- published: 01 Sep 2014
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A caldera is a cauldron-like volcanic feature usually formed by the collapse of land following a volcanic eruption. They are sometimes confused with volcanic craters. The word comes from Spanish caldera, and this from Latin CALDARIA, meaning "cooking pot." In some texts the English term cauldron is also used.
In 1815, the German geologist Leopold von Buch visited the Las Cañadas caldera of Teide on Tenerife, and the Caldera de Taburiente on La Palma, both in the Canary Islands. When he published his memoirs he introduced the term caldera into the geological vocabulary.
A collapse is triggered by the emptying of the magma chamber beneath the volcano, usually as the result of a large volcanic eruption. If enough magma is ejected, the emptied chamber is unable to support the weight of the volcanic edifice above it. A roughly circular fracture, the ring fault, develops around the edge of the chamber. Ring fractures serve as feeders for fault intrusions which are also known as ring dykes. Secondary volcanic vents may form above the ring fracture. As the magma chamber empties, the center of the volcano within the ring fracture begins to collapse. The collapse may occur as the result of a single cataclysmic eruption, or it may occur in stages as the result of a series of eruptions. The total area that collapses may be hundreds or thousands of square kilometers.
Actors: Keiko Toda (actress), Leiji Matsumoto (writer), Eiko Masuyama (actress), Tôru Furuya (actor), Tôru Furuya (actor), Shigeru Chiba (actor), Mami Koyama (actress), Ichirô Nagai (actor), Shô Hayami (actor), Toshio Furukawa (actor), Ken'ichi Ogata (actor), Masaharu Satô (actor), Kaneto Shiozawa (actor), Shûichi Ikeda (actor), Keiko Han (actress),
Plot: In the year 1999, astronomer Professor Amamori has discovered a tenth planet within the solar system. Unfortunately, he also discovers that it is set to collide with the Earth on 9 September 1999, at 9:09:09 AM. Professor Amamori makes preparations to save the planet, aided in his campaign by his nephew Hajime and his secretary Yukino Yayoi. Unknown to anyone, Yayoi harbours deep secrets: LaMetal crosses paths with Earth (and wreaks chaos) every millennium, it is home to an advanced civilization who enslave any human survivors of the cataclysm, and she herself is the Millennial Queen, a special citizen of La Metal who comes to Earth every 1000 years to prepare for the this passing. However, she also hopes to save Earth, for though she is from LaMetal, she cannot stand aside and let her home world destroy the planet and its natives that she has come to love. And so she begins a desperate struggle of her own.
Keywords: anime, based-on-comic, based-on-manga, space, spacecraft