Core photos, Hole 2 (KMA-1), Humu‘ula Groundwater Research Project

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dc.contributor.authorThomas, Donald M.
dc.contributor.authorLautze, Nicole C.
dc.contributor.authorHaskins, Eric
dc.contributor.depositorKim, Alice
dc.date.accessioned2020-08-25T10:26:33Z
dc.date.available2020-08-25T10:26:33Z
dc.date.issued2016
dc.descriptionTo measure the extent of the regional table found by the first hole, we drilled a second test hole approximately 10 kilometers west of the PTA-2 borehole. Within the top ~1,500 meters the hole did not encounter the regional aquifer, but found a sequence of confined, pressurized aquifers from ~300 meters below the ground surface. Layers of soil, ash, or explosive eruptive deposits confined these aquifers as highly pressurized water trapped between impermeable layers. Hence, as we drilled into the aquifers, water came spouting from the point of entry to up the drill string to several hundred to several thousand feet.
dc.description.abstractAlso known as “PTA” or “Saddle Road Project,” the Humuʻula Groundwater Research Project (HGRP) aimed to research the groundwater resources in the Hawaiʻi Island ‘Saddle’ region between Mauna Loa and Mauna Kea volcanoes by drilling two test holes on Army Garrison Hawaii land. Results include the discovery of: i) groundwater at a much shallower depth than expected, ii) a dike-impounded aquifer, and iii) a potential geothermal reservoir. By using the diamond wireline core drilling technology, we collected a continuous sequence of rock core. We documented our progress in a blog and made a complete stratigraphic record of the region. This continuous stratigraphic sequence contained subaerial shield-stage and post-shield-stage lava rock and ash samples from the Mauna Kea Volcano, documenting the area’s environmental, geologic, hydrologic, and thermal history.
dc.description.sponsorshipThe U.S. Army funded the drilling, initial characterization of the core, and ongoing analyses of the fluid. Detailed logging of the core was supported by the National Science Foundation.
dc.format.extent538 pages
dc.identifier.urihttp://hdl.handle.net/10524/63516
dc.language.isoen-US
dc.publisherUniversity of Hawaii at Manoa
dc.publisherHawaii Groundwater and Geothermal Resources Center
dc.publisherHumu‘ula Groundwater Research Project
dc.relation.urihttps://www.higp.hawaii.edu/hggrc/
dc.rightsCC0 1.0 Universal*
dc.rights.urihttp://creativecommons.org/publicdomain/zero/1.0/*
dc.subjectcore logging
dc.subjectcore samples
dc.subjectHawaii--Mauna Kea
dc.subjectHawaii--Mauna Loa (Hawaii Island)
dc.subjectHumuʻula Groundwater Research Project
dc.subjectdrill cores
dc.subjectwell logging
dc.subjectWater Table
dc.subjectGroundwater
dc.subjectGroundwater flow
dc.subject.lcshDrill cores -- Hawaii -- Mauna Kea
dc.subject.lcshDrill cores -- Hawaii -- Mauna Loa
dc.subject.lcshVolcanism -- Hawaii -- Mauna Kea
dc.subject.lcshVolcanism -- Hawaii -- Mauna Loa
dc.subject.lcshHawaii -- Mauna Kea
dc.subject.lcshHawaii -- Mauna Loa
dc.titleCore photos, Hole 2 (KMA-1), Humu‘ula Groundwater Research Project
dc.typeDataset
dc.typeImage
dc.type.dcmiDataset

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