A straight or curved line which joins the points of maximum curvature along the hinge of a fold.
Hinge line
A line either side of which isostatic readjustment is uneven; the line separating uplift from subsidence (Sella et al. (2007) Geophys. Res. Letts. 34, L02306). In glaciology, it is the point where a glacier, reaching the coast, starts to float (Debenham (1965) Geo. J. 131, 3).
- arccos
- arccosh
- arc discharge
- arc elasticity
- Arcesilaus (c.316–242)
- arch
- archae-
- Archaea
- Archaean
- archaebacteria
- archaeoastronomy
- Archaeocalamites radiatus
- Archaeoceti
- Archaeocyatha
- Archaeogastropoda
- archaeological geology
- archaeology
- archaeomagnetism
- archaeometallurgy
- Archaeopteris
- Archaeopteryx lithographica
- archaeopyle
- Archaeosperma arnoldii
- Archaeosphaeroides
- Archaeozoic