Japan Geoscience Union Meeting 2025

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[J] Oral

M (Multidisciplinary and Interdisciplinary) » M-IS Intersection

[M-IS10] Geopark

Mon. May 26, 2025 10:45 AM - 12:15 PM International Conference Room (IC) (International Conference Hall, Makuhari Messe)

convener:Takayuki Ogata(Graduate School of Engineering and Science, University of the Ryukyus), Tatsuto Aoki(School of Regional Development Studies, Kanazawa University), Marekazu OHNO(General Incorporated Association Mt.Chokai and Tobishima Island Geopark Promotion Council), Ryosuke Doke(Graduate School of Science and Technology, Hirosaki University), Chairperson:Ryosuke Doke(Graduate School of Science and Technology, Hirosaki University)

11:45 AM - 12:00 PM

[MIS10-11] Geotourism in Northern Vietnam from a Geomorphological Perspective

*Takayuki Ogata1 (1.Graduate School of Engineering and Science, University of the Ryukyus)

Keywords:karst landform, limestone, weathering, erosion, uplift, sea level change

Karst landscapes are extensively distributed across the northern provinces of Vietnam, where various geomorphological processes shape the landforms. The karst landforms in the two UNESCO Global Geoparks (Dong Van and Cao Bang) exhibit a combination of cone or tower karst and cockpit dolines, formed through the weathering and erosion of Paleozoic and Mesozoic limestone. Their steep slopes and cliffs indicate rapid decomposition, accelerated by high precipitation and active uplift. Ha Long Bay - Cat Ba Archipelago, a UNESCO World Natural Heritage Site, is distinguished by submerged tower and cone karst formations, shaped by post-glacial sea level changes. Trang An Landscape Complex, a UNESCO World Mixed Heritage Site, features karst landscapes influenced by post-glacial uplift. These landscapes provide an ideal setting for geotourism, allowing visitors to explore weathering, erosion, uplift, and relative sea level changes from the LGM (Last Glacial Maximum) to the Postglacial age. This study proposes a one-week geotourism program covering two UNESCO Global Geoparks and two UNESCO World Heritage Sites in northern Vietnam.