Enhanced U-Pb detrital zircon, Lu-Hf zircon, δ 18 O zircon, and Sm-Nd whole rock global databases.

Autor: Puetz SJ; Unaffiliated, 475 Atkinson Drive, Suite 704, Honolulu, HI, 96814, USA. puetz.steve@gmail.com., Spencer CJ; Queen's University, Department of Geological Sciences and Geological Engineering, Kingston, Ontario, K7L 3N6, Canada., Condie KC; New Mexico Institute of Mining and Technology, Socorro, NM, 87801, USA., Roberts NMW; British Geological Survey, Geochronology and Tracers Facility, Keyworth, Nottingham, NG12 5GG, UK.
Jazyk: angličtina
Zdroj: Scientific data [Sci Data] 2024 Jan 09; Vol. 11 (1), pp. 56. Date of Electronic Publication: 2024 Jan 09.
DOI: 10.1038/s41597-023-02902-9
Abstrakt: High-quality global isotopic databases provide Earth scientists with robust means for developing and testing a variety of geological hypotheses. Database design establishes the range of questions that can be addressed, and validation techniques can enhance data quality. Here, six validated global isotopic databases provide extensive records of analyses from U-Pb in detrital zircon, Lu-Hf in zircon, Sm-Nd from whole rocks, and δ 18 O in zircon. The U-Pb detrital zircon records are segregated into three independently sampled databases. Independent samples are critical for testing the replicability of results, a key requisite for gaining confidence in the validity of a hypothesis. An advantage of our updated databases is that a hypothesis developed from one of the global detrital zircon databases can be immediately tested with the other two independent detrital zircon databases to assess the replicability of results. The independent εHf(t) and εNd(t) values provide similar means of testing for replicable results. This contribution discusses database design, data limitations, and validation techniques used to ensure the data are optimal for subsequent geological investigations.
(© 2024. The Author(s).)
Databáze: MEDLINE
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