Geological values of lava caves in Krongno Volcano Geopark, Dak Nong, Vietnam

Abstract

The paper presents the initial results of the study of volcanic eave: system and its typical information, in Krongno Volcano Geopark (KVG). Dak Nong, Vietnam. The volcanic eaves been discovered since 2007, under UNESCO sponored thc scientific project, are seen as unique geological heritages. The collaborative surveys and studies between Vietnamese geologists and the members of the Non-Profit Organization. Vulcnospeleological Society of Japan have discovered and surveyed 45 caves, and detailed mapping 20 caves. Using a complex of adequate methods, especially Remote Sensing image interpretation method. Surveying and mapping lava cave methods, K/Ar dating isotopie analytical method and Current methodology, the studies aim to affirm endogenous origin of the lava cave system, the formation mechanism, as well as the typical formation of the caves. Up to date, the lava caves and interior formation in lava caves in KVG have been examined and evaluated in term of geological nature and recognized as pillar geological heritages of the Geopark.