An example of low-Th/U zircon overgrowths of magmatic origin in a late orogenic Variscan intrusion: the San Ciprián massif (NW Spain)
收藏Geological Society of London research repository2016-06-21 更新2026-05-11 收录
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https://geolsoc.figshare.com/articles/dataset/An_example_of_low-Th_U_zircon_overgrowths_of_magmatic_origin_in_a_late_orogenic_Variscan_intrusion_the_San_Cipri_n_massif___NW_Spain_/3454124/1
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资源简介：
Th/U values in zircon are commonly used to discriminate between metamorphic (Th/U 0.1) origin for zircon overgrowths. We test this hypothesis in the San Ciprián massif, a late orogenic granitic intrusion in the hinterland of the Variscan orogeny. Zircon grains from this granite have cores with inherited Ediacaran ages and Th/U > 0.1, whereas zircon mantles yield an age of about 287 Ma, interpreted as the time of crystallization of the granite, and have Th/U
创建时间：
2016-06-21
