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  • ...te materials, for which [[radiocarbon dating]] does not work well, such as minerals (e.g. [[carbonate]]s, [[silicate]]s, [[Sulfate|sulphates]]), inorganic biol ...-first=Michinari|doi-access=free }}</ref> and sometimes to [[Mining|mine]] minerals.<ref>{{Cite journal |last1=Sharaf |first1=M.A. |last2=Hassan |first2=Gamal ...
    13 KB (1,858 words) - 22:01, 30 December 2024
  • ...n be used to determine the types and distribution of minerals in slag. The minerals present in the slag are good indicators of the gas atmosphere in the furnac Slag minerals are classified as [[silicate]]s, [[oxide]]s and [[sulfide]]s. Bachmann clas ...
    15 KB (2,230 words) - 18:52, 27 October 2023
  • ...trapped electrons in quartz or feldspar. In the natural environment, these minerals store [[Elementary charge|electron charges]] as they cool below their closu ...ssion Track]], Zircon [[Fission track dating|Fission Track]], and (Uranium-Thorium)/ [[Helium dating]]) could not adequately track the geological age records ...
    30 KB (4,543 words) - 21:38, 26 February 2025
  • Some elements like potassium, uranium, and [[thorium]] are naturally radioactive and give off gamma rays as they decay. Electrom ...of their high carbon content. In these meteorites, chondrules coexist with minerals that are only stable below 100&nbsp;°C, so they contain materials that form ...
    11 KB (1,722 words) - 00:08, 19 October 2024
  • ...st4=Christophe|date=1993|title=Mobilization and redistribution of REEs and thorium in a syenitic lateritic profile: A mass balance study|journal=Geochimica et ...st1=Kanazawa|first1=Y.|last2=Kamitani|first2=M.|date=2006|title=Rare earth minerals and resources in the world.|journal=Journal of Alloys and Compounds|volume= ...
    33 KB (4,629 words) - 18:56, 14 October 2024
  • ...stituent of most sands. Zircons contain trace amounts of [[uranium]] and [[thorium]] and can be dated using several modern analytical techniques. ...s which gives supplementary information, such as [[hafnium]] (Hf), uranium/thorium (U/Th) ratio.<ref name=":1" /> ...
    41 KB (5,547 words) - 05:29, 22 November 2024
  • ...tudy of the chemical nature of products of artificial decay of uranium and thorium, which became possible due to irradiation of their preparations at the cycl ...tivity: "...For us it is not completely indifferent at all how radioactive minerals of Russia will be studied... Now, when mankind is entering a new age of rad ...
    52 KB (7,955 words) - 01:02, 9 February 2025
  • ...ht=1.35|A schematic clockwise P-T-t path. [[Metamorphic rock|Metamorphic]] minerals alter with the changing P-T condition with time without reaching complete [ ...past P-T conditions that the rock has experienced, and investigating these minerals can supply information about the past [[Metamorphic rock|metamorphic]] and ...
    64 KB (8,881 words) - 17:42, 11 June 2024
  • ...t minerals like quartz and mica can be moved faster and further than heavy minerals (like zircon and tourmaline). === Resolving provenance problems by dating detrital minerals === ...
    54 KB (7,416 words) - 03:38, 17 February 2025
  • ...onazite minerals contain significant amounts of [[radioactive]] elements [[Thorium|Th]] and [[Uranium|U]], which trigger radioactive processes. These two elem ...Th-Pb system is higher than 800&nbsp;°C, much higher than the other common minerals.<ref name="Smith1997">Smith, H. A., & Giletti, B. J. (1997). Lead diffusion ...
    56 KB (7,967 words) - 03:37, 9 August 2024
  • Some minerals are double salts, for example [[Nickelzippeite]] Ni<sub>2</sub>(UO<sub>2</s |nickel thorium nitrate ...
    44 KB (5,892 words) - 11:45, 3 January 2024
  • ...xes in the ocean based on the quantitative association of POC with ballast minerals|year = 2001|last1 = Armstrong|first1 = Robert A.|last2 = Lee|first2 = Cindy ...hat CaCO<sub>3</sub>, which has the largest density among possible ballast minerals, is globally the most important and effective facilitator of vertical POC t ...
    42 KB (5,834 words) - 04:50, 27 July 2024
  • ...rassmann |title=Nachweis der Entstehung aktiver Bariumisotope aus Uran und Thorium durch Neutronenbestrahlung; Nachweis weiterer aktiver Bruchstücke bei der U ...ns of [[Becquerel|Becquerel rays]], and in April 1898 also found them in [[thorium]]. She gave the phenomenon the name "radioactivity".<ref>{{cite web |title= ...
    100 KB (14,393 words) - 05:05, 9 February 2025
  • ...#f8f8f8; border-right:1px solid #f8f8f8; border-bottom:2px dashed black"|[[Thorium|Th]] ...ng light metals (composites, laminates, etc.)"<ref name="TMS">{{harvnb|The Minerals, Metals and Materials Society|2016}}</ref> ...
    150 KB (21,966 words) - 01:31, 25 February 2025
  • | [[thorium|Th]]||[[protactinium|Pa]]||[[uranium|U]]||[[neptunium|Np]]||[[Plutonium|Pu] ...s drink]] is designed to be [[Isotonicity|isotonic]] and also contains the minerals which are lost in [[perspiration]]. ...
    71 KB (10,784 words) - 22:25, 1 May 2024