منابع مشابه
Animating Lava Flows
Animating lava flowing down the slopes of a volcano brings several challenges: modeling the mechanical features of lava and how they evolve over time depending on temperature; computing, in a reasonable time, the interactions inside the flow, and between the flow and a complex terrain data-base; and lastly, rendering the visual aspect of the flow. The methods described rely on smoothed particle...
متن کاملAsteroidal Lava Flows
Some meteorites are pieces of lava flows. They have the expected minerals present and the crystals are intertwined in a characteristic way indicative of crystallization in a lava flow. This shows that lavas erupted on at least some asteroids. Age dating indicates that the eruptions took place 4.5 billion years ago. Planetary scientists have recognized three main groups of asteroidal lava flows,...
متن کاملLava Flows during Basaltic Eruptions
12 Observations in the USA, Iceland, and Tenerife, Canary Islands, reveal how processes occurring 13 during basaltic eruptions can result in complex physical and stratigraphic relationships between lava 14 and proximal tephra fall deposits around vents. Observations illustrate how basaltic lavas can 15 disrupt, dissect (spatially and temporally) and alter sheet-form fall deposits. Complexity ar...
متن کاملExploring Self-similarity in Hawaiian Lava Flows
Acknowledgements Work in the Hawai‘i Volcanoes National Park was conducted under National Park Service science permit # HAVO-2012-SCI-0025. This material is based in part on work supported by the National Science Foundation Graduate Research Fellowship under Grant No. 2012116373. Any opinion, findings, and conclusions or recommendations expressed in this material are those of the authors(s) and...
متن کاملBarriers to Protect Hilo from Lava Flows'
THE CITY OF HILa, on the island of Hawaii, lies on the flank of one of the world 's most active volcanoes, Mauna Loa. For more than a century the danger of destruction of the city by lava flows has been recognized. Old documents recount the apprehension with which Hilo residents watched the advance of the lava flows of 1852 and 1855. In 1881 concern was even greater, as the flow front crawled w...
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ژورنال
عنوان ژورنال: Geographical Review of Japan
سال: 1933
ISSN: 2185-1719,0016-7444
DOI: 10.4157/grj.9.702