asphalt -- A dark bituminous substance found in natural beds. Residue from petroleum distillation.
autochthonous -- Refers to something formed in its present location. Antonym of allochthonous.
A sandstone that contains asphalt within its pore spaces.
Talus:
An accumulation of angular rock debris at the base of a cliff or steep slope that was produced by physical weathering.
Tectonics: ...
In Band 7 (IR), the central areas of these metropolitan complexes are in dark tones, owing largely to the prevalence of asphalt streets and dark (usually asphalt) roofs, together with few trees and little other vegetation.
Show hard surface runways (concrete or asphalt) and tarmacs with a solid line
Show loose surface runways with a broken line
Runway surfaces are to be determined from the Canada Flight Supplement
Show legal boundaries from airport plans ...
For example, if a complex formula is used to calculate the tonnage of asphalt from a plan area measurement, this formula becomes an integral part of the asphalt pay item. When the inspector records the final measurements, the same formula is applied.
It is necessary to anticipate any construction that might occur in the area. Frequently, marks that are set in asphalt surfaces are paved over periodically.
Roof types for these structures, such as asphalt shingle, clay tile or wood shake, have also been successfully identified on high-resolution satellite imagery, which may be a critical element of a structural hazard assessment.
A large parking lot with gravel over asphalt provided the ideal proving grounds for these tests. The inconsistent surface provided varying friction in the range of 0.4 to 0.6 and therefore presented a control challenge.
[edit] Terrestrial albedo
Sample albedos Surface Typical
Albedo
Fresh asphalt ...
tar sand A sand containing tar or asphalt, from which the hydrocarbons may potentially be extracted by distillation.
tarn A lake in the bedrock basin of a cirque.
For example, for a road feature class, the numbers 1, 2, and 3 might correspond to three types of road surface: gravel, asphalt, and concrete. Codes are stored in a geodatabase, and corresponding values appear in an attribute table.
 See also: Surface, Information, Map, Class, Feature
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