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The Geological Time Scale

THE GEOLOGICAL TIME SCALE While studying the physical geography of the earth, it is necessary to know The Geological Time Scale of the earth. The study of the geological time scale is necessary to every student of earth and other sciences. The development of the Earth has taken place over a period of billions of years. The evolution of life on earth is also a part of the Earth’s very long history. The age of the earth is also related to the age of the Solar System and the Milky Way Galaxy. From the Big-Bang, till today , the time frame of the Earth’s evolution is very extensive. The periods of remarkable development in the evolution of life, evolution of continents, evolution of ocean basins and their constituents are represented in the form of eras, periods, epochs and ages. The Geologic time is very vast and wide. The Geological Time Scale was constructed using the evidences collected from Field observations,,Fossil records, Stratigraphic correlations, Radioactive dating, Palaeomagnetic orientations, Orbital revolution of the Earth and The rotation of the earth. Several major incidences have happened in the history of the earth. Some of the major events like mass extinctions, appearance of new species or genera of life, mountain-building movements, drifting of continents, spreading of ocean floors,widespread glaciations, dominance of certain species, massive migration of life between land and waterare all considered while accounting the geologic time scale. The changes that occurred throughout the history of the earth stand in marked contrast to the orderly and uniform operation of natural systems. Early history differs in character from late history in the time scale used. Whereas the early history is described in billion-year units of time, the late geological time is described in million-year units of time. The recent time is described in 1000’s of year units. Experts attempted to reconstruct the Schedule of events of profound change in various aspects of the earth’s physical systems. Understanding of the geologic time scale is a basic necessity while studying the geography of the earth. In this episode, the following aspects of the Geologic Time Scale are highlighted: History of the time scale, Palaeozoic era,Mesozoic era,Cenozoic era, History of the Time Scale Everything we do is related to time. We are living in an age in which time and time measurement are extremely important. But, time is not just a feature or phenomenon of the present. Was the earth formed along with the Universe or at a later date? How long is the history of the earth? To answer all these questions, scientists have constantly tried and searched the clues and sequences on the Planet and studied the Solar System very meticulously. It is change that made us to know about time, and that has provided the basis for the measurement of time. The change may be a) An emergence or coming into existence of something new, b) The alteration of something that is already existing c) The disappearance (or) loss of something. The passage of time can be related to a series of events. In order to construct the history of past events, one must determine how much time elapsed between the events and how long it took for the events to occur. Time is also marked by certain characteristic or unique set of events. When we list the events in an order in which they took place, we establish a chronological sequence of all the events. The measurement of time is accomplished with two kinds of clocks known as mechanical clocks and natural clocks. Our wall clock (or) our wrist watch is a mechanical clock. There are several kinds of natural clocks and calendars used to refer the events of the past to the present. For understanding the past geological events, geologic clocks were used. They are: Radioactive clocks (or the atomic clocks) and Stratigraphic units correlated with Fossil population. Radioactive disintegration is an accurate phenomena to find out the date of earth’s naturally occurring materials. Pc Geo Kimberlite    / @pcgeokimberlite2947   The Geological Time Scale, Geological Time Scale, Milky Way Galaxy, Big Bang theory, Field observations, Fossil records, Stratigraphic correlations, Radioactive dating, Palaeomagnetic orientations, Orbital revolution of the Earth, The rotation of the earth, Earth, History, History of the time scale, Palaeozoic era, Mesozoic era, Cenozoic era, mechanical clocks, Natural clocks, Solar System, Radioactive clocks, Stratigraphic units, half-life, geological time scale#, geological time scale in hindi#, geologytime scale#, geological time scale of earth#, the geological time scale#, what is geological time scale#, geological time scale and fossils#, geographical time scale trick#, how to remember geographical time scale#, geographical time scale made easy#, PC Geo Kimberlite, Geological Time Scale# Geological Time Scale Mnemonics#, Learn Geological Time Scale in 5 minutes,