type section

A type section is a specific, well-studied location that serves as the official example for a particular geological formation. It’s like a reference point that helps geologists identify and compare similar rocks or layers in other areas. The type section provides detailed descriptions and samples, ensuring consistency and clarity when discussing that formation worldwide. Essentially, it’s the standard or “go-to” site that defines what a particular rock formation looks like, enabling scientists to communicate accurately about Earth’s history and surface layers.