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mass dating

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  • Mass spectrometry — (MS) is an analytical technique that measures the mass to charge ratio of charged particles.[1] It is used for determining masses of particles, for determining the elemental composition of a sample or molecule, and for elucidating the chemical… …   Wikipedia

  • Dating methodologies in archaeology — Dating material drawn from the archaeological record can be made by a direct study of an artifact or may be deduced by association with materials found in the context the item is drawn from or inferred by its point of discovery in the sequence… …   Wikipedia

  • Dating methodology (archaeology) — Dating material drawn from the archaeological record can made by a direct study of an artifact or may be deduced by association with materials found in the context the item is drawn from or inferred by its point of discovery in the sequence… …   Wikipedia

  • dating — I In geology and archaeology, the process of determining an object s or event s place within a chronological scheme. Scientists may use either relative dating, in which items are sequenced on the basis of stratigraphic clues (see stratigraphy) or …   Universalium

  • mass spectrometry — or mass spectroscopy Analytic technique by which chemical substances are identified by sorting gaseous ions by mass using electric and magnetic fields. A mass spectrometer uses electrical means to detect the sorted ions, while a mass spectrograph …   Universalium

  • Mass killings under Communist regimes — Part of the series on Communism …   Wikipedia

  • Dating the Bible — Part of a series on The Bible …   Wikipedia

  • Mass —    The Roman Catholic name for the celebration of the Eucharist; Lutheran, Anglican, Orthodox, and other traditions refer to essentially similar liturgies with some variant of the Holy Eucharist, Holy Communion, or the divine liturgy. Also, a… …   Historical dictionary of sacred music

  • Mass in B Minor —    Composed by Johann Sebastian Bach, the Mass in B minor (BWV 232) is one of the largest and most outstanding concerted settings of the Roman Catholic mass ordinary in the entire Western tradition. Scored for five voice chorus, vocal soloists,… …   Historical dictionary of sacred music

  • Radiometric dating — (often called radioactive dating) is a technique used to date materials such as rocks, usually based on a comparison between the observed abundance of a naturally occurring radioactive isotope and its decay products, using known decay rates.[1]… …   Wikipedia

  • Isotope-ratio mass spectrometry — Isotope ratio mass spectrometer with gas bench in foreground Acronym IRMS Classification mass spectrometry Other techniques …   Wikipedia

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