Holocene loess in Illinois revealed by OSL dating: Implications for stratigraphy and geoarchaeology of the Midwest United States

Miao, Xiaodong; Hanson, Paul R.; Stohr, Christopher J.; Wang, Hong

doi:10.1016/j.quascirev.2018.09.039

Cited by 10 publications

(6 citation statements)

References 52 publications

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“…This pattern appears to be systematic for all OSL and pIRIRSL ages. Luminescence dating does not encounter such problems in loess areas with much higher sand content than the Madaras LPS, such as the Holocene loesses of the Great Plains (USA) [60,61], which could reflect differences in the sources of the sand. Dim signals and wide distributions in quartz De values, especially for different grain-size samples, have been reported in several studies [51][52][53]62], although whether the observed differences relate to intrinsic properties of the quartz or bleaching remains as yet unexplained.…”

Section: Discussionmentioning

confidence: 99%

Comparison of High-Resolution 14C and Luminescence-Based Chronologies of the MIS 2 Madaras Loess/Paleosol Sequence, Hungary: Implications for Chronological Studies

et al. 2022

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Numerous loess/paleosol sequences (LPS) in the Carpathian Basin span the period of Marine Isotope Stage (MIS) 2 and the last glacial maximum (LGM). Nevertheless, only two known records—Madaras and Dunaszekcső—preserve highly resolved records with absolute chronologies with minimal uncertainties, which enable the meaningful assessment of feedbacks and short-term climatic fluctuations over this period. The Madaras profile is located at the northern margin fringe of the Bácska loess plateau; Dunaszekcső, located on the Danube to its west, yields a chronology built on over 100 14C dates yet spans only part of MIS 2, missing half of the LGM including its peak. Here, we add to the previously published 14C chronology for Madaras (15 dates) with an additional 17 14C and luminescence ages. Resulting age models built solely on quartz OSL and feldspar pIRIRSL data underestimate the 14C based chronology, which is likely based on inaccuracies related to luminescence signal behavior; we observe age underestimations associated with unusual quartz behavior and significant signal loss, a phenomenon also observed in Serbian and Romanian loess, which may relate to non-sensitized grains from proximal sources. Our new chronology provides higher resolution than hitherto possible, yielding consistent 2 sigma uncertainties of ~150–200 years throughout the entire sequence. Our study indicates that the addition of further dates may not increase the chronological precision significantly. Additionally, the new age model is suitable for tackling centennial-scale changes. The mean sedimentation rate based on our new age-depth model (10.78 ± 2.34 years/cm) is the highest yet recorded in the Carpathian Basin for MIS 2. The resolution of our age model is higher than that for the Greenland NGRIP ice core record. The referred horizons in our profile are all characterized by a drop in accumulation and a higher sand input, the latter most likely deriving from nearby re-exposed sand dunes.

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Section: Discussionmentioning

confidence: 99%

Comparison of High-Resolution 14C and Luminescence-Based Chronologies of the MIS 2 Madaras Loess/Paleosol Sequence, Hungary: Implications for Chronological Studies

et al. 2022

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“…Vegetation cover has multiple effects on dust accumulation and preservation (Muhs et al, 2003;Tsoar & Pye, 1987) including: (a) intercepting grains in low suspension transport, (b) increasing the roughness height to slow down wind speeds, and (c) decreasing grain re-entrainment after deposition. During the last glacial maximum, global dust flux increased and led to thick loess deposits in the CLP (upper Malan loess) (Kang et al, 2015;Kohfeld & Harrison, 2003) and the central United States (Peoria loess) (Bettis et al, 2003;Mason et al, 2008;Miao et al, 2018). In contrast, multiple sites show that loess dating to MIS 2 is not preserved in the interior TP.…”

Section: Role Of Vegetation Cover For Dust Accumulationmentioning

confidence: 99%

Tibetan Dust Accumulation Linked to Ecological and Landscape Response to Global Climate Change

