disconformity

A type of unconformity called a disconformity was formed.

Paleosol might develop right above the disconformity surface because of the non-deposition setting.

Following a disconformity the Silurian black slates are laid down 0.4 km thick.

This is expressed by a disconformity that removed successively deeper reservoir beds to the north and west.

Disconformity: the contact between younger and older beds is marked by visible, irregular erosional surfaces.

This would suggest that the disconformity at the base of the Shinumo Quartzite in a minor one.

It is separated by an erosional disconformity from the next member, the Anembalemba Member.

As documented by the dating of detrital zircons, this disconformity is estimated to represent a period of about 75 million years.

Disconformity - a surface that represents missing rock strata but beds above and below that surface are parallel to one another.

A paraconformity is a type of disconformity in which the separation is a simple bedding plane with no obvious buried erosional surface.

A disconformity is an unconformity between parallel layers of sedimentary rocks which represents a period of erosion or non-deposition.

The contact between the Hatakai Shale and overlying Shinumo Quartzite is a distinct, significant disconformity.

All the tools come from the Busidama Formation, which lies above a disconformity, or missing layer, which would have been from 2.9 to 2.7 mya.

The third stage is represented by regional uplift, which accompanied the collision of an Avalon terrane with a promontory, and subsequently, developed a regional disconformity.

This disconformity is sharp and locally truncates cross-beds, and channel forms, within the sandstones of the underlying Hatakai Shale.

This disconformity is sharp and locally truncates cross-bedding and channels exhibited by sandstones in the underlying Hakatai Shale.

There is also some evidence for a change in bedding orientation across the boundary, which is nowhere well-exposed, suggesting that it may represent some sort of disconformity.

The youngest fauna are Maastrichtian, with an apparent disconformity between the Late Cretaceous and Paleocene, marked by high levels of gamma radiation on logs.

Overall, the strata within it are conformable with the exception of a significant disconformity between the Hatakai Shale and Shinumo Quartzite.

The contact between the Cardenas Basalt and the overlying Nankoweap Formation is an erosion surface that is a disconformity or even a slight angular unconformity.

A blended unconformity is a type of disconformity or nonconformity with no distinct separation plane or contact, sometimes consisting of soils, paleosols, or beds of pebbles derived from the underlying rock.

Within the lower subarkose of the Shinumo Sandstone, a basal lag of conglomerate, which contains basement clasts up to 5 cm (2 in) across, lies on the eroded surface that forms this disconformity.

Composed of sandstone, siltstone, and conglomerate eroded from a late Cenozoic uplift of the Rocky Mountains, it is separated from the lower Trujillo Formation by a disconformity, and a very long hiatus.

The Sundance Formation underlies the western North American Morrison Formation, the most fertile source of dinosaur fossils in the Americas, and is separated by a disconformity from the underlying Upper Triassic Chugwater Formation red beds.