User Guide for Luminescence Sampling in Archaeological and Geological Contexts

Nelson, Michelle S.; Gray, Harrison J.; Johnson, J. P.; Rittenour, Tammy M.; Feathers, James K.; Mahan, Shannon A.

doi:10.7183/2326-3768.3.2.166

Cited by 65 publications

(33 citation statements)

References 64 publications

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“…Five OSL samples and a cosmogenic 10 Be depth profile allow us to date relict McKinley River deposits on three terrace levels across the Kantishna Hills anticline (Tables S1–S6 and Figures S1–S7). To constrain terrace abandonment timing, we collected OSL samples of silt and fine sand near the stratigraphic top of fluvial deposits on the highest (Qt1, n = 1) and lowest (Qt3, n = 4) strath terraces (Figures c and S2–S5) using opaque metal pipes (Nelson et al, ). We analyzed quartz grains from these samples at the Utah State University Luminescence Laboratory following standard single‐aliquot regenerative‐dose procedures (Murray & Wintle, , ; Wintle & Murray, ).…”

Section: Methods and Resultsmentioning

confidence: 99%

Pace and Process of Active Folding and Fluvial Incision Across the Kantishna Hills Anticline, Central Alaska

Bender

Lease

Haeussler

et al. 2019

Geophysical Research Letters

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Rates of northern Alaska Range thrust system deformation are poorly constrained. Shortening at the system's west end is focused on the Kantishna Hills anticline. Where the McKinley River cuts across the anticline, the landscape records both Late Pleistocene deformation and climatic change. New optically stimulated luminescence and cosmogenic 10Be depth profile dates of three McKinley River terrace levels (~22, ~18, and ~14–9 ka) match independently determined ages of local glacial maxima, consistent with climate‐driven terrace formation. Terrace ages quantify rates of differential bedrock incision, uplift, and shortening based on fault depth inferred from microseismicity. Differential rock uplift and incision (≤1.4 m/kyr) drive significant channel width narrowing in response to ongoing folding at a shortening rate of ~1.2 m/kyr. Our results constrain northern Alaska Range thrust system deformation rates, and elucidate superimposed landscape responses to Late Pleistocene climate change and active folding with broad geomorphic implications.

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Section: Methods and Resultsmentioning

confidence: 99%

Pace and Process of Active Folding and Fluvial Incision Across the Kantishna Hills Anticline, Central Alaska

Bender

Lease

Haeussler

et al. 2019

Geophysical Research Letters

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“…The systematics of OSL techniques are well known [39][40][41]. Luminescence samples were prepared for dating at the U.S. Geological Survey's Luminescence Geochronology Laboratory in Denver, CO using standard protocols [42,43]. Briefly, under subdued orange-light conditions, applications of 4 M HCl and 45% hydrogen peroxide were applied to the samples followed by wet sieving isolated grains with diameters of 250-63 µm.…”

Section: Luminescence Datingmentioning

confidence: 99%

Late Quaternary Soil Development Enhances Aeolian Landform Stability, Moenkopi Plateau, Southern Colorado Plateau, USA

et al. 2018

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The Moenkopi dune field in northeastern Arizona covers roughly 1250 km 2 , but most of the field is inactive. Dune deposits on the Moenkopi Plateau (MP) have remained inactive throughout the Holocene despite periods of elevated aridity or historical reductions of vegetation cover by livestock grazing. We argue that this inactivity is not because of any diminishment of driving forces in the aeolian system (e.g., insufficient winds), but rather because of increased cohesion due to soil development that enhances resistance to wind erosion. Abundant aeolian sediments were supplied to the Black Mesa region by the Little Colorado River and its tributaries during the late Pleistocene (MIS 2 and 3), which enabled the development of climbing dunes and transport of sand over the Adeii Eechii Cliffs and onto the MP. These deposits (Qe1) stabilized during the Pleistocene/Holocene climatic transition (~12-7.5 ka) because of reduced sediment supply and high dust flux which resulted in rapid soil formation. Erosion of climbing dunes/sand ramps from the Adeii Eechii Cliffs eliminated delivery of large quantities of new sand to the MP during the mid to late Holocene. Soil development within the Qe1 mantle increased sediment cohesion and prevented widespread aeolian reactivation during the Holocene, despite the occurrence of conditions (wind speed, climate, etc.) under which dune reactivation would be expected. Drylands comprise roughly 40% of the land cover of earth and climate models predict their expansion. Pedogenic stability is not commonly considered in climate-based models used to predict aeolian activity. To improve predictions of future dune activity in drylands, the degree of soil development in aeolian deposits should be considered when evaluating sediment availability in aeolian systems.

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“…The sampling for OSL dating followed the guidelines defined by Nelson et al (2015). The sediments were collected with opaque PVC tubes to avoid exposure to sunlight.…”

Section: Dating By Optically Stimulated Luminescence (Osl)mentioning

confidence: 99%

Luminescence Chronology of Terrace Development in the Upper Paraná River, Southeast Brazil

et al. 2019

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User Guide for Luminescence Sampling in Archaeological and Geological Contexts

Cited by 65 publications

References 64 publications

Pace and Process of Active Folding and Fluvial Incision Across the Kantishna Hills Anticline, Central Alaska

Pace and Process of Active Folding and Fluvial Incision Across the Kantishna Hills Anticline, Central Alaska

Late Quaternary Soil Development Enhances Aeolian Landform Stability, Moenkopi Plateau, Southern Colorado Plateau, USA

Luminescence Chronology of Terrace Development in the Upper Paraná River, Southeast Brazil

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