unconformity
21unconformity — n discontinuity, irregularity, unconformability FORMAL disconformity ≠ conformability …
22Hutton's Unconformity — is the name given to various famous geological sites in Scotland. These are places that were identified by 18th century Scottish geologist James Hutton as an unconformity, which provided evidence for his Plutonist theories of Uniformitarianism… …
23Great Unconformity — The Great Unconformity is a geologic feature where two adjacent layers of rock were not formed one after another in the earth s development. The lower layer was always at a high point, undergoing erosion, and in this case for an extended time,… …
24Carlin Unconformity — The Carlin Unconformity or Carlin Trend is a geologic feature in northeastern Nevada which represents a period of erosion or non deposition likely associated with a collision between a tectonic crustal block called a terrane and the North… …
25angular unconformity — A geological unconformity with marked difference in dip of the superimposed series [16] …
26spring, unconformity — A spring issuing at the contact of an aquifer with an unconformity …
27Geology of the Grand Canyon area — The geology of the Grand Canyon area exposes one of the most complete sequences of rock anywhere, representing a period of nearly 2 billion years of the Earth s history in that part of North America. The major sedimentary rock layers exposed in… …
28Natural Arch, Tirumala hills — Coordinates: 13°41′N 79°25′E / 13.69°N 79.42°E / 13.69; 79.42 …
29Cross-cutting relationships — Cross cutting relations can be used to determine the relative ages of rock strata and other geological structures. Explanations: A folded rock strata cut by a thrust fault; B large intrusion (cutting through A); C erosional angular unconformity… …
30James Hutton — Infobox Scientist name = James Hutton box width = image width = 150px caption = James Hutton, painted by Abner Lowe birth date = 14 June 1726 birth place = Edinburgh death date = 26 March 1797 death place = residence = citizenship = nationality …
