What is cross section map?
Cross-sectional maps show a side-view of a segment line drawn on a topographic map. A cross-section helps see how the terrain lies. Structural maps include features such as the type of rocks and geologic structures that are in an area.
What is subsurface mapping?
i. A map depicting geologic data or features below the Earth’s surface; esp. a plan of mine workings, or a structure-contour map of a petroleum reservoir or an underground ore deposit, coal seam, or key bed.
What is a lithofacies map?
A map which shows the distribution of different lithofacies for a particular stratigraphic interval or horizon (see stratigraphic column). Such maps may be interpreted to yield a palaeogeography or environmental interpretation for the mapped horizon. From: lithofacies map in A Dictionary of Earth Sciences »
What is the difference between isopach and Isochore?
An isopach map displays lines of equal thickness in a layer where the thicknesses are measured perpendicular to the layer boundaries. Isopach maps are also referred to as True Stratigraphic Thickness (TST) maps. An isochore map displays lines of equal thickness in a layer where the thicknesses are measured vertically.
What is lithofacies map?
What are the steps in drawing a cross section?
There are four steps when drawing a cross-section.
- Put a strip of paper along the cross-section and make a mark on your paper wherever the contour lines intersect with your paper.
- Take that strip of paper and put it on a clean piece of paper.
- Draw dots on the elevation lines defined by your strip of paper.
What is a PHIH map?
Phi – h (Porosity multiplied by thickness) map for the Abenaki 5 sequence derived from a geocellular model of the reservoir. Darker shades of gray are Phi – h highs.
Which map is used to describe subsurface rocks?
Geological maps are general maps depicting distribution of rock strata, structural data etc, while Stratigraphic plan views are expected to indicate sub-surface layers and would be depending upon data pertaining to vertical distribution of strata, which in turn would be depending upon bore hole data etc.