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Āliamanu Crater
Āliamanu Crater, also known as Leilono Crater or North Crater, is a volcanic Volcanic cone, tuff cone in the Salt Lake, Hawaii, Salt Lake neighborhood of Honolulu, Hawaii. It has an elevation of 760 feet, towering the nearby Āliapa‘akai Crater, Āliapa‘akai and Makalapa Crater, Makalapa craters. History The first geological description of Aliamanu was done by 19th century geologist James Dwight Dana. In the early 20th century, the US military constructed a military base within the crater now known as the Aliamanu Military Reserve. The area was also used for underground ammunition storage. Geology Āliamanu was one of the many tuff craters formed during the Honolulu Volcanic Series, Honolulu Volcanics, a series of eruptions in southeastern Oahu. Legends The Ancient hawaiians believed the upper rim of Aliamanu crater to be the location of Leilono, a site said to contain the entrance to the otherworld (Pō). Legends also record the Hawaiian goddesses Pele (deity), Pe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volcanic Cone
Volcanic cones are among the simplest volcanic landforms. They are built by ejecta from a volcanic vent, piling up around the vent in the shape of a cone with a central crater. Volcanic cones are of different types, depending upon the nature and size of the fragments ejected during the eruption. Types of volcanic cones include stratocones, spatter cones, tuff cones, and cinder cones. Stratocone Stratocones are large cone-shaped volcanoes made up of lava flows, explosively erupted pyroclastic rocks, and igneous intrusives that are typically centered around a cylindrical vent. Unlike shield volcanoes, they are characterized by a steep profile and periodic, often alternating, explosive eruptions and effusive eruptions. Some have collapsed craters called calderas. The central core of a stratocone is commonly dominated by a central core of intrusive rocks that range from around to over several kilometers in diameter. This central core is surrounded by multiple generations of lav ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
