See also Collins (crater) Aldrin (crater) References

Rhyolite is a volcanic rock with high silica content.

The town is located on the southern rim of an impact crater, the Vargeão Dome.

This is a volcanic ridge.

These features are volcanic in origin.

One possible source is volcanic activity.

From Berlin Abel also followed his friends to the Alps.

Full digital facsimile, the Danish Royal Library.

This was thought to be a crater.

Efforts to establish the calendar date of the volcanic eruption have been extremely controversial.

Now I want to take you into the caldera.

We're flying across the caldera floor.

Here is how big of a crater was left.

No life without tectonic activity, without volcanic activity.

The volcanic nature of the island has attracted scuba divers.

The Quill crater is a popular tourist attraction on the island.

The western end begins in the vicinity of the crater T. Mayer, although a few low ridges curve northwards towards Euler crater.

Today, the lake also poses a threat because its natural wall is weakening.

The crater Ångström on the Moon is named in his honour.

A lunar crater was named after Dalton.

Walker is pulled into the crater by the creatures.

This is European space agency Mars Express, image of a crater on Mars and in the middle of the crater we have liquid water, we have ice.

The town was established in 1876 on a farm called Visgat, on the Vredefort crater, the largest and oldest visible bolide impact crater in the world (with a diameter of ).

This is closely related to tectonic and volcanic activity of planets.

The island's volcanic origin is manifested in several hot springs and the two gulfs.

The crater Volkov on the Moon is named in his honor.

Astronomy A crater on the planet Mercury has been named after him.

The chief difficulty in the asteroid hypothesis is that a stony object should have produced a large crater where it struck the ground, but no such crater has been found.

Several lines of evidence point to ongoing volcanic activity on Venus.

Earthquakes can also trigger landslides, and occasionally volcanic activity.

The crater Archytas on the Moon is named in his honour.

Nearby are the extinct Sangangüey volcano and its crater lake.

The stories as to the ancestors of the Tuvaluans vary from island to island.

The ice cap covers the caldera of a volcano with a summit elevation of .

The MSL landed on Mars at Gale Crater in August 2012.

It blasted out a 4 mm crater, but did not penetrate the outer of the window s two panes.

One possibility is that ash from a volcanic eruption was generating the lightning.

Geology and landscape Cocos Island is an oceanic island of both volcanic and tectonic origin.

There are features that may be volcanic in origin, disgorging water mixed with ammonia onto the surface.

Cozumel is a flat island based on limestone, resulting in a karst topography.

This is clearly demonstrated by two eruptions, Agung (1963) and El Chichón (1982).

So, this is called Victoria Crater, which is about a few football fields in size.

Lake Towada Lake Towada, a caldera, lies on the boundary between Akita and Aomori Prefectures.

Anderson awakens and tracks Walker to the crater where they found the cosmonaut.

c. 5677 BC Cataclysmic volcanic eruption of high Mount Mazama creates Oregon's Crater Lake when the resulting caldera fills with water.