10 Questions
True or false: Synthetic cross sections have no direct data to constrain the position of contacts and features.
True
True or false: Cross sections with no direct well control are called projected cross sections.
True
True or false: Anchored cross sections intersect one or more wells and have a degree of direct well control.
True
True or false: Well-to-well cross sections correlate multiple wells.
True
True or false: Pinned cross sections are linear profiles that intersect one or more wells.
True
What type of subsurface map displays the elevation of a particular rock layer or geologic marker in space?
Structure contour map
What do the contours on a structure contour map represent?
Subsurface structural surface
What are the values used in contouring on a structure contour map?
Depths or elevations referred to a datum surface
In what practical applications are geologic structure-contour maps used?
Searching and exploring for oil or minerals
What is the source of data used in constructing a structure-contour map?
Geological surveys, drilling of holes, mining, or geophysical investigations
Test your knowledge of interpreting subsurface outcrop cross sections, including identifying well-constrained and poorly constrained sections, and projecting contacts and structural trends using nearby data.
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