What do you know of the IRIDIUM layer?

Answer 1

the theory is that it was deposited as a result of a huge asteroid collision with earth, probabably the one that killed off the dinosaurs in the last extinction event. And yeah, I knew that WITHOUT showing off my mad skillz at "cut and paste."

Answer 2

Iridium is an element that is rare on the Earth's surface, but abundant on chondritic meteors. The presence of excess Iridium at the K-T layer (the Iridium anomaly) supports the Alvarez asteroid theory. Source:
enchantedlearning.com
Helpful | Not Helpful feedback submitted A thin, worldwide layer of iridium exists in a layer of sediment that was put down at the end of the Cretaceous period. Since meteors and asteroids contain a higher percentage of iridium than the earth's crust, this iridium enriched layer is seen as evidence that the earth was struck by a large meteor or asteroid at that time. Dust from the impact would have spread around the globe, depositing the iridium. The dust ... would have blocked the sun for a time, resulting in the extinction of many plant and animal species, including the dinosaurs. Source:
education.jlab.org
Helpful | Not Helpful feedback submitted Iridium was brought into public discussion with the discovery of an iridium-rich layer in the strata of soil and rock which covers the entire planet. It is part of the evidence for an asteroid collision with the earth, widely associated with the extinction of the dinosaurs about 65 million years ago. Source:
hyperphysics.phy-astr.gsu.edu
Helpful | Not Helpful feedback submitted The KT event of 65 million years ago, marking the temporal border between the Cretaceous and Tertiary eras of geological time, was identified by a thin stratum of iridium-rich clay. A team led by Luis Alvarez (1980) proposed an extraterrestrial origin for this iridium, attributing it to an asteroid or comet impact near what is now Yucatan Peninsula. Their theory is widely accepted to explain the demise of the dinosaurs. Dewey M. McLean and others argue that the iridium may have been of volcanic origin instead. The Earth's core is rich in iridium, and Piton de la Fournaise on Réunion, for example, is still releasing iridium today. Source:
en.wikipedia.org
Helpful | Not Helpful feedback submitted The element iridium was brought into the public view with the discovery of a subsurface layer which was greatly enriched in iridium compared with its normal abundance. This layer was found many places around the globe and came to be associated with the boundary between the Cretaceous and Tertiary Periods, referred to as the K-T Boundary on the geological age scale.

Answer 3

If you mean the layer between the K-T boundary, it is strong evidence of a big meteor strike that roughly co-incides with a major extinction event- one of at least five such mass extinctions that seem to have killed off about 1/2 of the known animals.

So what is your point? Does it prove evolution or creationism? Neither, really so far as I know.

Answer 4

Do you mean the element IR? It is used in hardening platinum, could have resulted from some type of meteor or meteorite crashing into the earth. Other than that, I have very little knowledge on the subject. What's your info? I'd be interested.

Answer 5

Seems like someone could cut and paste faster than I.

Answer 6

Is that the new powder they are putting on Condoms? I know nothing about it.

Answer 7

A lot.
Is there a more specific question ?

Answer 8

I don' unnerstand it, so God musta did it. Praise Jebus!

Answer 9

are you talking about the K-T Theory

Answer 10

I could if I thought that it was something that I need to know. should I?