- Jan de Boer
This conversation is closed.
Lets reconsider the basics of several sciences. Step 1. The crust of our Earth is floating on...... On what?
Several sciences are based on incorrect assumptions.
That could be expected. We are all suffering sometimes from tunnel vision, blind spots, not-made-here, political correctness, stubbornness and so on.
So, lets have a look at some “facts”, decide what is wrong about them and leave it to the scientists to tie up the loose ends in a proper scientific way.
They told us at school: “The crust of our Earth is floating on liquid magma.”..... Is that true?
How do you tackle this question?
My way is to estimate the conditions at the underside of the tectonic plates.
First the pressure. Taking in account their thickness, the specific weight of the materials, I come to a pressure of some 20,000 bar plus or minus a few thousands.
Second the temperature. Taking in account their thickness and the temperature gradient I come to a temperature of some 2,000°C plus or minus a few hundreds.
Third, the nature of the material below the crust. If this material is liquid, then the heavier materials will sink down and the lighter materials will move up.
Given the fact that Earth is old, the segregation must have been completed long ago.
Lets look at the lighter atoms and molecules. Most of them are well above their critical point even at 1,000°C and therefor not liquid but gas. Examples are hydrogen, helium, nitrogen, sulpher, sodium and above all carbon-dioxide and water.
An average volcano emits some 500 tons CO2 per hour. There are some 1,500 active volcanoes. Add the emission of sleeping and dead volcanoes and you get a total emission of some ten billion tons CO2 each year. This has been going on for a few billion years, so the crust of our Earth is not floating on liquid lava, but is, like a hovercraft, floating on gas. A mixture of gases, so hot that they are ionized and many are dissociated.
Do you agree so far? If not, proof that I'm wrong.
Next, step 2: Voyage to the center of the Earth.