Geologic map and guide of the island of Oahu, Hawaii, with a chapter on mineral resources

Abstract

"This road guide has been prepared to meet the constant demand for more knowledge about the geology of Oahu and should greatly increase the usefulness of the geologic map. Many kinds of geologic phenomena are found on the island: dissected as well as recent volcanic craters and fissures from which lava and ash were erupted, landslides and fossiliferous volcanic mud flows, spectacular features of marine, stream, and wind erosion, conspicuous evidences of great submergence and emergence, coral reefs, stream and marine terraces, deltas, fans, tropical rain belts and deserts with their associated contrasting types of weathering and erosion. This concentration of so many diverse geologic features in such a small area makes Oahu outstanding among the islands of the world. This verdurecovered island surrounded by a blue sea is an ideal place to become acquainted with earth processes and products. Moreover, many of these geologic features are readily reached by automobile. The logs given on the following pages have been made for an autoist travelling the main highways around the island starting at the Kamehameha statue on King Street, Honolulu (pl. 1). It is assumed that the traveler will have available the street map of Honolulu issued free by the Hawaii Tourist Bureau. The mileage reads up if driving clockwise around the island and down if going counterclockwise. The route from Haleiwa to Wahiawa is over the new highway not shown on plate 2. Likewise, the route to Waianae is over the new Waipahu cut-off, although this road is not shown on plate 2. The mileage varies slightly with different odometers due to many factors, but a sufficient number of landmarks are given so that frequent checks can be made. A few of the main side roads having interesting geologic exposures are also included (pl. 1)."