anticlinorium

An anticlinorium is a geological term describing a large-scale anticline, which is an arch-like fold in stratified rocks. This major fold is characterized by the presence of smaller folds, known as anticlines and synclines, superimposed upon it. Essentially, it's a series of these smaller folds grouped together to form a larger arch shape. This contrasts with a synclinorium, which is a large syncline (a trough-like fold) with smaller folds on it. Folds in the Earth's crust are undulations in rock layers that were originally deposited horizontally. These can vary greatly in size and are formed by various geological forces.12