U thhe dating of phosphates apatite monazite and xenotime

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Nuclei approaching one hundred protons are unstable because the strong nuclear force, which acts to hold neutrons and protons together, is about 100 times greater than electromagnetic repulsion.Dating of minerals using radiogenic He was first explored shortly after the discovery of radioactivity (Strutt 1908) and was investigated extensively in the 1950s and 1960s, mostly on very U- and Th-rich minerals such as zircon and titanite (Hurley 1952, 1954; Damon and Kulp 1957, Damon and Green 1963). Mineralogical Society of America and Geochemical Society, Reviews in Mineralogy and Geochemistry, volume 482002; paperback, 742 p.; ISBN 0-939950-60-X The Mineralogical Society of America has been publishing this series of reviews for nearly 30 years beginning with the initial volume in 1974 on sulfide minerals.The MSA/GS has set high standards with the publication of this series as they invariably offer an excellent snap shot of state-of-the-science in a particular area.Thus interpretation of results from these geochronometers requires a greater understanding of their structure, stability, and kinetic properties than does zircon.

Apatite He dating was first investigated by Zeitler et al.In this book, the author presents current state-of-the-art applications on the occurrence, major properties and biomimetic crystallization of Ca PO4, as well as information on their history.Topics discussed include the geological and biological occurrences, a brief description of all known members of the Ca PO4 family, their presence and major functions in the hard tissues of living organisms as both desired (normal) and undesired (pathological) calcifications, as well as the available information on biomimetic crystallization.Below are the most common reasons: This site uses cookies to improve performance by remembering that you are logged in when you go from page to page.To provide access without cookies would require the site to create a new session for every page you visit, which slows the system down to an unacceptable level.

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