GRD0417S0
19-91
Diorite
Paleozoic › Devonian › Early Devonian
398.0
-
416.0
0
Ritter 154 › Cabinet 29 › Drawer I
-
Hypersthene quartz diorite, Spaulding stage (now mapped as Spaulding Tonalite)
Lyons Co-3-71. Age from Horton et al (2017) in macrostrat
New Hampshire Magma
New Hampshire
NW cor. Concord sheet on ramp of Exit 8 on I 89, E across from highway 103.
Latitude: 43.25°
Longitude: -71.75°
