Feeder dike intruding tephra, Iceland
intrusive igneous
Diabase dike intruding metaconglomerate, NE Maine
igneous, intrusive, intrusion, mafic
Apophysis of basaltic intrusion in granite
igneous, intrusive, intrusion, mafic
Andesitic dike, New Zealand
dyke, intrusion
Pegmatite dike cutting schist, Montana
intrusion, intrusive, metamorphic, Archean, precambrian
Mafic Dikes intruding Limestone
intrusion, intrusive, igneous
Purcell sill, Glacier National Park, Montana.
igneous, intrusive, intrusion, Precambrian
Garnet Peridotite hand sample
specimen, igneous, intrusive
Granite sill intruding gneiss, Colorado.
igneous, intrusive
Diabase sill in marble, California
igneous, intrusive
Pegmatite dike in granitic rock.
granite, igneous, intrusive, minerals
Composite dike
igneous, intrusive
Pegmatite intruding gneiss , California
sill, dike, igneous intrusion, intrusive
Intrusive contact: southern Sierra Nevada.
igneous, intrusive
horizontally oriented dike, Oregon
mafic intrusion, igneous
Rapakivi granite close-up
granitic
Magmatic flow foliation in granitic rock
granite, intrusive, igneous, minerals