World Library  
Flag as Inappropriate
Email this Article

Spilite

Article Id: WHEBN0025339662
Reproduction Date:

Title: Spilite  
Author: World Heritage Encyclopedia
Language: English
Subject: Geology of the Pyrenees, Basalt, Massif Central (geology)
Collection:
Publisher: World Heritage Encyclopedia
Publication
Date:
 

Spilite

Spilite

Spilite (from Greek: σπιλάς) is a fine-grained igneous rock, resulting particularly from alteration of oceanic basalt.

The term was introduced into the geological literature by Alexandre Brongniart in 1827.[1] Spilite is formed when basaltic lava reacts with seawater, or from hydrothermal alteration when seawater circulates through hot volcanic rocks.[2]

It is a metasomatic rock with a microscopic or very-fine grain size produced by hydrothermal alteration of basalt, and composed of albite or oligoclase, together with chlorite, epidote, calcite, and actinolite.[3] Spilite is veined by calcite or chalcedony, and vesicles and cavities are filled with secondary minerals.[2] It is generally classed with basalts, and it often retains many textural and structural features characteristic of basalt.[3]

Notes

  1. ^ Manfred Schidlowski: Spilite and the basal tables volcanism. Natural sciences, Bd. 56, No. 10, P. 488-493, Springer publishing house, Berlin/Heidelberg 1969, ISSN 0028-1042
  2. ^ a b Monica Price, Kevin Walsh, Pocket Nature, Rocks and Minerals, page 63. Dorling Kindersley.
  3. ^ a b McGraw-Hill encyclopedia of the geological sciences, page 793
This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and USA.gov, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for USA.gov and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
 
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
 
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.
 


Copyright © World Library Foundation. All rights reserved. eBooks from Project Gutenberg are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.