Uranium lead dating accuracy

According to a long-standing principle of the geosciences, that of superposition, the oldest layer within a sequence of strata is at the base and the layers are progressively younger with ascending order.The relative ages of the rock strata deduced in this manner can be corroborated and at times refined by the examination of the fossil forms present.Although quite varied opinions about the history and origins of life and of the Earth itself existed in the pre-Christian era, a divergence between Western and Eastern thought on the subject of natural history became more pronounced as a result of the extension of Bible.This required that the Earth be conceived of as a static, unchanging body, with a history that began in the not too distant past, perhaps as little as 6,000 years earlier, and an end, according to the scriptures, that was in the not too distant future.

Fossils help geologists establish the ages of layers of rock.Leonardo seems to have been among the first of the Renaissance scholars to “rediscover” the uniformitarian dogma through his observations of fossil marine organisms and sediments exposed in the hills of northern Italy.He recognized that the marine organisms now found as fossils in rocks exposed in the Tuscan Hills were simply ancient animals that lived in the region when it had been covered by the sea and were eventually buried by muds along the seafloor.This biblical history of the Earth left little room for interpreting the Earth as a dynamic, changing system.Past catastrophes, particularly those that may have been responsible for altering the Earth’s surface such as the great flood of Noah, were considered an artifact of the earliest formative history of the Earth.

Leave a Reply