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Kauai GENERALIZED GEOLOGY OF THE HAWAIIAN ISLANDS Haena Kalihiwai Hanalei
Moloaa
Kalalau
Anahola
Kapaa
Wailua
22°N Hanamaulu 22°N LIHUE
Waimea Nawiliwili
Hanapepe
Makahuena Pt. Niihau Oahu Hawaii 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. Pearl Harbor HONOLULU Barbers Pt. Molokai Diamond Head Koko Head
Ilio Pt.
Kalaupapa Pelekunu Halawa Bay
Laau Pt. KAUNAKAKAI Waialua
Pukoo
Honokohau Kamalo Honolua 21°N Kahakuloa Maui 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 Caldera Boundary Rift zone (approximately located) Kahoolawe
NIIHAU EXPLANATION
Holocene and Pleistocene Upolu Point Sedimentary deposits Hawaii Pleistocene and Pliocene Kiekie Basalt
Honokaa Pliocene and Miocene Paniau Basalt Paauilo Kawaihae Ookala 20°N Laupahoehoe 20°N KAUAI EXPLANATION MOLOKAI EXPLANATION Holocene Sedimentary deposits Kiholo Bay Holocene and Pleistocene Mauna Kea Pleistocene and Pliocene Sedimentary deposits
Koloa Volcanics HILO Pleistocene Palikea Breccia Member Kalaupapa Volcanics HAWAII EXPLANATION Pliocene and Miocene Pleistocene and Pliocene West Molokai Volcanics Kailua Waimea Canyon Basalt Holocene and Pleistocene
Kau Basalt (Mauna Loa) 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 LANAI 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 Volcano 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 Honolulu Volcanics 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 Trachyte 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 lava, 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.