User:Diamantesss/sandbox

By reading your article "Cave of the Crystals" I see you have interesting information about this naturally occurrence. Also, I see in some of the paragraphs you included interesting details and all your sources relate to your topic. However, while reading it I noticed that you missed some information. For example, it could be ideal to add a type of experience that currently happened while trying to enter the cave, time people are able to stay inside the cave and the type of risks people are exposed to. Lastly, it would be ideal to include the importance of this discovering.

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https://www.earthmagazine.org/article/danger-and-wonder-nat-geos-giant-crystal-cave http://www.bbc.com/news/science-environment-39013829

Cave of the Crystals or Giant Crystal Cave (Spanish: Cueva de los Cristales) is a cave connected to the Naica Mine, located 300 metres (980 ft) below the surface in Naica, Chihuahua, Northern Mexico.

The main chamber contains giant selenite crystals (gypsum, CaSO4·2 H2O), some of the largest natural crystals ever found.[1][1] The cave's largest crystal found to date is 12 m (39 ft) in length, 4 m (13 ft) in diameter and 55 tons in weight. The conditions inside the cave are extremely hot, with air temperatures reaching up to 58 °C (136 °F)[2][2] with 90 to 99 percent humidity. The cave is relatively unexplored due to these factors.[3][3] Without proper protection, people can only endure approximately ten minutes of exposure at a time because the combinations of deadly temperatures .[4][4]However, besides the dangerous conditions,it has been identified as the greatest most important geological discoveries because of the magnificent beauty this cave shows, its size and icy appearance crystals.

The cave was accidently discovered in 2000 by the miners and brothers Juan and Pedro Sanchez while they were drilling through the Mine. After the discoveries, group of scientists known as the Naica Project have been heavily involved in researching these caverns.[5][5]in hope of being able to answering some scientific questions focusing on determination of cave's age and evidence of life.

Formation of the crystals Naica lies on an ancient fault above an underground magma chamber below the cave. Mainly, the crystals were formed by hydrothermal veins fluids emanating from the magma chamber. The magma heated the ground water which was saturated with sulfide ions (S2−). Cool oxygenated surface water contacted the mineral saturated heated water, but the two did not mix due to the difference in their densities. The oxygen slowly diffused into the heated water and oxidized the sulfides (S2−) into sulfates (SO42−). The hydrated sulfate gypsum crystallized at an extremely slow rate over the course of at least 500,000 years, forming the enormous crystals found today. The key to this process is the slow diffusion of oxygen from the cool, low density surface water into the hot, high density ground water.[6][6]