Loki's Castle is what's called a black smoker--a type of vent that mostly shoots out sulfides. Sulfides, though, aren't the only minerals around Loki's Castle; researchers have found large deposits of iron, and there is almost certainly other stuff they haven't yet identified. Scientists from the University of Bergen are concerned about the mining industry disturbing the pristine environment of Loki's Castle. So they want to make it a national park, which would afford it certain environmental protections. "It is our opinion that this area is so unique that it should be preserved. We are talking about very vulnerable environments," Professor Rolf Birger Pedersen of the University of Bergen said in a press release. It is in effect a blank spot on the map; we know it's a black smoker, and we know water temperatures are searingly high (up to 570 °F), but nobody knows much about what kind of flora and fauna survive down there, or how Loki's Castle was formed, or how old it is, or its history. Twenty new animal species have been found there already! Deep-sea mining could compromise additional discoveries.