1. There is an unusually high concentration of Iridium found at the K-T boundary. Iridium loves to stick to Iron, so the Iridium that would have been on Earth originally is in the Iron core, not in the crust. Therefore, the Iridium must have been introduced by an external source; a meteorite.
2. Shocked Quartz is found at the K-T Boundary all around North America. Shocked Quartz is only produced naturally by bolide impact. Since the K-T meteorite impacted in the Mexican peninsula, it makes sense that the shocked quartz would be found only in relatively close proximity to the impact site.
3. Microtektites, which are normally found at meteorite impact sites, are found at all K-T boundary impact sites.
4. There is a massive impact crater in the Mexican peninsula.
5. In many of the K-T Boundary sections there is a fine layer of ash (disseminated Carbon) from the global wildfires that were caused.
6. There was a fern spike because other flowering plants stopped producing pollen for awhile.
7. Microdiamonds have been detected at K-T Boundary sites, but not above or below.
Numerical dating is when you are trying to determine how long ago something took place or specifically how old something or someone is. For example, the extinction of the dinosaurs about 65 million years ago. Relative dating cannot tell us how long ago something took place, only that is followed one event and preceded another.
The 2018 Winter Olympics took place in Pyeongchang, South Korea.
In most parts of the world, Earth Hour 2009 took place from 8:00pm-9:00pm on the last Saturday of March. In Australia, Earth Hour was held from 8:30pm to 9:30pm.
No, relative dating can provide an estimate of the sequence of events but cannot determine the exact timing of when they occurred. This dating method relies on comparing the ages of rock layers or fossils relative to one another, rather than giving specific dates.
There have been at least five mass extinctions in earths history. The Permo-Triassic extinction, about 250 million years ago, was the worst. paleontologists estimate that 70% of land species and 90% of marine species went extinct at that time. Although there are many there are many theories, scientists still do not know the exact cause. The Cretaceous-Teritartiary extinction occured 65 million years ago and killed off dinosaurs.
From the PALEOZOIC ERA.
The Permian Extinction took place 250 million years ago, and 98% of life died out.
A large mass extinction took place at the end
When we see that there are fossils found in a certain geological layer, which are evidence that a certain species existed at that time, and then in the next geological stratum we no longer find those fossils, and there is no evidence that the species which used to exist still exists, we infer that the species became extinct. If a whole lot of species become extinct at approximately the same time, we call that an extinction event, such as the KT extinction.
I know it took place in Harlem, New York, but I was also wondering when it took place.
As far as i know it took place in New York As far as i know it took place in New York
many advances took place. i just dont know what they are.
many advances took place. i just dont know what they are.
The 1927 Indian National Congress took place in Madras, which is now know as Chennai.
Astronauts went to mars and had a interesting theory and had some proof and took tests
The battle of Montreal never took place, do you know why??
I don't know you tell me