Ultramafic intrusions in the Lewis Hills Massif, Bay of Islands Ophiolite Complex, Newfoundland: implications for igneous processes at oceanic fracture zones ( Canada).

Jeffrey Alan Karson, D. K. Elthon, S. E. Delong

Research output: Contribution to journalArticle

24 Scopus citations

Abstract

In the Coastal Complex two petrographically distinct types of periodotites are identified, one probably representing differentiates of MORBs, the other having relatively high CaO/Al2O3 and low TiO2/Na2O. The restricted occurance of the latter indicates that their formation was confined to a fracture zone region. They are assocated with cumulates, ultramafics and harzburgite tectonics and may have been incorporated into rising serpentinite diapirs.-AuthorsWoods Hole Oceanog Inst, Woods Hole, MA 02543, USA.

Original languageEnglish (US)
Pages (from-to)15-29
Number of pages15
JournalGeological Society of America Bulletin
Volume94
Issue number1
DOIs
StatePublished - 1983
Externally publishedYes

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ASJC Scopus subject areas

  • Environmental Science(all)
  • Earth and Planetary Sciences(all)

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