In Geology this would be called an anticline.
syncline
syncline
canyon
When a body of rock bends upward into an arch, it is called an anticline. It is a type of fold in the Earth's crust where the oldest rocks are found at the core of the arch. Anticlines are often associated with the accumulation of oil and gas deposits.
folded mountain
A wedge-shaped stone placed at the apex of a masonry arch is called a keystone. During construction of the arch, the keystone is the final piece to be placed.
When a fold shape resembles an arch with the fold facing upwards, it is called an anticline. Anticlines are structural geologic features where the older rock layers are found in the center and the younger rocks are found on the outside.
A wedge-shaped brick or stone that forms an arch is called a "voussoir." The voussoir is typically tapered, allowing it to fit together with other voussoirs to create the curved structure of the arch. The central voussoir, known as the "keystone," is critical for distributing weight and maintaining the arch's stability.
An anticline is a convex fold in a rock structure.
The wedge-shaped stone in an arch that causes the rocks to lock together is called a keystone. It is positioned at the top center of the arch and helps distribute the weight evenly across the stones, ensuring the stability and strength of the arch.
The landform is called a laccolith. It forms when magma is injected between layers of sedimentary rock, causing the overlying layers to arch upward. As the magma cools and solidifies, it creates a dome-shaped uplift in the Earth's crust.
An upward fold in rock that forms an arch-like structure is called an anticline. It is a type of fold in the Earth's crust where the rock layers are bent upwards in a convex shape, with the oldest rocks located at the core of the fold.