Bitumen is a term used for natural deposits of oil " tar ", such as at the La Brea Tar Pits.
12.
Chile had been a major ( and almost unique ) producer of natural deposits such as sodium nitrate ( caliche ).
13.
Natural deposits of asphalt / bitumen include lakes such as the Pitch Lake in Trinidad and Tobago and Lake Bermudez in Venezuela.
14.
Three hundred people worked within the of excavated space, below ground, extracting salt from a natural deposit for use as road salt, table salt, and in industry.
15.
:: I don't know how it is classified, but it is possible to find natural deposits of metallic iron ( typically as micron to millimeter sized grains ).
16.
Sediment is a natural deposit of particles or materials e . g . rocks, soils, that are broken down because of natural causes e . g . erosion, weathering.
17.
Treasure does not include unworked natural objects, or minerals extracted from a natural deposit, or objects that have been designated not to be treasure by the Secretary of State.
18.
Pasturelands and mountain ranges, the presence of natural deposit and mineral resources like gold, silver, copper, chromate and iron are all God s blessings for the Tuboranon to this very day.
19.
Natural deposits such as so called'clitter agglomerates', morains can also on occasion look rather similar to groups of clearance cairns, but their context, position and regular form usually betrays their true origins.
20.
For example, a person who owns a property on a river delta also takes ownership of any additional land that builds up along the riverbank due to natural deposits or man made deposits.
