- System of
fractures in earth's
Often associated with lava extrusion.
Source: Leet, L. Don. 1982.
Physical Geology, 6th Edition. Englewood Cliffs, NJ: Prentice-Hall
- a. A system of parallel crustal fractures; a rift structure. AGI
b. In Hawaii, a zone of volcanic features associated with underlying dike
complexes. Syn: volcanic rift zone
Dictionary of Mining, Mineral, and Related Terms