Hydrogeochemical Characteristics and Geothermometry Applications of Thermal Waters in Coastal Xinzhou and Shenzao Geothermal Fields, Guangdong, China

Table 8

Reservoir temperatures (°C) estimated using selected geothermometers and reservoir depth.

Label	Name	Wellhead temperature (°C)	Quartz, no steam loss, °C [23]	Quartz, °C [24]	Chalcedony, °C [23]	Na-K, °C [25]	Na-K-Ca, °C [26]	K-Mg, °C (Giggenbach et al., 1983)	Na–Li, °C [27]	Reservoir depth (km)
In Xinzhou geothermal field
XH01	New hole	95	181	182	154	218	143	148	219	3.55–4.10
XH02	Dun	95	183	183	156	212	148	169	200	3.59–4.14
XH03	Ta	98	185	186	158	222	144	161	229	3.64–4.20
XH04	Jia	98	182	183	156	212	148	169	203	3.58–4.13
XH05	Dongwei	71	180	181	154	215	150	164	198	3.54–4.08
XH06	Dongmao	60	176	176	149	212	147	152	190	3.43–3.96
XH08	Xiting	87	180	181	154	212	145	165	199	3.54–4.08
XH09	Dongtang	79	178	178	151	217	146	154	214	3.47–4.00
In Shenzao geothermal field
SH01	Shenan	81	169	170	142	225	149	143	227	3.29–3.80
SH02	Shenzhong	82	175	176	148	252	152	145	150	3.43–3.95
SH03	Shenli	80	177	177	150	255	152	142	151	3.46–3.99
SH04	Shenhai	81	171	171	144	233	147	139	243	3.33–3.84