10 Interesting Facts about Geology


Do you know  the10 Interesting Facts about Geology?Geology (from the Ancient Greek γῆ, gē (“earth”) and -λoγία, -logia, (“study of”, “discourse”) is an earth science concerned with the solid Earth, the rocks of which it is composed, and the processes by which they change over time. Geology can also refer to the study of the solid features of any terrestrial planet or natural satellite such as Mars or the Moon. Modern geology significantly overlaps all other earth sciences, including hydrology and the atmospheric sciences.

Let`s see the 10 Interesting Facts about Geology.

 

Facts about Geology 1: The Structure of the Earth

The internal structure of the Earth is layered in spherical shells: an outer silicate solid crust, a highly viscous asthenosphere and mantle, a liquid outer core that is much less viscous than the mantle, and a solid inner core

Facts about Geology 2: The Age of the Earth

                 The Age of the Earth

 

The age of the Earth is 4.54 ± 0.05 billion years (4.54 × 109 years ± 1%). This age may represent the age of the Earth’s accretion, of core formation, or of the material from which the Earth formed.

Facts about Geology 3: Plate Tectonics

Plate tectonics is a scientific theory describing the large-scale motion of seven large plates and the movements of a larger number of smaller plates of the Earth’s lithosphere, since tectonic processes began on Earth between 3 and 3.5 billion years ago

Facts about Geology 4:The Evolutionary History of Life

The evolutionary history of life on Earth traces the processes by which living and fossil organisms evolved, from the earliest emergence of life to the present.

Facts about Geology 5: Quaternary Geology

Quaternary geology is the branch of geology that study developments from 2.6 million years ago onwards

Facts about Geology 6: Hadean Eon

                        Hadean Eon

 

The Hadean is a geologic eon of the Earth pre-dating the Archean. It began with the formation of the Earth about 4.6 billion years ago and ended, as defined by the ICS, 4 billion years ago

Facts about Geology 7: Late Heavy Bombardment

The Late Heavy Bombardment is an event thought to have occurred approximately 4.1 to 3.8 billion years (Ga) ago, at a time corresponding to the Neohadean and Eoarchean eras on Earth.

Facts about Geology 8:The Cambrian Explosion

The Cambrian explosion or Cambrian radiation was an event approximately 541 million years ago in the Cambrian period when most major animal phyla appeared in the fossil record. It lasted for about 20–25 million years and resulted in the divergence of most modern metazoan phyla. The event was accompanied by major diversification of other organisms.

Facts about Geology 9: Permian-Triassic Extinction

The Permian–Triassic extinction event, colloquially known as the Great Dying, the End-Permian Extinction or the Great Permian Extinction, occurred about 252 Ma ago, forming the boundary between the Permian and Triassic geologic periods,with the occurance of  90% of all land animals die;

Facts about Geology 10: Cretaceous–Paleogene Extinction

 

         Cretaceous–Paleogene Extinction

The Cretaceous–Paleogene (K–Pg) extinction event, also known as the Cretaceous–Tertiary (K–T) extinction, was a sudden mass extinction of some three-quarters of the plant and animal species on Earth, approximately 66 million years ago. With the exception of some ectothermic species such as the leatherback sea turtle and crocodiles, no tetrapods weighing more than 25 kilograms (55 lb) survived. It marked the end of the Cretaceous period and with it, the entire Mesozoic Era, opening the Cenozoic Era that continues today

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