2 pages matching geology "black river" "Orleans county" vermont in this book
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amphibolite anticlinal band basin beds belt of slate Black River Brook Bulletin C. H. Hitchcock Cambrian Champlain Valley Charlestown Chazy chloritic clays cleavage conglomerate Connecticut Conway group Conway schists County Craftsbury deposits Devonian diabase dikes east eastern extends fault formation fossils G. H. Perkins Geologist Geology Geology of Vermont gneiss Goshen Grand Isle granite Green Mountains green schists H. M. Seely Hampshire Hanover Hill Hudson igneous intrusives Irasburg Isle La Motte Lake Champlain ledges limestone locality Lower Cambrian marble mass Memphremagog mica mica schist miles northern Norwich Ordovician outcrops pebbles phyllite Plate Pleistocene present Professor quadrangle quarries quartz quartzite region ridge rocks schists sericite sericite schist shale shows side Sixth Report specimens staurolite strata structure surface synclinal T. N. Dale Taconic terranes thickness thru tion town township Trenton veins Vermont village Waits River western