Usage:
No current usage.
(†Hopukani Volcanic Member of Hamakua Volcanics (HI) replaced with Hopukani Springs Volcanic Member. See Hopukani Springs.)
Geologic age:
Quaternary (Pleistocene)
Type section, locality, area and/or origin of name:
Type section (=type section of Hamakua volcanic series of Stearns and Macdonald, 1946): south wall of Laupahoehoe gulch [Lat. 19 deg. 58 min. 49 sec. N., Long. 155 deg. 14 min. 39 sec. W., Papaaloa 7.5-min quadrangle, Mauna Kea Volcano, Island of Hawaii, HI] (Porter, 1979).
Reference section: west wall of Pohakuloa Gulch where channel floor reaches 2,935 m [approx. 9,629 feet] elevation, east of Waihu Spring, [approx. Lat. 19 deg. 46 min. 45 sec. N., Long. 155 deg. 30 min. 15 sec. W., Ahumoa 7.5-min quadrangle, Mauna Kea Forest Reserve, south slope of Mauna Kea Volcano, Hawaii Co., Island of Hawaii, HI] (Wentworth and Powers, 1941, p. 1210; Porter, 1979).
AAPG geologic province:
Hawaii
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 ([ ]).