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National Geologic Map Database

Geologic Unit: Castle

Usage:

Castle flow (informal) of Honolulu Volcanics (HI)

Informal. The rank or lithologic term should not be capitalized.


Geologic age:

Quaternary (Pleistocene)


Type section, locality, area and/or origin of name:

[Type locality not designated.] Named for occurrence at cinder cone on Castle Ranch, 3 mi west of Kailua and 0.25 mi north of Ulumawao (summit), [Kaneohe 7.5-min quadrangle, Honolulu Co.], Island of Oahu, HI (Stearns, IN Stearns and Vaksvik, 1935).


AAPG geologic province:

Oahu


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 ([ ]).