(in basaltic igneous rocks) a series of generally hexagonal columns formed by vertical joints as a result of contraction during cooling.
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
Columnar jointing definition, (in basaltic igneous rocks) a series of generally
hexagonal columns formed by vertical joints as a result of contraction during
Columnar definition, shaped like a column. See more.
Joints are fractures in rocks, and columnar joints are a specific type of joint
pattern. ... Bates, Robert L. and Julia A. Jackson, Dictionary of Geological Terms.
Columnar jointing forms in lava flows, sills, dikes, ignimbrites (ashflow tuffs), and
shallow intrusions of all compositions. Most columns are straight with parallel ...
Define columnar. columnar synonyms, columnar pronunciation, columnar
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explanation free. ... Related to columnar: columnar epithelium, columnar jointing
Define columnar: of, relating to, resembling, or characterized by columns. ...
about columnar. Britannica English: Translation of columnar for Arabic speakers