Huang

Miao

Chang

et al. 2021

Geophysical Research Letters

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Climate change affects ecosystems and landscapes through changes in mean conditions (e.g., slow solar insolation change) (Joshi et al., 2011;Steinbauer et al., 2018) and through rapid climatic events (Alley et al., 2003). A recent study has emphasized that it is critical to shift focus from target states to target rates of ecological change, distinguishing fast, slow and abrupt responses to climatic forcing (Williams et al., 2021), where abrupt responses are nonlinear, and related to thresholds and tipping points (Lenton et al., 2008). Past climate change, especially during the Late Quaternary with frequent abrupt climatic oscillations, provides an opportunity to identify hotspots of vulnerability and resilience and determine management interventions. In order to differentiate the fast-slow-abrupt response rates, however, one of the most critical prerequisites is the availability of well-dated climatic records for analysis of leads and lags, especially in places sensitive to climatic change like the Tibetan Plateau (TP).The TP (Figure 1a) is a current hotspot of Earth system research, and the conservation status of the TP loess steppe ecoregion is expected to be vulnerable to changes in future warming scenarios (Beaumont et al., 2011). As one of the most sensitive areas to response to global climate change, warming in the TP occurred not only earlier based on modern observations (Liu & Chen, 2000), but also with large magnitude of temperature shifts based on climate modelling (Brown et al., 2020). Without understanding the processes and mechanisms of landscape and ecosystem evolution within the TP, it is challenging to adapt to and mitigate the consequences from

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“…In light of this assumption, a grain-size age model was put forward by Porter and An [17]. Subsequently, this model was repeatedly adopted and modified [66,67]. However, the "grain-size" model was questioned by a high-density OSL dating at Luochuan profile, and a Multiple Aliquot Regenerative-dose (MAR) method was proposed to obtain quartz OSL ages at the loess-paleosol section [21].…”

Section: Time Resolution and The Accuracy Of Osl Agesmentioning

confidence: 99%

Climate Change and Vegetation Evolution during the Transition from Marine Isotope Stage 5 to 4 Based on Two Typical Profiles at the Southern Chinese Loess Plateau

Lin

et al. 2020

Sustainability

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The geological transitional period from the Marine Isotope Stage (MIS) 5 to 4 during the Quaternary period is a multidimensional change involving monsoon and precipitation variation, vegetation dynamics, and environmental evolution. The first loess layer (L1) and the first paleosol layer (S1) in the Chines Loess Plateau provide excellent high-resolution terrestrial sediment record for this transition. In this work, grain size (GS), CaCO3 content, magnetic susceptibility (MS), and pollen composition were measured at intervals of 2-cm in two representative L1/S1 profiles in the southern Chinese Loess Plateau to reconstruct records of climatic and vegetative changes during this transition. Our results showed that, in general, the paleo-vegetation type was forest-steppe, with Pinus being the commonest tree, and Chenopodiaceae and Artemisia being common herbs in the study area. The topography had a significant impact on the distribution of paleo-vegetation. The increase of coarse particles, the decrease of magnetic susceptibility, and the rising percentage of Gramineae, Artemisia and Chenopodiaceae pollen, all indicated that the paleoclimate became cooler and drier over the transitional period. Besides, we identified a cool event at about 76.8 ka B.P. as revealed by grain-size curves, and in response to this event, the vegetation changed significantly but lagged several hundred years behind the grain size record. This study confirmed the cooling and drying tendency during the MIS 5 to 4 transition phase in the southern margin of the Chinese Loess Plateau. These findings shed light on the climatic change on vegetation evolution during the MIS 5 to 4 transition period.

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Holocene loess in Illinois revealed by OSL dating: Implications for stratigraphy and geoarchaeology of the Midwest United States

Cited by 10 publications

References 52 publications

Comparison of High-Resolution 14C and Luminescence-Based Chronologies of the MIS 2 Madaras Loess/Paleosol Sequence, Hungary: Implications for Chronological Studies

Comparison of High-Resolution 14C and Luminescence-Based Chronologies of the MIS 2 Madaras Loess/Paleosol Sequence, Hungary: Implications for Chronological Studies

Tibetan Dust Accumulation Linked to Ecological and Landscape Response to Global Climate Change

Climate Change and Vegetation Evolution during the Transition from Marine Isotope Stage 5 to 4 Based on Two Typical Profiles at the Southern Chinese Loess Plateau

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