VietNamNet Bridge - With the support of Japanese scientists, Vietnam has discovered the largest volcano cave system in Southeast Asia with a length of 25 km in Dak Nong province, in the Central Highlands.

This is the result of a geological study in Dak Nong since 2007 by a group of scientists from the Geological Museum of Vietnam and Japanese scientists.

Over seven years, the group found dozens of volcano caves in the basalt in this region with a length of about 25 km, stretching from the crater in Choar Village, and running along the river of Serepok to the Dray Sap waterfall.

The experts examined in detail three caves and discovered a large volcanic cave of more than one kilometer in length, which was tentatively called C7.

"According to Japanese scientists, this is the largest volcanic cave system in Southeast Asia," said Mr. Nguyen Van Thuan, head of the General Department of Geology and Mineral.

Thuan said inside the cave of thousands of meters wide are unique structures that are scientifically valuable. There are many structures caused by the eruption of lava, lava flow and the ruins of plants and the hardening process of basalt lava millions of years ago.

"The relevant units will combine to design a plan to ask for recognition of this volcano cave system as a global geological park," he said.

The General Department of Geology and Mineral will widely publish the results on Dec. 26 to seek funding for further research.

S. Tung