Importance of establishing sources of uncertainty for the derivation of reliable SHRIMP ages

Australian Journal of Earth Sciences

Volumn 50, Issue 4, 2003, Pages 503-512

  Black, L P ^a   Jagodzinski, E A ^a  

^a GEOSCIENCE AUSTRALIA   (Australia)

Author keywords

Analytical uncertainty; Geochronology; Merrions Formation; SHRIMP; Uranium lead dating; Zircon standards

Indexed keywords

CALIBRATION; DATING METHOD; GEOCHRONOLOGY; INSTRUMENTATION; ION MICROPROBE; SHRIMP DATING; UNCERTAINTY ANALYSIS;

EID: 0242488980     PISSN: 08120099     EISSN: None     Source Type: Journal    
DOI: 10.1046/j.1440-0952.2003.01007.x     Document Type: Article

References (17)

1. BLACK L. P., KAMO S. L., WILLIAMS I. S., MUNDIL R., DAVIS D. W., KORSCH R. J. & FOUDOULIS C. 2003. The application of SHRIMP to Phanerozoic geochronology: a critical appraisal of four zircon standards. Chemical Geology 200, 171-188.
2. 39Ar analysis. In: Berggren W. A., Kent D. V., Aubry M-P. & Hardenbol J. eds. Geochronology, Time Scales and Global Stratigraphic Correlation, pp. 3-21. SEPM (Society for Sedimentary Geology) Special Publication 4.
3. COMPSTON W. 1994. Time points within the Vendian by ion probe. In: Lanphere M. A., Dalrymple G. B. & Turrin B. D. eds. Abstracts of the 8th International Conference on Geochronology, Cosmochronology and Isotope Geology, p. 65. US Geological Survey Circular 1107.
4. COMPSTON W. 1999. Geological age by instrumental analysis: the 29th Hallimond Lecture. Mineralogical Magazine 63, 297-311.
5. COMPSTON W. 2000a. Interpretations of SHRIMP and isotope dilution zircon ages for the geological time-scale. I. The early Ordovician and late Cambrian. Mineralogical Magazine 64, 43-57.
6. COMPSTON W. 2000b. Interpretation of SHRIMP and isotope dilution zircon ages for the Palaeozoic time-scale. II. Silurian to Devonian. Mineralogical Magazine 64, 1127-1146.
7. COMPSTON W. 2001. Effect of Pb loss on the ages of reference zircons QGNG and SL 13, and of volcanic zircons from the Early Devonian Merrions and Turondale Formations, New South Wales. Australian Journal of Earth Sciences 48, 797-803.
8. COMPSTON W. & WILLIAMS I. S. 1992. Ion probe ages for the British Ordovician and Silurian stratotypes. In: Webby B. D. & Laurie J. R. eds. Global Perspectives on Ordovician Geology, pp. 59-67. Balkema, Rotterdam.
9. COMPSTON W., WILLIAMS I. S., KIRSCHVINK J. L., ZHANG Z. & GUOGAN M. A. 1992. Zircon U-Pb ages for the Early Cambrian time-scale. Journal of the Geological Society of London 149, 171-184.
10. COMPSTON W. C., WILLIAMS I. S. & MEYER C. 1984. U-Pb geochronology of zircons from lunar breccia 73217 using a sensitive high mass-resolution ion microprobe. Journal of Geophysical Research 89, B525-B534.
11. 206Pb and U/Pb age determinations with a 10 μm spatial resolution using the ion microprobe mass analyser (IMMA). Chemical Geology 25, 271-303.
12. HOSKIN P. W. O. & BLACK L. P. 2000. Metamorphic zircon formation by solid-state recrystallisation of protolith igneous zircon. Journal of Metamorphic Geology 18, 423-439.
13. JAGODZINSKI E. A. & BLACK L. P. 1999. U-Pb dating of silicic lavas, sills and syneruptive resedimented volcaniclastic deposits of the Lower Devonian Crudine Group, Hill End Trough, New South Wales. Australian Journal of Earth Sciences 46, 749-764.
14. KROGH T. E. 1982. Improved accuracy of Pb/U ages by the creation of more concordant systems using an air abrasion technique. Geochimica et Cosmochimica Acta 46, 637-649.
15. LUDWIG K. R. 2002. SQUID 1.02, a user's manual. Berkeley Geochronological Center Special Publication 2.
16. SAMBRIDGE M. S. & COMPSTON W. 1994. Mixture modelling of multicomponent data sets with application to ion-probe zircon ages. Earth and Planetary Science Letters 128, 373-390.
17. WILLIAMS I. S. & CLAESSON S. 1987. Isotopic evidence for the Precambrian provenance and Caledonian metamorphism of high grade paragneisses from the Seve Nappes, Scandinavian Caledonides. Contributions to Mineralogy and Petrology 97, 205-217.