3
views
0
recommends
+1 Recommend
1 collections
    0
    shares
      • Record: found
      • Abstract: not found
      • Article: not found

      Provenance of Upper Jurassic–Lower Cretaceous strata in the Mentelle Basin, southwestern Australia, reveals a trans-Gondwanan fluvial pathway

      , , , ,
      Gondwana Research
      Elsevier BV

      Read this article at

      ScienceOpenPublisher
      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Related collections

          Most cited references75

          • Record: found
          • Abstract: not found
          • Article: not found

          THREE NATURAL ZIRCON STANDARDS FOR U-TH-PB, LU-HF, TRACE ELEMENT AND REE ANALYSES

            Bookmark
            • Record: found
            • Abstract: found
            • Article: not found

            Calibration of the Lutetium-Hafnium Clock

            E. Scherer (2001)
            Well-defined constants of radioactive decay are the cornerstone of geochronology and the use of radiogenic isotopes to constrain the time scales and mechanisms of planetary differentiation. Four new determinations of the lutetium-176 decay constant (lambda176Lu) made by calibration against the uranium-lead decay schemes yield a mean value of 1.865 +/- 0.015 x 10(-11) year(-1), in agreement with the two most recent decay-counting experiments. Lutetium-hafnium ages that are based on the previously used lambda176Lu of 1.93 x 10(-11) to 1.94 x 10(-11) year(-1) are thus approximately 4% too young, and the initial hafnium isotope compositions of some of Earth's oldest minerals and rocks become less radiogenic relative to bulk undifferentiated Earth when calculated using the new decay constant. The existence of strongly unradiogenic hafnium in Early Archean and Hadean zircons implies that enriched crustal reservoirs existed on Earth by 4.3 billion years ago and persisted for 200 million years or more. Hence, current models of early terrestrial differentiation need revision.
              Bookmark
              • Record: found
              • Abstract: not found
              • Article: not found

              TEMORA 1: a new zircon standard for Phanerozoic U–Pb geochronology

                Bookmark

                Author and article information

                Journal
                Gondwana Research
                Gondwana Research
                Elsevier BV
                1342937X
                May 2021
                May 2021
                : 93
                : 128-141
                Article
                10.1016/j.gr.2020.12.032
                d8019184-03b9-4d82-b736-caaeff3c5735
                © 2021

                https://www.elsevier.com/tdm/userlicense/1.0/

                History

                Comments

                Comment on this article