Geology is a subspecialty of geography that relates to the study of various minerals present in the earth’s crust, their properties and different geological eras. Briefly, geology, like all other branches of science, needs accurate data and research for proper study. Moreover, the teachers have to discover innovative techniques for delivering lectures in the class. Thus, they demonstrate geological maps so that students can understand the lessons.
Geological maps are exclusively designed to represent geological features. They follow a special color code to represent different areas and structures. The older rocks and regions are shown with darker shades and, a lighter shade is used for representing newly formed rocks. Different colors are used to express different types of rocks. Other three dimensional orientations like faults, folds, lines and foliations are shown using “dips”, “strikes”, “trends” and “plunges”.
Contour lines are used for illustrating the sub surface strata and other stratigraphic units. If you want a clear illustration, you should check out Isopach maps that clearly represent variations in thickness. Thus, geological maps play an important role in a geological survey.
In this context, I’d like to describe geological survey. Geological survey is a kind of experiment or study, conducted in different regions, on significant geological features. The results of this survey are recorded in the form of databases that are stored and maintained by the geological department of every country. This geographic information is of vital importance in geosciences research and, plays an important role in the progress of a country, in terms of wealth and health.
If you want to access this geographic information, you can check out the official geological website of your country. Moreover, online databases and websites also provide you data and maps pertaining to different regions. But, you must be careful while using this data. Not all websites provide accurate information.
Using this geographic information, the geologists are able to determine the structure and stratigraphy of a particular area. Besides, they can predict natural hazards like landslides, earthquakes and floods etc. Lastly, they help us in determining the location of mineral resources, fossil fuels and the level of underground water.
Thus, geographic information can be used for understanding the history of a country, for hazard management, mining, planning construction and, for agriculture. If you want more details associated with this topic, you can flick through geography magazines or, check out online encyclopedias as well!