- uranium uranium method
- 铀铀法
English-Chinese geology dictionary (英汉地质大词典). 2013.
English-Chinese geology dictionary (英汉地质大词典). 2013.
Uranium — (pronEng|jʊˈreɪniəm) is a silvery gray metallic chemical element in the actinide series of the periodic table that has the symbol U and atomic number 92. It has 92 protons and 92 electrons, 6 of them valence electrons. It can have between 141 and … Wikipedia
Uranium trioxide — IUPAC name Uranium trioxide Uranium(VI) oxide … Wikipedia
Uranium in the environment — Uranium in the environment, this page is about the science of uranium in the environment and in animals (including humans). The legal and social issues associated with uranium are discussed elsewhere. This page is a subpage of actinides in the… … Wikipedia
Uranium depletion — is the inescapable result of extracting and consuming uranium since it is a finite resource. The journal Environmental Science and Technology argues that the availability of high grade uranium ore will deplete over time making the fuel more… … Wikipedia
Uranium-lead dating — Uranium lead is one of the oldest and most refined radiometric dating schemes, with a routine age range of about 1 million years to over 4.5 billion years, and with routine precisions in the 0.1 1 percent range. [Parrish, Randall R.; Noble,… … Wikipedia
uranium-234-uranium–238 dating — Method of age determination that makes use of the radioactive decay of uranium 238 to uranium 234; the method can be used for dating sediments from either a marine or a playa lake environment. Because this method is useful for the period с… … Universalium
uranium-234–uranium-238 dating — method of age determination that makes use of the radioactive decay of uranium 238 to uranium 234; the method can be used for dating of sediments from either a marine or a playa lake environment. Because this method is useful for the period … Universalium
uranium-lead dating — noun (geology) A method of determining the age in years of geological material, based on the known decay rate of uranium isotopes to lead isotopes • • • Main Entry: ↑uranium … Useful english dictionary
Uranium mining — The Ranger Uranium Mine in Australia … Wikipedia
Uranium hexafluoride — Chembox new Name = Uranium hexafluoride ImageFile = Uranium hexafluoride 2D.png ImageSize = 125px IUPACName = Uranium hexafluoride Uranium(VI) fluoride Section1 = Chembox Identifiers CASNo = 7783 81 5 Density = 5.09 g/cm3, solid Solubility =… … Wikipedia
uranium-thorium-lead dating — or common lead dating Method of dating very old rocks by means of the amount of common lead they contain. Common lead is any lead from a rock or mineral that contains a large amount of lead and a small amount of the radioactive precursors of lead … Universalium