Dear all,
I require help in distinguishing between different types of breccias, in particular between tectonic
breccias and breccias that could have been caused by the intrusion of dykes into carbonate
sequences. I have looked around but cannot find any clear cut criteria.
The breccias that I am looking at have irregular boundaries and are not clearly related to faults.
Where faults are present, they are to one side and some distance away, usually a few metres. In
addition, some of the breccia bodies are quite large, range in size from a few metres to 20 m in
diameter and contain clasts (both angular and rounded) of carbonate and igneous rocks upto 1 m
across.
These do not look like any of the psudotahylyte and cataclasite breccias that I have seen.
Any help will be much appreciated.
Regards
Alfredo Camacho
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Alfredo Camacho
Geological Sciences and Geological Engineering
Queen's University
Kingston,
Ontario, K7L 3N6
CANADA
Phone 1-613-533 6169
Fax 1-613-533 6592
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