull.

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The red clay eolian sequence on the Chinese Loess Plateau (CLP) is an important archive for paleoclimate change from the late Miocene to Pliocene, and can provide significant information for the controversial problems of East Asian monsoon evolution and its forcing mechanism. In this study, we present a pollen record from Baode, northern CLP. The record shows four stages of paleoecological evolution. From 5.6-4.4 Ma, a forest steppe ecosystem developed under an extremely warm period with high seasonal precipitation. Since 4.4 Ma, a drier episode occurred, which prompted parkland landscapes to develop. During 3.5-3.05 Ma, the environment changed to a rather open steppe ecosystem with a much cooler and drier climate. After 3.05 Ma, the vegetation evolved to forest steppe. Using the percentages of arboreal plants to mirror precipitation, and comparing with other published pollen data from the CLP, we find the existence of S-N directionality of the precipitation change and high percentage of arboreal plants in the entire CLP during the Early Pliocene, which suggest the CLP was characterized by a strong East Asian summer monsoon. The strong summer monsoon corresponds well to the low global ice volume, which may illuminate global climate mechanism for the summer monsoon evolution in the early Pliocene.

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Magneto‐ and cyclostratigraphy in the red clay sequence: New age model and paleoclimatic implication for the eastern Chinese Loess Plateau

2015

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The Chinese Loess Plateau red clay sequences display a continuous alternation of sedimentary cycles that represent recurrent climatic fluctuations from 2.58 Ma to the Miocene. Deciphering such a record can provide us with vital information on global and Asian climatic variations. Lack of fossils and failure of absolute dating methods made magnetostratigraphy a leading method to build age models for the red clay sequences. Here we test the magnetostratigraphic age model against cyclostratigraphy. For this purpose we investigate the climate cyclicity recorded in magnetic susceptibility and sedimentary grain size in a red clay section previously dated 11 Myr old with magnetostratigraphy alone. Magnetostratigraphy dating based on only visual correlation could potentially lead to erroneous age model. In this study the correlation is executed through the iteration procedure until it is supported by cyclostratigraphy; i.e., Milankovitch cycles are resolved in the best possible manner. Our new age model provides an age of 5.2 Ma for the Shilou profile. Based on the new age model, wavelet analysis reveals the well‐preserved 400 kyr and possible 100 kyr eccentricity cycles on the eastern Chinese Loess Plateau. Further, paleomonsoon evolution during 2.58–5.2 Ma is reconstructed and divided into three intervals (2.58–3.6 Ma, 3.6–4.5 Ma, and 4.5–5.2 Ma). The upper part, the youngest stage, is characterized by a relatively intensified summer monsoon, the middle stage reflects an intensification of the winter monsoon and aridification in Asia, and the earliest stage indicates that summer and winter monsoon cycles may have rapidly altered. The use of cyclostratigraphy along with magnetostratigraphy gives us an effective method of dating red clay sequences, and our results imply that many presently published age models for the red clay deposits should be perhaps re‐evaluated.

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Palynological evidence for Late Miocene–Pliocene vegetation evolution recorded in the red clay sequence of the central Chinese Loess Plateau and implication for palaeoenvironmental change

Cited by 59 publications

References 50 publications

Spatial and temporal patterns of grain size and chemical weathering of the Chinese Red Clay Formation and implications for East Asian monsoon evolution

Spatial and temporal patterns of grain size and chemical weathering of the Chinese Red Clay Formation and implications for East Asian monsoon evolution

Pollen evidence from Baode of the northern Loess Plateau of China and strong East Asian summer monsoons during the Early Pliocene

Magneto‐ and cyclostratigraphy in the red clay sequence: New age model and paleoclimatic implication for the eastern Chinese Loess Plateau

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