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  3. Vesicularity, grain size, and grain shape of basaltic pyroclasts from Kīlauea and Mauna Loa volcanoes, Island of Hawaiʻi

Vesicularity, grain size, and grain shape of basaltic pyroclasts from Kīlauea and Mauna Loa volcanoes, Island of Hawaiʻi

Dates

Publication Date
Start Date
2023-03-01
End Date
2023-09-01

Citation

van Helden, K.M., Schmith, J., and Downs, D.T., 2024, Vesicularity, grain size, and grain shape of basaltic pyroclasts from Kīlauea and Mauna Loa volcanoes, Island of Hawaiʻi: U.S. Geological Survey data release, https://doi.org/10.5066/P144PUJA.

Summary

This dataset includes sample information, vesicularity by pycnometer, grain size and shape data by CAMSIZER, and measurements of crushed and thin section mounted grains by microscope. All studied samples were from scoria and air-fall-tephra deposits (most formed in Hawaiian lava fountains) collected around the summits of Mauna Loa and Kīlauea volcanoes, Island of Hawaiʻi. These data were used to derive methods for quickly being able to quantify vesicularity in near-real-time during an eruption response. The samples from Kīlauea all erupted from the summit area and include Keanakākoʻi units B, D, E, K1, and K2, the Halemaʻumaʻu eruptions in September 2021 and September 2023, and the Kīlauea Iki eruption that formed the Puʻupuaʻi scoria [...]

Contacts

Point of Contact :
Drew T Downs
Originator :
Kira M. van Helden, Johanne Schmith, Drew T Downs
Metadata Contact :
Drew T Downs, U.S. Geological Survey - Hawaiian Volcano Observatory
Publisher :
U.S. Geological Survey
Distributor :
U.S. Geological Survey - ScienceBase
SDC Data Owner :
Volcano Science Center
USGS Mission Area :
Natural Hazards

Attached Files

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Metadata.xml
“Metadata”
Original FGDC Metadata
View 		11.34 KB application/fgdc+xml
Vesicularity, grain size, and grain shape data.xlsx
“Data” 		207.84 KB application/vnd.openxmlformats-officedocument.spreadsheetml.sheet

Purpose

The data were collected as part of volcanic research to investigate new methods on measuring vesicularity in Hawaiian lava fountains from basaltic pyroclasts. These pyroclasts were collected from air-fall-tephra deposits from both Mauna Loa and Kīlauea volcanoes, Island of Hawaiʻi. Samples were used to quantitatively measure density and vesicularity by pycnometer, and then crushed to measure grain size and shape parameters by CAMSIZER. Both data sets were then analyzed to derive a quicker method of measuring vesicularity during eruption responses.

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Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P144PUJA

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