A Synform fold or Syncline.
fold
Becuase 5-fold, 7-fold, 8-fold or any other higher-fold crystal's structure (shape) is based on the geometric arrangement of atoms, so can not completely fill the space.
Syncline is a type of fold that is created when the crust bends and curves downward. It is a fold that is convex up and has its oldest beds at its core.
A syncline is a downward curving fold in a rock formation, where the strata dip toward the center of the structure. An anticline is an upwardly curving fold, with the strata rise upward toward the center of the structure.
fold mountain
An anticline is a convex fold in a rock structure.
fold
The 3D shape or fold.
a fold mountain
Becuase 5-fold, 7-fold, 8-fold or any other higher-fold crystal's structure (shape) is based on the geometric arrangement of atoms, so can not completely fill the space.
In Geology, using Ramsay's classification scheme for folds, a "parallel fold" is a type 1B fold.
because it may be sturctural trap of oil
A syncline is a downward curving fold in a rock formation, where the strata dip toward the center of the structure. An anticline is an upwardly curving fold, with the strata rise upward toward the center of the structure.
Syncline is a type of fold that is created when the crust bends and curves downward. It is a fold that is convex up and has its oldest beds at its core.
The Himalayas are Fold Mountains
The appalachain mountains are fold mountains
Fold papaer on half