The rocks which make up the island are volcanic tuff and lava, together with marine limestone of the mid-Devonian period.
22.
In most cases, especially in India, the sculptures were carved out of " soft " rock like basalt or volcanic tuff.
23.
Deformation bands are present in a variety of porous rock types such as sandstones, limestones, siltstones, poorly welded volcanic tuffs, and breccias.
24.
Rocky ridges are visible in the Eastern part of the village outcrops of volcanic tuff ( Greenstone rocks ) Silurian system.
25.
Cappadocian underground cities were built thousands of years ago out of volcanic tuff, and are likely to survive for centuries to come.
26.
Multistory dwellings at Bandelier : Rock wall foundations and beam holes and " cavates " carved into volcanic tuff remain from upper floors.
27.
The reaction heated the ash to such extreme temperatures that it left behind a " volcanic tuff, " devoid of all organic materials.
28.
"' Nu'utele "'is an island which consists of a volcanic tuff ring situated 1.3 km off the eastern end of Upolu island, Samoa.
29.
In 1589, by the decree of the " Superior Govierno ", a church made up mainly of adobe ( volcanic tuff ) was built.
30.
The volcanic tuff at Yucca Mountain is appreciably fractured and movement of water through an aquifer below the waste repository is primarily through fractures.
