Stock (geology)

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A stock of nordmarkite (quartz-alkali syenite) of Triassic age, in the Gevanim Valley, Makhtesh Ramon, southern Israel.

In geology, a stock is a discordant igneous intrusion having a surface exposure of less than 40 sq mi (100 km2), differing from batholiths only in being smaller.[1][2] Most stocks are probably the cupolas of hidden batholiths. Circular or elliptical stocks may have been vents feeding former volcanoes.

References[edit]

  1. ^ GLENCOE SCIENCE | Earth Science Twelfth Grade High School Textbook (Georgia); pg. 115 paragraph 1, pg. 521 question 9
  2. ^ Whittow, John (1984). Dictionary of Physical Geography. London: Penguin, 1984, p. 513. ISBN 0-14-051094-X.