⁴⁰Ar/³⁹Ar

³⁸Ar/³⁹Ar

(10^-2)

³⁷Ar/³⁹Ar

(10^-2)

³⁶Ar/³⁹Ar

(10^-3)

³⁹Ar

(10^-14 mol)

Cumulative

³⁹Ar (%)

%⁴⁰Ar*

⁴⁰Ar*/³⁹Ar_K

Calculated Age (Ma) ± 1 s.d.

K/Ca

41.87

5.14

24.62

116

1.61

1.87

18.5

7.728

94.2 ± 6.1

2.0

13.48

2.35

22.96

6.90

1.99

4.17

84.8

11.44

137.6 ± 0.8

2.2

19.59

2.22

40.68

5.53

4.02

8.83

91.7

17.96

211.7 ± 0.8

1.2

26.04

1.45

79.07

2.96

8.33

18.5

96.8

25.21

290.6 ± 0.5

0.6

31.02

1.24

6.68

2.07

5.82

25.2

98.0

30.39

344.9 ± 0.4

7.4

33.98

1.25

3.09

1.85

9.24

36.0

98.3

33.41

375.8 ± 0.3

16

36.41

1.30

3.02

2.41

6.60

43.6

98.0

35.68

398.7 ± 0.5

16

39.48

1.29

2.62

3.31

8.34

53.3

97.5

38.48

426.5 ± 0.4

19

41.23

1.27

2.04

3.57

8.46

63.1

97.4

40.15

443.0 ± 0.5

24

41.88

1.27

1.58

2.79

10.6

75.4

98.0

41.03

451.6 ± 0.7

31

43.31

1.29

1.78

2.45

12.3

89.6

98.3

42.56

466.4 ± 0.4

28

45.94

1.42

4.64

5.41

5.81

96.4

96.5

44.32

483.3 ± 0.6

11

57.46

3.22

47.47

46.8

3.13

100

76.0

43.66

477.0 ± 1.9

1.0

Totals

35.38

395.3 ± 0.7

25

⁴⁰Ar/³⁹Ar

³⁷Ar/³⁹Ar

(10^-2)

³⁶Ar/³⁹Ar

(10^-3)

³⁹Ar

(10^-14 mol)

Cumulative

³⁹Ar (%)

%⁴⁰Ar*

⁴⁰Ar*/³⁹Ar_K

Calculated Age (Ma) ± 1 s.d.

