Overstep
An overstep is a geological form that has a deposition of a stratum across inclined, progressively older rocks.[1] An onlap is a more general term than overstep, in which the younger beds overlap onto successively older beds.
References
- ^ Alistair F. Pitty Structure and Relief 1985 Page 28 "An overstep is a geological term describing the deposition of a stratum across inclined, progressively older rocks, as seen on both flanks of the Market Weighton axis (figure 9). In South East England, the Lower Greensand is another very ..."
 | This geology article is a stub. You can help Wikipedia by expanding it. |