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Kauai GENERALIZED GEOLOGY OF THE Haena Kalihiwai Hanalei

Moloaa

Kalalau

Anahola

Kapaa

Wailua

22°N Hanamaulu 22°N LIHUE

Waimea Nawiliwili

Hanapepe

Makahuena Pt. Geological Survey Kahuku Pt.

Waimea Laie

Hauula Waialua Kaena Pt. Kahana

Makua

Mokapu Pt. Makaha

Waianae Kaneohe

Kailua Nanakuli 10 0 10 miles

Waimanalo

Makapuu Pt. Barbers Pt. Diamond Head

Ilio Pt.

Kalaupapa Pelekunu Halawa

Laau Pt. KAUNAKAKAI Waialua

Pukoo

Honokohau Kamalo Honolua 21°N Kahakuloa 21°N

Waihee Kanaele Kaanapali Paia Waipio Bay

Kaena Pt. Maunalei WAILUKU Kahului Lahaina Wailua Keomuku

Halepalaoa Honopu Bay Landing Olowalu

Kaumalapau Harbor Kihei Hana

Kamaole Manele Bay Palaoa Pt.

Makena Kipahulu

Lanai Kaupo

Approximate Boundary zone (approximately located)

NIIHAU EXPLANATION

Holocene and Upolu Point Sedimentary deposits Hawaii Pleistocene and Pliocene Kiekie

Honokaa Pliocene and Paniau Basalt Paauilo Kawaihae Ookala 20°N Laupahoehoe 20°N EXPLANATION MOLOKAI EXPLANATION Sedimentary deposits Kiholo Bay Holocene and Pleistocene Pleistocene and Pliocene Sedimentary deposits

Koloa Volcanics HILO Pleistocene Palikea Member Kalaupapa Volcanics HAWAII EXPLANATION Pliocene and Miocene Pleistocene and Pliocene West Molokai Volcanics Kailua Waimea Canyon Basalt Holocene and Pleistocene

Kau Basalt () Keauhou East Molokai Volcanics Cape Makaweli Member Kumukahi Upper Member MAUI EXPLANATION Hualalai Volcanics (Hualalai) Mauna Olokele Member Loa Lower Member Laupahoehoe Volcanics (Mauna Kea) Holocene and Pleistocene Honaunau Haupu Member Sedimentary deposits Puna Basalt (Kilauea) Hookena Napali Member EXPLANATION Hana Volcanics Kalapana Holocene Holocene and Pleistocene Kipahulu Member Historical basalt flow (Kilauea, Mauna Loa, Original Geological Mapping OAHU EXPLANATION Sedimentary deposits Hualalai) Various Bulletins published by the Hawaii Division of Hydrography Pleistocene Hoopuloa Holocene and Pleistocene Pleistocene Pleistocene Oahu: Sedimentary deposits Lanai Basalt West Maui Hilina Basalt (Kilauea) Stearns, H. T. and K. Vaksvik (1935, Bull. 1) Stearns, H. T. (1939, 1940, Bull. 2 & 5) Punaluu

Lanai and Kahoolawe: Honuapo Lahaina Volcanics Kahuku Basalt (Mauna Loa) KAHOOLAWE EXPLANATION Stearns, H. T. (1940, Bull. 6) Maui: Pliocene Honolua Volcanics Ninole Basalt (Mauna Loa) Stearns, H. T. and G. A. Macdonald (1942, Bull. 7) 19°N Koolau Basalt Holocene Hawaii: 19°N Sedimentary deposits Wailuku Basalt Hamakua Volcanics (Mauna Kea) Stearns, H. T. and G. A. Macdonald (1946, Bull. 9) Kaalualu Molokai: Waianae Volcanics Stearns, H. T. and G. A. Macdonald (1947, Bull. 11) Kolekole Member Holocene or Pleistocene East Maui (Haleakala) Volcano Waawaa Member Niihau: Ka Lae Volcanic rocks (rejuvenated-stage vents) Stearns, H. T. (1947, Bull. 12) Palehua Member Kula Volcanics Hawi Volcanics Kauai: Pleistocene (caldera-filling , stippled) Macdonald, G. A., Davis, D. A. and D. C. Cox (1960, Bull. 13) Kamaileunu and Lualualei Members Kanapou Volcanics Honomanu Basalt Pololu Basalt

Formation nomenclature from: Langenheim, V. and Clague, D., 1987, USGS Prof. Paper 1350, Vol. 1

160°W 159°W 158°W 157°W 156°W 155°W Generalized Geology of the Hawaiian Islands

Due to the numerous requests for geologic maps of the Hawaiian Islands that are long out-of-print, the Hawaii Geological Survey compiled the Generalized Geology of the Hawaiian Islands map that can be viewed in PDF format. This map represents a compendium of the geological mapping as presented in the out-of-print bulletins published by the Hawaii Division of Hydrography from the 1935 to 1960. The rock unit nomenclature was later revised and updated to conform to the North American Stratigraphic Code (1983).

The revision of the units as shown in the Generalized Geology of the Hawaiian Islands map was done by:

Langenheim, V. A. M. and D. A. Clague, 1987, The Hawaiian-Emperior Volcanic Chain Part II: Stratigraphic Framework of the Volcanic Rocks of the Hawaiian Islands, U. S. Geological Survey Prof. Paper 1350, Vol. 1, pp. 55-84.