{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Kendra J Lynn", "hasEmail": "mailto:klynn@usgs.gov"}, "description": "The September 2023 Halema\u2018uma\u2018u eruption began on September 10 and ended on September 16 (~1 week; Mulliken et al. 2024). Field crews from the U.S. Geological Survey\u2019s Hawaiian Volcano Observatory collected tephra samples from fissures that had opened up on an area of the caldera floor east of Halema\u2018uma\u2018u crater (see Lynn et al. 2024 for map). Air quenched spatter and tephra samples were collected from eight of the fissures that were accessible from the down-dropped block of the old caldera floor to the northeast of the active lake surface. Samples were collected from within a publicly closed area of Hawai\u2018i Volcanoes National Park in cooperation with the National Park Service. This data release provides olivine core and rim spot analyses from electron microprobe analytical work. The analyses were done on olivine crystals 0.5-2.0 mm in size picked from tephra samples (see Lynn et al. 2024 for additional sample and compositional information).", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/P13HD3LX", "description": "Landing page for access to the data", "format": "XML", "mediaType": "application/http", "title": "Digital Data"}, {"@type": "dcat:Distribution", "description": "The metadata original format", "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.68950163d4be0274c894cf84.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_68950163d4be0274c894cf84", "keyword": ["Island of Hawai\u2018i", "Kaluapele", "Kilauea", "September 2023 eruption", "USGS:68950163d4be0274c894cf84", "biota", "forsterite", "olivine", "tephra"], "modified": "2025-09-19T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-155.29535, 19.39229, -155.25570, 19.43211", "theme": ["geospatial"], "title": "Olivine core and rim electron microprobe analyses for the September 2023 Halema\u2018uma\u2018u eruption of K\u012blauea, Island of Hawai\u02bbi"}