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Dataset results
16 results for “10Be”
Data associated with the Tectonics manuscript "Building a Young Mountain Range: Insight into the Growth of the Greater Caucasus Mountains from Detrital Zircon (U-Th)/He Thermochronology and 10Be Erosion Rates"
<p>U-Pb and U-Th/He ages of zircons from a suite of detrital catchments reported in the manuscript "Building a Young Mountain Range: Insight into the Growth of the Greater Caucasus Mountains from Detrital Zircon (U-Th)/He Thermochronology and 10Be Erosion Rates" submitted to Tectonics. Repository includes sample locations and DEMs of each sampled catchment.</p>
Lithologic Compilation of Basins Sampled for Cosmogenic 10Be in the Greater Caucasus Mountains
<p>Document ('Litho_Compilation.pdf') describing the geologic map compilation process for areas covering a suite of catchments sampled for cosmogenic 10Be within the Greater Caucasus Mountains. A shapefile ('mapunits.shp') which includes these mapped regions is provided.</p>
Supplement - 10Be Raw Data
<p>Bedrock samples were pulverized to 62-250 μm at Northern Colorado University. At the University of Wyoming, magnetic and density separations were used to isolate quartz, and samples were leached with nitric and hydrofluoric acids to remove meteoric 10Be (Kohl and Nishiizumi, 1992; Whitmore et al., 2021; Corbett et al, 2021). Samples were dissolved, spiked with a 9Be carrier, Be was chemically isolated (Corbett et al., 2021), and the 10Be/9Be ratio was measured by Accelerator Mass Spectrometry at PRIMELab (Muzikar, 2003).</p> <p>Topographic shielding was calculated using the approach of Dunne 1999, and erosion rates were calculated using the CRONUS calculator (version 3, wrapper script version 3.1 and 10Be production by muons version 3.1). Erosion rates reported here use the 10Be production scaling framework of <a href="https://www.zotero.org/google-docs/?E3caIC">Lal (1991)</a> and <a href="https://www.zotero.org/google-docs/?L5s6dN">Stone (2000)</a>. CRONUS inputs needed to reproduce these calculations for other scaling schemes are reported in this Zenodo repository, along with 10Be resutls from PRIMELab. </p>
Dataset supplements to Wang et al Retreat of the Great Escarpment of Madagascar from Geomorphic Analysis and Cosmogenic 10Be Concentrations
<p>This dataset is supplemented to Wang, Y., Willett, S., Wu, D., Haghipour, N., & Christl, M. (2021). Retreat of the Great Escarpment of Madagascar from Geomorphic Analysis and Cosmogenic 10Be Concentrations. https://doi.org/10.1002/essoar.10507366.1. (in revision and under consideration at G-Cubed).</p>
Solar, atmospheric and volcanic impacts on 10Be depositions in Greenland and Antarctica during the last 100 years
<p>EGRIP <sup>10</sup>Be Data for the paper: "Solar, atmospheric and volcanic impacts on <sup>10</sup>Be depositions in Greenland and Antarctica during the last 100 years" in <em>Journal of Geophysical Research: Atmospheres</em></p> <p>(note: the version 1 is uploaded mistakenly with the old time scale, please use this file for the EGRIP data)</p>
Topographic Relief Response to Fluvial Incision in the Central Tibetan Plateau: Evidence From Cosmogenic 10Be
<p>Fluvial incision, regarded as one of the fundamental geomorphic processes, drives the evolution of mountainous landscapes. The transitional landscape from low-relief to high-relief in the central Tibetan Plateau is rapidly evolving as it is influenced by river dynamics, climate change and tectonic uplift. Combining cosmogenic <sup>10</sup>Be depth profile dating and topographic analysis, this study provides new constraints on the formation and destruction of low-relief surfaces in the central Tibetan Plateau. We find that the high-relief landscape in the Suoqu area (a major tributary of the upper Nu River) shows a rapid fluvial incision rate of 710 ± 70 mm kyr<sup>−1</sup> since the late Pleistocene, while the low-relief topography in the adjacent Xiaqiuqu area presents an order of magnitude lower incision rate of 70 ± 10 mm kyr<sup>−1</sup>. These results are consistent with the long-term (multi-million-year) exhumation rates derived from low-temperature thermochronology, suggesting that this region has experienced an evolving incision history. We interpret that the higher relief was caused by enhanced fluvial incision, and the lower relief was slowly developed by sedimentation and relatively steady low exhumation rate. The presence of a knickzone appears to mark the boundary between these differentially incising landscapes, which may be caused by rapid headward retreat and higher river discharge in the Suoqu River. The coincidence of fluvial terraces ages with climate-driven events, in addition to paleodenudation rates, indicates that the formation of fluvial terraces in the Xiaqiuqu and Suoqu areas might be associated with the quick sedimentation of weathered materials in early warming periods.<span> </span></p>
10Be concentrations constraining surface age and valley growth rate in a seepage-derived drainage network in the Apalachicola River basin, Florida
<p class="Head1"><span><span>Measuring rates of valley head migration and determining the timing of canyon-opening are insightful quantifications for the history and evolution of planetary surfaces. Horizontal spatial gradients of <em>in situ-</em>produced cosmogenic nuclide concentrations provide a framework for assessing the migration of these and similar topographic features. We developed a theoretical model for the concentration of <em>in situ</em> produced cosmogenic radionuclides in valley walls during retreat of a valley head. The retreat rate is inversely proportional to the magnitude of the spatial concentration gradient and proportional to local nuclide accumulation rates. By solving for a spatial gradient in concentration along a valley parallel transect, we created an expression for the explicit determination of valley head retreat, termed unzipping. We applied this theory to a developing seepage-derived drainage network along the Apalachicola River, Florida, USA. Sample concentrations along a valley margin transect vary systematically from 2.9 x 10<sup>5</sup> atoms/g to 3.5 x 10<sup>5</sup> atoms/g resulting in a gradient of 160 atoms/g/m, and from this value a valley head retreat rate of 0.025 m/y is found. The discrepancy between overall network age and current rates of valley head migration suggests intermittent network growth which is consistent with glacial-interglacial precipitation variations during the Pleistocene. This method can be applied to a wide range of Earth-surface environments. For the <sup>10</sup>Be system, this method should be sensitive to unzipping rates bounded between 10<sup>-6</sup> m/y and 10<sup>0</sup> m/y.</span></span></p>
