Outcrop Be22-k: Charnockite Boulders at ArdentownOutcrop Be22-k: Charnockite Boulders at Ardentown rockman Thu, 10/01/2009 - 11:59
In the valley of the South Branch of Naaman Creek, through Ardentown, is a group of charnockite boulders and fine-grained mafic rock (probably amphibolitized gabbroid). The mafic rock is mostly non-megacrystic with some coarse-grained and equigranular charnockite. On the ground around the boulders are small pieces that contain a clear example of a contact between coarse-grained and fine-grained rock types.
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