{"dp_type": "Dataset", "free_text": "Argon-Argon Dates"}
[{"awards": "1745015 Zimmerer, Matthew", "bounds_geometry": ["POLYGON((-127.10701 -77.161919,-127.0824042 -77.161919,-127.0577984 -77.161919,-127.0331926 -77.161919,-127.0085868 -77.161919,-126.983981 -77.161919,-126.9593752 -77.161919,-126.9347694 -77.161919,-126.9101636 -77.161919,-126.8855578 -77.161919,-126.860952 -77.161919,-126.860952 -77.1703043,-126.860952 -77.1786896,-126.860952 -77.1870749,-126.860952 -77.1954602,-126.860952 -77.2038455,-126.860952 -77.2122308,-126.860952 -77.2206161,-126.860952 -77.2290014,-126.860952 -77.2373867,-126.860952 -77.245772,-126.8855578 -77.245772,-126.9101636 -77.245772,-126.9347694 -77.245772,-126.9593752 -77.245772,-126.983981 -77.245772,-127.0085868 -77.245772,-127.0331926 -77.245772,-127.0577984 -77.245772,-127.0824042 -77.245772,-127.10701 -77.245772,-127.10701 -77.2373867,-127.10701 -77.2290014,-127.10701 -77.2206161,-127.10701 -77.2122308,-127.10701 -77.2038455,-127.10701 -77.1954602,-127.10701 -77.1870749,-127.10701 -77.1786896,-127.10701 -77.1703043,-127.10701 -77.161919))"], "date_created": "Mon, 25 Aug 2025 00:00:00 GMT", "description": "This dataset includes data for the Ar/Ar analyses of samples collected during the 2018-2019 field season at Mt. Waesche. All analyses were conducted in the New Mexico Geochronology Research Laboratory at the New Mexico Bureau of Geology and Mineral Resources. Samples dated are from lava flows and eruptive centers on the southern flank of the volcano. Material dated includes groundmass concentrate, anorthoclase, and plagioclase. A total of 133 ages, ranging from 94.6 \u00b1 12.1 to 425.9 \u00b1 4.8 ka, were generated as part of the project. This data set includes raw isotope values, corrected isotope values (for blank and baseline measurements, decay, and detector intercalibration), calculated ratios, standards and reference gases values, and monitor information. Additional information related to age calculations, sample preparation, irradiation, instrumentation, and analytical parameters is also provided.", "east": -126.860952, "geometry": ["POINT(-126.983981 -77.2038455)"], "keywords": "Antarctica; Argon-Argon Dates; Argon Isotopes; Cryosphere; Executive Committee Range; Geochronology; Glaciers/ice Sheet; Glaciers/Ice Sheet; Marie Byrd Land; Mount Waesche; Volcano; West Antarctic", "locations": "Mount Waesche; Executive Committee Range; Antarctica; Marie Byrd Land; West Antarctic", "north": -77.161919, "nsf_funding_programs": "Antarctic Earth Sciences", "persons": "Zimmerer, Matthew; Dunbar, Nelia; McIntosh, William C; Iverson, Nels", "project_titles": "Collaborative Research: Constraining West Antarctic Ice Sheet elevation during the last interglacial", "projects": [{"proj_uid": "p0010272", "repository": "USAP-DC", "title": "Collaborative Research: Constraining West Antarctic Ice Sheet elevation during the last interglacial"}], "repo": "USAP-DC", "repositories": "USAP-DC", "science_programs": null, "south": -77.245772, "title": "Ar/Ar data for samples collected during the 2018-2019 Mt. Waesche field season.", "uid": "601974", "west": -127.10701}]
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| Dataset Title/Abstract/Map | NSF Award(s) | Date Created | PIs / Scientists | Project Links | Abstract | Bounds Geometry | Geometry | Selected | Visible |
|---|---|---|---|---|---|---|---|---|---|
|
Ar/Ar data for samples collected during the 2018-2019 Mt. Waesche field season.
|
1745015 |
2025-08-25 | Zimmerer, Matthew; Dunbar, Nelia; McIntosh, William C; Iverson, Nels |
Collaborative Research: Constraining West Antarctic Ice Sheet elevation during the last interglacial |
This dataset includes data for the Ar/Ar analyses of samples collected during the 2018-2019 field season at Mt. Waesche. All analyses were conducted in the New Mexico Geochronology Research Laboratory at the New Mexico Bureau of Geology and Mineral Resources. Samples dated are from lava flows and eruptive centers on the southern flank of the volcano. Material dated includes groundmass concentrate, anorthoclase, and plagioclase. A total of 133 ages, ranging from 94.6 ± 12.1 to 425.9 ± 4.8 ka, were generated as part of the project. This data set includes raw isotope values, corrected isotope values (for blank and baseline measurements, decay, and detector intercalibration), calculated ratios, standards and reference gases values, and monitor information. Additional information related to age calculations, sample preparation, irradiation, instrumentation, and analytical parameters is also provided. | ["POLYGON((-127.10701 -77.161919,-127.0824042 -77.161919,-127.0577984 -77.161919,-127.0331926 -77.161919,-127.0085868 -77.161919,-126.983981 -77.161919,-126.9593752 -77.161919,-126.9347694 -77.161919,-126.9101636 -77.161919,-126.8855578 -77.161919,-126.860952 -77.161919,-126.860952 -77.1703043,-126.860952 -77.1786896,-126.860952 -77.1870749,-126.860952 -77.1954602,-126.860952 -77.2038455,-126.860952 -77.2122308,-126.860952 -77.2206161,-126.860952 -77.2290014,-126.860952 -77.2373867,-126.860952 -77.245772,-126.8855578 -77.245772,-126.9101636 -77.245772,-126.9347694 -77.245772,-126.9593752 -77.245772,-126.983981 -77.245772,-127.0085868 -77.245772,-127.0331926 -77.245772,-127.0577984 -77.245772,-127.0824042 -77.245772,-127.10701 -77.245772,-127.10701 -77.2373867,-127.10701 -77.2290014,-127.10701 -77.2206161,-127.10701 -77.2122308,-127.10701 -77.2038455,-127.10701 -77.1954602,-127.10701 -77.1870749,-127.10701 -77.1786896,-127.10701 -77.1703043,-127.10701 -77.161919))"] | ["POINT(-126.983981 -77.2038455)"] | false | false |
