Sentences with phrase «limestone over thousands of years»

Not exact matches

Here, the island's limestone foundations are riddled with caves formed over thousands of years and now decorated with intricate crystalline stalagmite and stalactite formations.

Over thousands of years tides have worn away parts of the limestone cliffs to form overhanging rockfaces and even caves in some instances.

A Parks Ranger will take you deep into the cave to view the unique limestone formations, created over thousands of years.

A National Parks Ranger will take you deep into the cave to view the unique limestone formations, created over thousands of years.

These spectacular rock sculptures were once limestone cliffs that have been eroded away by the ocean and wind over thousands of years.

Cenotes are formed when the limestone that makes up the Yucatan Peninsula is eroded over thousands of years by rainwater, resulting in large «sinkholes» that appear on the surface, exposing hollowed - out caverns below that act as natural cisterns for water.

Just over 150 cement kilns operate in the United States and, each year, they «cook» thousands of tons of rock — primarily limestone — at more than 2,600 degrees Fahrenheit.

The problem for the oceans is that the pH compensating mechanism involves slowing the rate of limestone deposition, which takes thousands of years, and we're adding CO2 over hundreds of years, so the «buffer» is overwhelmed.