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Earth of fire

Actualité volcanique, Article de fond sur étude de volcan, tectonique, récits et photos de voyage

Publié le par Bernard Duyck
Publié dans : #Excursions et voyages
  Volcanic Ark on Ly Son - photo Go Vietnam Tour

Volcanic Ark on Ly Son - photo Go Vietnam Tour

Little is said about volcanism in Vietnam. A recent article by Professor Nguyen Hoang, from the Japan National Science and Technology Institute, reveals that the island of Ly Son, located in the Quang Ngai province in central Vietnam, has experienced volcanic activity on two major periods, ranging from deep to shallow marine activity and aerian activity. Ly Son actually consists of three islands: Ly Son (Đảo lớn) , the largest and two smaller islands, Bo Bai (Đảo Be) and Hon Mu Cu.

The first period of activity was in 11-10 Ma, the second is dated about 1 Ma, and coincides with the activity to Ba Binh An and Lang Chau. Each eruption of lava formed of layers of different thicknesses, still visible today. The volcanic field occupies 70% of the surface of the island.

 

Ly Son and his craters on Google Earth / via Damien Becquart

Ly Son and his craters on Google Earth / via Damien Becquart

Ly Son - Stratification in Cau Cave - Vietnam Travel Photo Tips

Ly Son - Stratification in Cau Cave - Vietnam Travel Photo Tips

Ly Son - Cliff opposite the entrance of Hang Pagoda - photo Ly Son Tour

Ly Son - Cliff opposite the entrance of Hang Pagoda - photo Ly Son Tour

The relics of this volcanic activity are valued tourists landscapes : Cau Cave, Hang Pagoda, Duc temple, and a natural lava arch.

Hang Pagoda and the Duc temple are built inside caves formed by erosion in the cliffs. Hang Pagoda is located in a cave in the mountains Thoi Loi, the highest of the five peaks of the island; it measures 20 meters wide, 24 meters long and three meters high.

A geological park will enhance its recent status of natural museum of volcanic activity.


 

Ly Son - Thoi Loi mountain - photo Vietnam Guides

Ly Son - Thoi Loi mountain - photo Vietnam Guides

Ly Son - volcanic rocks on the sea front of  Bai Bo - photo Ly Son tour

Ly Son - volcanic rocks on the sea front of Bai Bo - photo Ly Son tour

The Ly Son Island is renowned for the production of garlic with a typical flavor, because of its culture on volcanic soil. This production of garlic and onion occupies one third of the island, which is the nickname of "the kingdom of garlic".

Source :

Vietnam breaking news  - 10 million years old volcano sedimentary cliffs on Ly Son island - link

 

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