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Usually the direction of strike and dip can be determined easily with left hand rule. They also can be measured accurately with Brunton Compass. Parts of Brunton Compass explained by Figure 2:
 
Usually the direction of strike and dip can be determined easily with left hand rule. They also can be measured accurately with Brunton Compass. Parts of Brunton Compass explained by Figure 2:
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[[File:Brunton Compass.png|framed|center|Figure 2. The standard Brunton Compass<ref name=geo>http://www.geology.sdsu.edu/visualgeology/geology101/Geology101Labs/structureLab9.pdf</ref>]]
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[[File:Brunton Compass.png|framed|center|{{figure number|2|}}The standard Brunton compass<ref name=geo>http://www.geology.sdsu.edu/visualgeology/geology101/Geology101Labs/structureLab9.pdf</ref>]]
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Brunton Compass can be used for:
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Brunton compass can be used for:
 
* Measure strike and dip of planes
 
* Measure strike and dip of planes
 
* Measure trend and plunge of lines
 
* Measure trend and plunge of lines

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