khantaishir_Hf | R Documentation |
A dataset of in-situ (LA ICP-MS) Lu–Hf isotopic analyses and U–Pb ages for zircons from the Cambrian Khantaishir Magmatic Complex (Lake Zone, south-central Mongolia) (Janoušek et al. 2018).
sampleDataset("khantaishir_Hf")
A data frame containing 111 zircon analyses (Lu–Hf isotopic ratios and U–Pb ages) from 5 samples of mafic–intermediate plutonic rocks.
The Cambrian Khantaishir Magmatic Complex (Lake Zone, Mongolia) exposes a section of a magmatic arc system consisting of deep crustal, (ultra-)mafic cumulates (coarse-grained amphibole gabbros and hornblendites) to shallower crustal levels dominated by amphibole–biotite tonalites. These Hf in zircon isotopic data, together with whole-rock Sr–Nd isotopic compositions, point mostly to juvenile sources, with little, if any, mature crustal contribution (Janoušek et al. 2018).
Hf.r
Vojtěch Janoušek, vojtech.janousek@geology.cz
Janoušek V, Jiang YD, Buriánek D, Schulmann K, Hanžl P, Soejono I, Kröner A, Altanbaatar B, Erban V, Lexa O, Ganchuluun T, Košler J (2018) Cambrian–Ordovician magmatism of the Ikh-Mongol Arc System exemplified by the Khantaishir Magmatic Complex (Lake Zone, south–central Mongolia). Gondwana Res 54:122-149. doi: 10.1016/j.gr.2017.10.003
sampleDataset("khantaishir_Hf") groupsByLabel("sample") head(Hfinit) hfAgeEps2(1:39, xmax = 1.5, ymin = -8, ymax = 16, evol.lines1 = TRUE) hfViolinplot("EpsHfi")