Breccias and conglomerates that formed pit before or during eruption of Koloa volcanic series and deposit at foot of steep slopes are called Palikea formation. Unit later buried by Koloa volcanic series. Figure map indicates Pleistocene age.

Source: GNU records (USGS DDS-6; Menlo GNULEX).

Named for type locality on Palikea ridge, 3.2 mi S 20 deg E of Kawaikini peak [22 deg 00' 42"N, 159 deg 27' 27"W, Waialeale 7.5' quad], on eastern side Island of Kauai, HI. Is 700 ft thick at type, elsewhere not over 200 ft. Crops out as narrow bands along edge of central massif of Kauai over eastern 2/3's of island. Composed of sedimentary breccias and conglomerates (derived from Waimea Canyon volcanic and Koloa volcanic series) directly underlying or interbedded with Koloa volcanic series. In some areas underlies Quaternary alluvium. Stratigraphic chart assigns Pleistocene age. Text and map show same age as Koloa volcanic series.

Source: GNU records (USGS DDS-6; Menlo GNULEX).

Palikea Formation of Macdonald, Davis and Cox (1960) is reduced in rank and renamed Palikea Breccia Member of Koloa Volcanics. Age not known but probably Pliocene(?) and Pleistocene(?) based on stratigraphic relations with Koloa lava flows.

Source: GNU records (USGS DDS-6; Menlo GNULEX).