unconformable

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unconformable

[¦ən·kən′fȯr·mə·bəl]
(geology)
Pertaining to strata that do not conform in position, dip, or strike to the older underlying rocks.
References in periodicals archive ?
1, 7) - Here, the Genna Selole Fm rests unconformably on the siliciclastic Middle Triassic Escalaplano Fm (Costamagna et al.
The Middle Jurassic White Throne Member of the Temple Cap Formation in Kane and Washington Counties, Utah, (Figure 11) (Plate 1) is proposed by Rupke (2014) as a potential frac sand source, The Temple Cap Formation has limited geographic extent and occurs as the basal sandstone unit of the San Rafael Group that unconformably overlies the Navajo Sandstone in extreme western Kane County and extreme eastern Washington County (Peterson and Pipiringos, 1979).
Someah e Pain placed on FajanFormation unconformably and covered by Karaj Formation gradually.
Gambier strata locally lie unconformably on Jurassic rocks of the Coast Plutonic Complex, or on basement metamorphic rocks; in the Vancouver North map area, the base of the lower volcanic assemblage is characterized by conglomerate containing cobbles of granodiorite lithologically identical to rocks of the local Coast Plutonic Complex (Roddick 1965).
Columbus, Georgia, lies within a region where coastal plain rocks of the Cretaceous Tuscaloosa Group unconformably lie atop Piedmont metamorphic rocks of the Gondwanan Uchee terrane.
The North Pennines are made up of a mostly horizontal series of carbonate and siliciclastic rocks of Carboniferous age lying unconformably over older clastic volcanic rocks that were intruded by the Weardale Granite.
Two major lithologic units are exposed at the pit: light olive gray (5Y6/1) to grayish yellow green (5GY7/2) smectitic shale overlain unconformably by oyster-bearing very pale orange (10YR8/2) and pale yellowish orange (10YR8/6), hematitic coquinoid limestones, both of the Pliocene El Salto Formation (Fig.
This island is an outcrop of the crystalline basement, unconformably overlain by Pleistocene and Holocene sediments (Dalla Salda, 1981; Ravizza, 1984; Gonzalez and Ravizza, 1987).
This buried ice is interpreted as glacier ice and is overlain unconformably by 1 -2 m of icy diamicton (Pollard, 1990).
All the Cretaceous units distinguished on this map, although in different places, are shown as lying unconformably over the Carboniferous.
Late Eocene sandstone exposed at the Medicine Pole Hills (MPH) in southwestern North Dakota (11 km south of Rhame) is a conglomeratic arkose that unconformably overlies the Paleocene Tongue River Formation (Fort Union Group).
The underlying bedrock is in places either deflated aeolianites or, along the extreme south coast, Pleistocene marine carbonates which unconformably overlie the truncated aeolianite.