Scientists admit unknown substance that maintains the flame, the indigenous people were burning flame throughout the millennia.

Reportedly, hundreds of fire "natural" world constantly burning through natural gas from shale born, ancient rocks, extremely hot underneath it.Temperatures above 100 degrees C broke the carbon molecules in the shale and reactions produce a natural gas.

According to locals, the fire has burned over a thousand years.

Previously, scientists said that the fire event in New York also similar. However, a recent study by Arndt Schimmelmann and colleagues at Indiana University (USA) showed that the rocks beneath Chestnut Ridge Park is not hot enough for this reaction to happen. That means maintaining gas flame generated by a different process. They can not recognize correctly identified this process.

"The rocks here only the temperature of a" cup of tea ". Moreover, shale dating not as much as expected. Means gas supply for New York fire totally different from the flames eternal world. We continue working to solve the mystery of this "Schimmelmann said.

The fire in Enternal Flame falls, New York. Photo: Dailymail

Reportedly, he also Schimmelmann and colleagues have discovered a different eternal flame at Cook Forest Park in Northwest Pennsylvania. This eternal flame was ignited by an old gas wells.

This group of scientists published their findings in a research project on the May edition of the journal Marine and Petroleum Geology.