- #36
sheshank
- 27
- 1
billiards said:Whilst intuition can be a useful guide in dreaming up hypotheses, predictions and experiments, intuition is not a strong pillar of truth. Scientific knowledge comes by researchers applying the scientific method.
It is well established fact that water lowers the melting temperature of rock, and this has been verified over and over again in labs all around the world. I suspect that your conceptual model of what is happening is wrong. The water itself gets into the crystals that make up the rock, I suspect you are thinking of the water as being "free", but we are actually talking about the water as getting incorporated into the very rock itself. In this case the water is part of a solid constituent, not liquid or vapour. The effect of the water on this constituent is what we are talking about.
Let me tell you my point of logic (Warning ! it may be a false reasoning). A hard rock when is complete solid, can never allow water into it. But, gradually as the temperature increases (pressure is constant here), the rock starts to become soft giving chance for the pores to form. In our case, these pores are filled with water molecules which is the Absorption (Adsorption) phenomena. It obviously reduces the temperature conditions of the rock. But, when the same is subjected to conditions under pressure, the rock pores will compress leading the water to exhaust outside - just like a sponge squeased out of water. How much ever you may squease a sponge, it still remains wet. I expect the same to happen with the rock and Earthly conditions. A squeased sponge's properties obviously changes, but not considerably - compared to the case where the sponge is completely adsorbed with water. But, remembering that sponge particles, the particles of which the sponge is actually made, don't keep water molecules attached with them or react with them.
I am very sorry, My English is so limited and I can't explain better than this. If it doesn't reach you, then I am helpless. I'll try to improve my english.