Topic: Geology | science | Britannica.com

The oldest known treatise on rocks and minerals is the De lapidibus (“On Stones”) of the Greek philosopher Theophrastus(c. 372– c. 287 bce).Written probably in the early years of the 3rd century, this work remained the. Study of the composition of the Earth

1 Re: Potassium argon dating human evolution

Creation Evidence and Evolution Myth - matthewmcgee.org The overwhelming majority of the scientific evidence shows that the earth is very young, contrary to the evolution myth.

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The Fossil Record - Naturalism and The Theory of Evolution In 1999 Dr. Raul Esperante teamed up with Dr. Leonard Brand and others to investigate fossil whales within the Pisco Formation of Peru's Atacama Desert.

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Creation Versus Evolution - Clarifying Christianity Creation Versus Evolution: We compare the theory of evolution with the Bible’s creation account in easy-to-understand terms, using evidence from the fields of paleontology, geology, biology, and astronomy.We provide links and a bibliography for those who want to study both sides of the issue.

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Laetoli - Wikipedia Laetoli is a site in Tanzania, dated to the Plio-Pleistocene and famous for its hominin footprints, preserved in volcanic ash.The site of the Laetoli footprints (Site G) is located 45 km south of Olduvai gorge.The location and tracks were discovered by archaeologist Mary Leakey in 1976, and were excavated by 1978. Based on analysis of the footfall impressions 'The Laetoli Footprints' provided.

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ActionBioscience - promoting bioscience literacy Our understanding of the shape and pattern of the history of life depends on the accuracy of fossils and dating methods. Some critics, particularly religious fundamentalists, argue that neither fossils nor dating can be trusted, and that their interpretations are better.

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Biology Dictionary P-Q - Biology, hybrids, human origins. Biology Dictionary - P to QUOTIDIAN: Meanings of biology terminology and abbreviations starting with the letters P or Q.

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Age of the Earth: strengths and weaknesses of dating methods It follows that uranium-lead, potassium-argon (K-Ar), and Rubidium-Strontium (Rb-Sr) decay can be used for very long time periods, whilst radiocarbon dating can only be used up to about 70,000 years.

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Earth sciences - Radiometric dating | Britannica.com Earth sciences - Radiometric dating: In 1905, shortly after the discovery of radioactivity, the American chemist Bertram Boltwood suggested that lead is one of the disintegration products of uranium, in which case the older a uranium-bearing mineral the greater should be its proportional part of lead. Analyzing specimens whose relative geologic ages were known, Boltwood found that the ratio of.

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Unreliability of Radiometric Dating and Old Age of the Earth How radiometric dating works in general : Radioactive elements decay gradually into other elements. The original element is called the parent, and the result of the decay process is called the daughter element.