Table 3 Chemical analysis of major oxides (Wt. %) and some trace elements and REEs (ppm) for Wadi Sikait monzogranite mineralized zone, SED, Egypt

Major oxides (Wt.%)

 SiO₂

73.5

72.7

73.2

74.2

72.95

73.13

74.3

73.43

74.5

74.2

75.1

74.6

74.6

72.9

 TiO₂

0.22

0.23

0.22

0.26

0.22

0.23

0.28

0.24

0.25

0.25

0.26

0.3

0.27

0.3

 Al₂O₃

12.36

12.55

12.38

11.4

12.4

12.43

11.4

12.14

12.36

12.59

11.8

12.7

12.36

12.8

 Fe₂O₃

3.25

3.3

3.19

3.76

3.2

3.25

3.13

3.30

2.07

2.09

2

2.3

2.12

2.7

 MnO

0.056

0.056

0.054

0.04

0.05

0.06

0.07

0.06

0.019

0.019

0.018

0.02

0.02

0.04

 MgO

0.2

0.2

0.2

0.23

0.19

0.2

0.18

0.20

0.23

0.23

0.3

0.25

0.25

0.6

 CaO

0.98

1.01

0.94

1.65

0.9

0.97

1.46

1.13

0.91

0.95

0.8

0.75

0.85

1.7

 Na₂O

3.39

3.4

3.35

2.94

3.37

3.38

3.5

3.33

4.14

4.26

4.2

4.2

4.2

4.2

 K₂O

4.54

4.59

4.48

3.63

4.53

4.54

3.64

4.28

4.49

4.52

5

4.8

4.7

4.1

 P₂O₅

0.05

0.05

0.05

0.07

0.05

0.05

0.09

0.06

0.04

0.04

0.04

0.04

0.04

0.1

 LOI

1.5

1.9

1.7

0.9

1.8

1.7

1.78

1.61

0.5

0.4

0.35

0.4

0.41

0.6

 Total

100.04

99.99

99.76

99.11

99.8

99.93

99.83

99.78

99.52

99.54

100.2

100.3

99.91

100.1

 S

0.04

0.04

0.04

0.04

0.04

0.04

0.04

0.04

0.04

0.04

0.04

0.04

0.04

0.04

Trace elements (ppm)

