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Table 4 Geothermal gradient of borehole in YHGF

From: Geochemical and H–O–Sr–B isotope signatures of Yangyi geothermal fields: implications for the evolution of thermal fluids in fracture-controlled type geothermal system, Tibet, China

borehole No

Depth(m)

G(℃/100 m)

G0(℃/100 m)

ZK100

55

6.36

6.48

201

13.15

798

4.86

ZK300

349

47.85

23.5

407

1.72

834

6.56

ZK208

103

109.22

59.78

217

56.14

270

18.87

317

6.38