The Distribution and Composition Characteristics of Siliceous Rocks from Qinzhou Bay-Hangzhou Bay Joint Belt, South China: Constraint on the Tectonic Evolution of Plates in South China

Table 2

Major element analysis data for siliceous rocks from Dongxiang area (%).

No.	SiO2	TiO2	Al2O3	Fe2O3	FeO	MnO	MgO	CaO	Na2O	K2O	P2O5	LOI	Total
DX013a	79.10	0.15	8.66	2.00	1.76	0.11	2.50	0.50	1.30	1.87	0.07	1.79	99.81
DX013b	80.35	0.17	8.54	2.20	1.75	0.12	1.42	0.53	1.32	1.65	0.08	1.65	99.78
DX015	79.49	0.20	9.71	1.30	1.56	0.05	0.75	0.39	3.00	1.89	0.07	1.35	99.76
DX016	77.13	0.22	10.12	2.20	2.06	0.10	1.15	0.58	3.52	0.82	0.08	2.06	100.04
DX020	79.44	0.19	9.30	2.23	1.70	0.10	1.72	0.53	0.93	1.66	0.09	1.94	99.82
DX024	79.67	0.20	8.93	1.41	2.15	0.09	0.73	0.51	1.10	2.78	0.08	2.46	100.11
DX025	79.48	0.13	5.56	1.33	2.10	0.32	1.27	2.48	0.65	1.25	0.07	5.16	99.80
DX026	82.84	0.11	5.20	2.20	1.58	0.27	0.76	1.27	0.49	0.48	0.07	4.60	99.87
DX027	78.82	0.23	13.26	1.55	0.52	0.01	0.51	0.38	0.66	1.54	0.07	2.19	99.73
DX028	87.80	0.10	5.65	1.48	0.46	0.12	0.60	0.54	0.71	1.04	0.07	1.27	99.84
Aver.	80.41	0.17	8.49	1.79	1.56	0.13	1.14	0.77	1.37	1.50	0.07	2.45	99.86