K/Ca

22.81

0.7587

28.95

4.46

3.8

62.3

14.22

140.7 ± 2.7

69

20.53

0.2557

13.41

4.81

7.8

80.6

16.54

162.6 ± 1.6

206

22.67

0.2814

7.730

8.08

14.7

89.8

20.36

198.2 ± 1.8

187

24.33

0.2400

5.569

13.1

25.7

93.1

22.65

219.2 ± 1.3

219

29.12

0.0011

3.562

29.4

50.6

96.3

28.03

267.6 ± 0.6

-

33.44

0.6619

3.283

7.87

57.2

97.0

32.44

306.3 ± 1.1

79

34.72

0.5593

2.159

9.04

64.9

98.1

34.05

320.2 ± 2.4

94

36.88

0.3826

2.610

9.55

72.9

97.8

36.08

337.6 ± 1.6

138

38.61

0.9911

4.284

9.03

80.6

96.6

37.32

348.2 ± 1.2

53

39.61

1.061

2.834

7.22

86.7

97.8

38.74

360.2 ± 0.7

50

38.69

2.019

3.471

6.53

92.2

97.3

37.64

350.9 ± 2.2

26

37.89

4.421

3.089

3.10

94.8

97.5

36.95

345.0 ± 4.7

12

38.16

18.39

5.445

2.06

96.5

95.8

36.53

341.5 ± 3.7

2.9

36.43

24.01

11.18

1.48

97.8

90.9

33.12

312.2 ± 2.3

2.2

29.42

91.41

9.068

2.63

100.0

91.1

26.83

256.9 ± 3.5

0.6

Totals

29.64

281.8 ± 1.5

80

21.83

0.06159

3.110

3.28

3.4

57.8

12.60

126.1 ± 3.1

855

23.88

0.8157

1.812

2.55

6.0

77.5

18.49

182.2 ± 6.6

65

25.88

0.8739

1.655

5.95

12.1

81.0

20.94

205.0 ± 2.0

60

24.97

1.863

0.3725

7.57

19.8

95.5

23.87

231.9 ± 1.8

28

29.10

0.2748

0.3279

11.1

31.2

96.6

28.11

270.2 ± 0.5

192

33.06

0.1136

0.1800

8.50

39.9

98.3

32.50

309.0 ± 1.5

463

36.31

0.7777

0.1654

9.31

49.4

98.6

35.72

336.8 ± 1.3

68

39.33

0.0213

0.05973

9.61

59.2

99.5

39.13

366.0 ± 1.1

2463

41.87

0.5542

0.2759

8.12

67.5

98.0

40.99

381.7 ± 1.9

95

43.12

0.8173

0.0829

8.21

75.9

99.4

42.85

397.2 ± 0.9

65

42.88

0.8931

0.1387

7.86

84.0

99.0

42.44

393.8 ± 1.7

59

42.79

1.736

0.1954

9.16

93.4

98.6

42.14

391.3 ± 1.1

30

40.83

20.80

0.4068

6.49

100.0

97.0

39.64

370.3 ± 1.7

2.5

Totals

34.31

324.7 ± 1.6

368

⁴⁰Ar/³⁹Ar

³⁸Ar/³⁹Ar

(10^-2)

³⁷Ar/³⁹Ar

(10^-2)

³⁶Ar/³⁹Ar

(10^-3)

³⁹Ar

(10^-14 mol)

Cumulative

³⁹Ar (%)

%⁴⁰Ar*

⁴⁰Ar*/³⁹Ar_K

Calculated Age (Ma) ± 1 s.d.

