The geology of Ascutney Mountain, Vermont . m;. (B) THE MERIDEN GRAVURE CO. DALY. J COMPARISON OF MET AMORPHIC EFFECTS. 33 » explained as characterizing a phase of the schist which was originallyless richly charged with the argillaceous material that has elsewhereyielded, under the metamorphic process, the minerals above schistose structure is reverted to; garnet, pleonaste, corundum,and tourmaline are present, but are very subordinate and confined tothe structure planes. Intersertal microperthite forms an accessoryit shows occasionally the Carlsbad twinning. At the contact there
The geology of Ascutney Mountain, Vermont . m;. (B) THE MERIDEN GRAVURE CO. DALY. J COMPARISON OF MET AMORPHIC EFFECTS. 33 » explained as characterizing a phase of the schist which was originallyless richly charged with the argillaceous material that has elsewhereyielded, under the metamorphic process, the minerals above schistose structure is reverted to; garnet, pleonaste, corundum,and tourmaline are present, but are very subordinate and confined tothe structure planes. Intersertal microperthite forms an accessoryit shows occasionally the Carlsbad twinning. At the contact there Is the same relative poverty in metamorphicproducts and probably for a similar reason to that adduced for thelast phase (spec. 130). The rock is a compact mass of quartz, chlori-tized biotite, and pleonaste, with ilmenite, tourmaline, cordierite, andcorundum as accessories. SERIES C OF SPECIMENS FROM THE METAMORPHIC AUREOLE. A third suite of specimens illustrating the contact zone was col-lected on the south side of the mountain. The phenome
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Keywords: ., bookcentury1900, bookdecade1900, bookpublisherwashi, bookyear1903
