I stumbled over a bit of rock rubble on the floor.

It prefers shallow waters with rock rubble substrates.

In the area of rock rubble fields and high ridges the vegetation was mainly crustacean lichens.

There were ledges up near the roof, in the cracks, behind the piles of rock rubble produced when the Celestials levelled the floor.

Cochlostoma septemspirale lives in forest habitats, rocks, rock rubble, walls and grassy slopes, up to 2100 m.

By contrast, adults prefer areas of sand, sand and rock rubble, or hard bottom, and are often found in lagoons or on coral reefs.

Its walls are uncoursed cement rock rubble laid in Rosendale cement, with some embellishments and flourishes at windows and doors.

Pupilla triplicata lives in grass near limestone rocks, in dry and sunny habitats, often in limestone rock rubble with xerophilous vegetation.

We got to the bottom using a rickety combination of hoists, ladders and ropes, and at the bottom we found a deep layer of blasted rock rubble.

To prevent access to the walls themselves, the inhabitants of the fort raised large breastworks around the base of the walls by piling up rock rubble against the bases.

This species lives almost exclusively on dry slopes, most often in rock rubble sheltered by bushes, usually on limestone, in Bulgaria up to elevations of 1800 m. Synantrope.

I tramped out of camp by headlamp behind Rob and Frank, wending between ice towers and piles of rock rubble to reach the main body of the glacier.

The small buildings of the mining facility were made of rock rubble from the mine shafts, but their doors were nothing more than hide flaps, and the Mardukan's exit had been silent.

Simochromis pleurospilus is a species of cichlid endemic to Lake Tanganyika where it is known to occur in rock rubble areas in the southwestern portion of the lake.

As they lurched their way among the washed-up debris, broken paving, and fallen rock rubble, Mitch nudged Keene's arm and pointed ominously in the seaward direction to their left.

Tons of limestone sheared off the northwest face of the landmark, leaving a dark trail of rock rubble in the snow, down a lower cliff face and onto the tree-covered slope below.

In 1994 the construction of a rock rubble weir on the Whangamarino River was commissioned by the Department of Conservation and the Auckland/Waikato Fish and Game Council.

Polar deserts are characteristically littered with rock rubble, frost-shattered from bedrock on the spot (lithosols) or redistributed, ground and compacted into pavements by glacial action, and re-exposed after the retreat of the ice sheets (regosols).

Wind-borne grit and ice erode antarctic basalt boulders at a rate of 1.5mm per year (Evteev, 1964), producing pavements of consolidated rock rubble with each fragment cut to a tricorn and wind-polished (Nichols, 1966).