columnar jointing

columnar jointing
(in basaltic igneous rocks) a series of generally hexagonal columns formed by vertical joints as a result of contraction during cooling.

* * *


Universalium. 2010.

Игры ⚽ Поможем написать курсовую

Look at other dictionaries:

  • columnar jointing — GLOSSARY OF VOLCANIC TERMS A type of fracture pattern resulting from the thermal contraction of hot volcanic rocks after their crystallization which commonly is expressed in elongate, pentagonal or hexagonal columns oriented perpendicular to the… …   Glossary of volcanic terms

  • columnar jointing — /kəˌlʌmnə ˈdʒɔɪntɪŋ/ (say kuh.lumnuh joynting) noun that variety of jointing which breaks the rock into columns, especially of basaltic rock in which the joints form a hexagonal pattern by shrinkage during cooling …  

  • columnar jointing — (in basaltic igneous rocks) a series of generally hexagonal columns formed by vertical joints as a result of contraction during cooling …   Useful english dictionary

  • Disyunción columnar — en basaltos de la isla Porto Santo. La disyunción columnar es un tipo de diaclasa que se forma por tensiones cuando lava o magma se enfría.[1 …   Wikipedia Español

  • Devils Postpile National Monument — IUCN Category III (Natural Monument) …   Wikipedia

  • Marte Vallis — Streamlined Island in Marte Vallis, as seen by HiRISE. The enlarged image gives a good view of dark slope streaks. Island is just to the west of Pettit Crater. Scale bar is 500 meters long. Coordinates …   Wikipedia

  • Joint (geology) — Joint sets on a bedding plane in flagstones, Caithness, Scotland …   Wikipedia

  • Hughes Mountain — The Devil s Honeycomb, Hughes Mountain State Natural Area …   Wikipedia

  • Mount Cayley volcanic field — Coordinates: 50°07′13″N 123°17′26″W / 50.12028°N 123.29056°W / 50.12028; 123.29056 …   Wikipedia

  • joint — /joynt/, n. 1. the place at which two things, or separate parts of one thing, are joined or united, either rigidly or in such a way as to permit motion; juncture. 2. a connection between pieces of wood, metal, or the like, often reinforced with… …   Universalium

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”