Results of X-Ray Fluorescence Analysis

2018 - DEMO

35-LK-DEMOSITE, Lake County, Oregon

Alex J. Nyers

August 2018

Northwest Research Obsidian Studies Laboratory

Table 1. Summary of results of trace element analysis of the project specimens.

GEOCHEMICAL SOURCE N= PERCENTAGE

Cougar Mountain 142 53.2

Cowhead Lake 107 40.1

Drews Creek/Butcher Flat 18 6.7

TOTAL 267 100.0

Figure 1 - Scatterplot of zirconium (Zr) plotted versus strontium (Sr) for analyzed obsidian artifacts.

Table A-1. Results of XRF Studies: 35-LK-DEMOSITE, Lake County, Oregon

Geochemical SourceSite Catalog No. Rb Sr Y Zr Nb Ti Mn

Trace Element Concentrations

Fe O Fe:Mn2 3

Northwest Research Obsidian Studies Laboratory

Fe:TiT

Ratios

Specimen No. Ba

±

100 41 59 136 12 NM NM NM NM Cougar Mountain1

4 3 3 5 3

NM

NM NM NM

1

49

136935-LK-DEMO

±

119 4 30 76 17 NM NM NM NM Cowhead Lake2

3 3 4 3 3

NM

NM NM NM

2

51

035-LK-DEMO

±

120 10 27 78 12 NM NM NM NM Cowhead Lake3

3 2 3 2 2

NM

NM NM NM

3

47

035-LK-DEMO

±

103 39 53 137 15 NM NM NM NM Cougar Mountain4

5 2 4 3 2

NM

NM NM NM

4

36

135235-LK-DEMO

±

117 4 31 74 15 NM NM NM NM Cowhead Lake5

5 3 2 5 5

NM

NM NM NM

5

51

035-LK-DEMO

±

119 4 30 75 18 NM NM NM NM Cowhead Lake6

2 5 5 2 4

NM

NM NM NM

6

54

035-LK-DEMO

±

99 3 29 69 16 NM NM NM NM Cowhead Lake7

3 4 4 2 5

NM

NM NM NM

7

37

035-LK-DEMO

±

112 3 32 73 15 NM NM NM NM Cowhead Lake8

3 3 4 3 3

NM

NM NM NM

8

43

035-LK-DEMO

±

118 9 25 77 14 NM NM NM NM Cowhead Lake9

4 4 4 2 2

NM

NM NM NM

9

54

035-LK-DEMO

±

103 2 29 66 17 NM NM NM NM Cowhead Lake10

5 5 3 5 4

NM

NM NM NM

10

36

035-LK-DEMO

±

110 3 30 73 15 NM NM NM NM Cowhead Lake11

2 5 3 4 5

NM

NM NM NM

11

31

035-LK-DEMO

±

113 8 25 75 13 NM NM NM NM Cowhead Lake12

5 2 4 3 2

NM

NM NM NM

12

38

035-LK-DEMO

±

95 37 49 132 11 NM NM NM NM Cougar Mountain13

3 4 3 4 2

NM

NM NM NM

13

28

122835-LK-DEMO

±

123 5 31 77 16 NM NM NM NM Cowhead Lake14

3 3 2 5 2

NM

NM NM NM

14

57

035-LK-DEMO

1A -

All trace element values reported in parts per million; ± = analytical uncertainty estimate (in ppm). Iron content reported as weight percent oxide.

NA = Not available; ND = Not detected; NM = Not measured; * = Small sample; FGV = Fine-grained volcanic specimen.

Table A-1. Results of XRF Studies: 35-LK-DEMOSITE, Lake County, Oregon

Geochemical SourceSite Catalog No. Rb Sr Y Zr Nb Ti Mn

Trace Element Concentrations

Fe O Fe:Mn2 3

Northwest Research Obsidian Studies Laboratory

Fe:TiT

Ratios

Specimen No. Ba

±

99 39 54 136 9 NM NM NM NM Cougar Mountain15

4 3 5 4 3

NM

NM NM NM

15

38

133335-LK-DEMO

±

120 4 33 76 16 NM NM NM NM Cowhead Lake16

5 3 2 4 4

NM

NM NM NM

16

54

035-LK-DEMO

±

100 37 58 139 13 NM NM NM NM Cougar Mountain17

4 4 4 2 3

NM

NM NM NM

17

32

139735-LK-DEMO

±

111 4 31 72 16 NM NM NM NM Cowhead Lake18

2 2 4 4 2

NM

NM NM NM

18

52

035-LK-DEMO

±

112 6 31 73 17 NM NM NM NM Cowhead Lake19

5 4 2 4 4

NM

NM NM NM

19

30

035-LK-DEMO

±

119 10 26 81 12 NM NM NM NM Cowhead Lake20

5 4 4 5 5

NM

NM NM NM

20

47

035-LK-DEMO

±

98 37 55 128 12 NM NM NM NM Cougar Mountain21

4 2 4 5 5

NM

NM NM NM

21

51

108435-LK-DEMO

±

110 5 31 71 15 NM NM NM NM Cowhead Lake22

4 4 5 5 4

NM

NM NM NM

22

45

035-LK-DEMO

±

96 38 53 131 12 NM NM NM NM Cougar Mountain23

2 3 4 2 5

NM

NM NM NM

23

59

120035-LK-DEMO

±

98 40 57 130 14 NM NM NM NM Cougar Mountain24

2 3 5 5 5

NM

NM NM NM

24

29

135935-LK-DEMO

±

97 37 56 132 10 NM NM NM NM Cougar Mountain25

5 2 2 2 5

NM

NM NM NM

25

41

121335-LK-DEMO

±

131 10 29 85 14 NM NM NM NM Cowhead Lake26

4 5 3 4 4

NM

NM NM NM

26

56

035-LK-DEMO

±

96 40 54 132 12 NM NM NM NM Cougar Mountain27

4 5 5 3 3

NM

NM NM NM

27

51

119035-LK-DEMO

±

118 4 32 77 17 NM NM NM NM Cowhead Lake28

3 3 4 5 4

NM

NM NM NM

28

36

035-LK-DEMO

2A -

All trace element values reported in parts per million; ± = analytical uncertainty estimate (in ppm). Iron content reported as weight percent oxide.

NA = Not available; ND = Not detected; NM = Not measured; * = Small sample; FGV = Fine-grained volcanic specimen.

