Limestone pavements are made up of large slabs of rock called clints ... damaged by people removing the stone for building or for decorative rockeries. Individual sites were designated as reserves ...

Mysterious tunnels in desert rocks may be the work of unknown microbes, hinting at a hidden world inside marble and limestone ...

CONNOR: Good thinking! I read a bit about limestone on the bus journey. Limestone is a sedimentary rock created by layers of skeletons and shells of sea creatures found in ancient, warm ...

It is a magnificent piece of landscape which rises out of the ... Bonaventure Island and most of all Percé Rock - the limestone formation that most Canadians have never seen except in pictures.

Unusually small burrows, i.e., tiny tubes that run through the rock in a parallel arrangement from top to bottom, were discovered in marble and limestone ... Cees Passchier Landscape in Namibia ...

The aqua blue waters lap the rock formations, and in some cases, blast water through crevices in the Anastasia limestone, which gave the preserve its name. My son regularly climbs barefoot on the ...