Keanakākoʻi Tephra unit D, Kīlauea Volcano, Hawaii: sample details, grain size, and grain shape data for 100 tephra samples

A total of 100 samples were collected from two proximal sections of Keanakākoʻi, Tephra unit D deposits. Samples were analyzed on Microtrac CAMSIZER® P4 and X2 instruments for grain size and shape data in the USGS Hawaiian Volcano Observatory (HVO) tephra lab. Data release includes sample descriptions, half phi grain size distributions, and statistical output from DECOLOG deconvolution modeling of grain size distributions. Grain size is reported using the sieve compatible Xcmin parameter (CAMSIZER® manual, 2020). Data of 2D shape parameter means of sphericity, Krumbein roundness and compactness of samples as well as for half phi grain size bins at 4, 3, 2, 1, 0, and -1 phi are also included. Please refer to associated...

Categories: Data; Tags: Camsizer, Grain shape, Grain size, Hawaii Volcanoes National Park, Kīlauea Volcano, All tags... Kīlauea summit, Magma-water interaction, Phreatomagmatic, Sample information, Shape parameter, Tephra, Tephra deposit, USGS Science Data Catalog (SDC), Volcanic ash, Volcanic ash, Volcanology, geoscientificInformation, grain-size analysis, volcanic rocks, volcanology, Fewer tags