Originally posted by RJHindsWell well well. So it is in the core. What part of it that is 4000 miles deep do you not understand? What part of 'if it is 4000 miles deep, it cannot participate in volcanic activity' do you not understand?
LOOK WHAT I FOUND:
[b]Iridium is extremely rare in the earth's crust because it is a siderophile element, and therefore most of it sank with iron into the earth's core during planetary differentiation.
http://en.wikipedia.org/wiki/Cretaceous%E2%80%93Paleogene_boundary[/b]
Nobody denies there may be Iridium in the core. It is the MANTLE we are talking about. That is where any volcanic action takes place. No deeper.
Why do you think therefore that the entire Earth is not covered in Iron?
Could it be that most of it is in the core also? You see volcano's spewing out pure iron ANYWHERE at ANY time in the history of Earth?
THINK man. THINK. For yourself, not using creationist video's.
Did you not read ANY of those sites I found?
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Originally posted by sonhouseSorry to disappoint you, but my creationists videos did not have anything on it, so I had to look elsewhere. I did not pay any attention to the spewing up of iron, but it might be there too.
Well well well. So it is in the core. What part of it that is 4000 miles deep do you not understand? What part of 'if it is 4000 miles deep, it cannot participate in volcanic activity' do you not understand?
Nobody denies there may be Iridium in the core. It is the MANTLE we are talking about. That is where any volcanic action takes place. No deeper.
...[text shortened]... K. For yourself, not using creationist video's.
Did you not read ANY of those sites I found?
Yes there was iron.
It lists the FeO percentages in the analyzes of andesitic melt and silicate melt particles. However, I don't understand what it means. It varied from about 4 to 5%.
Originally posted by RJHindsIt means it didn't come anywhere NEAR the core, get it? Mixed in at about 4 or 5 percent, means 95 or 96% OTHER stuff. The core is at least 90 % iron.
Sorry to disappoint you, but my creationists videos did not have anything on it, so I had to look elsewhere. I did not pay any attention to the spewing up of iron, but it might be there too.
Yes there was iron.
It lists the FeO percentages in the analyzes of andesitic melt and silicate melt particles. However, I don't understand what it means. It varied from about 4 to 5%.
Originally posted by sonhouseNo the core is not estimated to be 90% iron. My source says about 80% iron, 10% nickel, and 10% a mixture of lighter elements.
It means it didn't come anywhere NEAR the core, get it? Mixed in at about 4 or 5 percent, means 95 or 96% OTHER stuff. The core is at least 90 % iron.
I stated that the FeO percentages were in the analyzes of andesitic melt and silicate melt particles not percentages in the core.
However, after rechecking the information I see that the main parts of the earth are crust, mantle, and core. So it may be that more iridium is in the mantle because the lighter elements have a tendency to rise to the top toward the crust.
The mantle extends from the base of the crust to a depth of about 2900 km (1800 mi). Except for the zone known as the asthenosphere, it is solid, and its density, increasing with depth, ranges from 3.3 to 6 g/cm3. The upper mantle is composed of iron and magnesium silicates. The lower part may consist of a mixture of oxides of magnesium, silicon, and iron.This layer is made up of mostly 11 elements : oxygen, silicon, aluminum, iron, calcium, sodium, potassium, magnesium, titanium, hydrogen, and phosphorous. These 11 elements are all mixed up within different compounds in a crystal form, so that we can call them minerals.
Some points to remember in studying the earth’s interior:
•There are distinct layers to the earth’s interior.
•Heavier elements tend to sink to the core
•Lighter elements rise toward the surface
•Much more is known about the crust than the mantle and core.
•What we believe is true about the mantle and core comes from studying seismology.
So the above shows that what we know about the mantle and core are highly speculative.
Originally posted by RJHindsNone of that refutes the fact there is a 100 fold increase in the Iridium concentration in that one inch layer all over the world. No matter how you slice it, volcano's cannot do that. If they blow they blow kilometers of crap in the air and the ejecta only lands within a few miles of the blow.
No the core is not estimated to be 90% iron. My source says about 80% iron, 10% nickel, and 10% a mixture of lighter elements.
I stated that the FeO percentages were in the analyzes of andesitic melt and silicate melt particles not percentages in the core.
However, after rechecking the information I see that the main parts of the earth are crust, mant ...[text shortened]... ology.
So the above shows that what we know about the mantle and core are highly speculative.
If it were a million volcano's there would be a million layers if there was iridium in higher concentration than background.
It is not a million layers. It is ONE layer, one inch deep found at the same age strata all over the world. It was one BIG hit, like I said it dumped crushed rock and dust on Bermuda 1500 miles away. Volcano's can't do THAT either.
Originally posted by sonhouseI somehow missed your proof of that 100 fold increase in the Iridium concentration in that one inch layer all over the world and how that proves the asteroid impact theory.
None of that refutes the fact there is a 100 fold increase in the Iridium concentration in that one inch layer all over the world. No matter how you slice it, volcano's cannot do that. If they blow they blow kilometers of crap in the air and the ejecta only lands within a few miles of the blow.
If it were a million volcano's there would be a million lay ...[text shortened]... said it dumped crushed rock and dust on Bermuda 1500 miles away. Volcano's can't do THAT either.
Originally posted by RJHindsSo maybe you actually believe there could be such a thing as a huge mt Everest size strike on the Earth now?
I somehow missed your proof of that 100 fold increase in the Iridium concentration in that one inch layer all over the world and how that proves the asteroid impact theory.
Originally posted by RJHindsNow THAT'S critical thinking in action. Look at the evidence, ADMIT you didn't see the 100X concentration of Iridium in a one inch thick world wide layer and then come to the conclusion nothing big ever hit the Earth. Great going. One strike for reasoning ability.
I believe it is nonsense. That's what I believe.
This PROVES you are just a troll nothing more.
Originally posted by sonhouseThat proves I can think logically by reasoning that your 100X concentration of Iridium in a one inch thick world wide layer proves an asteroid strike is nonsense.
Now THAT'S critical thinking in action. Look at the evidence, ADMIT you didn't see the 100X concentration of Iridium in a one inch thick world wide layer and then come to the conclusion nothing big ever hit the Earth. Great going. One strike for reasoning ability.
This PROVES you are just a troll nothing more.