geotechinical engineering & Geographic Information Sysytem

Tectonics and Crustal Evolution

Tectonics is the process that controls the structure and properties of the Earth's crust and its evolution through time. In particular, it describes the processes of mountain building, the behavior and growth of the strong, old cores of continents known as crotons, and the also provides a framework for understanding the volcanic belts  and earthquake that directly affect much of the global population. These Tectonic studies are important as guides for economic geologists searching for ore deposits of metallic and nonmetallic resources and fossil fuels. An understanding of tectonic principles is fundamental to geomorphologists to explain erosion patterns and other surface features of Earth. The crust is the archive of Earth’s history. Its rock unit’s record events that is heterogeneous in time with distinctive peaks and troughs of ages for igneous crystallization, continental margins, metamorphism, and mineralization. This temporal distribution is argued largely to reflect the different preservation potential of rocks generated in different tectonic settings, rather than fundamental pulses of activity, and peaks of ages are linked to the timing of supercontinent assembly. Elemental data and Isotopic from zircons and whole rock crustal compositions suggest that the overall growth of continental crust has been continuous throughout Earth’s history. A decrease in the rate of crustal growth ca. 3.0 (GA) is related to increase recycling associated with the onset of plate tectonics.