Many large, ancient river valleys are found in this area; along with collapsed features, called Chaos.

"The channel is probably a collapse feature," she wrote.

There are many other geologic collapse features on the mountain's flanks.

The collapse feature is an analog of Earth's volcanic calderas.

Its floor displays an irregularly shaped collapse feature, which is called a central pit.

Cliffs, landslides, and numerous collapse features can be seen in this detailed image.

The shield is transected roughly northeast to southwest by a set of collapse features.

The large Hawaiian shield volcano has a caldera at the summit - a collapse feature.

Integral collapse feature to ensure maximum clamping force applied to the fixture.

Collapse features are particularly notable at the Cretaceous-Devonian contact.

The crater displays an arcuate collapse feature (central pit) along the peak ring.

This section is characterised by large pinnacles and collapse features and abundant reef fish.

They often also occur around geologic reef complexes and collapse features such as ancient sinkholes.

Its floor is covered by the smooth plain material and displays a kidney-shaped collapse feature, which is also called a central pit.

But such collapse features can also happen when a supervolcano erupts, emptying the subsurface of hot magma.

A "surface collapse feature", also known as a subsidence crater, was formed by material collapsing into the cavity formed by the explosion.

There are also several hydrothermal explosion craters, which are not to be confused with calderas, which are collapse features.

In addition areas of karst landscapes which are underlain by underground caverns and potential sinkholes or collapse features are of importance for these scientists.

The island is the eroded remnant of a "hotspot" shield volcano with a caldera complex or collapse feature (Liu Bench) on the south face.

The three volcanoes (most notably Arsia Mons) also all have collapse features and rifts, from which flank eruptions issued, that transect them along the same northeast-southwest trend.

And then he caught sight in the bathroom mirror of the collapsed features, the swollen neck and ragged grey hair of the old man upon whom he still looked as a stranger.

The Big Basin of Clark County is a 2 km diameter, 35 m deep, dissolution collapse feature that formed by the dissolution of salt beds in the subsurface.

What makes Diamond Craters stand out is all the doming and collapse features across the volcanic field, suggesting that as the eruption progressed, parts of the land surface lowered like we saw at Barðarbunga in Iceland recently.