Table A-1. Results of XRF Studies: 35-LK-DEMOSITE, Lake County, Oregon

Geochemical SourceSite Catalog No. Rb Sr Y Zr Nb Ti Mn

Trace Element Concentrations

Fe O Fe:Mn2 3

Northwest Research Obsidian Studies Laboratory

Fe:TiT

Ratios

Specimen No. Ba

±

91 36 54 128 11 NM NM NM NM Cougar Mountain29

5 4 3 3 3

NM

NM NM NM

29

55

122835-LK-DEMO

±

116 4 31 73 16 NM NM NM NM Cowhead Lake30

4 3 2 2 3

NM

NM NM NM

30

44

035-LK-DEMO

±

106 3 28 69 15 NM NM NM NM Cowhead Lake31

4 5 4 5 3

NM

NM NM NM

31

39

035-LK-DEMO

±

124 10 29 77 12 NM NM NM NM Cowhead Lake32

5 3 3 5 4

NM

NM NM NM

32

33

035-LK-DEMO

±

94 37 53 135 14 NM NM NM NM Cougar Mountain33

5 5 4 5 5

NM

NM NM NM

33

28

120335-LK-DEMO

±

106 41 60 141 16 NM NM NM NM Cougar Mountain34

2 3 4 5 2

NM

NM NM NM

34

57

129935-LK-DEMO

±

105 43 59 141 13 NM NM NM NM Cougar Mountain35

5 4 2 2 4

NM

NM NM NM

35

28

134135-LK-DEMO

±

90 34 54 127 11 NM NM NM NM Cougar Mountain36

2 3 4 5 4

NM

NM NM NM

36

43

117035-LK-DEMO

±

95 39 54 130 12 NM NM NM NM Cougar Mountain37

4 4 3 3 4

NM

NM NM NM

37

30

138935-LK-DEMO

±

93 37 54 125 12 NM NM NM NM Cougar Mountain38

4 3 3 5 5

NM

NM NM NM

38

50

125235-LK-DEMO

±

86 34 52 122 10 NM NM NM NM Cougar Mountain39

5 4 5 5 3

NM

NM NM NM

39

38

107235-LK-DEMO

±

89 34 57 128 10 NM NM NM NM Cougar Mountain40

4 5 5 4 3

NM

NM NM NM

40

59

118935-LK-DEMO

±

95 37 54 134 11 NM NM NM NM Cougar Mountain41

3 3 4 3 3

NM

NM NM NM

41

54

115535-LK-DEMO

±

108 5 30 70 17 NM NM NM NM Cowhead Lake42

2 4 4 3 2

NM

NM NM NM

42

37

035-LK-DEMO

3A -

All trace element values reported in parts per million; ± = analytical uncertainty estimate (in ppm). Iron content reported as weight percent oxide.

NA = Not available; ND = Not detected; NM = Not measured; * = Small sample; FGV = Fine-grained volcanic specimen.

Table A-1. Results of XRF Studies: 35-LK-DEMOSITE, Lake County, Oregon

Geochemical SourceSite Catalog No. Rb Sr Y Zr Nb Ti Mn

Trace Element Concentrations

Fe O Fe:Mn2 3

Northwest Research Obsidian Studies Laboratory

Fe:TiT

Ratios

Specimen No. Ba

±

98 39 53 132 10 NM NM NM NM Cougar Mountain43

4 5 4 4 3

NM

NM NM NM

43

55

77635-LK-DEMO

±

102 44 57 138 10 NM NM NM NM Cougar Mountain44

4 5 2 4 3

NM

NM NM NM

44

54

132735-LK-DEMO

±

116 4 31 74 16 NM NM NM NM Cowhead Lake45

2 5 2 5 2

NM

NM NM NM

45

48

035-LK-DEMO

±

113 3 32 75 18 NM NM NM NM Cowhead Lake46

4 2 5 4 3

NM

NM NM NM

46

33

035-LK-DEMO

±

94 37 54 125 10 NM NM NM NM Cougar Mountain47

5 5 3 2 2

NM

NM NM NM

47

45

105735-LK-DEMO

±

104 22 23 106 10 NM NM NM NM Drews Creek/Butcher Flat48

2 5 4 3 3

NM

NM NM NM

48

41

8535-LK-DEMO

±

88 33 52 121 12 NM NM NM NM Cougar Mountain49

3 3 4 5 3

NM

NM NM NM

49

50

117635-LK-DEMO

±

87 35 52 123 13 NM NM NM NM Cougar Mountain50

2 5 4 4 4

NM

NM NM NM

50

51

118935-LK-DEMO

±

109 4 31 68 16 NM NM NM NM Cowhead Lake51

5 2 5 3 3

NM

NM NM NM

51

32

035-LK-DEMO

±

94 38 51 130 7 NM NM NM NM Cougar Mountain52

5 2 5 2 5

NM

NM NM NM

52

42

116035-LK-DEMO

±

116 4 32 77 15 NM NM NM NM Cowhead Lake53

5 4 2 5 3

NM

NM NM NM

53

59

035-LK-DEMO

±

110 17 23 94 10 NM NM NM NM Drews Creek/Butcher Flat54

2 3 5 4 5

NM

NM NM NM

54

52

035-LK-DEMO

±

97 37 57 139 12 NM NM NM NM Cougar Mountain55

2 3 4 5 2

NM

NM NM NM

55

32

114835-LK-DEMO

±

100 43 61 135 14 NM NM NM NM Cougar Mountain56

3 3 4 2 4

NM

NM NM NM

56

37

128135-LK-DEMO

4A -

All trace element values reported in parts per million; ± = analytical uncertainty estimate (in ppm). Iron content reported as weight percent oxide.

NA = Not available; ND = Not detected; NM = Not measured; * = Small sample; FGV = Fine-grained volcanic specimen.

Table A-1. Results of XRF Studies: 35-LK-DEMOSITE, Lake County, Oregon

Geochemical SourceSite Catalog No. Rb Sr Y Zr Nb Ti Mn

Trace Element Concentrations

Fe O Fe:Mn2 3

Northwest Research Obsidian Studies Laboratory

Fe:TiT

Ratios

Specimen No. Ba

±

123 9 28 80 12 NM NM NM NM Cowhead Lake57

3 5 2 2 2

NM

NM NM NM

57

43

035-LK-DEMO

±

96 40 53 134 10 NM NM NM NM Cougar Mountain58

5 4 3 5 2

NM

NM NM NM

58

53

125935-LK-DEMO

±

127 8 29 79 12 NM NM NM NM Cowhead Lake59

2 5 5 2 5

NM

NM NM NM

59

48

035-LK-DEMO

±

103 41 55 133 13 NM NM NM NM Cougar Mountain60

3 2 2 4 5

NM

NM NM NM

60

44

130035-LK-DEMO

±

90 35 52 124 12 NM NM NM NM Cougar Mountain61

5 4 4 2 3

NM

NM NM NM

61

32

100535-LK-DEMO

±

101 39 52 137 12 NM NM NM NM Cougar Mountain62

5 5 3 2 4

NM

NM NM NM

62

45

127035-LK-DEMO

±

110 4 31 72 17 NM NM NM NM Cowhead Lake63

4 4 5 5 2

NM

NM NM NM

63

57

035-LK-DEMO

±

102 40 57 137 12 NM NM NM NM Cougar Mountain64

2 2 3 3 3

NM

NM NM NM

64

51

119235-LK-DEMO

±

115 5 30 74 15 NM NM NM NM Cowhead Lake65

2 3 4 2 4

NM

NM NM NM

65

32

035-LK-DEMO

±

107 43 59 138 10 NM NM NM NM Cougar Mountain66

5 5 5 3 4

NM

NM NM NM

66

49

128435-LK-DEMO

±

103 39 55 134 18 NM NM NM NM Cougar Mountain67

3 2 3 4 2

NM

NM NM NM

67

57

138435-LK-DEMO

±

122 9 28 77 14 NM NM NM NM Cowhead Lake68

4 5 5 5 4

NM

NM NM NM

68

37

035-LK-DEMO

±

93 38 54 133 13 NM NM NM NM Cougar Mountain69

4 3 5 2 3

NM

NM NM NM

69

35

120235-LK-DEMO

±

95 40 59 137 14 NM NM NM NM Cougar Mountain70

4 5 3 4 5

NM

NM NM NM

70

29

133235-LK-DEMO

5A -

All trace element values reported in parts per million; ± = analytical uncertainty estimate (in ppm). Iron content reported as weight percent oxide.

