The geology of Ascutney Mountain, Vermont . ornnduni in a matrix composed chiefly of cordierite; B, Thin section ofquartz-bearing hornblende-biotite-diorite, showing an apatitecrystal inclosing a core of brown glass 32 IV. A, Typical thin section of the nordmarkite of the Main stock, granitic phase; B, Pyroclastic feldspar (soda-orthoclase) siir-rounded by a reaction rim rich in alkaline hornblende, fromthe large paisanite dike on northwest slope of Ascutney Mountain .. 58 V. A, Segregation of mica and hornblende concentrically arranged,in paisanite; B, Basic segregations in nordmarkite at Cry
The geology of Ascutney Mountain, Vermont . ornnduni in a matrix composed chiefly of cordierite; B, Thin section ofquartz-bearing hornblende-biotite-diorite, showing an apatitecrystal inclosing a core of brown glass 32 IV. A, Typical thin section of the nordmarkite of the Main stock, granitic phase; B, Pyroclastic feldspar (soda-orthoclase) siir-rounded by a reaction rim rich in alkaline hornblende, fromthe large paisanite dike on northwest slope of Ascutney Mountain .. 58 V. A, Segregation of mica and hornblende concentrically arranged,in paisanite; B, Basic segregations in nordmarkite at Crystal Cascade 62 VI. Basic segregations and inclxisions of schist in nordmarkite at Crystal Cascade 64 VII. Geologic map and section of Ascutney Mountain and vicinity 70 Pig. 1. Sketch x^lan of intrusive rocks on Little Ascutney Mountain 74 5 Digitized by the Internet Archive in 2010 with funding from Boston Library Consortium IVIember Libraries U. S. GEOLOGICAL SURVE BULLETIN NO. 209 PL. GENERAL VIEW OF ASCUTNEY MOUNTAIN, PIERbON PEAK, AND LITTLEASCUTNEY a point on the New Hampshire side of the Connecticut River, looking northwest.
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Keywords: ., bookcentury1900, bookdecade1900, bookpublisherwashi, bookyear1903
