用columnar joint造句子，“columnar joint”造句

Penghu Islands, mainly composed of basalts, enjoy well-developed columnar joints that create many dramatic geological and landscape types of scenery.

A Study of Structure and Structural Plane Fractal of Basalt Rock Mass with columnar joints

The round columnar joints show that the basic dyke has rheological behaviour of the viscous shearing in magma emplacement.