Tengchong Volcanoes and Thermal Sea

Overview

Attractions

Scenic Video

Dakong Mountain

Summary Description

Dakong Mountain is a flat-topped conical volcano with an elevation of 2,080 m, a diameter of 650-720 m at the bottom, a crater diameter of about 200 m, a relative height of 100 m, and a crater depth of 50 m. There are 597 steps of stone stairs for going up and 598 steps for going down the mountain, which means “七上八下(seven up and eight down)” in Chinese.

Classification

Attractions

Keywords

Dakong Mountain,conical volcano, lava ridge,lava sheet

Attractions

　　The northern side of the volcanic cone has the remains of a small crater, and the southern side of it has a lava outlet and lava ridge near the bottom. Dakong Mountain has experienced two major eruptions: The first was a quiet eruption happening about 360,000 years ago, and the second was an explosive eruption happening about 250,000 years ago, forming volcanic debris rocks showed as rhyolite, volcanic bombs, pumice stone and so on. During the eruption, olive basaltic lava flowed out over a large area in all directions to form a lava sheet, and the central crater was preserved as a hollow volcanic cone composed of basaltic scoria, volcanic bombs and lava masses.