Understand The Topographic Features Of Earth Using Geological Maps

Geologists are experts who study different areas of the Earth for locating the origin, characteristics, and composition of different rock substrates. The results of their analysis are organized in the form of geological maps that help us in locating natural sources of petroleum, gas, mineral as well as water that are located inside the earth crust. Geological mapping was initially introduced in United States in 18th century. Currently, many geological survey bodies have opened up in different parts of the world.

Geological maps offer details on water bodies, roadways, forest areas as well as land contours too. They include shaded regions, lines and symbols for showing elevations, earth surfaces, recreational features, routes and other structures. They’re also known as topographical sheets. Three dimensional maps are used by travel authorities and construction organizations for organizing trips or, for construction purposes.

Drawing geological maps is an easy but time-consuming activity. Geography students are well trained in this aspect. For drawing a map, you should get a pre-made topographical map of the selected region. Locate the prime rocks present in that location and shade the areas with diverse tones, on the paper. You can use different colors to symbolize the level of decomposition of soil.

Now, using a compass and a protractor, evaluate the dips as well as elevations of various regions and, evaluate the inclination of surface and represent them in degrees. After that, sketch contour lines on the paper and allocate a perpendicular symbol in the middle of a line. Label the symbol and allocate the degree of dip. Finally, perform a research of that region and use unique icons for symbolizing artificially constructed constructions such as homes, puddle, colleges etc.

Whilst examining the geological maps of Central Asia, you’ll find an interesting region recognized as South Caspian Basin, situated around the Caspian Sea, in the region of Azerbaijan, Turkmenistan and north Iran. The most fascinating feature here is Upper Pliocene in the South Caspian Basin. It’s a place that comprises of natural oil and gas sources which are believed to be over 150 years old. Chief natural supplies were developed in the lacustrine deposits of upper and middle Pliocene age.

These natural supplies were produced because of side compressions between the Eurasian and the Arabian plates in past. Due to this, Upper Pliocene in the South Caspian Basin encompasses natural resources that decomposed to from 70% natural gas resources, sixty five percent petroleum stores and low sulfur remains. It’s the main oil and gas transporting location in central Asia!

Due to lateral compressions between Eurasian and Arabian plates, Upper Pliocene in the South Caspian Basin, Central Asia encloses natural matter that decomposed to from 70% gas reserves, 65% oil reserves and low sulfur deposits. It is an important region described in most of the geological maps. For more information on this topic, please log on to our website.

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