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Table 4 Trace element composition of obsidians from Mediterranean and Near East areas

From: Mediterranean and Near East obsidian reference samples to establish artefacts provenance

 

Mediterranean area

Near East

 

Aegean Islands

Flegrean Islands

Civita di Bagnoregio

Eolie Islands

Sardinia Island

North Caucasus

As

7.71 (4.31-8.82)

21.9 (7.24-36.4)

24.9 (22.0-29.5)

18.1 (7.26-35.3)

12.3 (11.4-13.2)

12.6 (3.43-19.5)

Ba

542 (287-719)

298 (17.3-554)

613 (527-682)

206 (26.0-562)

271 (254-288)

331 (33.0-646)

Ce

46.2 (28.6-56.6)

170 (88.4-225)

115 (95.2-129)

161 (76.3-423)

42.1 (37.1-7.1)

105 (35.9-293)

Co

8.01 (7.31-8.53)

0.927 (0.151-1.51)

11.8 (11.5-12.0)

1.27 (0.201-7.84)

2.97 (2.91-3.02)

0.311 (0.062-0.590)

Cr

16.3 (0.53-47.0)

1.22 (0.713-2.13)

98.2 (94.8-100)

11.5 (0.763-61.4)

241 (223-265)

1.27 (0.464-3.60)

Cs

7.99 (5.33-9.54)

27.5 (13.6-44.1)

18.4 (18.3-18.6)

22.4 (2.99-52.5)

4.57 (4.53-4.60)

13.6 (5.19-23.0)

Eu

0.568 (0.271-0.813)

1.24 (0.060-2.09)

1.58 (1.52-1.64)

0.787 (0.082-4.16)

0.332 (0.312-.345)

0.685 (0.250-1.61)

Fe%

1.52 (0.65-1.99)

1.88 (0.98-2.44)

3.86 (3.82-3.98)

1.89 (0.967-6.25)

1.39 (1.37-1.4)

1.78 (0.61-4.94)

Hf

4.59 (2.30-7.47)

12.3 (9.01-20.5)

6.23 (6.06-6.32)

14.0 (6.81-57.4)

7.07 (6.95-7.26)

14.1 (3.56-41.7)

K%

3.34 (2.10-3.99)

6.99 (6.09-7.58)

1.98 (1.89-2.16)

5.16 (4.17-6.67)

4.71 (4.69-4.73)

4.32 (3.24-5.79)

La

12.0 (11.7-13.9)

27.4 (20.9-34.0)

19.9 (19.4-20.8)

30.2 (15.4-84.6)

7.80 (7.57-8.03)

10.4 (7.00-13.2)

Na%

2.11 (1.86-2.52)

2.48 (1.86-3.24)

0.723 (0.689-0.768)

2.66 (1.06-5.99)

2.43 (2.22-2.64)

2.32 (1.87-3.12)

Nd

231 (193-266)

618 (25.0-1162)

583 (524-624)

572 (52.0-2847)

361 (346-376)

444 (17.2-1730)

Ni

12.6 (4.70-23.0)

11.1 (4.60-19.3)

51.1 (47.4-55.9)

12.4 (.20-33.3)

116 (113-121)

14.2 (5.10-39.0)

Rb

126 (84.4-161)

324 (233-434)

217 (215-219)

308 (191-460)

248 (245-251)

218 (135-281)

Sb

0.752 (0.381-1.28)

0.842 (0.142-1.57)

0.703 (0.410-1.13)

0.707 (0.313-1.63)

1.44 (1.41-1.46)

0.579 (0.210-1.22)

Sc

3.92 (1.62-6.13)

2.15 (1.71-2.47)

14.3 (14.0-14.6)

2.65 (1.25-8.54)

4.77 (4.69-4.85)

2.87 (1.03-3.77)

Se

2.25 (1.89-2.88)

7.23 (5.40-11.0)

1.88 (0.1.71-2.00)

8.77 (2.85-44.5)

7.49 (7.07-7.92)

6.21 (3.19-11.0)

Sm

3.11 (2.59-4.11)

9.90 (7.12-14.0)

8.02 (7.52-8.43)

10.7 (5.95-37.5)

6.16 (6.04-6.27)

7.74 (1.92-22.1)

Sr

100 (6.60-186)

93.3 (4.30-294)

518 (454-580

26.9 (3.90-175)

9.15 (8.50-9.80)

16.4 (7.90-28.0)

Ta

0.998 (0.392-1.49)

4.09 (3.18-6.05)

1.06 (1.03-1.12)

4.88 (2.05-24.7)

3.86 (3.84-3.88)

3.45 (2.22-5.61)

Th

12.3 (4.65-16.5)

40.1 (23.3-58.9)

23.6 (23.2-23.9)

46.7 (20.5-71.0)

16.2 (16.0-16.4)

22.5 (16.8-32.7)

U

3.33 (1.45-4.70)

21.6 (6.76-62.9)

3.92 (3.85-3.99)

14.8 (4.55-30.1)

5.30 (5.19-5.41)

10.1 (8.77-13.5)

W

148 (10.0-300)

305 (59.0-592)

184 (172-192)

310 (174-580)

185 (175-194)

197 (136-279)

Yb

1.85 (1.13-2.61)

5.00 (3.43-7.01)

1.01 (2.50-2.96)

5.67 (2.37-16.7)

2.78 (2.75-2.89)

5.53 (1.93-15.3)

Zn

34.9 (20.2-49.1)

59.1 (15.2-114)

77.1 (72.3-80.6)

77.4 (32.8-402)

406 (384-429)

81.3 (35.7-217)

Zr

142 (79.5-228)

435 (285-696)

212 (211-214)

441 (202-1793)

193 (185-200)

439 (136-1214)

  1. Mean element levels along maximum and minimum values of obsidian collected in different well-defined deposits and analyzed by INAA (μg g−1, except Fe, K and K expressed as%).