Broken Rocks · Breccia I

The subject of breccias and mineralisation is rather large and it is not possible to remotely cover the field in one slender volume. As a starting point it is perhaps best to deal with the vexing problem of breccia definition. Readers may be surprised to hear that there is no satisfactory definition of the term. This conclusion was also reached by Laznika (1988) in his massive, although somewhat confusing tone on the subject. Some of the problems are immediately seen in the terms sedimentary breccia and volcanic breccia. These terms are perfectly acceptable to sedimentologists and volcanologists but do not sit very well with structural/economic geologists.