Does carbon dating work for 6 billion years

23 Dec

Each time a new layer of sediment is deposited it is laid down horizontally on top of an older layer.

This is the principle of original horizontality: layers of strata are deposited horizontally or nearly horizontally (Figure 2).

However, by itself a fossil has little meaning unless it is placed within some context.

The age of the fossil must be determined so it can be compared to other fossil species from the same time period.

The first is that atoms have always decayed at the same rate.

And this isn’t really an assumption as the decay rates have been tested in the laboratory for a hundred years or so, we have an example of a natural nuclear reactor where we can measure the various products and determine the decay rates (and the fine structure constant), and we can observe the past by looking deep into the past of the universe. The sigh isn’t for the effort of writing, it’s for the effort of finding all the references.

Relative dating puts geologic events in chronological order without requiring that a specific numerical age be assigned to each event.

Second, it is possible to determine the numerical age for fossils or earth materials.

However, the age of each fossil primate needs to be determined so that fossils of the same age found in different parts of the world and fossils of different ages can be compared.Mountains have been built and eroded, continents and oceans have moved great distances, and the Earth has fluctuated from being extremely cold and almost completely covered with ice to being very warm and ice-free.These changes typically occur so slowly that they are barely detectable over the span of a human life, yet even at this instant, the Earth's surface is moving and changing.Scientists, using rigorous methods have established a process to eliminate this problem by calibrating radiocarbon dating results to items of a known age.In this way, items of unknown age can be tested and an age determined to a reasonable degree of accuracy. More tomorrow where we explore the concept of isochron dating and how it neatly destroys most of the rest of these ‘issues’.