A method to characterize turquoise deposits in china using sedimentary environment sensitive elements

Heritage Science

Table 1 Ratios of rare earth elements of turquoise in Qinling, Hami and Maanshan zone in China

Mineralization zone	Qinling						Hami		Maanshan
Mineralization zone	South zone				Middle zone	North zone	Hami		Maanshan
Deposit	Yungaisi	Lamadong	Baihe	Yueertan	Xichuan	Luonan	Heishanling	Tianhudong	Bijiashan
∑REE + Y (ppm)	14.09–289.72	9.57–328.73	7.22–154.92	7.44–16.75	15.82–599.07	5.69–21.46	3.11–212.33	4.42–158.42	2.62–102.04
(La/Yb)_UC	0.05–0.88	0.05–2.94	0.02–0.39	0.03–0.22	0.03–1.08	0.14–0.45	0.05–3.65	0.02–2.94	0.17–17.74
(La/Sm)_UC	0.03–0.31	0.12–0.62	0.06–0.32	0.20–0.26	0.08–0.50	0.09–0.20	0.11–1.24	0.04–0.74	0.26–2.89
(Gd/Lu)_UC	0.65–4.20	0.42–4.47	0.56–1.75	0.42–1.31	0.62–4.96	2.05–2.76	0.86–8.75	0.60–4.89	0.74–7.27
(Ce/Ce*)_UC	0.30–0.74	0.30–0.46	0.52–0.73	0.64–0.66	0.30–0.53	0.54–0.71	0.61–0.90	0.54–0.70	0.87–0.99
(Ce/Ce*)_CN	0.34–0.81	0.33–0.53	0.60–0.81	0.71–0.72	0.34–0.56	0.60–0.79	0.67–0.89	0.62–0.75	0.86–0.95
(Eu/Eu*)_UC	1.06–1.21	0.87–1.03	0.91–1.48	0.85–1.22	0.59–1.32	1.02–1.06	0.63–3.75	0.91–3.47	0.62–1.94

Most of these data are from the authors’ group, and a few are from other scholars [14, 23]