The Geology of New Hampshire: Bedrock geology, by M. P. Billings

Albee formation Ammonoosuc thrust Ammonoosuc volcanics Amphibole amphibolite andesine anticline average band belt Bethlehem gneiss binary granite biotite chiefly chlorite Clough quartzite composed Conway granite correlated dark-gray Devonian diameter domes Eliot fault feet thick feldspar fine-grained Fitch formation foliation fossils Franconia gabbro garnet Geol geological map Gile Mountain gneiss granite granodiorite gray Hampshire Hampshire plutonic series hastingsite hornblende Kinsman quartz monzonite Lithology Littleton formation Littleton-Moosilauke area magma Massachusetts medium-grained Merrimack group metamorphosed mica schist Middle Silurian miles long miles west miles wide Mississippian Moat volcanics muscovite northwest older oligoclase Oliverian plutonic series Oliverian series Ordovician Orfordville Orfordville formation Partridge formation phenocrysts phyllite plagioclase plutonic rocks Pond volcanics porphyritic potash feldspar quadrangle quartz diorite quartz monzonite quartzite ring-dikes schist shown sillimanite sillimanite zone Silurian slate southeast southeastern New Hampshire specimens staurolite stratigraphic syenite syncline tr tr tr Tripyramid type locality Vermont Waits River White Mountain series Winnipesaukee