Listování
od 

Rhynchonellacea
rhyolite
Riccati equations
Richard Heinberg
Richter's scale
Riegrova stezka Trail
Ries area
Ries crater
riess/würm solifluction horison
Rietveld refinement
rift
rifting
rigid foundation
rigid nodules
rinds
ring current
ring structure features
ripple marks
risk
risk analysis