K/Ca

192.0

22.54

3.842

627.3

0.300

0.37

3.47

6.665

81.4 ± 15.1

13

87.44

10.85

2.957

271.3

0.976

1.57

8.30

7.258

88.4 ± 5.1

17

68.08

7.536

2.820

206.9

1.47

3.38

10.2

6.929

84.5 ± 3.7

18

26.59

2.876

2.554

50.24

4.57

9.00

44.1

11.72

140.7 ± 1.6

19

18.86

1.510

2.375

4.370

8.50

19.5

93.0

17.54

206.8 ± 0.3

21

26.64

1.291

1.909

3.155

10.9

32.9

96.4

25.69

295.3 ± 0.2

26

34.75

1.243

1.561

2.972

10.6

46.0

97.4

33.85

379.8 ± 0.5

32

41.12

1.260

1.325

3.705

7.71

55.5

97.3

40.00

441.0 ± 0.7

37

46.21

1.292

1.184

5.960

6.55

63.5

96.1

44.42

483.7 ± 0.6

42

50.53

1.387

1.101

10.35

6.27

71.3

93.9

47.45

512.4 ± 0.7

45

54.22

1.423

0.9858

12.63

6.64

79.4

93.1

50.47

540.6 ± 1.1

50

52.99

1.352

0.8306

7.991

6.66

87.6

95.5

50.61

541.9 ± 0.7

60

51.82

1.249

0.7051

2.470

5.28

94.1

98.5

51.06

546.1 ± 0.9

70

50.74

1.273

0.8535

1.871

3.14

98.0

98.9

50.16

537.8 ± 2.4

58

53.13

2.339

3.246

25.91

1.62

100

85.5

45.46

493.6 ± 3.5

15

Totals

36.09

402.4 ± 0.9

38

82.48

7.271

1.014

267.6

0.741

0.77

4.09

3.376

41.7 ± 11.7

49

22.83

2.595

1.023

54.26

1.85

2.70

29.7

6.770

82.6 ± 2.1

48

9.449

1.486

1.082

1.637

4.45

7.34

94.6

8.941

108.3 ± 0.2

46

12.26

1.474

1.073

0.8848

8.01

15.7

97.7

11.98

143.7 ± 0.2

46

18.19

1.231

0.8170

0.6724

11.4

27.6

98.8

17.96

211.4 ± 0.2

61

23.63

1.209

0.6868

0.6177

11.8

39.9

99.1

23.42

271.0 ± 0.2

72

28.28

1.198

0.5823

0.5416

10.2

50.5

99.3

28.09

320.6 ± 0.3

85

32.51

1.187

0.4945

0.4753

8.52

59.4

99.5

32.34

364.5 ± 0.4

100

36.79

1.202

0.4320

0.5126

8.93

68.7

99.5

36.62

407.6 ± 0.6

115

42.62

1.209

0.3804

0.6444

6.78

75.8

99.5

42.40

464.3 ± 0.3

130

47.76

1.228

0.3744

0.7061

5.62

81.6

99.5

47.53

513.1 ± 0.7

132

51.46

1.230

0.4460

0.7838

5.08

87.0

99.5

51.20

547.3 ± 0.5

111

54.78

1.243

0.7306

0.9622

4.21

91.3

99.4

54.47

577.2 ± 0.7

68

58.11

1.474

7.468

4.882

8.30

100

97.5

56.65

596.9 ± 0.5

6.6

Totals

31.66

357.5 ± 0.5

78

21.83

