REVIEW
REVIEW
RULES OF‘VS Traces of dipping layers that intersect uneven ground or topography Left hand side: Map view of layer in stream valle Right hand side: Cross section view of dipping layer. (after Marshak and Mitra laboratory manual
RULES OF ‘VS’ Traces of dipping layers that intersect uneven ground or ‘topography’. Left hand side: Map view of layer in stream valley. Right hand side: Cross section view of dipping layer. (after Marshak and Mitra laboratory manual.) 11
LECTURE 5 CONSTRUCTION OF VERTICAL SECTION
LECTURE 5 CONSTRUCTION OF VERTICAL SECTION
CONSTRUCTION OF VERTICAL SECTION 1 Select the location of the section and draw a section line(usually perpendicular to the strike of the main structures), right-hand end is its more easterly end 2 Draw a topographic profile along the line of section. Determine the base line on the squared paper and draw a vertical scale line at each end. The base line usually locates at 1-1.5 cm lower than the lowest point along the line. 3 Add the structural data to the topographic profile. Data on either side of the section line may be projected to the section. Note to use apparent dip
CONSTRUCTION OF VERTICAL SECTION 1 Select the location of the section and draw a section line (usually perpendicular to the strike of the main structures), right-hand end is its more easterly end 2 Draw a topographic profile along the line of section. Determine the base line on the squared paper and draw a vertical scale line at each end. The base line usually locates at 1-1.5 cm lower than the lowest point along the line. 3 Add the structural data to the topographic profile. Data on either side of the section line may be projected to the section. Note to use apparent dip
CONSTRUCTION OF VERTICAL SECTION 4 Extrapolate the surface data downward into the underground 5 legend 5 Fill lithologic symbols to indicate different rock units. Label the Stratigraphic symbols 6 Color the section and the legend(use the chromatogram of strata) 7 Title. horizontal scale, orientation of the section
CONSTRUCTION OF VERTICAL SECTION 4 Extrapolate the surface data downward into the underground. 5 legend 5 Fill lithologic symbols to indicate different rock units.Label the Stratigraphic symbols. 6 Color the section and the legend (use the chromatogram of strata) 7 Title, horizontal scale, orientation of the section