Notes and Study material for Exams
Unveiling the Mysteries of the Deep: A Journey into Oceanography The Earth, a vibrant tapestry of life and landscapes, holds within its embrace a vast and enigmatic realm â the ocean. Covering over 70% of our planet’s surface, this watery expanse is a cradle of biodiversity, a regulator of climate, and a source of countless … Read more
Epeirogenic Processes: Shaping the Earth’s Surface Through Gradual Uplifts and Subsidence The Earth’s surface is a dynamic landscape, constantly evolving under the influence of various geological forces. While dramatic events like volcanic eruptions and earthquakes capture our attention, there are also slow, gradual processes that shape the Earth’s topography over millions of years. One such … Read more
The Majestic Rise of Fold Mountains: A Journey into Earth’s Wrinkles The Earth’s surface is a tapestry of diverse landscapes, sculpted by the relentless forces of nature. Among these, fold mountains stand as majestic testaments to the planet’s dynamic history. These towering ranges, characterized by their distinctive folded structures, are a product of immense pressure … Read more
The Earth’s Fury: A Look at Earthquakes and Volcanoes The Earth, our seemingly stable home, is a dynamic and restless planet. Beneath its surface, immense forces are constantly at play, shaping landscapes and unleashing powerful natural phenomena. Among these, earthquakes and volcanoes stand out as dramatic reminders of the planet’s raw power. These events, while … Read more
Slow Movements: Unveiling the Earth’s Unseen Symphony of Diastrophism The Earth, a seemingly static and unchanging sphere, is in fact a dynamic and restless entity. Beneath the surface, a symphony of slow, powerful movements plays out, shaping the planet’s landscapes and influencing life as we know it. These movements, collectively known as diastrophism, are the … Read more
Most of the knowledge we have about Earth’s deep interior comes from the fact that seismic waves penetrate the Earth and are recorded on the other side. Earthquake ray paths and arrival times are more complex than illustrated in the animations, because velocity in the Earth does not simply increase with depth. Velocities generally … Read more
Orogenic or the mountain-forming movements act tangentially to the earth surface, as in Plate tectonics. Tensions produces fissures (since this type of force acts away from a point in two directions) and compression produces folds (because this type of force acts towards a point from two or more directions). In the Landforms so produced, … Read more
Beginning of the Universe started about 13.6 billion years ago,when the Big Bang created the universe from a point source. During this process, Light Elements, like H, He, Li, B, and Be formed. From this point in time, the universe began to expand and has been expanding ever since. Concentrations of gas and … Read more
The uppermost outer solid and rigid layer of the earth is called crust. Its thickness varies considerably. It is as little as 5 km thick beneath the Oceans at some places but under some mountain ranges it extends upto a depth of 700km. Below the crust denser rocks are found, known as mantle crust. … Read more