Igneous intrusions

vertical rock formation in Yosemite Valley, California, United States

formation of dark-colored, fine-grained, non-granitic intrusive or extrusive igneous rock

thumb| Basic types of intrusions: 1. Laccolith 2. Small dike 3. [[Batholith 4. Dike 5. Sill 6. Volcanic neck, pipe 7. Lopolith As a general rule, in contrast to the smoldering volcanic vent in the figure, these names refer to the fully cooled and usually millions-of-years-old rock formations, which are the result of the underground magmatic activity shown.]] A lopolith is a large igneous intrusion which is lenticular in shape with a depressed central region. Lopoliths are generally concordant with the intruded strata with dike or funnel-shaped feeder bodies below the body. The term was first d

body of intrusive igneous rock that forms by crystallization of magma slowly cooling below the surface of the Earth

mountain

geological feature

mountain in British Columbia, Canada

mountain in Yosemite National Park, California

mountain in British Columbia, Canada

mountain in the United States of America