Use and abuse of crust-formation ages

Research Article| October 01, 1987 Use and abuse of crust-formation ages Nicholas T. Arndt; Nicholas T. Arndt 1Max-Planck-Institut für Chemie, Saarstrasse 23, Postfach 3060, D-6500 Mainz, Federal Republic of Germany Search for other works by this author on: GSW Google Scholar Steven L. Goldstein Steven L. Goldstein 1Max-Planck-Institut für Chemie, Saarstrasse 23, Postfach 3060, D-6500 Mainz, Federal Republic of Germany Search for other works by this author on: GSW Google Scholar Author and Article Information Nicholas T. Arndt 1Max-Planck-Institut für Chemie, Saarstrasse 23, Postfach 3060, D-6500 Mainz, Federal Republic of Germany Steven L. Goldstein 1Max-Planck-Institut für Chemie, Saarstrasse 23, Postfach 3060, D-6500 Mainz, Federal Republic of Germany Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1987) 15 (10): 893–895. https://doi.org/10.1130/0091-7613(1987)15<893:UAAOCA>2.0.CO;2 Article history First Online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Nicholas T. Arndt, Steven L. Goldstein; Use and abuse of crust-formation ages. Geology 1987;; 15 (10): 893–895. doi: https://doi.org/10.1130/0091-7613(1987)15<893:UAAOCA>2.0.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract Samarium-neodymium (Sm-Nd) isotopic studies can be used to evaluate the history of crustal growth and sometimes to give "crust-formation" ages, which reflect the time of differentiation of crust from the mantle. If, however, a sample is a mixture of material derived from the mantle at different times, Sm-Nd systematics may provide only an estimate of the average time that the material in the sample has been resident in the continental crust. In such cases, Sm-Nd isotopes give no direct information on the timing of crustal formation. These ages can be interpreted as the time of crust-mantle segregation only if supported by other geologic and geochronological information. Misinterpretation can lead to false conclusions about the history of crustal development. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.