Normally the rock lacks coherence and weathers into sand down to 6 m and even unweathered rock can be crushed to sand easily.
12.
The shales are generally brown with a greenish tinge in fresh, unweathered exposures; upon weathering they develop a variety of colors.
13.
They can be distinguished by cutting an unweathered splinter and burning it : karri burns completely to a white ash, whereas jarrah forms charcoal.
14.
In their unweathered state, both rock types are impervious hence poor aquifers, but they provide a valuable resource for road and building construction.
15.
If you want to keep the wood new looking and unweathered, apply one coat of CWF ( Clear Wood Finish ), sold in paint stores.
16.
On most natural cobbles or nodules of source material, a weathered outer rind called a "'cortex "'covers the unweathered inner material.
17.
Within saprolite, spheroidal weathering often creates rounded boulders, known as " corestones " or " woolsack ", of relatively unweathered rock.
18.
A major flood in 1974 eroded unweathered granite from an unlined spillway discharge channel which then resulted in the destruction of a penstock to the Burrinjuck Power Station.
19.
Termites, for example, may burrow downward many meters into weathered and unweathered parent material to collect moist soil for constructing their surface mounds ( termitaria ).
20.
Extensive remedial efforts are required to isolate both unweathered sulfides and soluble metal salts in the open-pit area and mine-waste piles from weathering and dissolution .
