Subject ASC0001gqq
The Quarterly journal of the Geological Society of London.
v.60 (1904), (1904)
Smithsonian Libraries
BHL Page 35259596
Keywords
igneous rock Bristol district geology igneous rocks cross-section photo-micrograph Bristol microscope view of rocks different magnifications Geology Bristol District Olivine-dolerite Goblin Combe Plagioclase-laths augite Olivine-basalt Milton Hill olivine ferric oxide variolitic basalt Spring Cove Weston-Super-Mare varioles calcite calcareous ash basaltic lapilli Woodspring basalt oolitic limestone lapilli calcareous matrix