Advertisement

Lamprophyres pp 103-112 | Cite as

Inclusion Suites — Macrocrysts, Xenocrysts, Xenoliths, etc.

  • N. M. S. Rock

Abstract

The spectrum between truly cognate and wholly foreign inclusions was explained in the introduction to Chapter 4. Here we deal with inclusions which are largely foreign (Types B-F). Table 6.1 explains the fairly standard nomenclature used. Inclusions characteristically constitute tens of percent of the volume of individual lamprophyre dykes, and locally reach 70–80% (e.g. Reynolds 1936; Ayres & Higgins 1939; Elders 1957). They can be concentrated in the central portions of dykes and sills via flow differentiation (Section 3.1).

Keywords

Alkali Basalt Nepheline Syenite Discrete Nodule Lamprophyre Dyke Inclusion Locality 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Copyright information

© Springer Science+Business Media New York 1991

Authors and Affiliations

  • N. M. S. Rock
    • 1
  1. 1.Key Centre for Strategic Mineral Deposits, Department of GeologyUniversity of Western AustraliaAustralia

Personalised recommendations