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


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
Issue number1
StatePublished - 1983
Externally publishedYes


ASJC Scopus subject areas

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

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