Faunal dating

22-Jan-2020 01:39

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Earth’s surface is a complex mosaic of exposures of different rock types that are assembled in an astonishing array of geometries and sequences.Individual rocks in the myriad of rock outcroppings (or in some instances shallow subsurface occurrences) contain certain materials or mineralogic information that can provide insight as to their “age.”For years investigators determined the relative ages of on the basis of their positions in an outcrop and their fossil content.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 scholars to “rediscover” the uniformitarian dogma through his observations of fossil marine organisms and sediments exposed in the hills of northern Italy.Loosely stated, the principle says that the various natural phenomena observed today must also have existed in the past (see below .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.In short, was correlation among these various sites now possible?Inherent in many of the assumptions underlying the early attempts at interpreting natural phenomena in the latter part of the 18th century was the ongoing controversy between the biblical view of Earth processes and history and a more direct approach based on what could be observed and understood from various physical relationships demonstrable in nature.

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His Primary and Secondary divisions are roughly similar to Lehmann’s Primary and Secondary categories.In spite of this deductive approach to interpreting natural events and the possibility that they might be preserved and later observed as part of a rock outcropping, little or no attention was given to the history—namely, the sequence of events in their natural progression—that might be preserved in these same rocks.