2.365

0.3664

45.14

3.51

2.75

38.8

8.468

103.0 ± 1.7

135

11.88

1.590

0.3669

4.375

4.84

6.53

88.9

10.57

127.6 ± 0.3

135

14.23

1.486

0.3403

2.358

11.5

15.5

94.9

13.51

161.6 ± 0.2

145

18.02

1.244

0.2364

1.688

11.7

24.7

97.1

17.49

206.6 ± 0.2

209

22.09

1.207

0.1780

1.720

20.9

41.0

97.6

21.56

251.4 ± 0.4

278

25.39

1.214

0.1598

2.149

10.1

48.9

97.4

24.73

285.6 ± 0.3

310

29.23

1.254

0.1506

3.696

16.1

61.5

96.2

28.11

321.4 ± 0.4

329

35.51

1.318

0.1245

7.157

12.3

71.1

94.0

33.37

375.6 ± 0.5

397

42.24

1.428

0.1546

11.61

10.4

79.2

91.8

38.78

429.8 ± 0.5

320

44.00

1.299

0.1466

4.307

7.57

85.1

97.1

42.70

468.0 ± 0.5

338

46.47

1.258

0.2044

1.568

10.6

93.4

98.9

45.98

499.4 ± 0.5

242

47.84

1.297

0.3441

1.814

4.02

96.5

98.8

47.28

511.7 ± 1.4

144

56.40

2.436

1.384

39.86

4.42

100

79.1

44.59

486.2 ± 2.2

36

Totals

28.17

322.0 ± 0.5

262

25.02

3.870

6.123

62.71

2.64

2.26

25.9

6.474

79.3 ± 0.8

8.1

15.69

2.461

12.37

27.92

5.77

7.21

47.3

7.424

90.6 ± 0.9

4.0

12.20

1.617

4.677

3.398

8.25

14.3

91.6

11.17

134.7 ± 0.1

11

17.98

1.634

15.73

2.731

12.0

24.6

95.4

17.17

203.0 ± 0.2

3.1

26.95

1.418

25.37

2.358

10.8

33.8

97.4

26.25

301.8 ± 0.2

2.0

33.02

1.311

11.23

1.834

12.0

44.1

98.3

32.46

366.4 ± 0.4

4.4

36.88

1.242

1.507

1.546

9.15

51.9

98.7

36.40

406.2 ± 0.2

33

39.11

1.242

1.332

1.470

9.10

59.7

98.8

38.65

428.5 ± 0.3

37

40.81

1.275

1.224

1.724

9.10

67.5

98.7

40.27

444.5 ± 0.4

40

43.25

1.266

0.9687

1.835

9.75

75.9

98.7

42.69

467.9 ± 0.5

51

45.12

1.276

1.027

1.699

6.77

81.7

98.8

44.59

486.2 ± 0.5

48

46.32

1.300

1.295

1.354

5.60

86.5

99.1

45.89

498.6 ± 0.7

38

47.33

1.325

1.955

1.542

5.85

91.5

99.0

46.85

507.7 ± 0.7

25

47.46

2.541

14.74

14.41

9.92

100

91.0

43.19

472.8 ± 0.6

3.4

Totals

32.21

363.8 ± 0.4

21

⁴⁰Ar/³⁹Ar

³⁸Ar/³⁹Ar

(10^-2)

³⁷Ar/³⁹Ar

(10^-2)

³⁶Ar/³⁹Ar

(10^-3)

³⁹Ar

(10^-14 mol)

Cumulative

³⁹Ar (%)

%⁴⁰Ar*

⁴⁰Ar*/³⁹Ar_K

Calculated Age (Ma) ± 1 s.d.

