West of Gunung Merapi is the Ijen fountain of liquid magma, which has an one kilometer wide turquoise hued corrosive pit lake. The lake is the site of a work escalated sulfur mining operation, in which sulfur-loaded bushel are conveyed by hand from the hole floor. The work is paid well considering the average cost for basic items in the zone, however is extremely difficult. Specialists acquire around Rp 50,000 – 75,000 ($4-$6) every day and once out of the cavity, still need to convey their heaps of sulfur lumps around three kilometers to the close-by Paltuding Valley to get paid.
The Kawah Ijen Crater complex is a gathering of stratovolcanoes in the Banyuwangi Regency of East Java, Indonesia. It is inside a bigger caldera Kawah Ijen, which speaks the truth 20 kilometers wide. The Gunung Merapi stratovolcano is the most elevated purpose of that complex. The name “Gunung Merapi” signifies “heap of discharge” in the Indonesian dialect (programming interface being “shoot”) Mount Merapi in focal Java and Merapi in Sumatra have the same derivation.
The Crater of Ijen is recognized as the largest highly acidic crater lake in the world. It is also a source for the river Banyupahit water, resulting in highly acidic and metal-enriched river water which has a significant detrimental effect on the downstream river ecosystem. In 2008, explorer George Kourounis took a small rubber boat out onto the acid lake to measure and look at its acidity. The pH of the water in the crater was measured to be 0.5 due to sulfuric acid condition.