Results: 61 - 70 of 94
Jul 14, 2020
… but in most areas it is a minor unconformity caused largely by … and foothills, it is a subaerial unconformity (Richards, 1989b). The … 14.28 , 14.29 , and 14.30 ). The unconformity between the …
Jul 14, 2020
… rocks with an erosional unconformity that has up to 1400 m … with the pre-Devonian erosional unconformity. The top of the Elk … Formation) that overlies an unconformity. The shale unit is …
Jul 14, 2020
… of the succession is a regional unconformity, except in the Rocky … Ranges below the sub-Devonian unconformity. E-E' ( Fig. 9.6 ) … the sub-Middle Devonian unconformity rises …
Jul 14, 2020
… Columbia, the sub-Jurassic unconformity truncates successively … includes thin and discontinuous, unconformity-bounded, Upper … of the major "sub-Mannville" unconformity below them in …
Jul 14, 2020
… the concept of continent-wide unconformity-bounded units, which … therefore, may include both unconformity- bounded depositional … Posamentier et al., 1988) is the unconformity surface that forms as …
Jul 14, 2020
… another, sediments beneath the unconformity will be of different … of erosion (post-Mannville unconformity) ( Fig. 17.7 ). … strata below the post-Mannville unconformity rather than as a …
Jul 14, 2020
… eroded at the sub-Devonian unconformity in central and … eroded by the sub-Devonian unconformity, but facies trends … of the sub-Middle Ordovician unconformity is preserved beneath …
Jul 14, 2020
… The documentation of a major unconformity and an estuarine … the sharp basal contact to an unconformity at the base of the … suggest the presence of an unconformity between the two …
Jul 14, 2020
… margin uplift events. The Coplin unconformity occurs regionally and … there is no evidence of an unconformity and Doig-Halfway … deposition was continuous. An unconformity separating the Halfway …
Jul 14, 2020
… is represented by a basin-wide unconformity. The Colorado Group … In the Manitoba Escarpment, the unconformity likely occurs within … (Figs. 20.9 , 20.10 ). This unconformity has bevelled the …