Information on radiocarbon dating for kids
Got an HOB that didn’t work out…or maybe you need an HOB for a certain area…or perhaps you have an idea that needs some fleshing out..
Jump To: Age of the Earth and Its Fossils Genetics Comparative Anatomy Transitional Fossils Convergent Evolution Adaptations Vestigial Traits Artificial Selection Evolution in Action Sexual Selection And The List Goes On…
Benjamin Franklin saw that there were fossilized sea shells on top of the mountains of Appalachia, some of them imprinted into solid rock, and concluded, “Tis certainly the Wreck of a World we live on!
” The shells were deposited in layers on the Ocean floor over millions of years, layers that would be violently broken up and rippled into a mountain range 480,000,000 years ago by a catastrophic earthquake.
These reasons will work from the general to the specific.
I’ve used links to articles in Wikipedia as much as possible because Wiki articles are refined over time with our understanding of the subjectmatter and are less subject to link-rot.
Dinosaur footprints, slug footprints, Australopithecus footprints and other footprints on top of any layer in the strata means that layer was at the top of the stack long enough for something to walk on top of it before it got covered by subsequent layers and hardened into solid rock.
The process of permineralization, where mineral deposits form internal casts of organisms, provides us with a vast quantity of fossils that give us an idea of the different forms life has taken in the past.
By comparing the ratio of uranium-238 to lead-206, we can estimate how old the rock is.These fossilized bacterial colonies date back 2.7 billion years and may extend 3.4 billion years.Stromatolites grow at a maximum rate of 5cm every 100 years and a stromatolite 1.5 meters in diameter was found in Virginia and a 500cm high stromatolite was found at the foot of Wutai Mountain in China.There are matching fossils on both sides of where the continents appear to have split apart.Cynognathus, a Triassic land reptile, fossils are found in South America and Africa.