Australia is known for its remoteness. There are some quite remote areas in the Northern Rivers too. Along the escarpment there are rugged areas and visitors are rare. This means that sometimes rocks even though mapped broadly have geological units that have not been researched enough to relate them to surrounding units. It is a rare thing though, and rarely have rock units not been named, and categorised, even rarer is when a rock is found by the side of one of the national highways!
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| un-categorized granite on the New England Highway, Glencoe |
The picture shows a granite that is currently mapped as "unassigned Permian intrusive - felsic". There may have been some investigations here in the past. I just can't believe some place so obvious like this one has not been investigated in detail.
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