volcanic caldera

They were at the edge of a huge volcanic caldera.

No historical records of its activity are available from this volcanic caldera.

The island is the only visible portion of a submarine volcanic caldera.

The district is within and adjacent to a Tertiary volcanic caldera.

"No one has ever drilled this deep into an active volcanic caldera, so we can't be certain what we'll find," he said.

It looked like the whole forest was on fire, and the impact site, many miles away, resembled nothing less than an active volcanic caldera.

As a result, Bull's Eye is actually more like a volcanic caldera.

Weyrs are usually built into the cliff faces of ancient volcanic calderas.

It is in a half submerged volcanic caldera.

Lake Toba is one of the largest volcanic calderas in the world, and a major tourism destination.

The morphology of this formation was like no other impact crater or volcanic caldera she had encountered.

These also include the large lake, the Laacher See, a volcanic caldera formed 12000 years ago.

Lauca features include archaeological sites, lava fields and volcanic calderas.

The dark spots in earlier images resembled volcanic calderas more than they did the impact craters seen on those other worlds.

Thera (also called Santorini) is the site of a massive volcanic caldera with an island at its center.

Baekdu mountain still has one of the biggest volcanic calderas in the world, Heaven Lake.

They go into still-active volcanic calderas in them."

Pavonis alone was a regular cylinder: the Platonic ideal of a volcanic caldera.

This is typical of volcanic caldera settings.

A low volcanic caldera, opening deep on the side of a line of shield cones, formed a natural dam.

Ring faults are faults that occur within collapsed volcanic calderas.

Most geologists believe that activity in the Cascades has been relatively intermittent, producing up to 3,000 volcanic calderas at a time.

At the image top, over Io's limb, a bluish plume rises about 140km above the surface of a volcanic caldera.

Tilapia have been introduced to Laguna Junco, an older volcanic caldera.

Along with the others, Lake Tikitapu lies within a volcanic caldera formed within the last 300,000 years.