测点号

含量(ppm)

比值

年龄(Ma)

Pb

Th

U

Th/U

²⁰⁷Pb/ ²³⁵U

²⁰⁶Pb/ ²³⁸U

²⁰⁸Pb/ ²³²Th

²³⁸U/

²³²Th

²⁰⁷Pb/

²³⁵U

²⁰⁷Pb/

²³⁵U

²⁰⁶Pb/

²³⁸U

²⁰⁶Pb/

²³⁸U

²⁰⁸Pb/

²³²Th

²⁰⁸Pb/

²³²Th

Age

1sigma

Age

1sigma

Age

1sigma

FN-01

203.12

7443.96

2494.99

2.98

0.2312 ± 0.0085

0.0316 ± 0.001

0.011 ± 0.0004

0.8495

211

7

201

6.2

221

8.2

FN-02

91.31

1744.74

1597.35

1.09

0.2371 ± 0.0091

0.0319 ± 0.001

0.0104 ± 0.0004

0.4833

216

7.5

203

6.4

208

8.4

FN-03

192.96

3841.18

3166.27

1.21

0.2512 ± 0.0096

0.0353 ± 0.0012

0.0112 ± 0.0005

0.6773

228

7.8

224

7.5

224

9.4

FN-04

128.35

3681.29

1907

1.93

0.2426 ± 0.0099

0.0331 ± 0.0011

0.0102 ± 0.0004

0.552

221

8.1

210

6.9

204

8.2

FN-05

367.28

11072.2

5174.4

2.14

0.2508 ± 0.0105

0.034 ± 0.0013

0.0114 ± 0.0006

0.5275

227

8.5

215

7.8

229

12.7

FN-06

614.95

13390.27

8921.68

1.5

0.2337 ± 0.0088

0.033 ± 0.0011

0.0102 ± 0.0005

0.5665

213

7.3

210

6.8

205

11

FN-07

104.99

2828.55

1566.07

1.81

0.262 ± 0.0103

0.0346 ± 0.0012

0.0107 ± 0.0006

0.4625

236

8.3

219

7.2

214

11.2

FN-08

359.18

12077.92

3938.66

3.07

0.2475 ± 0.0111

0.0356 ± 0.0014

0.0111 ± 0.0005

0.4328

225

9

226

8.9

223

10.9

FN-09

74.34

2393.63

872.44

2.74

0.2453 ± 0.0089

0.0334 ± 0.0011

0.0104 ± 0.0004

0.6045

223

7.3

212

6.7

208

8.9

FN-10

480.53

12236.11

5969

2.05

0.2515 ± 0.0116

0.0341 ± 0.0012

0.0103 ± 0.0004

0.563

228

9.5

216

7.3

206

8.9

FN-11

90.33

3266.66

1032.39

3.16

0.2359 ± 0.0097

0.0332 ± 0.0011

0.0105 ± 0.0004

0.4264

215

8

210

6.9

210

8.1

FN-12

176.39

5522.63

2351.38

2.35

0.2788 ± 0.0163

0.0356 ± 0.0014

0.0121 ± 0.0006

0.5714

250

13

225

8.8

243

11.2

FN-13

335.68

9087.45

4957.87

1.83

0.2442 ± 0.01

0.035 ± 0.0012

0.0107 ± 0.0004

0.3862

222

8.1

222

7.6

215

8.4

FN-14

352.41

14432.51

4679.61

3.08

0.2358 ± 0.0101

0.0347 ± 0.0011

0.0103 ± 0.0004

0.463

215

8.3

220

7.1

207

8.2

FN-15

33.09

21.46

84.9

0.25

4.9978 ± 0.2322

0.3192 ± 0.0116

0.0883 ± 0.0056

4.4831

1819

39.3

1786

56.6

1711

105