Do you read the links that you give here? The one about drilling said that the bottom of the sample was dated to 2.7 billion years old.
How many times have I said the dates are conjecture? Do you read my posts? But, just because the dates are conjecture does not mean the other material within the article is unimportant. Scientists here and there changes dates like shoes going out of style. the dates are not important to the relevancy of other data. But you are stuck on dates and seem to miss all the other data, why?
It's also well known that the heat comes from radioactive decay.
a small portion of it. not all of the magma in the earth is radioactive. the mantel is not radioactive far as I know. just hot molten rock. We're guessing at that anyway, conjecture... no one has ever seen the mantel of the earth, it's way too hot to get close to. all we really know is... it's HOT down there. Maybe it's hell, a big hot void, the pit.
But you seem to want to be presenting the idea that this heat continuously reaches up to the very top of the crust, everywhere.
yes linda, everywhere, keep reading if it hasn't sunk in yet. No pun intended.
You seem to think that a permanent snow layer is not possible because the earth should be causing the ice to melt. I don't understand why you think this is a logical possibility.
It's actually not possible, within today's climate, except at very high elevations (The mountains of Iceland, Alaska, the himalayas...) where the air is cold a majority of the time or at least cold at night during summer, and in places that experience extended darkness during the fall-spring equinox periods (the arctic-antarctic). You cannot fly a plane at 20,000 feet without a shell and heat, you'll freeze to death pretty quickly. The
atmosphere is
cold except for heat that the earth radiates on it's surface from the sun shining. It's a combination of things, no warm earth to absorb and radiate the sun's heat, no clouds and lower stratosphere to hold the heat in, and the sun does not feel warm even though at 20,000 feet you are actually closer to it than at sea level.
If the heat of the earth and sea in Antarctica were given some help with the extra daylight radation heat from the sun, there would not be snow continually in antarctica. and no glaciers in tibet if the atmosphere were not so cold at high elevations.
this is Iceland in summer
<img src="http://herballure.com/ForumExtras/Images/ldhioyobmn.jpg">
www.bcanet.co.uk/bikesite/crossing_iceland.htmand alaska looks similar. You can grow real big veggies in alaska in the summer because of the extended daylight from the spring to fall equinox.
The temperature in Antarctica during it's brief summer reaches 50 degress F on average but there is very little land mass to absorb the sun's radiation, so minus the warm earth to hold onto that bit of from the sun, the atmosphere stays cold. it's rather cold all in all. even with active volcanoes. but it's still warm enough at times, both atmospherically and geothermally to melt the galciers a little bit continuosly and ruin any chances of a perfect climate record by drilling ice.
though you can keep insisting it's all not true. but there is a photo for you again. I have noticed you never post any real life examples of your claims.
if i'm missing something or if all the geothermal researchers in the world drilling all over the world at this moment trying to tap into the earth'e reliable and consistent heat in an affordable way are wrong, you should show us, not with your opinions but with real life examples.
I could be wrong. there could be some remote island somewhere that floats above the surface of the earth and thus isn't privy to the heat radiating out from it's core.
