Home > Diamond Head, Hawaii
Diamond Head is the name of a tuff cone on the Hawaiian island of O'ahu and known to Hawaiians as Leahi (photograph at right). Its EnglishThe English language is a West Germanic language, originating from England. It is the third most common "first" language (native speakers), with around 402 million people in 2002. English has lingua franca status in many parts of the world, due to the mil name was given by BritishThe United Kingdom of Great Britain and Northern Ireland is a state in Western Europe, usually known simply as the United Kingdom the UK Britain or less accurately as Great Britain . The UK was formed by a series of Acts of Union which united the formerly sailors in the 19th centuryAlternative meaning: Nineteenth Century (periodical ( 18th century — 19th century — 20th century — more centuries) As a means of recording the passage of time, the 19th century was that century which lasted from 1801- 1900. Events The Little Ice Age ended, who mistook calciteThe mineral calcite is a carbonate of calcium corresponding to the formula CaCO and is one of the most widely distributed minerals on the Earth's surface. It is a common constituent of sedimentary rocks, limestone in particular. It also occurs as a vein m crystals embedded in the rock for diamondAlternate meanings: Diamond (disambiguation Diamond is one of the natural allotropes of carbon (the main allotrope being graphite; see also allotropes of carbon). The hardest of naturally occurring materials, diamonds cut into multi-faceted shapes are amos.
1 Geology
Diamond Head is part of the complex of cones, vents, and their associated flows that are collectively known to geologists as the Honolulu Volcanics, which are part of the much larger Koolau Volcano (known to most people as the Koolau Range). The Honolulu Volcanics is a series of volcanics that created many of Oahu’s well-known landmarks, including Punchbowl, Hanauma Bay, Koko Head, and Manana Island in addition to Diamond Head. Diamond Head, like the rest of the Honolulu Volcanics, are much younger than the main mass of the Koolau Mountain Range. While the Koolau Range is about 2.6 million years old, Diamond Head is estimated to be about 200,000 years old.
The eruption that built up Diamond Head was probably very brief, lasting no more than a few days. It was probably explosive, since when the cone was originally formed, the sea level is thought to have been higher and the vent burst erupted over a coral reef. Another factor probably contributing to the eruption’s explosive nature was that rising magmaThis article is about the type of rock. For magmas in mathematics, see Magma (algebra). For the experimental jazz band, see Magma (band). For the computer algebra system, see Magma computer algebra system. For the EDA software company, see Magma Design Au would have come into contact with the water table. The eruption’s relatively brief length is thought to explain why the cone today is so symmetrical.
A nearby eruption that took place at about the same time (probably after) as the Diamond Head eruption was the eruption that built the Black Point lava shield.
Since the type of eruptions that built Diamond Head tend to be a one-time-only event, geologists don’t believe Diamond Head will erupt again.
