Concordant igneous intrusion that has a sagging, saucer-like form. The shape of small lopoliths may be controlled by their emplacement in folds, but there is no such obvious control for great lopolithic intrusions. Compare laccolith.
Lopolith
A large intrusion which sags downwards in the centre, forming a saucer-shaped mass. Wilson (1956) GSA Bull. 67, 3 interprets lopoliths as funnel-shaped in cross-section with the most basic rocks at the bottom. See O’Driscoll et al. (2006) Geology 34, 3 on the Great Eucrite intrusion of Ardnamurchan.
- edge effects
- edge enhancement
- Edgehill, Battle of (23 October 1642)
- edge profile
- edge region
- edge-transitive
- edge-triggered flip-flop
- edge triggering
- Edgeworth box
- Edgeworth expansion
- Edgeworth, Francis Ysidro (1845–1926)
- Edgeworth price index
- Edgeworth–Kuiper Belt
- EDI
- Ediacaran
- Ediacaran fauna
- Ediacaran fossils
- Ediacaran period
- EDIFACT
- EDI service provider
- Edison cell
- Edison, Thomas Alva
- edit
- edit detection
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