👉 Lithospheric is a geological term referring to the layer of rock below the ocean floor, which is primarily composed of basaltic and other igneous rocks. This layer covers an area approximately 10,000 miles (16,000 kilometers) across the Earth's surface. The lithosphere is divided into three main layers: the topmost layer, called the mantle, is made up mostly of solid rock; the middle layer, known as the crust, is