NA = Not available; ND = Not detected; NM = Not measured; * = Small sample; FGV = Fine-grained volcanic specimen.

Table A-1. Results of XRF Studies: 35-LK-DEMOSITE, Lake County, Oregon

Geochemical SourceSite Catalog No. Rb Sr Y Zr Nb Ti Mn

Trace Element Concentrations

Fe O Fe:Mn2 3

Northwest Research Obsidian Studies Laboratory

Fe:TiT

Ratios

Specimen No. Ba

±

98 40 58 135 9 NM NM NM NM Cougar Mountain71

4 3 3 4 2

NM

NM NM NM

71

36

128235-LK-DEMO

±

93 41 54 129 19 NM NM NM NM Cougar Mountain72

3 4 5 3 4

NM

NM NM NM

72

36

124535-LK-DEMO

±

93 35 55 132 11 NM NM NM NM Cougar Mountain73

2 3 2 3 2

NM

NM NM NM

73

53

137135-LK-DEMO

±

119 3 31 78 16 NM NM NM NM Cowhead Lake74

5 2 4 3 3

NM

NM NM NM

74

47

035-LK-DEMO

±

91 38 53 135 15 NM NM NM NM Cougar Mountain75

4 3 2 5 4

NM

NM NM NM

75

48

108235-LK-DEMO

±

102 27 23 85 12 NM NM NM NM Drews Creek/Butcher Flat76

4 4 4 4 4

NM

NM NM NM

76

39

5535-LK-DEMO

±

98 38 56 131 11 NM NM NM NM Cougar Mountain77

5 5 5 3 2

NM

NM NM NM

77

56

126135-LK-DEMO

±

92 34 53 127 10 NM NM NM NM Cougar Mountain78

2 5 5 4 5

NM

NM NM NM

78

47

116335-LK-DEMO

±

93 36 57 136 12 NM NM NM NM Cougar Mountain79

3 3 2 2 2

NM

NM NM NM

79

59

111735-LK-DEMO

±

123 6 32 81 20 NM NM NM NM Cowhead Lake80

5 4 2 4 5

NM

NM NM NM

80

52

4635-LK-DEMO

±

89 35 48 119 9 NM NM NM NM Cougar Mountain81

5 4 3 2 4

NM

NM NM NM

81

53

123635-LK-DEMO

±

121 4 32 75 18 NM NM NM NM Cowhead Lake82

3 4 4 3 5

NM

NM NM NM

82

46

035-LK-DEMO

±

99 38 56 133 7 NM NM NM NM Cougar Mountain83

3 5 4 2 4

NM

NM NM NM

83

46

128635-LK-DEMO

±

116 20 24 87 10 NM NM NM NM Drews Creek/Butcher Flat84

4 5 4 4 4

NM

NM NM NM

84

40

035-LK-DEMO

6A -

All trace element values reported in parts per million; ± = analytical uncertainty estimate (in ppm). Iron content reported as weight percent oxide.

NA = Not available; ND = Not detected; NM = Not measured; * = Small sample; FGV = Fine-grained volcanic specimen.

Table A-1. Results of XRF Studies: 35-LK-DEMOSITE, Lake County, Oregon

Geochemical SourceSite Catalog No. Rb Sr Y Zr Nb Ti Mn

Trace Element Concentrations

Fe O Fe:Mn2 3

Northwest Research Obsidian Studies Laboratory

Fe:TiT

Ratios

Specimen No. Ba

±

107 5 29 69 17 NM NM NM NM Cowhead Lake85

4 4 4 4 3

NM

NM NM NM

85

52

035-LK-DEMO

±

96 35 53 121 10 NM NM NM NM Cougar Mountain86

3 3 3 4 4

NM

NM NM NM

86

38

105335-LK-DEMO

±

92 38 51 129 15 NM NM NM NM Cougar Mountain87

5 3 2 4 5

NM

NM NM NM

87

38

123735-LK-DEMO

±

104 43 58 136 10 NM NM NM NM Cougar Mountain88

2 2 2 2 3

NM

NM NM NM

88

41

134535-LK-DEMO

±

100 37 56 133 8 NM NM NM NM Cougar Mountain89

4 5 3 5 3

NM

NM NM NM

89

59

116135-LK-DEMO

±

107 4 31 69 16 NM NM NM NM Cowhead Lake90

3 2 3 2 4

NM

NM NM NM

90

42

035-LK-DEMO

±

107 10 29 78 15 NM NM NM NM Cowhead Lake91

2 3 5 4 4

NM

NM NM NM

91

30

6835-LK-DEMO

±

122 9 27 80 13 NM NM NM NM Cowhead Lake92

5 2 2 2 2

NM

NM NM NM

92

59

035-LK-DEMO

±

105 4 30 74 18 NM NM NM NM Cowhead Lake93

4 4 4 4 5

NM

NM NM NM

93

31

035-LK-DEMO

±

109 40 57 145 10 NM NM NM NM Cougar Mountain94

4 5 3 3 4

NM

NM NM NM

94

37

127735-LK-DEMO

±

91 37 53 132 15 NM NM NM NM Cougar Mountain95

4 2 2 2 4

NM

NM NM NM

95

35

134235-LK-DEMO

±

113 4 30 72 17 NM NM NM NM Cowhead Lake96

4 2 2 5 3

NM

NM NM NM

96

50

035-LK-DEMO

±

93 38 58 132 12 NM NM NM NM Cougar Mountain97

2 2 4 5 5

NM

NM NM NM

97

60

115035-LK-DEMO

±

116 11 25 77 12 NM NM NM NM Cowhead Lake98

5 5 2 5 5

NM

NM NM NM

98

35

035-LK-DEMO

7A -

All trace element values reported in parts per million; ± = analytical uncertainty estimate (in ppm). Iron content reported as weight percent oxide.

NA = Not available; ND = Not detected; NM = Not measured; * = Small sample; FGV = Fine-grained volcanic specimen.

Table A-1. Results of XRF Studies: 35-LK-DEMOSITE, Lake County, Oregon

Geochemical SourceSite Catalog No. Rb Sr Y Zr Nb Ti Mn

Trace Element Concentrations

Fe O Fe:Mn2 3

Northwest Research Obsidian Studies Laboratory

Fe:TiT

Ratios

Specimen No. Ba

±

129 9 28 81 13 NM NM NM NM Cowhead Lake99

3 3 2 5 5

NM

NM NM NM

99

46

035-LK-DEMO

±

121 3 33 75 18 NM NM NM NM Cowhead Lake100

5 5 5 4 4

NM

NM NM NM

100

53

035-LK-DEMO

±

121 10 27 77 12 NM NM NM NM Cowhead Lake101

3 2 5 5 4

NM

NM NM NM

101

32

035-LK-DEMO

±

93 36 55 128 11 NM NM NM NM Cougar Mountain102

5 2 4 4 3

NM

NM NM NM

102

40

120335-LK-DEMO

±

93 39 53 136 9 NM NM NM NM Cougar Mountain103

2 3 3 5 4

NM

NM NM NM

103

60

112435-LK-DEMO

±

96 36 54 132 9 NM NM NM NM Cougar Mountain104

4 3 2 3 5

NM

NM NM NM

104

59

118835-LK-DEMO

±

93 37 54 133 12 NM NM NM NM Cougar Mountain105

4 3 3 5 5

NM

NM NM NM

105

30

133635-LK-DEMO

±

99 37 54 130 13 NM NM NM NM Cougar Mountain106

4 4 4 2 2

NM

NM NM NM

106

29

125035-LK-DEMO

±

96 39 57 130 13 NM NM NM NM Cougar Mountain107

3 4 2 4 5

NM

NM NM NM

107

45

127435-LK-DEMO

±

115 8 32 75 19 NM NM NM NM Cowhead Lake108

2 4 3 2 3

NM

NM NM NM

108

40

035-LK-DEMO

±

100 40 58 131 11 NM NM NM NM Cougar Mountain109

5 3 4 4 4

NM

NM NM NM

109

39

127735-LK-DEMO

±

107 8 24 70 14 NM NM NM NM Cowhead Lake110

5 3 3 3 4

NM

NM NM NM

110

39

035-LK-DEMO

±

99 40 56 138 14 NM NM NM NM Cougar Mountain111

4 3 5 2 4

NM

NM NM NM

111

54

132235-LK-DEMO

±

101 40 54 136 16 NM NM NM NM Cougar Mountain112

2 3 2 5 2

NM

NM NM NM

112

54

131535-LK-DEMO

8A -

All trace element values reported in parts per million; ± = analytical uncertainty estimate (in ppm). Iron content reported as weight percent oxide.

NA = Not available; ND = Not detected; NM = Not measured; * = Small sample; FGV = Fine-grained volcanic specimen.

Table A-1. Results of XRF Studies: 35-LK-DEMOSITE, Lake County, Oregon

Geochemical SourceSite Catalog No. Rb Sr Y Zr Nb Ti Mn

Trace Element Concentrations

Fe O Fe:Mn2 3

Northwest Research Obsidian Studies Laboratory

Fe:TiT

Ratios

Specimen No. Ba

±

93 38 53 134 14 NM NM NM NM Cougar Mountain113

3 5 2 3 5

NM

NM NM NM

113

52

119635-LK-DEMO

±

106 23 22 88 11 NM NM NM NM Drews Creek/Butcher Flat114

4 4 5 5 3

NM

NM NM NM

114

52

035-LK-DEMO

±

115 7 30 76 16 NM NM NM NM Cowhead Lake115

5 4 2 4 3

NM

NM NM NM

115

55

035-LK-DEMO

±

102 41 57 142 9 NM NM NM NM Cougar Mountain116

3 2 5 5 4

NM

NM NM NM

116

32

134635-LK-DEMO

±

118 10 28 78 12 NM NM NM NM Cowhead Lake117

5 4 2 2 4

NM

NM NM NM

117

29

035-LK-DEMO

±

103 39 53 140 15 NM NM NM NM Cougar Mountain118

5 5 3 4 5

NM

NM NM NM

118

40

129735-LK-DEMO

±

104 40 54 133 12 NM NM NM NM Cougar Mountain119

3 5 5 5 2

NM

NM NM NM

119

28

118535-LK-DEMO

±

105 40 58 139 14 NM NM NM NM Cougar Mountain120

5 3 2 3 4

NM

NM NM NM

120

57

131135-LK-DEMO

±

95 36 53 132 14 NM NM NM NM Cougar Mountain121

5 2 4 5 5

NM

NM NM NM

121

44

79835-LK-DEMO

±

130 9 27 79 12 NM NM NM NM Cowhead Lake122

2 3 4 2 2

NM

NM NM NM

122

56

035-LK-DEMO

±

96 35 50 134 9 NM NM NM NM Cougar Mountain123

3 4 2 3 4

NM

NM NM NM

123

28

106935-LK-DEMO

±

123 9 27 75 13 NM NM NM NM Cowhead Lake124

4 3 3 4 5

NM

NM NM NM

124

46

035-LK-DEMO

±

98 39 58 136 11 NM NM NM NM Cougar Mountain125

2 4 5 5 3

NM

NM NM NM

125

54

129735-LK-DEMO

±

117 20 19 81 11 NM NM NM NM Drews Creek/Butcher Flat126

4 4 4 5 2

NM

NM NM NM

126

49

5535-LK-DEMO

9A -

All trace element values reported in parts per million; ± = analytical uncertainty estimate (in ppm). Iron content reported as weight percent oxide.

NA = Not available; ND = Not detected; NM = Not measured; * = Small sample; FGV = Fine-grained volcanic specimen.

Table A-1. Results of XRF Studies: 35-LK-DEMOSITE, Lake County, Oregon

Geochemical SourceSite Catalog No. Rb Sr Y Zr Nb Ti Mn

Trace Element Concentrations

Fe O Fe:Mn2 3

Northwest Research Obsidian Studies Laboratory

Fe:TiT

Ratios

Specimen No. Ba

±

97 37 57 138 15 NM NM NM NM Cougar Mountain127

3 5 3 5 5

NM

NM NM NM

127

39

115835-LK-DEMO

±

118 9 27 74 11 NM NM NM NM Cowhead Lake128

3 2 4 5 5

NM

NM NM NM

128

43

035-LK-DEMO

±

109 24 22 87 10 NM NM NM NM Drews Creek/Butcher Flat129

4 2 3 2 5

NM

NM NM NM

129

52

6535-LK-DEMO

±

101 22 24 86 12 NM NM NM NM Drews Creek/Butcher Flat130

4 5 3 4 2

NM

NM NM NM

130

31

5235-LK-DEMO

±

93 36 53 126 13 NM NM NM NM Cougar Mountain131

3 2 3 3 3

NM

NM NM NM

131

48

122535-LK-DEMO

±

113 4 31 72 16 NM NM NM NM Cowhead Lake132

3 4 5 4 2

NM

NM NM NM

132

51

035-LK-DEMO

±

102 4 27 67 16 NM NM NM NM Cowhead Lake133

4 3 4 3 5

NM

NM NM NM

133

31

035-LK-DEMO

±

117 5 32 75 18 NM NM NM NM Cowhead Lake134

2 5 3 2 5

NM

NM NM NM

134

54

035-LK-DEMO

±

90 35 53 126 12 NM NM NM NM Cougar Mountain135

5 2 3 4 4

NM

NM NM NM

135

59

115435-LK-DEMO

±

106 41 60 142 13 NM NM NM NM Cougar Mountain136

5 3 3 5 2

NM

NM NM NM

136

31

124935-LK-DEMO

±

92 35 54 131 10 NM NM NM NM Cougar Mountain137

2 3 5 3 3

NM

NM NM NM

137

46

128935-LK-DEMO

±

92 34 54 130 11 NM NM NM NM Cougar Mountain138

5 5 5 2 5

NM

NM NM NM

138

59

123835-LK-DEMO

±

117 9 26 79 13 NM NM NM NM Cowhead Lake139

3 2 3 2 3

NM

NM NM NM

139

59

035-LK-DEMO

±

113 3 29 76 16 NM NM NM NM Cowhead Lake140

5 3 3 4 4

NM

NM NM NM

140

47

035-LK-DEMO

10A -

All trace element values reported in parts per million; ± = analytical uncertainty estimate (in ppm). Iron content reported as weight percent oxide.

NA = Not available; ND = Not detected; NM = Not measured; * = Small sample; FGV = Fine-grained volcanic specimen.

Table A-1. Results of XRF Studies: 35-LK-DEMOSITE, Lake County, Oregon

Geochemical SourceSite Catalog No. Rb Sr Y Zr Nb Ti Mn

Trace Element Concentrations

Fe O Fe:Mn2 3

Northwest Research Obsidian Studies Laboratory

Fe:TiT

Ratios

Specimen No. Ba

±

95 38 55 135 12 NM NM NM NM Cougar Mountain141

5 4 4 4 5

NM

NM NM NM

141

41

123535-LK-DEMO

±

105 40 56 131 12 NM NM NM NM Cougar Mountain142

2 3 2 2 5

NM

NM NM NM

142

54

124035-LK-DEMO

±

96 39 56 125 12 NM NM NM NM Cougar Mountain143

3 3 4 4 2

NM

NM NM NM

143

30

112735-LK-DEMO

±

120 9 26 78 11 NM NM NM NM Cowhead Lake144

2 2 2 3 5

NM

NM NM NM

144

42

035-LK-DEMO

±

118 4 30 76 17 NM NM NM NM Cowhead Lake145

5 3 4 5 3

NM

NM NM NM

145

55

035-LK-DEMO

±

100 41 57 142 11 NM NM NM NM Cougar Mountain146

4 4 2 4 5

NM

NM NM NM

146

37

126035-LK-DEMO

±

131 10 28 83 11 NM NM NM NM Cowhead Lake147

4 4 5 3 2

NM

NM NM NM

147

54

035-LK-DEMO

±

105 4 30 69 15 NM NM NM NM Cowhead Lake148

5 5 3 2 4

NM

NM NM NM

148

56

035-LK-DEMO

±

101 40 54 133 12 NM NM NM NM Cougar Mountain149

4 2 3 3 5

NM

NM NM NM

149

50

133335-LK-DEMO

±

101 38 55 135 12 NM NM NM NM Cougar Mountain150

2 5 2 2 3

NM

NM NM NM

150

28

133635-LK-DEMO

±

116 9 26 76 12 NM NM NM NM Cowhead Lake151

5 3 3 5 4

NM

NM NM NM

151

33

035-LK-DEMO

±

101 39 57 138 12 NM NM NM NM Cougar Mountain152

3 3 3 2 2

NM

NM NM NM

152

48

138735-LK-DEMO

±

112 23 24 102 12 NM NM NM NM Drews Creek/Butcher Flat153

4 2 4 5 5

NM

NM NM NM

153

44

9835-LK-DEMO

±

96 39 53 133 12 NM NM NM NM Cougar Mountain154

4 3 2 2 5

NM

NM NM NM

154

43

129435-LK-DEMO

11A -

All trace element values reported in parts per million; ± = analytical uncertainty estimate (in ppm). Iron content reported as weight percent oxide.

NA = Not available; ND = Not detected; NM = Not measured; * = Small sample; FGV = Fine-grained volcanic specimen.

Table A-1. Results of XRF Studies: 35-LK-DEMOSITE, Lake County, Oregon

Geochemical SourceSite Catalog No. Rb Sr Y Zr Nb Ti Mn

Trace Element Concentrations

Fe O Fe:Mn2 3

Northwest Research Obsidian Studies Laboratory

Fe:TiT

Ratios

Specimen No. Ba

±

102 41 58 133 12 NM NM NM NM Cougar Mountain155

5 5 2 5 2

NM

NM NM NM

155

36

126535-LK-DEMO

±

101 43 60 140 13 NM NM NM NM Cougar Mountain156

5 4 3 5 5

NM

NM NM NM

156

60

136335-LK-DEMO

±

110 11 29 81 15 NM NM NM NM Cowhead Lake157

4 3 3 5 2

NM

NM NM NM

157

55

9535-LK-DEMO

±

115 4 30 74 15 NM NM NM NM Cowhead Lake158

3 3 5 3 4

NM

NM NM NM

158

53

035-LK-DEMO

±

92 34 54 126 12 NM NM NM NM Cougar Mountain159

4 4 3 4 5

NM

NM NM NM

159

38

128935-LK-DEMO

±

99 38 58 139 16 NM NM NM NM Cougar Mountain160

2 3 4 2 5

NM

NM NM NM

160

28

119035-LK-DEMO

±

123 9 26 83 11 NM NM NM NM Cowhead Lake161

2 5 5 5 5

NM

NM NM NM

161

42

035-LK-DEMO

±

126 11 27 81 13 NM NM NM NM Cowhead Lake162

3 2 2 2 5

NM

NM NM NM

162

44

035-LK-DEMO

±

121 9 27 77 13 NM NM NM NM Cowhead Lake163

5 2 2 3 5

NM

NM NM NM

163

46

035-LK-DEMO

±

100 41 58 135 12 NM NM NM NM Cougar Mountain164

5 5 4 4 3

NM

NM NM NM

164

43

134135-LK-DEMO

±

96 38 58 137 12 NM NM NM NM Cougar Mountain165

4 3 4 3 3

NM

NM NM NM

165

28

126135-LK-DEMO

±

101 38 55 136 10 NM NM NM NM Cougar Mountain166

2 4 2 5 4

NM

NM NM NM

166

38

122835-LK-DEMO

±

118 4 31 73 16 NM NM NM NM Cowhead Lake167

5 2 3 5 4

NM

NM NM NM

167

60

035-LK-DEMO

±

93 40 55 134 11 NM NM NM NM Cougar Mountain168

5 3 3 4 5

NM

NM NM NM

168

55

119335-LK-DEMO

12A -

All trace element values reported in parts per million; ± = analytical uncertainty estimate (in ppm). Iron content reported as weight percent oxide.

NA = Not available; ND = Not detected; NM = Not measured; * = Small sample; FGV = Fine-grained volcanic specimen.

Table A-1. Results of XRF Studies: 35-LK-DEMOSITE, Lake County, Oregon

Geochemical SourceSite Catalog No. Rb Sr Y Zr Nb Ti Mn

Trace Element Concentrations

Fe O Fe:Mn2 3

Northwest Research Obsidian Studies Laboratory

Fe:TiT

Ratios

Specimen No. Ba

±

101 44 58 134 12 NM NM NM NM Cougar Mountain169

4 3 3 4 2

NM

NM NM NM

169

56

116135-LK-DEMO

±

106 41 55 136 12 NM NM NM NM Cougar Mountain170

2 2 2 2 5

NM

NM NM NM

170

57

128335-LK-DEMO

±

96 39 56 134 14 NM NM NM NM Cougar Mountain171

2 4 4 4 2

NM

NM NM NM

171

55

106935-LK-DEMO

±

121 6 30 86 15 NM NM NM NM Cowhead Lake172

2 2 3 5 2

NM

NM NM NM

172

28

2235-LK-DEMO

±

110 3 31 72 13 NM NM NM NM Cowhead Lake173

3 5 3 2 5

NM

NM NM NM

173

35

035-LK-DEMO

±

122 10 27 78 12 NM NM NM NM Cowhead Lake174

3 3 5 3 5

NM

NM NM NM

174

60

035-LK-DEMO

±

126 9 28 78 14 NM NM NM NM Cowhead Lake175

2 4 2 2 3

NM

NM NM NM

175

32

035-LK-DEMO

±

90 35 53 123 12 NM NM NM NM Cougar Mountain176

4 4 2 4 5

NM

NM NM NM

176

33

106235-LK-DEMO

±

93 39 56 135 14 NM NM NM NM Cougar Mountain177

4 5 4 5 3

NM

NM NM NM

177

59

132335-LK-DEMO

±

102 40 58 136 14 NM NM NM NM Cougar Mountain178

2 4 5 3 3

NM

NM NM NM

178

46

127935-LK-DEMO

±

90 37 53 124 11 NM NM NM NM Cougar Mountain179

5 2 4 4 5

NM

NM NM NM

179

37

112435-LK-DEMO

±

103 41 60 138 10 NM NM NM NM Cougar Mountain180

2 5 5 5 2

NM

NM NM NM

180

30

111135-LK-DEMO

±

101 23 20 83 12 NM NM NM NM Drews Creek/Butcher Flat181

4 4 4 3 2

NM

NM NM NM

181

51

6535-LK-DEMO

±

130 10 28 85 14 NM NM NM NM Cowhead Lake182

3 5 3 3 5

NM

NM NM NM

182

28

035-LK-DEMO

13A -

All trace element values reported in parts per million; ± = analytical uncertainty estimate (in ppm). Iron content reported as weight percent oxide.

NA = Not available; ND = Not detected; NM = Not measured; * = Small sample; FGV = Fine-grained volcanic specimen.

Table A-1. Results of XRF Studies: 35-LK-DEMOSITE, Lake County, Oregon

Geochemical SourceSite Catalog No. Rb Sr Y Zr Nb Ti Mn

Trace Element Concentrations

Fe O Fe:Mn2 3

Northwest Research Obsidian Studies Laboratory

Fe:TiT

Ratios

Specimen No. Ba

±

116 25 25 100 13 NM NM NM NM Drews Creek/Butcher Flat183

5 4 3 4 3

NM

NM NM NM

183

31

6735-LK-DEMO

±

108 9 29 75 17 NM NM NM NM Cowhead Lake184

5 5 3 3 5

NM

NM NM NM

184

40

5935-LK-DEMO

±

122 11 27 78 15 NM NM NM NM Cowhead Lake185

3 2 5 3 3

NM

NM NM NM

185

33

035-LK-DEMO

±

105 41 56 141 10 NM NM NM NM Cougar Mountain186

2 5 4 4 5

NM

NM NM NM

186

36

127835-LK-DEMO

±

103 39 62 139 10 NM NM NM NM Cougar Mountain187

5 5 5 4 3

NM

NM NM NM

187

43

118035-LK-DEMO

±

97 39 60 137 11 NM NM NM NM Cougar Mountain188

4 3 5 3 3

NM

NM NM NM

188

42

126635-LK-DEMO

±

104 43 60 143 9 NM NM NM NM Cougar Mountain189

3 4 4 4 5

NM

NM NM NM

189

56

137035-LK-DEMO

±

86 34 49 121 12 NM NM NM NM Cougar Mountain190

4 5 4 2 3

NM

NM NM NM

190

58

119035-LK-DEMO

±

114 5 31 77 15 NM NM NM NM Cowhead Lake191

5 2 4 2 2

NM

NM NM NM

191

55

035-LK-DEMO

±

97 34 54 127 11 NM NM NM NM Cougar Mountain192

4 3 3 5 3

NM

NM NM NM

192

46

128535-LK-DEMO

±

121 4 33 77 16 NM NM NM NM Cowhead Lake193

5 2 3 4 3

NM

NM NM NM

193

51

035-LK-DEMO

±

89 34 55 122 10 NM NM NM NM Cougar Mountain194

4 5 2 3 5

NM

NM NM NM

194

41

126935-LK-DEMO

±

99 39 57 136 13 NM NM NM NM Cougar Mountain195

4 5 4 2 5

NM

NM NM NM

195

46

117935-LK-DEMO

±

112 19 20 80 11 NM NM NM NM Drews Creek/Butcher Flat196

5 2 5 4 4

NM

NM NM NM

196

54

5835-LK-DEMO

14A -

All trace element values reported in parts per million; ± = analytical uncertainty estimate (in ppm). Iron content reported as weight percent oxide.

NA = Not available; ND = Not detected; NM = Not measured; * = Small sample; FGV = Fine-grained volcanic specimen.

