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High precision U-Pb zircon ages for Mesozoic igneous rocks from Hong Kong

Sewell, R.J.; Davis, D.W.; Campbell, S.D.G.. 2012 High precision U-Pb zircon ages for Mesozoic igneous rocks from Hong Kong. Journal of Asian Earth Sciences, 43 (1). 164-175. 10.1016/j.jseaes.2011.09.007

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Abstract/Summary

Sixteen new high precision U–Pb zircon ages are reported from Jurassic and Early Cretaceous silicic volcanic and plutonic rocks of HongKong. When combined with the existing age dataset, the new ages constrain more tightly the timing of major periods of volcanism and plutonism at 162.6 ± 4.5 Ma, 146.7 ± 1.1 Ma, 143.0 ± 1.0 Ma and 140.8 ± 0.6 Ma. However, two ages of 151.9 ± 0.2 Ma and 148.1 ± 0.2 Ma, from eastern New Territories and southern HongKong indicate additional and therefore more continuous, albeit pulsed, magmatic activity than previously thought.

Item Type: Publication - Article
Digital Object Identifier (DOI): 10.1016/j.jseaes.2011.09.007
Programmes: BGS Programmes 2010 > Geology and Landscape (Scotland)
Date made live: 05 Mar 2012 16:02
URI: http://nora.nerc.ac.uk/id/eprint/17082

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