description Ijen maar (East Java) Overview
Ijen Maar is an active tuff-cone volcano located in East Java, Indonesia. This remarkable geological site features a large, acid-maar lake formed within its caldera. The lake’s extreme acidity, due to volcanic gases and mineral reactions, makes it one of the most corrosive bodies of water on Earth. Scientists study Ijen Maar to understand processes related to maar formation, volcanic activity, and the chemical characteristics of highly acidic environments.
Geologists, volcanologists, and researchers interested in these phenomena utilize this location for investigation.
help Ijen maar (East Java) FAQ
Where is the Ijen Maar located?
The Ijen Maar is an active tuff-cone volcano located in the East Java province of Indonesia, situated within the massive Ijen volcanic complex. It is part of the Pacific Ring of Fire and sits near the northeastern tip of Java.
Why is the lake inside Ijen Maar famous?
The crater features an acid-maar lake renowned for being one of the most corrosive and highly acidic bodies of water on Earth. The brilliant turquoise color of the water is caused by high concentrations of hydrochloric and sulfuric acids.
What natural phenomenon can you see at Ijen at night?
Ijen is famous for its electric blue flames, caused by the ignition of sulfuric gases emerging from cracks in the volcano at high pressures and temperatures. This phenomenon is only visible in the dark and draws thousands of tourists each year.
What do the local miners extract from the Ijen Maar?
Despite the extreme danger and acidity, local workers hike into the crater daily to mine pure yellow blocks of sulfur. They manually carry heavy loads of the mined sulfur down the steep mountain to be sold for industrial processing.
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