The oldest rock in the cave is roughly 100 million years old. The void of the cave was forming when the Balcones Fault Zone was active about 25 million years ago. If you are wondering how old the cave is, this is the closest we will get to knowing its age.
The chemical formula for the creation of carbonic acid is:
H2O + CO2 = H2CO3
The chemical equation for the dissolution of calcium carbonate in carbonic acid is as follows:
CaCO3 + H2CO3 = Ca+2 + 2HCO3-
The cave is a constant 72 ˚ F because that is the average ground temperature in this area. Other factors affect cave temperature, but not enough to make a noticeable difference in our cave
There are at least 3,000 caves in Texas, 7 of which are show caves. Other Texas show caves include Natural Bridge Caverns, The Caverns of Sonora, and Cave Without a Name.
The melanin that causes skin pigmentation is a protective agent against radiation from the sun. This is why troglobites are white-they no longer have any need for that protection.
How to make a seashell: