Table 4.

Table T4. X-ray fluorescence results for major elements, Holes 1117A and 1117C. (Continued on next page.)

Core, section,
interval (cm)

Sample

SiO₂

Average

TiO₂

Average

Al₂O₃

Average

Fe₂O₃

Average

MnO

Average

MgO

Average

180-1117A-

9R-1, 85-86

1a

50.47

0.88

15.73

9.59

0.15

8.63

1b

50.71

50.59

0.88

0.88

15.68

15.71

9.49

9.54

0.15

0.15

8.70

8.67

11R-1, 32-35

2a

50.47

2.52

12.39

19.31

0.27

4.30

2b

50.55

50.51

2.53

2.53

12.44

12.41

19.34

19.33

0.27

0.27

4.35

4.33

12R-1, 11-13

3a

49.37

2.92

11.73

21.48

0.27

4.37

3b

49.20

49.29

2.97

2.95

11.57

11.65

21.72

21.60

0.28

0.27

4.36

4.37

14R-1, 4-7

4a

53.36

1.58

13.44

13.47

0.24

5.83

4b

52.86

53.11

1.56

1.57

13.41

13.43

13.60

13.53

0.24

0.24

5.81

5.82

180-1117C-

1R-1, 9-10

5a

69.86

0.88

14.59

5.99

0.08

2.58

5b

69.54

69.70

0.87

0.87

14.52

14.55

5.95

5.97

0.08

0.08

2.58

2.58

Comparative analysis*

6

50.70

0.85

15.40

14.59

0.12

5.63

Core, section, interval (cm)	Sample	SiO₂	Average	TiO₂	Average	Al₂O₃	Average	Fe₂O₃	Average	MnO	Average	MgO	Average
180-1117A-
9R-1, 85-86	1a	50.47		0.88		15.73		9.59		0.15		8.63
	1b	50.71	50.59	0.88	0.88	15.68	15.71	9.49	9.54	0.15	0.15	8.70	8.67
11R-1, 32-35	2a	50.47		2.52		12.39		19.31		0.27		4.30
	2b	50.55	50.51	2.53	2.53	12.44	12.41	19.34	19.33	0.27	0.27	4.35	4.33
12R-1, 11-13	3a	49.37		2.92		11.73		21.48		0.27		4.37
	3b	49.20	49.29	2.97	2.95	11.57	11.65	21.72	21.60	0.28	0.27	4.36	4.37
14R-1, 4-7	4a	53.36		1.58		13.44		13.47		0.24		5.83
	4b	52.86	53.11	1.56	1.57	13.41	13.43	13.60	13.53	0.24	0.24	5.81	5.82

180-1117C-
1R-1, 9-10	5a	69.86		0.88		14.59		5.99		0.08		2.58
	5b	69.54	69.70	0.87	0.87	14.52	14.55	5.95	5.97	0.08	0.08	2.58	2.58
Comparative analysis*	6		50.70		0.85		15.40		14.59		0.12		5.63

Notes: LOI = loss on ignition. Major element values are in weight percent; a and b = duplicate analyses of the same sample; * = Lippard et al., 1986, table 3.9, sample OM984.