Dataset

Detrital zircon (U-Th)/He thermochronometry data from the Leones Valley, Patagonian Andes

Falkowski, Sarah; Ehlers, Todd; Madella, Andrea; Glotzbach, Christoph; Georgieva, Viktoria; Strecker, Manfred;

2021 || GFZ Data Services

The data presented here were produced to study glacial and glacio-fluvial catchment erosion using 'tracer thermochronology' where detrital downstream samples can be used to infer the source elevation sectors of sediments when integrated with known surface bedrock ages from the catchment. For the first time, our study used the zircon (U-Th)/He (ZHe) method as tracer thermochronometer. The samples come from the Leones Valley at the northeastern flank of the Northern Patagonian Icefield, Chile (46.7° S) This data set comprises ZHe analytical results from (i) six detrital samples of different depositional age and grain size (622 single-grain analyses in total), and (ii) two previously analyzed (Andrić-Tomašević et al., 2021) bedrock samples (22 single-grain analyses in total), as well as grain size measurements and lithology identification of two of the detrital samples (two pebble samples with 262 and 211 pebbles, respectively). Data are provided in 10 tab-delimited text files. The full description of the data and methods is provided in the data description file.

Originally assigned keywords

Corresponding MSL vocabulary keywords

MSL enriched keywords

MSL enriched sub domains	microscopy and tomography
Source	http://dx.doi.org/10.5880/fidgeo.2021.027
Source publisher	GFZ Data Services
DOI	10.5880/fidgeo.2021.027
Authors	Falkowski, Sarah 0000-0001-8745-4387 Department of Geosciences, University of Tübingen, Tübingen, Germany; Ehlers, Todd 0000-0001-9436-0303 Department of Geosciences, University of Tübingen, Tübingen, Germany; Madella, Andrea 0000-0001-8987-6612 Department of Geosciences, University of Tübingen, Tübingen, Germany; Glotzbach, Christoph 0000-0003-4591-3025 Department of Geosciences, University of Tübingen, Tübingen, Germany; Georgieva, Viktoria 0000-0003-3597-8175 Institute for Earth Sciences/Institute of Physics and Mathematics, Universidad Austral de Chile, Valdivia, Chile; Strecker, Manfred 0000-0002-5952-0057 Institute of Geosciences, University of Potsdam, Potsdam, Germany;
Contributors	Falkowski, Sarah ContactPerson 0000-0001-8745-4387 Department of Geosciences, University of Tübingen, Tübingen, Germany; Falkowski, Sarah DataCollector 0000-0001-8745-4387 Department of Geosciences, University of Tübingen, Tübingen, Germany; Ehlers, Todd ProjectLeader 0000-0001-9436-0303 Department of Geosciences, University of Tübingen, Tübingen, Germany; Madella, Andrea ProjectMember 0000-0001-8987-6612 Department of Geosciences, University of Tübingen, Tübingen, Germany; Glotzbach, Christoph DataCollector 0000-0003-4591-3025 Department of Geosciences, University of Tübingen, Tübingen, Germany; Georgieva, Viktoria DataCollector 0000-0003-3597-8175 Institute for Earth Sciences/Institute of Physics and Mathematics, Universidad Austral de Chile, Valdivia, Chile; Strecker, Manfred ProjectLeader 0000-0002-5952-0057 Institute of Geosciences, University of Potsdam, Potsdam, Germany; Falkowski, Sarah ContactPerson Department of Geosciences, University of Tübingen, Tübingen, Germany;
References	Andrić-Tomašević, N., Falkowski, S., Georgieva, V., Glotzbach, C., Strecker, M. R., & Ehlers, T. A. (2021). Supporting material for Quantifying tectonic and glacial controls on topography in the Patagonian Andes (46.5°S) from integrated thermochronometry and thermokinematic modeling [Data set]. GFZ Data Services. https://doi.org/10.5880/FIDGEO.2021.004 10.5880/fidgeo.2021.004 Cites Georgieva, V., Melnick, D., Schildgen, T. F., Ehlers, T. A., Lagabrielle, Y., Enkelmann, E., & Strecker, M. R. (2016). Tectonic control on rock uplift, exhumation, and topography above an oceanic ridge collision: Southern Patagonian Andes (47°S), Chile. Tectonics, 35(6), 1317–1341. Portico. https://doi.org/10.1002/2016tc004120 10.1002/2016TC004120 Cites Georgieva, V., Gallagher, K., Sobczyk, A., Sobel, E. R., Schildgen, T. F., Ehlers, T. A., & Strecker, M. R. (2019). Effects of slab-window, alkaline volcanism, and glaciation on thermochronometer cooling histories, Patagonian Andes. Earth and Planetary Science Letters, 511, 164–176. https://doi.org/10.1016/j.epsl.2019.01.030 10.1016/j.epsl.2019.01.030 Cites Glotzbach, C., Lang, K. A., Avdievitch, N. N., & Ehlers, T. A. (2019). Increasing the accuracy of (U-Th(-Sm))/He dating with 3D grain modelling. Chemical Geology, 506, 113–125. https://doi.org/10.1016/j.chemgeo.2018.12.032 10.1016/j.chemgeo.2018.12.032 Cites Harrison, S., Glasser, N., Winchester, V., Haresign, E., Warren, C., Duller, G. A. T., Bailey, R., Ivy-Ochs, S., Jansson, K., & Kubik, P. (2008). Glaciar León, Chilean Patagonia: late-Holocene chronology and geomorphology. The Holocene, 18(4), 643–652. https://doi.org/10.1177/0959683607086771 10.1177/0959683607086771 Cites Meesters, A. G. C. A., & Dunai, T. J. (2005). A noniterative solution of the (U‐Th)/He age equation. Geochemistry, Geophysics, Geosystems, 6(4). Portico. https://doi.org/10.1029/2004gc000834 10.1029/2004GC000834 Cites Stübner, K., Drost, K., Schoenberg, R., Böhme, M., Starke, J., & Ehlers, T. A. (2016). Asynchronous timing of extension and basin formation in the South Rhodope core complex, SW Bulgaria, and northern Greece. Tectonics, 35(1), 136–159. Portico. https://doi.org/10.1002/2015tc004044 10.1002/2015TC004044 Cites Wentworth, C. K. (1922). A Scale of Grade and Class Terms for Clastic Sediments. The Journal of Geology, 30(5), 377–392. https://doi.org/10.1086/622910 10.1086/622910 Cites Falkowski, S., Ehlers, T. A., Madella, A., Glotzbach, C., Georgieva, V., & Strecker, M. R. (2021). Glacial Catchment Erosion From Detrital Zircon (U‐Th)/He Thermochronology: Patagonian Andes. Journal of Geophysical Research: Earth Surface, 126(10). Portico. https://doi.org/10.1029/2021jf006141 10.1029/2021JF006141 IsSupplementTo
Contact	Falkowski, Sarah Department of Geosciences, University of Tübingen, Tübingen, Germany; Falkowski, Sarah Department of Geosciences, University of Tübingen, Tübingen, Germany;
Citation	Falkowski, S., Ehlers, T., Madella, A., Glotzbach, C., Georgieva, V., & Strecker, M. (2021). Detrital zircon (U-Th)/He thermochronometry data from the Leones Valley, Patagonian Andes [Data set]. GFZ Data Services. https://doi.org/10.5880/FIDGEO.2021.027
Geo location(s)	Leones catchment, Chile (sample locations)
Spatial coordinates	eLong -72.8634 nLat -46.571 sLat -46.8802 wLong -73.3235