paraconformity

paraconformity

[¦par·ə·kən′fȯr·məd·ē]
(geology)
A type of unconformity in which strata are parallel; there is little apparent erosion and the unconformity surface resembles a simple bedding plane. Also known as nondepositional unconformity; pseudoconformity.
References in periodicals archive ?
Two sequence boundaries (SB-1 and 2); one is paraconformity (SB-1) at the contact of Permian Chhidru Formation and Early Triassic Mianwali Formation while the other one (SB-2) is at the top of Mianwali Formation which is present in the form of laterite beds, surface of erosion and non deposition.
Mianwali Formation overlies the Chhidru Formation of late Permian age, though a paraconformity is indicated on palaeontological and palynological grounds [3].
Except in the northeasternmost part of the Prague Syncline (including the Prague-Repy section), the black shale succession was interrupted by a hiatus (rather a long-term omission of sedimentation) in the upper part of the Parakidograptus acuminatus Biozone (Storch 2006) which resulted in a biostratigraphically dated paraconformity in most of the sections (including the Hlasna Treban and Radotin tunnel sections).
Due to the fact that the welded ash of Layer IV is not continuous, Layer V often rests directly above Layer III, creating a paraconformity in the stratigraphic record in certain areas of the site.
The boundary between the deposits of the Zacler and Glinik (Odolov) Formations is marked by paraconformity corresponding to the non-deposition period at the turn of the Westphalian C and D (about 308-309 Ma) (Nemejc, 1933 and 1958).
The base of the Carniolas is a sharp erosion surface the top an angular unconformity (basin margins) or a paraconformity (basin center, Aurell et al.
Kummel and Teichert (1964, 1966) studied various sections in the Salt Range and Trans Indus Range and described distribution of lithology and fauna of the beds above and below the Permian-Triassic Boundary and called this boundary as a Paraconformity of undetermined magnitude".
The lower contact with Wargal Limestone is transitional whereas the upper contact with the Mianwali Formation of Triassic age is sharp and is marked by a paraconformity [2].