A geological core is a cylindrical sample of rock or sediment extracted from the Earth’s subsurface. It is obtained using a drilling technique that allows scientists to study the layers of materials beneath the surface. These cores provide valuable information about the geological history, composition, and structure of the Earth, helping researchers understand processes like plate tectonics and climate change. Geological cores are essential for various fields, including geology, paleontology, and environmental science. By analyzing the core samples, scientists can identify fossilized remains, mineral content, and other features that reveal the conditions of the Earth over time. This information is crucial for resource exploration and environmental assessments.