The document discusses geological maps and how to read them. It explains that geological maps show rock formations and structures like folds and faults. Topographic maps use contour lines to represent elevation and terrain. Contour maps translate the three-dimensional surface of the earth into two dimensions. Reading geological maps provides insight into the geological structures and history of an area.
3. Geological map is a map showing the rocks,
(usually in units called formations) that crop
out surface of the earth in specific area.
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4. Shows geological features
Shows geological structures
Relative ages of rocks
Contacts between various rocks
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5. A topographic map is one which shows
configuration of land surface with the help of
contours
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6. Contour or contour line is line on map which
has the same elevation above the sea level
along the entire length
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7. V that point up valley
Near upper part of hills form
closure
Widely spaces on gentle
slopes and closed spaced for
steep slopes
Do not cross each other
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8. Contour map is a geological means of
representing the earths three-dimensional
surface into two-dimensions
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22. A geological map provide the key for
understanding the
Geological structures
(From two dimensions to three dimension)
Geological history of a particular region
(Age of rocks)
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23. Principles of geology by K.M Banger
Geological structures and maps-A Practical
Guide-by Richard Lisle
Youtube.com
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