文档介绍：REVIEW
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
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
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- 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 the Stratigraphic symbols.
6 Color the section and the legend (use the chromatogram of strata)
7 Title, horizontal scale, orientation of the section
Chromatogram of Strata
Quarternary
Neogene
Paleogene
Cretaceous
Jurassic
Triassic
Permian
Carboniferou
Devonian
Silurian
Ordovician
Cambrian
Sinian
Mesoproterozoic
Paleoproterozoic
Archaean
marl
shale
sandstone
limestone
thin
limestone
Red
water
river
A-B SECTION
Red Water
River
LEGEND
Jianfeng
Jianfeng
conglomerate
mudstone
marl
limestone
shale
sandstone