K/Ca

52.41

7.819

1.617

152.3

2.50

1.56

14.1

7.374

89.9 ± 4.1

31

11.30

4.071

1.749

3.180

5.04

4.71

91.5

10.34

124.8 ± 0.3

28

17.08

3.410

1.989

2.322

6.78

8.95

95.8

16.37

193.7 ± 0.2

25

25.48

1.384

0.6667

0.9407

19.1

20.9

98.8

25.18

290.0 ± 0.3

74

31.93

1.315

0.4472

0.7544

23.7

35.7

99.2

31.68

357.9 ± 0.3

111

37.00

1.323

0.3635

0.8491

25.3

51.5

99.3

36.72

408.8 ± 0.4

136

39.58

1.284

0.3120

1.271

15.5

61.2

99.0

39.18

433.1 ± 0.5

159

40.65

1.300

0.2986

1.623

16.9

71.7

98.8

40.15

442.6 ± 0.4

166

41.68

1.303

0.3707

1.717

24.4

86.9

98.7

41.15

452.4 ± 0.4

134

42.57

1.367

0.5917

2.182

16.9

97.5

98.4

41.90

459.7 ± 0.5

84

65.31

3.996

11.09

76.09

4.04

100

65.5

42.81

468.5 ± 0.5

4.5

Totals

34.42

385.7 ± 0.5

111

51.43

7.174

1.712

153.3

2.02

1.54

11.9

6.106

74.7 ± 4.8

29

9.943

3.984

2.015

3.597

3.68

4.35

89.1

8.856

107.4 ± 0.3

25

14.15

4.021

2.327

2.376

4.76

7.98

94.9

13.42

160.4 ± 0.3

21

19.79

1.891

1.161

1.183

8.69

14.6

98.1

19.41

227.6 ± 0.2

43

25.37

1.317

0.6052

0.7884

14.6

25.7

99.0

25.11

289.3 ± 0.3

82

30.45

1.319

0.4733

0.7658

14.9

37.1

99.2

30.20

342.7 ± 0.3

105

34.85

1.336

0.3984

0.7030

13.7

47.5

99.3

34.62

387.8 ± 0.3

124

38.23

1.309

0.3370

0.9838

12.1

56.8

99.2

37.92

420.7 ± 0.3

147

40.06

1.307

0.3242

1.555

7.66

62.6

98.8

39.57

437.1 ± 0.6

153

40.78

1.320

0.3322

1.792

8.76

69.3

98.6

40.23

443.5 ± 0.5

149

41.61

1.326

0.3733

1.975

12.2

78.6

98.5

41.00

451.0 ± 0.4

133

42.15

1.373

0.4581

2.170

9.73

86.0

98.4

41.49

455.7 ± 0.5

108

42.98

1.438

0.6688

2.696

9.04

92.9

98.1

42.16

462.2 ± 1.4

74

54.08

3.368

10.72

39.35

9.29

100

78.5

42.44

464.9 ± 1.1

4.6

Totals

33.27

374.1 ± 0.5

97

13.35

4.391

1.858

19.59

3.85

3.50

56.5

7.541

91.8 ± 0.7

27

12.45

4.509

2.398

2.235

4.79

7.86

94.5

11.77

141.3 ± 0.3

21

18.48

2.100

1.237

1.115

8.88

15.9

98.1

18.13

213.3 ± 0.3

40

23.48

1.344

0.6008

0.6548

10.1

25.1

99.1

23.27

269.5 ± 0.2

82

27.34

1.314

0.4840

0.5947

9.60

33.9

99.3

27.14

310.7 ± 0.2

102

30.87

1.332

0.4319

0.5039

10.4

43.3

99.4

30.69

347.6 ± 0.2

115

34.43

1.355

0.3926

0.4780

11.3

53.6

99.5

34.26

384.0 ± 0.4

126

37.81

1.317

0.3503

0.4857

12.0

64.5

99.6

37.64

417.9 ± 0.4

141

39.46

1.312

0.3440

0.6915

9.79

73.4

99.4

39.23

433.5 ± 0.5

144

40.44

1.313

0.3572

0.7727

13.1

85.3

99.4

40.18

442.9 ± 0.5

139

41.20

1.342

0.4364

0.8461

9.49

94.0

99.3

40.93

450.1 ± 0.4

113

44.96

3.416

13.27

7.043

6.62

100

95.3

42.87

468.9 ± 1.7

3.7

Totals

31.68

357.8 ± 0.4

100

13.42

5.739

2.358

22.25

2.697

3.20

50.8

6.822

83.3 ± 0.4

21

11.85

7.936

4.100

3.595

2.589

6.28

90.8

10.77

129.8 ± 0.3

12

16.55

5.687

3.271

2.477

4.314

11.4

95.4

15.80

187.4 ± 0.3

15

21.22

2.163

1.141

0.9406

6.313

18.9

98.6

20.92

244.2 ± 0.5

43

25.82

1.448

0.5971

0.2779

7.292

27.6

99.6

25.72

295.8 ± 0.7

83

30.23

1.451

0.4987

0.4286

7.750

36.8

99.5

30.08

341.5 ± 0.4

99

34.13

1.482

0.4595

1.591

5.897

43.8

98.6

33.63

377.9 ± 0.5

108

36.30

1.495

0.5000

0.8081

4.258

48.8

99.3

36.04

402.2 ± 0.6

99

37.85

1.446

0.3952

1.207

4.057

53.6

99.0

37.47

416.4 ± 0.6

125

38.63

1.414

0.4221

0.9918

4.442

58.9

99.2

38.31

424.7 ± 1.0

117

39.31

1.405

0.5135

1.551

3.455

63.0

98.8

38.83

429.8 ± 0.6

96

39.71

1.352

0.3203

1.236

5.935

70.1

99.0

39.32

434.7 ± 0.8

155

41.13

1.386

0.4674

1.416

10.03

82.0

98.9

40.68

448.0 ± 1.1

106

42.40

1.549

0.8258

4.082

6.006

89.1

97.1

41.17

452.8 ± 0.5

60

63.98

5.302

14.06

72.85

9.183

100

66.3

42.45

465.1 ± 1.8

3.5

Totals

32.70

368.4 ± 0.8

78

⁴⁰Ar/³⁹Ar

³⁸Ar/³⁹Ar

(10^-2)

³⁷Ar/³⁹Ar

(10^-2)

³⁶Ar/³⁹Ar

(10^-3)

³⁹Ar

(10^-14 mol)

Cumulative

³⁹Ar (%)

%⁴⁰Ar*

⁴⁰Ar*/³⁹Ar_K

Calculated Age (Ma) ± 1 s.d.

