ir-ingr: Добыча серы на Восточной Яве
Sulfur mining in Kawah Ijen Lake
The Ijen volcano complex is a group of stratovolcanoes, in East Java, Indonesia. It is inside a larger caldera Ijen, which is about 20 kilometers wide. The Gunung Merapi stratovolcano is the highest point of that complex. The name of this volcano resembles that of a different volcano, Mount Merapi in central Java, also known as Gunung Merapi; there is also a third volcano named Marapi in Sumatra. The name "Merapi" means "fire" in the Indonesian language.













http://ir-ingr.livejournal.com/1148939.html
http://avaxnews.com/educative/Sulfur_mining_in_Kawah_Ijen_Lake.html