In the 1950s, undersea mapping shattered the myth that ocean floors were flat and featureless. Instead, scientists discovered rugged landscapes with vast mountain chains and deep trenches. đ Key Observations from Seafloor Mapping: These discoveries set the stage for Harry Hess’ revolutionary theory of Seafloor Spreading in 1960. đ What is Seafloor Spreading? Harry Hess…
Arthur Holmes proposed this theory to explain the origin of major relief features of the Earthâs surface, such as mountains, ocean basins, and continents. Holmes believed that the Earthâs interior was dynamic, and convection currents within the substratum were responsible for the movement of continents and landforms. Key Concepts of Holmesâ Hypothesis 1. Source of…
Letâs go back millions of years ago, to a time when the world as we know it didnât exist. No seven continents. No Himalayas, Alps, or Andes. Just two massive landmassesâLaurasia in the north and Gondwanaland in the southâsitting near the poles like two giant puzzle pieces on a globe in the cretaceous period. Now,…
Imagine you are an explorer, setting out on a journey not across the surface of the Earth but deep inside it. You start at the very ground beneath your feet and begin descending layer by layer, uncovering the hidden secrets of our planetâs interior. Letâs embark on this fascinating expedition together! From seismic studies, we…
Let’s embark on a journey to the very heart of our planet! Imagine standing on the vast plains of India, feeling the ground beneath your feet. It seems solid, unshakable. But what if I told you that deep beneath us, the Earth is in constant motion, whispering secrets through seismic waves? These waves are like…
Imagine holding a rock in your handâit looks solid, unchanging. But in reality, itâs just one stage in a never-ending journey of transformation, much like how water changes between ice, liquid, and vapor. This continuous process of rocks changing from one form to another is called the Rock Cycle, and itâs been shaping the Earth…
Metamorphic Rocks: The Story of Transformation Imagine you are walking through the Himalayas, standing on the rugged cliffs of Ladakh, feeling the crisp mountain air. Beneath your feet, the rocks are not just ordinary stonesâthey are witnesses to an extraordinary transformation that has taken place over millions of years. These are metamorphic rocks, the âphoenixâ…
Journey Through the World of Sedimentary Rocks Imagine you are standing on the banks of the Ganges River in Varanasi, watching the water gently carry away bits of soil, sand, and pebbles. Now, trace their journey. These small particlesâeroded from the Himalayasâwill travel thousands of kilometers, getting deposited along the way in riverbeds, deltas, and…
Understanding Geomorphology: A Journey Across Earth’s Landscapes Imagine yourself standing on a high mountain peak, gazing down at the vast plains, winding rivers, and deep ocean basins. Have you ever wonderedâhow did these landforms come into existence? What forces shape our planetâs surface? Welcome to the world of Geomorphologyâthe science that studies Earth’s surface features…