#*#*#* Avoid the geological structure like a fault
#*#*#* Avoid the geological structure like a fault
#*#*# Before we use the Jacob stick, we should make sketch of bedding. It will help us to make the measurement efficiently.
#*#*# Before we use the Jacob stick, we should make sketch of bedding. It will help us to make the measurement efficiently.
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#*#*# Place the Jacob stick perpendicular with bedding. Use the clinometer to measure dip, so that Jacob stick can be perpendicular with the bedding. [[PIC 1]]
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#*#*# Place the Jacob stick perpendicular with bedding. Use the clinometer to measure dip, so that Jacob stick can be perpendicular with the bedding.
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#*#*# Every Jacob stick has 10 cm interval every red-white line. It’s used to measure the width of bedding. Keep place perpendicular with the bedding [[PIC 2]]
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#*#*# Every Jacob stick has 10 cm interval every red-white line. It’s used to measure the width of bedding. Keep place perpendicular with the bedding.
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<gallery mode=packed heights=300px widths=300px>
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File:UGM_Mapping_Photo_1.png|The Jacob staff should be perpendicular with the bedding (Source : Stratigraphy Principle mapping archive)