[{"awards": "1935945 Tremblay, Marissa", "bounds_geometry": ["POLYGON((160 -77,160.3 -77,160.6 -77,160.9 -77,161.2 -77,161.5 -77,161.8 -77,162.1 -77,162.4 -77,162.7 -77,163 -77,163 -77.1,163 -77.2,163 -77.3,163 -77.4,163 -77.5,163 -77.6,163 -77.7,163 -77.8,163 -77.9,163 -78,162.7 -78,162.4 -78,162.1 -78,161.8 -78,161.5 -78,161.2 -78,160.9 -78,160.6 -78,160.3 -78,160 -78,160 -77.9,160 -77.8,160 -77.7,160 -77.6,160 -77.5,160 -77.4,160 -77.3,160 -77.2,160 -77.1,160 -77))"], "date_created": "Mon, 01 Dec 2025 00:00:00 GMT", "description": "This dataset contains (1) metadata about bedrock samples in the McMurdo Dry Valleys collected during a 2022 field season, (2) concentrations of cosmogenic radionuclides (Be-10 and Al-26) in quartz from these bedrock samples, and (3) concentrations of helium isotopes (He-3 and He-4) in quartz from these bedrock samples. All cosmogenic nuclide measurements took place at Purdue University.", "east": 163.0, "geometry": ["POINT(161.5 -77.5)"], "keywords": "Aluminum-26; Antarctica; Bedrock; Beryllium-10; Cosmogenic Isotopes; Cosmogenic Radionuclides; Cryosphere; Helium Isotopes; McMurdo Dry Valleys", "locations": "McMurdo Dry Valleys; Antarctica", "north": -77.0, "nsf_funding_programs": "Antarctic Earth Sciences", "persons": "Tremblay, Marissa; Granger, Darryl", "project_titles": "Collaborative \r\nResearch: Reconstructing Temperatures during the Mid-Pliocene Warm \r\nPeriod in the McMurdo Dry Valleys with Cosmogenic Noble Gases", "projects": [{"proj_uid": "p0010123", "repository": "USAP-DC", "title": "Collaborative \r\nResearch: Reconstructing Temperatures during the Mid-Pliocene Warm \r\nPeriod in the McMurdo Dry Valleys with Cosmogenic Noble Gases"}], "repo": "USAP-DC", "repositories": "USAP-DC", "science_programs": null, "south": -78.0, "title": "Bedrock cosmogenic radionuclide and noble gas measurements from the McMurdo Dry Valleys", "uid": "601998", "west": 160.0}, {"awards": "0126057 Brook, Edward J.", "bounds_geometry": ["POINT(-38.466667 72.5833333)"], "date_created": "Tue, 16 Dec 2008 00:00:00 GMT", "description": "Ice Core Interplanetary Dust Helium Isotope Data Helium isotope data from Ice Cores at GISP2 (Greenland) and Vostok (Antarctica) as a proxy for extraterrestrial dust flux.\n", "east": -38.466667, "geometry": ["POINT(-38.466667 72.5833333)"], "keywords": "Antarctica; Arctic; Atmosphere; Chemistry:fluid; Chemistry:Fluid; Geochemistry; GISP2; Glaciers/ice Sheet; Glaciers/Ice Sheet; Ice Core Records; Isotope; Lake Vostok; Paleoclimate; Vostok Ice Core", "locations": "Antarctica; Lake Vostok; Arctic", "north": 72.5833333, "nsf_funding_programs": "Antarctic Glaciology", "persons": "Brook, Edward J.; Kurz, Mark D.", "project_titles": "High Resolution Records of Atmospheric Methane in Ice Cores and Implications for Late Quaternary Climate Change", "projects": [{"proj_uid": "p0000034", "repository": "USAP-DC", "title": "High Resolution Records of Atmospheric Methane in Ice Cores and Implications for Late Quaternary Climate Change"}], "repo": "USAP-DC", "repositories": "USAP-DC", "science_programs": null, "south": 72.5833333, "title": "GISP2 (D Core) Helium Isotopes from Interplanetary Dust", "uid": "609361", "west": -38.466667}]

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Dataset Title/Abstract/Map	NSF Award(s)	Date Created	PIs / Scientists	Project Links	Abstract	Bounds Geometry	Geometry	Selected	Visible
Bedrock cosmogenic radionuclide and noble gas measurements from the McMurdo Dry Valleys	1935945	2025-12-01	Tremblay, Marissa; Granger, Darryl	Collaborative Research: Reconstructing Temperatures during the Mid-Pliocene Warm Period in the McMurdo Dry Valleys with Cosmogenic Noble Gases	This dataset contains (1) metadata about bedrock samples in the McMurdo Dry Valleys collected during a 2022 field season, (2) concentrations of cosmogenic radionuclides (Be-10 and Al-26) in quartz from these bedrock samples, and (3) concentrations of helium isotopes (He-3 and He-4) in quartz from these bedrock samples. All cosmogenic nuclide measurements took place at Purdue University.	["POLYGON((160 -77,160.3 -77,160.6 -77,160.9 -77,161.2 -77,161.5 -77,161.8 -77,162.1 -77,162.4 -77,162.7 -77,163 -77,163 -77.1,163 -77.2,163 -77.3,163 -77.4,163 -77.5,163 -77.6,163 -77.7,163 -77.8,163 -77.9,163 -78,162.7 -78,162.4 -78,162.1 -78,161.8 -78,161.5 -78,161.2 -78,160.9 -78,160.6 -78,160.3 -78,160 -78,160 -77.9,160 -77.8,160 -77.7,160 -77.6,160 -77.5,160 -77.4,160 -77.3,160 -77.2,160 -77.1,160 -77))"]	["POINT(161.5 -77.5)"]	false	false
GISP2 (D Core) Helium Isotopes from Interplanetary Dust	0126057	2008-12-16	Brook, Edward J.; Kurz, Mark D.	High Resolution Records of Atmospheric Methane in Ice Cores and Implications for Late Quaternary Climate Change	Ice Core Interplanetary Dust Helium Isotope Data Helium isotope data from Ice Cores at GISP2 (Greenland) and Vostok (Antarctica) as a proxy for extraterrestrial dust flux.	["POINT(-38.466667 72.5833333)"]	["POINT(-38.466667 72.5833333)"]	false	false

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U.S. ANTARCTIC PROGRAM DATA CENTER

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