文档介绍：BRITISH GEOLOGICAL SURVEY
RESEARCH REPORT
NUMBER RR 99–03
BGS Rock Classification Scheme
Volume 3
Classification of sediments and sedimentary rocks
C R Hallsworth and R W O’B Knox
Subject index Rock classification, sediments and sedimentary rocks
Bibliographical Reference Hallsworth, C R, and Knox, R W O’B. 1999
BGS Rock Classification Scheme
Volume 3
Classification of sediments and sedimentary rocks.
British Geological Survey Research Report, RR 99–03.
© NERC Copyright 1999 British Geological Survey
Keyworth
Nottingham NG12 5GG
UK
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Contents
1 Introduction 5 Iron-sediments and ironstones
Principles of this classification Iron-sediments
Summary of the structure and development of the Ironstones
classification scheme Classification of ironstones by texture
Constructing a sediment name Monogranulate ironstones
Use of ediments and sedimentary rocks Banded ironstones (laminated ironstones)
2 Siliciclastic sediments and sedimentary rocks mended qualifiers
Siliciclastic rudaceous sediments and sedimentary Rocks rich in secondary iron
rocks anic-rich sediments and