文档介绍：BRITISH GEOLOGICAL SURVEY
RESEARCH REPORT
NUMBER RR 99–06
BGS Rock Classification Scheme
Volume 1
Classification of igneous rocks
M R Gillespie and M T Styles
Subject index Rock classification, igneous rocks
Bibliographical Reference Gillespie, M R, and Styles, M T. 1999.
BGS Rock Classification Scheme
Volume 1
Classification of igneous rocks.
British Geological Survey Research Report, (2nd edition)
RR 99–06.
© NERC Copyright 1999 British Geological Survey
Keyworth
Nottingham NG12 5GG
UK
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Contents
1 Introduction Melilitic rocks
Principles behind the classification scheme Classification of ultramafic melilitic rocks
Changes to the IUGS mendations Non-ultramafic rocks containing melilite
Using the hierarchy Kalsilitic rocks
Classification of kalsilitic rocks
2 Igneous rock nomenclature
Kimberlites
Constructing a rock name
Classification of kimberlites
Use of hyphens
Lamproites
Naming rocks at low levels of the hierarchy
Mineralogy of lamproites
Difficulties in applying the nomenclature system
Chemistry of lamproites