K/Ca

109.3

17.76

5.008

349.7

0.296

0.22

5.5

5.986

73.4 ± 5.9

10

69.10

11.51

5.464

212.5

0.427

0.53

9.1

6.301

77.1 ± 3.9

9.1

56.93

8.170

5.502

166.7

1.04

1.30

13.4

7.648

93.2 ± 2.3

9.0

24.23

4.276

8.734

57.35

1.03

2.06

30.0

7.262

88.6 ± 4.5

5.7

10.86

2.295

15.30

6.547

2.75

4.10

82.1

8.908

108.1 ± 0.4

3.2

11.22

2.444

55.17

3.321

6.57

8.96

91.4

10.26

124.0 ± 0.2

0.9

13.61

1.490

59.07

1.828

10.5

16.7

96.2

13.09

156.7 ± 0.2

0.8

15.35

1.280

28.87

1.164

14.4

27.4

97.7

15.00

178.5 ± 0.1

1.7

17.18

1.212

1.470

0.8743

14.1

37.8

98.4

16.90

199.9 ± 0.1

34

19.21

1.219

1.003

0.8274

14.9

48.8

98.6

18.95

222.6 ± 0.2

49

21.80

1.223

0.9255

0.9177

16.8

61.2

98.6

21.50

250.7 ± 0.2

53

25.13

1.232

0.7050

1.0532

14.2

71.7

98.7

24.80

286.2 ± 0.3

70

27.27

1.249

0.5812

0.9943

13.8

81.9

98.8

26.96

309.1 ± 0.2

85

28.61

1.256

0.5004

0.8706

12.2

91.0

99.0

28.33

323.5 ± 0.6

99

30.46

1.262

0.5202

0.8828

12.0

99.8

99.1

30.17

342.7 ± 0.4

95

137.0

12.00

2.678

343.9

0.231

100

25.8

35.38

395.8 ± 60.3

18

Totals

20.61

241.0 ± 0.4

49

13.64

4.248

1.462

15.81

7.05

5.27

65.6

8.941

108.5 ± 0.6

34

16.68

2.501

1.467

1.654

5.57

9.43

96.9

16.17

191.6 ± 0.5

34

22.14

1.416

0.8092

0.9900

9.01

16.2

98.6

21.82

254.0 ± 0.3

61

26.41

1.300

0.5045

0.7450

13.1

26.0

99.1

26.16

300.6 ± 0.4

98

30.17

1.281

0.4018

0.6274

13.1

35.8

99.3

29.96

340.4 ± 0.4

123

33.25

1.295

0.3671

0.6229

12.6

45.2

99.4

33.05

372.0 ± 0.3

135

36.13

1.303

0.3285

0.5589

14.8

56.2

99.5

35.94

401.3 ± 0.3

151

38.66

1.275

0.2939

0.5976

15.0

67.4

99.5

38.45

426.2 ± 0.4

168

40.05

1.313

0.2907

0.7537

11.6

76.1

99.4

39.80

439.4 ± 0.5

170

40.95

1.293

0.2952

0.8947

13.7

86.3

99.3

40.66

447.9 ± 0.3

168

41.53

1.289

0.3177

0.8604

14.1

96.8

99.3

41.25

453.6 ± 0.3

156

45.02

3.328

4.579

6.812

4.28

100

95.5

42.99

470.4 ± 1.3

11

Totals

32.81

369.4 ± 0.4

126

65.41

5.715

2.355

193.8

2.07

2.14

12.4

8.136

99.0 ± 6.5

21

14.13

1.810

2.255

10.51

2.50

4.71

77.9

11.00

132.6 ± 0.8

22

15.61

1.473

1.668

4.624

6.25

11.1

91.1

14.21

169.6 ± 0.3

30

19.89

1.243

0.9862

2.803

9.13

20.6

95.7

19.04

223.7 ± 0.3

50