Mount Dazhang Basalt Column Landscape
Reference work entry
This is a landform composed of large columns of basalt located in Fuding, Fujian Province. The exposed columns cover an area of 0.21 km 2and rise to elevations of 407–604 m. The height of the exposed columns reaches nearly 200 m, and all of the columns are either pentagonal or hexagonal. The columns are generally more than 60 cm in diameter, and they are regular and large. They are Neogene volcanic necks intruding into tuff of the Cretaceous Shimaoshan Formation. The rocks are mainly basalt that contains olivine mantle inclusions and brecciated lava with fine-grained allgovite and porphyritic allogovite. The columns in the central volcanic neck are composed of allgovite. This columnar joint landscape is comparable to that of Devils Tower in Wyoming, United States. It has important geological significance and aesthetic ornamental value. The Mount Dazhang basalt was originally mined from a large quarry. Chen Anze called for restrictions on quarrying activity to preserve the landscape of...
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