Table A-1. Results of XRF Studies: 35-LK-DEMOSITE, Lake County, Oregon

Geochemical SourceSite Catalog No. Rb Sr Y Zr Nb Ti Mn

Trace Element Concentrations

Fe O Fe:Mn2 3

Northwest Research Obsidian Studies Laboratory

Fe:TiT

Ratios

Specimen No. Ba

±

102 43 59 138 10 NM NM NM NM Cougar Mountain197

5 5 5 5 3

NM

NM NM NM

197

35

122435-LK-DEMO

±

91 32 51 119 11 NM NM NM NM Cougar Mountain198

3 5 4 3 3

NM

NM NM NM

198

43

115235-LK-DEMO

±

97 40 59 139 14 NM NM NM NM Cougar Mountain199

4 2 2 3 3

NM

NM NM NM

199

28

132835-LK-DEMO

±

104 43 58 136 10 NM NM NM NM Cougar Mountain200

2 2 2 5 5

NM

NM NM NM

200

29

134535-LK-DEMO

±

117 4 30 75 16 NM NM NM NM Cowhead Lake201

2 2 3 5 4

NM

NM NM NM

201

55

035-LK-DEMO

±

93 38 52 132 11 NM NM NM NM Cougar Mountain202

2 4 3 4 5

NM

NM NM NM

202

54

131435-LK-DEMO

±

93 35 51 129 13 NM NM NM NM Cougar Mountain203

4 3 3 2 4

NM

NM NM NM

203

41

127135-LK-DEMO

±

101 41 54 135 12 NM NM NM NM Cougar Mountain204

5 4 2 5 3

NM

NM NM NM

204

37

130535-LK-DEMO

±

99 40 55 139 10 NM NM NM NM Cougar Mountain205

2 4 5 4 5

NM

NM NM NM

205

57

124335-LK-DEMO

±

110 3 31 73 17 NM NM NM NM Cowhead Lake206

3 2 4 3 5

NM

NM NM NM

206

43

035-LK-DEMO

±

116 5 32 73 17 NM NM NM NM Cowhead Lake207

3 4 5 2 5

NM

NM NM NM

207

33

035-LK-DEMO

±

108 3 31 72 17 NM NM NM NM Cowhead Lake208

3 3 4 3 5

NM

NM NM NM

208

42

035-LK-DEMO

±

106 4 30 69 16 NM NM NM NM Cowhead Lake209

4 3 5 3 3

NM

NM NM NM

209

39

035-LK-DEMO

±

112 3 32 71 18 NM NM NM NM Cowhead Lake210

5 4 4 4 4

NM

NM NM NM

210

35

035-LK-DEMO

15A -

All trace element values reported in parts per million; ± = analytical uncertainty estimate (in ppm). Iron content reported as weight percent oxide.

NA = Not available; ND = Not detected; NM = Not measured; * = Small sample; FGV = Fine-grained volcanic specimen.

Table A-1. Results of XRF Studies: 35-LK-DEMOSITE, Lake County, Oregon

Geochemical SourceSite Catalog No. Rb Sr Y Zr Nb Ti Mn

Trace Element Concentrations

Fe O Fe:Mn2 3

Northwest Research Obsidian Studies Laboratory

Fe:TiT

Ratios

Specimen No. Ba

±

94 38 55 136 12 NM NM NM NM Cougar Mountain211

3 5 5 3 2

NM

NM NM NM

211

34

121135-LK-DEMO

±

117 25 24 100 9 NM NM NM NM Drews Creek/Butcher Flat212

5 5 5 5 4

NM

NM NM NM

212

36

7535-LK-DEMO

±

111 7 29 80 17 NM NM NM NM Cowhead Lake213

4 5 3 2 3

NM

NM NM NM

213

41

5135-LK-DEMO

±

123 3 36 79 20 NM NM NM NM Cowhead Lake214

2 3 5 4 2

NM

NM NM NM

214

53

035-LK-DEMO

±

117 5 31 74 16 NM NM NM NM Cowhead Lake215

3 4 3 2 5

NM

NM NM NM

215

56

035-LK-DEMO

±

89 35 49 121 11 NM NM NM NM Cougar Mountain216

3 4 2 4 4

NM

NM NM NM

216

56

107135-LK-DEMO

±

124 10 26 78 14 NM NM NM NM Cowhead Lake217

4 4 3 5 2

NM

NM NM NM

217

59

035-LK-DEMO

±

95 39 57 134 12 NM NM NM NM Cougar Mountain218

2 2 2 2 5

NM

NM NM NM

218

28

134935-LK-DEMO

±

95 35 55 132 12 NM NM NM NM Cougar Mountain219

3 2 5 4 2

NM

NM NM NM

219

54

119435-LK-DEMO

±

95 38 51 134 13 NM NM NM NM Cougar Mountain220

3 4 2 3 2

NM

NM NM NM

220

34

121435-LK-DEMO

±

115 3 30 73 16 NM NM NM NM Cowhead Lake221

4 3 3 2 3

NM

NM NM NM

221

49

035-LK-DEMO

±

91 35 53 126 11 NM NM NM NM Cougar Mountain222

2 2 4 2 2

NM

NM NM NM

222

34

109035-LK-DEMO

±

114 5 31 71 17 NM NM NM NM Cowhead Lake223

5 4 4 3 2

NM

NM NM NM

223

50

035-LK-DEMO

±

87 35 51 125 10 NM NM NM NM Cougar Mountain224

5 5 5 4 2

NM

NM NM NM

224

52

117435-LK-DEMO

16A -

All trace element values reported in parts per million; ± = analytical uncertainty estimate (in ppm). Iron content reported as weight percent oxide.

NA = Not available; ND = Not detected; NM = Not measured; * = Small sample; FGV = Fine-grained volcanic specimen.

Table A-1. Results of XRF Studies: 35-LK-DEMOSITE, Lake County, Oregon

Geochemical SourceSite Catalog No. Rb Sr Y Zr Nb Ti Mn

Trace Element Concentrations

Fe O Fe:Mn2 3

Northwest Research Obsidian Studies Laboratory

Fe:TiT

Ratios

Specimen No. Ba

±

109 4 30 70 15 NM NM NM NM Cowhead Lake225

2 4 5 3 5

NM

NM NM NM

225

38

035-LK-DEMO

±

109 3 30 70 15 NM NM NM NM Cowhead Lake226

2 3 2 3 2

NM

NM NM NM

226

32

035-LK-DEMO

±

112 25 23 92 10 NM NM NM NM Drews Creek/Butcher Flat227

5 5 3 2 5

NM

NM NM NM

227

30

5635-LK-DEMO

±

113 4 29 73 16 NM NM NM NM Cowhead Lake228

5 4 3 5 2

NM

NM NM NM

228

46

035-LK-DEMO

±

103 41 60 138 10 NM NM NM NM Cougar Mountain229

2 4 3 2 2

NM

NM NM NM

229

50

111135-LK-DEMO

±

95 37 52 134 12 NM NM NM NM Cougar Mountain230

2 5 2 2 5

NM

NM NM NM

230

53

105935-LK-DEMO

±

121 9 25 78 13 NM NM NM NM Cowhead Lake231

4 4 3 5 2

NM

NM NM NM

231

57

035-LK-DEMO

±

108 8 24 75 11 NM NM NM NM Cowhead Lake232

4 4 2 5 2

NM

NM NM NM

232

60

035-LK-DEMO

±

99 39 54 135 14 NM NM NM NM Cougar Mountain233

5 4 5 2 4

NM

NM NM NM

233

28

120135-LK-DEMO

±

90 33 52 125 11 NM NM NM NM Cougar Mountain234

5 4 4 5 3

NM

NM NM NM

234

34

124635-LK-DEMO

±

127 10 28 78 13 NM NM NM NM Cowhead Lake235

2 2 3 2 4

NM

NM NM NM

235

33

035-LK-DEMO

±

121 4 32 78 16 NM NM NM NM Cowhead Lake236

3 3 3 3 4

NM

NM NM NM

236

49

035-LK-DEMO

±

119 4 30 77 16 NM NM NM NM Cowhead Lake237

5 3 5 5 2

NM

NM NM NM

237

36

035-LK-DEMO

±

115 8 25 73 12 NM NM NM NM Cowhead Lake238

4 2 4 2 4

NM

NM NM NM

238

40

035-LK-DEMO

17A -

All trace element values reported in parts per million; ± = analytical uncertainty estimate (in ppm). Iron content reported as weight percent oxide.