 Ba

147

152

144

155

149.5

150.13

150

149.66

278

280

290

310

289.5

329

 Rb

511.2

513.5

496.3

398

447.15

463.74

498

475.41

291.4

289.1

300

290

292.63

156

 Sr

35

35

34

36

40

36.25

35

35.89

91

91

100

95

94.25

81

 Y

88.5

91.8

84.8

115

99.9

97.88

145

103.27

37

39.3

40

35

37.83

71

 Zr

1153.4

1081

990.8

1574

1282.4

1232

1432

1249.37

66

73.9

80

95

78.73

119

 Nb

823.04

881.5

820.81

801

810.9

828.52

1330

899.4

65.1

65.75

66.5

65

65.59

63

 Th

353

350

352.8

416

351

373.6

240

348

18.6

19

110

105

63.15

21

 Pb

38.31

39.5

37.89

53

38.6

38.57

56

43.12

12.72

12.45

13

12

12.54

18.2

 Ga

38.14

38.18

37.57

38

37.8

37.88

39

38

29.53

29.51

35

30

31.01

32

 Zn

225.6

223.7

218.5

210

221

222.6

276

228.2

128.4

128.1

130

120

127.88

130

 Cu

30.7

32.3

29.8

39

31

30.9

82

39.4

94.9

93.8

101

99

97.18

16.3

 Ni

0.6

0.8

0.6

2.6

0.7

0.67

1.5

1.07

6.1

6.1

7

6.5

6.43

2.1

 V

5

5

5

7

6

5.75

10.5

6.32

7

7

8

7.5

7.38

–

 Cr

1

2

1

56

28.5

21.88

55

23.63

4

2

5

5

4

–

 Hf

65.22

62.44

58.15

99

78.6

74.54

76.9

73.55

2.69

2.87

3.5

2.9

2.99

5.3

 Cs

11.3

11.5

11.1

14

12.55

12.29

11.6

12.05

4.5

4.4

5.5

5.2

4.9

4.5

 Sc

1.8

1.8

1.8

2.5

2.15

2.06

1.5

1.94

2.3

2.2

3.1

2.8

2.6

–

 Ta

51.3

53

50.8

47

48.9

49.93

99.5

57.20

4.8

5.2

5.6

4.5

5.03

5

 Co

1.4

1.4

1.3

1.7

1.35

1.37

2.5

1.57

3.1

3.2

3.3

2.9

3.13

2.4

 Li

243.8

246

238.9

223

230.95

234.71

250.6

238.28

134.5

134.2

136

140

136.18

63.5

 Be

14

13

13

15

14

13.75

12.3

13.58

9

9

10

8

9

–

 Bi

0.92

1.04

0.96

0.89

0.925

0.95

0.87

0.94

0.48

0.51

0.6

0.5

0.52

–

 U

342

345

323

350

334

343

220

322.43

6.8

6.7

25

50

22.13

7.3

 W

24.4

26.2

24.2

24

24.1

24.63

23.4

24.42

48.1

43.8

50

45

46.73

3.4

 Sn

43.6

43.5

41.9

53

47.45

46.46

52

46.84

31.4

31

32

33

31.85

11

 Mo

0.87

0.93

0.84

3

0.885

0.88

0.5

1.13

4.49

3.58

5.2

4.5

4.44

–

 Ag(ppb)

*

*

*

*

*

*

*

*

3612

3573

3500

3600

3571

–

 As

0.2

0.2

0.4

0.2

0.4

0.4

0.32

0.34

0.2

0.2

0.2

0.2

0.2

0.5

 Cd

0.1

0.1

0.09

1

0.545

0.43

0.32

0.37

0.1

0.12

0.2

0.2

0.16

–

 Sb

0.04

0.04

0.04

0.08

0.06

0.06

0.05

0.05

0.09

0.07

0.08

0.07

0.08

–

 In

0.28

0.29

0.28

0.25

0.265

0.27

0.27

0.27

0.09

0.08

0.1

0.09

0.09

–

 Re

0.002

0.002

0.002

0.005

0.005

0.01

0.02

0.01

0.002

0.002

0.002

0.002

0.002

–

 Se

1.5

1.6

1.5

0.3

1.5

1.53

1.15

1.46

0.5

0.6

0.7

0.6

0.6

–

 Te

0.05

0.05

0.05

0.33

0.33

0.33

0.32

0.33

0.05

0.05

0.05

0.05

0.05

–

 Tl

1.66

1.71

1.66

1.97

1.815

1.79

1.65

1.75

1.24

1.2

1.5

1.3

1.31

–

Rare earth elements (ppm)

 La

26

25.7

26.2

32

29.1

28.25

30.5

28.25

44

46.3

50

45

46.33

39.1

 Ce

53.3

54.37

55.05

76

65.525

62.74

76.4

63.34

93.67

96.78

101

99

97.61

76.1

 Pr

8

8

8

10

9

8.75

5.6

8.19

11.6

12.1

13

12

12.18

10.7

 Nd

26.5

26.7

26.3

31

28.65

28.16

29.7

28.14

39.4

40.5

55

40

43.73

37.6

 Sm

7

7.1

6.9

8

7.45

7.36

6.8

7.23

8.2

8.5

9

8.5

8.55

9.8

 Eu

0.4

0.4

0.3

0.4

0.35

0.36

0.45

0.38

0.6

0.7

0.5

0.6

0.6

0.8

 Gd

6.9

7.1

6.8

8.4

7.6

7.48

8.7

7.57

6.2

6.4

7.5

8

7.03

10

 Tb

1.9

2

1.8

2.5

2.15

2.11

3.2

2.24

0.9

0.9

1.1

0.8

0.93

2.4

 Dy

16.8

17.7

16.4

23

19.7

19.2

18.5

18.76

5.7

5.8

6

5.5

5.75

11.4

 Ho

4.1

4.3

4

6.2

5.1

4.9

3.6

4.60

1

1

1

0.9

0.98

3.1

 Er

17.5

18.1

16.9

26

21.45

20.61

22.4

20.42

3.1

3.2

3.3

2.9

3.13

7.9

 Tm

4.1

4.2

4

6

5

4.8

4.9

4.71

0.5

0.5

0.5

0.45

0.49

1.9

 Yb

35.7

36.6

34.1

54

44.05

42.19

45.7

41.76

3.3

3.4

3.5

3.9

3.53

9.2

 Lu

5.3

5.4

5

8.8

6.9

6.53

5.5

6.20

0.5

0.5

0.6

0.8

0.6

1.6

 REEs

213.5

217.67

211.75

292.3

252.02

243.44

261.95

241.80

245.85

249.87

255.32

250

249.75

250.6

 LREEs

121.2

122.27

122.75

157.4

140.07

135.62

149.45

135.54

197.47

204.8

228.5

205

209

174

 HREEs

92.3

95.4

89

134.9

111.95

107.81

112.5

106.27

21.2

21.7

23.5

23.25

22.44

47.5

 La/Y

0.294

0.280

0.309

0.278

0.291

0.289

0.210

0.274

1.189

1.178

1.250

1.286

1.225

0.551