10Be data for the Hyde and Dunstan faults
<p>Supporting data for Griffin, Stirling, Wilcken and Barrell: Late Quaternary slip rates for the Hyde and Dunstan faults, southern New Zealand: implications for strain migration in a slowly deforming continental plate margin</p>
Dataset: Quantification of post-glacier bedrock surface erosion in the European Alps using 10Be and optically stimulated luminescence exposure dating
<p>This contains the dataset associated with the publication titled "Quantification of post-glacier bedrock surface erosion in the European Alps using 10Be and optically stimulated luminescence exposure dating" published in Earth Surface Dynamics (2022).</p>
Simulations of 10Be production via CCM SOCOL-AERv2-BE (96 tracers for 10Be)
<p>Here you can see global 10Be content (at/m^3) of different sources (see tab. 1 in paper) produced by GCR and SCR for the ground level. </p> <p>Here are two folders with the same structure:<br> 1) GCR<br> 2) SCR</p> <p>In thise folders 96 .txt files and 97 .xls files.</p> <p>In .txt files the first column is latitude and the first line is longitude. For each point values of 10Be content (at/m^3) in ground level.</p> <p>In .xls the same values, but grid for these values in an independent file called grid_size.xls.</p> <p>You can choose a format file which more comfortable for you.</p>
Supplement - 10Be Location Data
<p>We measured background erosion rates averaged over millennial timescales using in-situ cosmogenic 10Be in bedrock samples from six different sedimentary units that outcrop along the rangefront (location data found in this Zenodo repository in GIS Shapefile Format.</p>
Table presenting field data, isotopic data and 10Be exposure ages of cliffs and caprock-derived boulders sampled on the southern slope of the mesa of Szczeliniec Wielki (Central Sudetes, Stołowe Mountains, SW Poland)
<p><span>This research was funded by National Science Centre, Poland, research project no. 2020/39/D/ST10/00861.</span></p> <p><span>The data in the table presents the results of cosmogenic </span><sup><span>10</span></sup><span>Be exposure dating of cliffs and hillslope boulders resting on the southern slope of the sandstone mesa of Szczeliniec Wielki (Central Sudetes, Stołowe Mountains, SW Poland). The total of 20 samples was collected with growing distance from the present-day cliff lines. The samples were collected in October 2021, whereas their treatment and analyses were conducted in the following months at the University of Zurich (UZH) and ETH Zurich, Switzerland.</span></p> <p> </p> <p> </p>
Simulations of 7Be and 10Be with the GEOS-Chem global model v14.0.2 using state-of-the-art production rates
<p>Data repository for the paper: "Simulations of <sup>7</sup>Be and <sup>10</sup>Be with the GEOS-Chem global model v14.0.2 using state-of-the-art production rates"</p> <p>Created by Minjie Zheng (minjie.zheng@env.ethz.ch)</p> <p><strong>The files, model_output_LP67.zip, model_output_P16.zip and model_output_P16spa.zip are the model outputs based on the LP67 production rate, P16 production rate and P16spa production rate. </strong></p> <p><strong>GEOS-Chem14.0.2_Be7Be10.zip includes following folders</strong></p> <p><strong>-> "Model_modified" folder</strong><br> - GEOS-Chem 14.0.2: The folder contains a complete code directory of GEOS-Chem v14.0.2. Details for this see the website: https://wiki.seas.harvard.edu/geos-chem/index.php/GEOS-Chem_14.0.2<br> - hcox_gc_RnPbBe_mod_P16.F90: This file replaces HEMCO/Extensions/hcox_gc_RnPbBe_mod.F90 under GEOS-Chem v14.0.2 code directory to read the updated Be7 and Be10 production file. Search 'mzheng' in the file for modifications.</p> <p><strong>-> "ZHENG_BE7BE10" folder includes updated global <sup>7</sup>Be and <sup>10</sup>Be production rates</strong><br> - BE7BE10_P16spa_4x5: Netcdf files for the <sup>7</sup>Be and <sup>10</sup>Be production rates from Poluianov et al., (2016) production model using the solar modulations from Herbst et al., (2017) and geomagnetic cut-off rigidity from Copeland (2018)<br> - BE7BE10_P16_4x5: Netcdf files for the <sup>7</sup>Be and <sup>10</sup>Be production rates from Poluianov et al., (2016) production model using the solar modulations from Herbst et al., (2017) and geomagnetic cut-off rigidity approximated by the Stoermer equation</p> <p> </p> <p> </p>
Topographic Relief Response to Fluvial Incision in the Central Tibetan Plateau: Evidence From Cosmogenic 10Be
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10Be concentrations constraining surface age and valley growth rate in a seepage-derived drainage network in the Apalachicola River basin, Florida
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Supplementary data(Jiacha County area) (including Liegang landslide boundary,Yarlung Tsangpo faults locations, and 14C and 10Be sampling locations) (V1)
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Allen Brain Atlas
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International Brain Laboratory public data
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OpenNeuro
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