Geology roof control and mine design

Identifying these rock types underground is not always easy since the majority of sedimentary sequences tend to grade from one rock type to another. Limestones grade from shaley or sandy to pure limestones and it is difficult to distinguish between the exact classification without laboratory testing...

Full description

Saved in:
Bibliographic Details
Published in:Coal age (Overland Park, Kan.) Kan.), 2001-12, Vol.106 (12), p.29-31
Main Authors: PENG, Syd S, FINFINGER, Gerald L
Format: Magazinearticle
Language:English
Subjects:
Coal
Earth sciences
Earth, ocean, space
Engineering and environment geology. Geothermics
Engineering geology
Engineers
Exact sciences and technology
Fault lines
Geology
Laboratories
Mining
Sedimentary rocks
Seismic engineering
Stone
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Identifying these rock types underground is not always easy since the majority of sedimentary sequences tend to grade from one rock type to another. Limestones grade from shaley or sandy to pure limestones and it is difficult to distinguish between the exact classification without laboratory testing. Purer limestones tend to be stronger and when broken have a clean sharp break that is glassy in appearance. The less pure limestones tend to break along planes of laminations.
ISSN:1091-0646