Theory and Evidence of Seafloor Spreading

seafloor-spreading

The Theory of Seafloor Spreading Seafloor spreading is a geologic process where there is a gradual addition of new oceanic crust in the ocean floor through a volcanic activity while moving the older rocks away from the mid-oceanic ridge. The mid-ocean ridge is where the seafloor spreading occurs, in which tectonic plates—large slabs of Earth’s lithosphere—split … Read more

The Rock Cycle: Igneous, Sedimentary, and Metamorphic Rocks

mountain-climbing-rock

What is a Rock? Rocks ordinarily lie everywhere on the ground of the earth. They constitute most of the landforms, as we often notice. For instance, rocks make up the mountains and most of the non-water portions of the earth’s surface. A rock is hence defined as a solid naturally occurring mass or lumps of … Read more

What is the Pacific Ring of Fire and What are Major Causes of it

volcanic-eruption-pacific-ring-of-fire

What is Pacific Ring of Fire? The Pacific Ring of Fire is the terminology given to a u-shaped area that is almost forming a ring or a circle in the Pacific Ocean expanding all the way from South America and North America to Eastern Asia, New Zealand and Australia. The stretch is approximately 40,000 kilometers … Read more

Types and Principles of Plate Tectonics Boundaries

folded-strata-plate-tectonics

What is Plate Tectonics? Plate tectonics defines the movements and features of the Earth’s surface now and in the past. The theory of plate tectonics was advanced in the 1960s and 1970s to generate new information about the Earth’s ancient magnetism, the nature of the ocean floor, the flow of heat from the Earth’s interior, … Read more