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Trajectory mapping is mapping done by combining several observation points. Two things to be noted are: efficiency of trajectory direction and location selection of the observation point. Efficient track direction is the direction perpendicular to the common dip or perpendicular to the longitudinal axis of the fold or spreading of rock or lengthening morphology element. For more efficient, before go to field create a map of the distribution of the main road to the footpath and distribution of streams and valleys Find the intersection direction of the road and the river is approximately perpendicular / angular blunt with unit geomorphic boundary (relief : are allowed so synonymous with boundary of litology units). Plan a cut off point as stop site for observation. While in the field, there are some basic criteria that can be used to make the observation location:
 
Trajectory mapping is mapping done by combining several observation points. Two things to be noted are: efficiency of trajectory direction and location selection of the observation point. Efficient track direction is the direction perpendicular to the common dip or perpendicular to the longitudinal axis of the fold or spreading of rock or lengthening morphology element. For more efficient, before go to field create a map of the distribution of the main road to the footpath and distribution of streams and valleys Find the intersection direction of the road and the river is approximately perpendicular / angular blunt with unit geomorphic boundary (relief : are allowed so synonymous with boundary of litology units). Plan a cut off point as stop site for observation. While in the field, there are some basic criteria that can be used to make the observation location:
# a common contact / lithology boundary (don’t forget that the geological maps essentially is a map that illustrates the spreading direction contacts!)
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# a common contact-lithology boundary (don’t forget that the geological maps essentially is a map that illustrates the spreading direction contacts!)
 
# The point where the common boundary morphology is sharp (perhaps also the contact between rocks).
 
# The point where the common boundary morphology is sharp (perhaps also the contact between rocks).
 
# The place where the common structure (fault, stocky, folds, etc.)
 
# The place where the common structure (fault, stocky, folds, etc.)
# The point where (1) to (3) don’t exist but there are good outcrops / complete
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# The point where (1) to (3) don’t exist but there are good or complete outcrops
# The point where there is found positive geological potential and / or negative potential such as landslide, etc
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# The point where there is found positive geological potential and/or negative potential such as landslide, etc
 
# Point somewhere where possible morphological descriptions in the other direction (from a height in the direction of lower or of the plain towards the hills around
 
# Point somewhere where possible morphological descriptions in the other direction (from a height in the direction of lower or of the plain towards the hills around
 
# Points on a map that distance more than 2 cm from another point.
 
# Points on a map that distance more than 2 cm from another point.

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