block

USGS PHOTO GLOSSARY OF VOLCANIC TERMS
A volcanic block is a solid rock fragment greater than 64 mm in diameter that was ejected from a volcano during an explosive eruption. Blocks commonly consist of solidified pieces of old lava flows that were part of a volcano's cone.
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Photograph by C. Heliker on January 26, 1988
This block was ejected into the air by an explosion caused by the collapse of an active lava delta at Kilauea Volcano, Hawai`i. New land built by lava often slides into the ocean, which enables seawater to mix with lava and hot rocks. Such violent mixing may trigger steam explosions that can blast hot rocks 10 to 50 cm in diameter more than 50 m inland.

Glossary of volcanic terms. - University of Wisconsin Oshkosh. . 2001.

Synonyms:
, , , , , , , , , (as of wood or stone), / , , (on a block), (on which objects are made) / , , , , , / (in a square or a continuous row), / , / , / (in fig. sense), , / , , ,


Look at other dictionaries:

  • Block B — (BlockBuster) Cyworld Dream Music Festival 23.07.11 Основная информация …   Википедия

  • Block — (bl[o^]k), n. [OE. blok; cf. F. bloc (fr. OHG.), D. & Dan. blok, Sw. & G. block, OHG. bloch. There is also an OHG. bloch, biloh; bi by + the same root as that of E. lock. Cf. {Block}, v. t., {Blockade}, and see {Lock}.] [1913 Webster] 1. A piece… …   The Collaborative International Dictionary of English

  • Block D — ist eine Raketenoberstufe, die in einigen Typen der früheren sowjetischen und jetzigen russischen Trägerraketen verwendet wird. Die verschiedenen Varianten der Block D Oberstufe wurden bereits über 250 mal bei Raketenstarts verwendet[1]. Block D… …   Deutsch Wikipedia

  • Block DM — Block D ist eine Raketenoberstufe, die in einigen Typen der früheren sowjetischen und jetzigen russischen Trägerraketen verwendet wird. Die verschiedenen Varianten der Block D Oberstufe wurden bereits über 250 mal bei Raketenstarts verwendet[1].… …   Deutsch Wikipedia

  • Block I — Block Cette page d’homonymie répertorie les différents sujets et articles partageant un même nom. Block, bloc en anglais, peut faire référence à : block manuel et Block automatique lumineux, des systèmes de signalisation ferroviaire, Block… …   Wikipédia en Français

  • Block II — Block Cette page d’homonymie répertorie les différents sujets et articles partageant un même nom. Block, bloc en anglais, peut faire référence à : block manuel et Block automatique lumineux, des systèmes de signalisation ferroviaire, Block… …   Wikipédia en Français

  • Block! — Saltar a navegación, búsqueda Block! Género Serie animada Creador Álvaro Ceppi País Chile Duración por episodio 15 minutos aprox …   Wikipedia Español

  • block — ● block nom masculin (anglais block, action de stopper) Au volley ball, synonyme de contre. Au tennis de table, remise en demi volée. ● block (homonymes) nom masculin (anglais block, action de stopper) bloc nom masculin bloque …   Encyclopédie Universelle

  • block — block·ad·er; block·ad·ing; block·age; block; block·er; block·flö·te; block·head·ism; block·i·ly; block·ish; block·man; block·ship; de·block; su·per·block; un·block; block·bust·ing; block·ade; chock·a·block; block·head·ed·ly; block·head·ed·ness;… …   English syllables

  • block — [bläk] n. [ME blokke < OFr bloc & MDu block < IE * bhlugo < base * bhel , a thick plank, beam > BALK, Gr phalanx, L fulcrum] 1. any large, solid piece of wood, stone, or metal, often with flat surfaces 2. a blocklike stand or platform …   English World dictionary

  • Block — may refer to: * A way of controlling train movement in railway signalling * Postage stamp block, an attached group of postage stampsObjects* A large concrete or stone brick * Block (sailing), a single or multiple pulley used on sailboats *… …   Wikipedia

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