- published: 24 Feb 2014
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Historical geology is the use of the principles of geology to reconstruct and understand the history of the Earth. It focuses on geologic processes that change the Earth's surface and subsurface; and the use of stratigraphy, structural geology and paleontology to tell the sequence of these events. It also focuses on the evolution of plants and animals during different time periods in the geological timescale. The discovery of radioactivity and the development of a variety of radiometric dating techniques in the first half of the 20th century provided a means of deriving absolute versus relative ages of geologic history.
Economic geology, the search for and extraction of energy and raw materials, is heavily dependent on an understanding of the geological history of an area. Environmental geology, including most importantly the geologic hazards of earthquakes and volcanism, must also include a detailed knowledge of geologic history.
Nicolaus Steno, also known as Niels Stensen, was the first to observe and propose some of the basic concepts of historical geology. One of these concept was that fossils originally came from living organisms. The other, more famous, observations are often grouped together to form the laws of stratigraphy.
Historical Geology Principles
Historical Geology part 1 of 10
Historical Geology part 2 of 10
Historical Geology Part 3 of 10
Historical Geology Part 5 of 10
The Geological Periods of Earth
Introduction to Historical Geology
Introduction to Historical Geology
The History of Earth (HD - 720P)
History of Geology Notes