Ancient correlation between

Animals, including humans, create their body tissues from the food they consume all the substances that constitute their bodies are derived from food. Food is, therefore, essential for their survival, and food and the search for adequate supplies of food have determined, and still determine, the life-patterns of ancient as well as of modem people. The study of past human feeding habits and their diets is, therefore, central to the understanding of ancient societies. A large number of studies have shown that there is strong correlation between the type food consumed and the relative amounts of the stable isotopes of some elements in the body or in its dead remains. This seems to confirm an axiom generally recognized in science, that "You are what you eat."... 

Moropoulou, A., Bisbikou, K., Van Grieken, R., Torfs, K., and Polikreti, K. (2001). Correlation between aerosols, deposits and weathering crusts on ancient marbles. Environmental Technology 22 607-618. 

One current estimate of NP diversity totals ryo.ooo different structures, yet this huge chemical diversity is generated from only a few biochemical pathways that branch from the metabolism shared by most organisms. About 60% of the known NP diversity comes from one ancient pathway (the isoprenoids or terpenoids), another 30% comes from some other ancient pathways related to each other (the polyphenols, phenylpropanoids or polyketides) and less than 10% of NPs (alkaloids) comes from a more diverse family of pathways. There seems to be a rough correlation between the number of species possessing one pathway and the total diversity of NPs made by that route. Consequently, the minor groups of NPs that comprise less than 1% of the total NP diversity (e.g., the glucosinolates) tend to be restricted to a small number of species. 

From the correlation between the ancient pottery and modern clay one can draw several significant conclusions in addition to the most immediately obvious one that the matching ancient pots were locally made. The amount of temper in the ancient pottery, as evidenced by our comparison with the clay source, has not diluted or otherwise significantly altered the compositional pattern of the ceramic. Also the pottery must not have significantly changed in composition during burial. In addition we observed a small but significant difference between the composition... 

A petroleum seep is defined as visible evidence at the Earth s surface of the present or past leakage of oil, gas, or bitumen from the subsurface. Seeps have been utilized at least since ancient tribes of the Near East recovered blocks of asphalt from the Dead Sea. Many studies have demonstrated the worldwide correlation between seeps and earthquakes, with most visible seeps being near past or present areas of tectonic activity. The presence of seeps in a basin can considerably reduce the exploration risk because these seeps indicate that petroleum-forming processes have been active in the subsurface. In a situation where the major pathway for seeps is along a fault, the intensity and shape of the seep are significantly different from those situations where vertical leakage has occurred, and this difference permits their distinction. 

The patterns of carbonate accumulation and preservation in the deep sea contain important information about the chemistry and fertility of ancient oceans. Numerous studies have now shown that variations in the carbonate system have occurred on a variety of timescales, both within and between ocean basins. On a local or even regional scale, such variations can often be used as a correlation tool. This has come to be known as preservation stratigraphy . 

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