Columnar jointing
id:
columnar-jointing-222-1776535
title:
Columnar jointing
text:
Columnar jointing is a geological structure where sets of intersecting closely spaced fractures, referred to as joints, result in the formation of a regular array of polygonal prisms, or columns. Columnar jointing occurs in many types of igneous rocks and forms as the rock cools and contracts. Columnar jointing can occur in cooling lava flows and ashflow tuffs (ignimbrites), as well as in some shallow intrusions. Columnar jointing also occurs rarely in sedimentary rocks, due to a combination of
brand slug:
wiki
category slug:
encyclopedia
description:
Polygonal stone columns
original url:
https://en.wikipedia.org/wiki/Columnar_jointing
date created:
2007-12-11T15:29:17Z
date modified:
2024-09-14T02:33:37Z
main entity:
{"identifier":"Q15427433","url":"https://www.wikidata.org/entity/Q15427433"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/2/23/Giant%27s_Causeway_2006_08.jpg","width":1038,"height":1075}
fields total:
13
integrity:
16