from The Century Dictionary.
- In an unconformable manner; so as not to be conformable. See
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- adverb In an
Sorry, no etymologies found.
Then the edges of the old red sandstone were eaten away by the sea -- and some think by ice too, in some earlier age of ice; and then the limestone coral reef was laid down on them, "unconformably," as geologists say -- just as you saw the new red sandstone laid down on the edges of the limestone; and so one world is built up on the edge of another world, out of its scraps and ruins.
It is formed by the relatively resistant quartz sandstone of the Middle Proterozoic Kombolgie Formation unconformably overlying less resistant rocks.
The elliptical 5x7-km mountain consists of submarine and subaerial basaltic lavas and siltstones unconformably overlying Precambrian schists.
Hitherto no fossils have been obtained from these beds save some obscure plant-like markings, but they are evidently a continuation southwards of the sandstones of Hoy, which there rest unconformably on the flagstone series of Orkney.
Throughout its whole length, three distinct geological formations may be traced, the two lower of which have followed in immediate succession, and are conformable with one another, while the third rests unconformably upon them, following all the inequalities of the greatly denudated surface presented by the second formation.
The Chalk again is vertical on the flanks of the Pyrenees, and the tertiary strata repose unconformably upon it.
The Oceanic series is generally overlaid directly, and unconformably, by coral limestones; but at Bissex Hill, at the base of the coral limestones, and resting unconformably upon the
Radiolarian cherts are covered unconformably by conglomerates (Bennan Hill near Straiton and Kennedy's Pass) which are associated with limestones of
One is that described above, in which a certain series of beds having been raised out of their natural horizontal position, another series has been deposited upon them, thus resting unconformably above.
There can be no question that this more recent formation rests unconformably upon the sandstone beds beneath it; for it fills all the inequalities of their denudated surfaces, whether they be more or less limited furrows, or wide, undulating depressions.