NA = Not available; ND = Not detected; NM = Not measured; * = Small sample; FGV = Fine-grained volcanic specimen.

Table A-1. Results of XRF Studies: 35-LK-DEMOSITE, Lake County, Oregon

Geochemical SourceSite Catalog No. Rb Sr Y Zr Nb Ti Mn

Trace Element Concentrations

Fe O Fe:Mn2 3

Northwest Research Obsidian Studies Laboratory

Fe:TiT

Ratios

Specimen No. Ba

±

114 9 26 78 11 NM NM NM NM Cowhead Lake239

3 3 2 2 3

NM

NM NM NM

239

39

035-LK-DEMO

±

119 25 24 100 12 NM NM NM NM Drews Creek/Butcher Flat240

4 5 3 3 2

NM

NM NM NM

240

39

9035-LK-DEMO

±

99 22 23 84 11 NM NM NM NM Drews Creek/Butcher Flat241

3 2 4 2 2

NM

NM NM NM

241

36

035-LK-DEMO

±

96 38 55 136 12 NM NM NM NM Cougar Mountain242

3 3 5 3 2

NM

NM NM NM

242

32

127935-LK-DEMO

±

131 10 27 82 12 NM NM NM NM Cowhead Lake243

5 5 4 4 2

NM

NM NM NM

243

46

035-LK-DEMO

±

118 4 32 76 15 NM NM NM NM Cowhead Lake244

5 4 2 5 3

NM

NM NM NM

244

54

035-LK-DEMO

±

112 22 23 94 10 NM NM NM NM Drews Creek/Butcher Flat245

5 2 5 5 5

NM

NM NM NM

245

30

4835-LK-DEMO

±

113 5 31 76 15 NM NM NM NM Cowhead Lake246

4 4 3 3 4

NM

NM NM NM

246

51

035-LK-DEMO

±

92 36 53 123 12 NM NM NM NM Cougar Mountain247

2 5 3 3 3

NM

NM NM NM

247

42

113035-LK-DEMO

±

101 40 54 140 13 NM NM NM NM Cougar Mountain248

4 3 3 3 2

NM

NM NM NM

248

59

137735-LK-DEMO

±

95 39 52 131 13 NM NM NM NM Cougar Mountain249

4 4 5 2 3

NM

NM NM NM

249

57

117535-LK-DEMO

±

100 39 57 135 16 NM NM NM NM Cougar Mountain250

3 4 4 4 5

NM

NM NM NM

250

28

122835-LK-DEMO

±

107 6 31 73 15 NM NM NM NM Cowhead Lake251

5 3 4 2 2

NM

NM NM NM

251

38

035-LK-DEMO

±

94 39 54 129 9 NM NM NM NM Cougar Mountain252

5 2 2 4 3

NM

NM NM NM

252

40

111335-LK-DEMO

18A -

All trace element values reported in parts per million; ± = analytical uncertainty estimate (in ppm). Iron content reported as weight percent oxide.

NA = Not available; ND = Not detected; NM = Not measured; * = Small sample; FGV = Fine-grained volcanic specimen.

Table A-1. Results of XRF Studies: 35-LK-DEMOSITE, Lake County, Oregon

Geochemical SourceSite Catalog No. Rb Sr Y Zr Nb Ti Mn

Trace Element Concentrations

Fe O Fe:Mn2 3

Northwest Research Obsidian Studies Laboratory

Fe:TiT

Ratios

Specimen No. Ba

±

103 43 58 143 13 NM NM NM NM Cougar Mountain253

3 2 3 4 4

NM

NM NM NM

253

34

123735-LK-DEMO

±

112 4 30 72 17 NM NM NM NM Cowhead Lake254

3 5 2 3 4

NM

NM NM NM

254

49

035-LK-DEMO

±

90 36 53 128 9 NM NM NM NM Cougar Mountain255

5 5 4 5 5

NM

NM NM NM

255

45

119135-LK-DEMO

±

122 9 27 79 11 NM NM NM NM Cowhead Lake256

2 5 4 3 4

NM

NM NM NM

256

55

035-LK-DEMO

±

110 4 29 70 16 NM NM NM NM Cowhead Lake257

2 4 5 2 2

NM

NM NM NM

257

45

035-LK-DEMO

±

102 41 57 142 12 NM NM NM NM Cougar Mountain258

4 3 4 4 4

NM

NM NM NM

258

51

121735-LK-DEMO

±

108 20 24 84 9 NM NM NM NM Drews Creek/Butcher Flat259

2 2 4 3 4

NM

NM NM NM

259

40

035-LK-DEMO

±

103 42 56 140 14 NM NM NM NM Cougar Mountain260

5 2 3 2 5

NM

NM NM NM

260

59

120835-LK-DEMO

±

121 9 26 86 12 NM NM NM NM Cowhead Lake261

3 5 5 3 3

NM

NM NM NM

261

54

035-LK-DEMO

±

93 34 50 128 13 NM NM NM NM Cougar Mountain262

5 4 2 4 5

NM

NM NM NM

262

36

107435-LK-DEMO

±

89 33 50 120 11 NM NM NM NM Cougar Mountain263

3 3 3 3 5

NM

NM NM NM

263

34

124735-LK-DEMO

±

98 37 57 138 15 NM NM NM NM Cougar Mountain264

5 5 5 2 5

NM

NM NM NM

264

35

133635-LK-DEMO

±

102 40 56 140 13 NM NM NM NM Cougar Mountain265

4 3 5 5 5

NM

NM NM NM

265

30

131135-LK-DEMO

±

103 5 31 69 17 NM NM NM NM Cowhead Lake266

5 2 3 2 3

NM

NM NM NM

266

30

035-LK-DEMO

19A -

All trace element values reported in parts per million; ± = analytical uncertainty estimate (in ppm). Iron content reported as weight percent oxide.

NA = Not available; ND = Not detected; NM = Not measured; * = Small sample; FGV = Fine-grained volcanic specimen.

Table A-1. Results of XRF Studies: 35-LK-DEMOSITE, Lake County, Oregon

Geochemical SourceSite Catalog No. Rb Sr Y Zr Nb Ti Mn

Trace Element Concentrations

Fe O Fe:Mn2 3

Northwest Research Obsidian Studies Laboratory

Fe:TiT

Ratios

Specimen No. Ba

±

89 34 52 124 10 NM NM NM NM Cougar Mountain267

5 2 5 4 3

NM

NM NM NM

267

29

122935-LK-DEMO

±

148 109 22 222 9 NM NM NM NM RGM-1 Reference StandardRGM-1

2 2 5 2 2

NM

NM NM NM

RGM-1

31

794NA

20A -

All trace element values reported in parts per million; ± = analytical uncertainty estimate (in ppm). Iron content reported as weight percent oxide.

NA = Not available; ND = Not detected; NM = Not measured; * = Small sample; FGV = Fine-grained volcanic specimen.