- Usage in publication:
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- Ninole basalt*
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- Named
- Dominant lithology:
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- Basalt
- AAPG geologic province:
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- Hawaii
Summary:
Named "Ninole basalt, the oldest formation exposed in the district" [Kau district, slope of Mauna Loa Volcano, Island of Hawaii]. Underlies with erosional unconformity Pahala basalt [ash] and Kamehame basalt which lies above Pahala basalt. Tentatively assigned Tertiary(?) age based on stratigraphic relations.
Source: GNU records (USGS DDS-6; Menlo GNULEX).
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- Ninole basalt*
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- Areal extent
- AAPG geologic province:
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- Hawaii
Summary:
Type section is exposed on walls of Ninole Valley at Puu Enuhe [19 deg 10' 46"N, 155 deg 32' 22"W, Punaluu 7.5' quad, slope of Mauna Loa Volcano, Island of Hawaii, HI]. Consists of 1000 ft of basalt with 12-foot bed of volcanic ash 500 ft below top at type section. Lava beds (up to 75 ft thick) are predominantly massive, gray, and interstratified with massive beds of pahoehoe and few beds of aa. Occurs for distance of 15 mi between Wood Valley and Waiohinu. Has exposed thickness of 2100 ft at Makaalia Peak at head of Hilea Valley. Base not exposed. Overlain with erosional unconformity by Kahuku and Kau volcanic series (both new). Assigned Tertiary or older age on chart.
Source: GNU records (USGS DDS-6; Menlo GNULEX).
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- Ninole formation
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- Redescribed
- AAPG geologic province:
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- Hawaii
Summary:
Ash bed at type section of Ninole formation (Ninole basalt of Stearns, 1926; Stearns and Clark, 1930) is also called "Ninole tuff". Consists of fine-grained, dark red palagonitic material.
Source: GNU records (USGS DDS-6; Menlo GNULEX).
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- Ninole volcanic series*
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- Age modified
- Revised
- AAPG geologic province:
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- Hawaii
Summary:
Ninole basalt now called Ninole volcanic series. Ninole tuff (of Wentworth, 1938) is included in series. Underlies with erosional unconformity Kahuku volcanic series (formerly lower member of Pahala basalt). Assigned Pliocene age in chart [no basis given]
Source: GNU records (USGS DDS-6; Menlo GNULEX).
- Usage in publication:
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- Ninole volcanic series*
- Modifications:
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- Age modified
- AAPG geologic province:
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- Hawaii
Summary:
"... appears to form an ancient shield-shaped volcanic dome ... under Mauna Loa." Map explanation describes as basaltic lava flows with interbedded tuff bed and basaltic lava flows covered with Pahala ash. Assigned Pliocene(?) or older on basis of correlation with Pololu volcanic series [p.60-61], although map shows Pliocene age.
Source: GNU records (USGS DDS-6; Menlo GNULEX).
- Usage in publication:
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- Ninole volcanic series*
- Modifications:
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- Age modified
- AAPG geologic province:
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- Hawaii
Summary:
Type locality: Ninole Gulch, north of Hilea in Kau district, Island of Hawaii, HI. No fossils. "Older than Kahuku volcanic series of Pleistocene age by an interval long enough for streams to cut canyons 4,000 feet deep." p.120. Assigned Pliocene(?) age.
Source: GNU records (USGS DDS-6; Menlo GNULEX).
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- Ninole volcanic series*
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- Geochronologic dating
- AAPG geologic province:
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- Hawaii
Summary:
K-Ar ages on samples from "Ninole flows" indicate 0.07 and 0.53 Ma.
Source: GNU records (USGS DDS-6; Menlo GNULEX).
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- Ninole volcanic series*
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- Paleomagnetics
- AAPG geologic province:
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- Hawaii
Summary:
"All lavas now exposed on [island of] Hawaii are probably younger than early Pleistocene because their directions of magnetization are all normal..." 25 flows were sampled from northeast and southwest sides of Kaiholeua Ridge.
Source: GNU records (USGS DDS-6; Menlo GNULEX).
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- Ninole Volcanics*
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- Revised
- AAPG geologic province:
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- Hawaii
Summary:
Ninole Volcanic Series of Stearns (1946) reduced in rank and renamed "Ninole Volcanics". Recent studies indicate unit may be deeper parts of Mauna Loa shield that have been uplifted along normal faults. 'Both published K-Ar ages (Evernden and others, 1964) and recent unpublished determinations (G.B. Dalrymple, written commun., 1980) on the Ninole Volcanics are on the order of a few hundred thousand years."
Source: GNU records (USGS DDS-6; Menlo GNULEX).
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- Ninole Basalt*
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- Reinstated
- AAPG geologic province:
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- Hawaii
Summary:
Original name reinstated since Ninole is shield-stage lava of tholeiitic basalt, olivine tholeiitic basalt, and picritic tholeiitic basalt with only minor pyroclastic deposit near top. Maximum exposed thickness is approx. 600 m. Base is not exposed. Age is considered to be no more than few hundred thousand years. (Single published K-Ar age of 0.54 Ma has estimated uncertainty of 0.4 m.y. (see Clague and Dalrymple, Ch I, Pt.1 of this volume). Assigned Pleistocene age.
Source: GNU records (USGS DDS-6; Menlo GNULEX).
For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.
Asterisk (*) indicates published by U.S. Geological Survey authors.
"No current usage" (†) implies that a name has been abandoned or has fallen into disuse. Former usage and, if known, replacement name given in parentheses ( ).
Slash (/) indicates name conflicts with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). May be explained within brackets ([ ]).