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Associated with stones porosity is its permeability. This is the extent to which the pores and capillary structures are interconnected throughout the stone. These networks, their size, structure and orientation affect the degree and depth to which moisture, vapors and liquids can be absorb into the interior of the stone or migrate from the substrate by capillary action through the stone. Permeability may be greater in some directions than others based upon the pore size, shape and the distribution of the interconnectedness of the system.
Permeability is increased when a stone is highly fractured or the veining material is soft or grainy. A particular variety of stone may be highly permeable ( a well defined interconnected network of pores), although its porosity is low (a low percentage of voids).
The size and shapes of pores and the capillary structure differs in stones and is an important factor in relation to stone decay.
Originally posted by stereologist
reply to post by smurfy
I checked out your link. I checked into Robert Sloan. Did you?
SCIENCE WATCH; DEATH OF DINOSAURS ASSERTED TO BE GRADUAL
I looked all over the place for Sloan original paper and all I could find was your link that suggests a link to oxygen while nothing else associated with Sloan does. Do I smell a misrepresentation? I'd like to see Sloan original material and not someone claiming what he said.
Some of the stuff you have been presenting as fact, my research on the subject does not support across the board, such as the PERMEABILITY of granite.
Please stop calling people ignorant and stupid, there is no call for that.
Let the rest of us who can see how the theory might work discuss it in peace without your insults. If you want to discuss it with us respectfully, I'd like to see you back up your statements with some links, proving your point. Otherwise you're just wasting our time.
I found the pdf in half a minute, and there was a research team involved, not Robert E. Sloan alone. If you have a problem with Mr Sloan, you have a problem with the whole team. You had asked for a link alluding to asserted temperatures, I gave you one, that wasn't good enough for you. Such pomposity, you didn't even realise that someone was trying to be helpful. So, if you think I'm going to post any more links for you, you can take a running jump....... right back to the Mesozoic.
Originally posted by smurfy
Originally posted by stereologist
reply to post by smurfy
I would be interested in reading about oxygen levels at the time of the dinosaurs. I do know that the levels were much higher earlier in the Earth's history. I thought levels were down before the Mesozoic era. Thanks for any links.
That's most likely what the debate is about. The Mesozoic era takes in several peroids I think. So how much oxygen transfer did the, (large) dino's need and how much did they get latterly? The thinking is that dino's needed high levels of oxygen like 35% and maybe they had little reserve in their lungs, although I'm not sure if anyone knows exactly about dino lungs. Then right through the era, if the research is correct, the oxygen levels were highly variable. So if you want to include a bolide from space, the dino's were most likely roasted, starved and suffocated. Here's one paper on it, to edit a blog rather,
dml.cmnh.org...edit on 12-3-2011 by smurfy because: Text.
The oceans are relatively small and in a time of accretion could certainly have supplied all of the water we see today.
Originally posted by sezsue
reply to post by stereologist
You're technically right about granite, it's pore structure is low, BUT it's permeability can be quite high depending on how much it's fractured, and allow water through like rocks with a larger pore size.
That's why there can be things like granite aquifers, such as the Snake River aquifer in Idaho.
Originally posted by gringoboy
reply to post by stereologist
The oceans are not small and make up two thirds of the earths surface.
It still baffles the most eminent as to how with the sun being realitively young ice ages occurring,recent intertellar observation are now answering that question.
The expanding earth theory is valid and this is because everything observed in the universe is expanding,our own sun will expand to within the orbit of earth,expanding before its demise.
However when looking at galaxies we do not see this process because of the invisible black hole getting larger within.This then gives the illusion that the galaxies are not expanding.
Originally posted by stereologist
reply to post by smurfy
All you do here is present no evidence and make an appeal to authority. The paper, where is the paper?
Originally posted by stereologist
reply to post by sezsue
Some of the stuff you have been presenting as fact, my research on the subject does not support across the board, such as the PERMEABILITY of granite.
I have made no statements concerning the permeability of rock regardless of the type of rock. The permeability of rock makes no difference when it comes to the expanding Earth theory.
Please stop calling people ignorant and stupid, there is no call for that.
Go back and read the posts. I have not stated that about any person. The only person stating such is another poster that has had their posts edited and sanctioned.
Let the rest of us who can see how the theory might work discuss it in peace without your insults. If you want to discuss it with us respectfully, I'd like to see you back up your statements with some links, proving your point. Otherwise you're just wasting our time.
The theory is an utter failure. I have pointed that out. No matter how much discussion there is about aquifers, the limited pore spaces in granites, or the permeability of fractured rocks, none of this supports the claim of an expanding Earth.
The problem with an expanding Earth is that new matter must be added. That needs to be substantiated by the people supporting this theory.
The theory is an utter failure. I have pointed that out. No matter how much discussion there is about aquifers, the limited pore spaces in granites, or the permeability of fractured rocks, none of this supports the claim of an expanding Earth. The problem with an expanding Earth is that new matter must be added. That needs to be substantiated by the people supporting this theory.
The theory is an utter failure. I have pointed that out
Originally posted by Missing Blue Sky
reply to post by stereologist
My granite counter top in my kitchen is porous. If I leave a glass of ice water on the counter, the condensation will create a ring of water that is absorbed into the granite below the surface. Same with marble. Ask and contractor, to avoid this granite counter tops are usually sealed with polyurethane.edit on 3/13/2011 by Missing Blue Sky because: (no reason given)
EToday's Earthquake Fact
The oldest rocks on Earth are found on land. Since the ocean floor is being continually regenerated as the continental plates move across the Earth's surface, the oldest rocks on the ocean floor are less than 300 million years. In contrast, the oldest continental rocks are 4,500 million years old.
The expanding earth theory is valid and this is because everything observed in the universe is expanding,our own sun will expand to within the orbit of earth,expanding before its demise.However when looking at galaxies we do not see this process because of the invisible black hole getting larger within.This then gives the illusion that the galaxies are not expanding.
i hope this helps thanks gringo.
Provide some links please, showing how the theory is a failure.
I can see how there is some science supporting the theory.
Scientists are saying that space is full of plasma, particles ...
Scientists say that earth and the other planets are constantly being bombarded by what is coming from the sun and the other stars. ...
If we are being constantly bombarded with elements ...
Earth's water, minerals, and oxygen are created through this process. This happens where the earths crust is thin, such as where earths plates join, or the Ocean ridges.
We can only hypothesize and spectulate, and come up with theories.
This expansion process would be so gradual for most of the time, but would come to a point where an increased burst of energy from the sun, and other stars would infuse the whole system, causing a violent outburst, such as earthquakes, volcanoes erupting, cracks developing in the earth, sinkholes forming, and with such activity increasing and coming to a crescendo.
The problems Japan is going through right now is a pretty good example of the expansion theory at work.
The 03/11/2011 earthquake (preliminary magnitude 8.9) near the east coast of Honshu, Japan, occurred as a result of thrust faulting on or near the subduction zone interface plate boundary between the Pacific and North America plates.
The Japan Trench subduction zone has hosted 9 events of magnitude 7 or greater since 1973. The largest of these was an M 7.8 earthquake approximately 260 km to the north of the March 11 event, in December 1994, which caused 3 fatalities and almost 700 injuries. In June of 1978, an M 7.7 earthquake 35 km to the southwest caused 22 fatalities and over 400 injuries.