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The toxic storm Noul caused the collapse of a limestone mountain in the park of the Ang Thong archipelago.
Date September 20, 2020 at 17:59
The toxic storm “Noul” made a limestone hill on a rocky island in Ang Thong National Park. 15-20% of the Revealed Island area is a limestone island that is approximately 260 million years old.
On September 20, 2020, Mr. Piyanunil, Head of Angthong Islands National Park, Koh Samui District, Surat Thani Province, revealed that limestone hill erosion and landslides were reportedly detected in the southwestern area of Koh Hin Taek on September 19, 20 ago, which had collapsed into the sea in a wide area about 15-20% of the area of the island. The investigation assumed it was caused by the displacement of shale and soil that had been eroded by heavy rains and strong wind waves from the Noul storm situation during the last 1-2 days that were in the public interest. that
From Koh Hin Taek geomorphological data Including all topographic features of the Ang Thong Islands It is part of the karst topography, which consists of a group of limestone mountains that form an archipelago in the Gulf of Thailand. The rock strata are classified in the limestone of the Middle Permian period, approximately 260 million years old, it is a limestone hill with knobby peaks. Because rainwater and water can dissolve limestone easily.
“Areas in general tend to include wells, caves and underground waterways that carry limestone infiltrates when there is heavy rainfall. And it flowed into those cracks Causing the rock mass to lose its stability Along with the weight and gravity of the earth Therefore, the limestone breaks and collapses, ”said Piya.
Mr. Piya said that the Ang Thong National Marine Park operation. Initially, surveillance officers were established to observe the situation because additional collisions could occur. And it will carry out a study of the condition of the damage and the size of the affected area for more information.
In this sense, there is an advertising notice not to approach the area to guarantee safety and prevent possible dangers.
Images of Angthong National Marine Park
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