deep sea drilling project initial reports volume 33mineral notes twelve

17. X-RAY MINERALOGY DATA FROM THE CENTRAL PACIFIC,LEG 33 DEEP SEA DRILLING PROJECT1

H.E. Cook and I. Zemmels, University of California, Riverside, California

METHODS

Semiquantitative determinations of the mineral com-position of bulk samples, 2-20 µm, and

H. E. COOK, I. ZEMMELS

TABLE 1Summary of X-Ray Mineralogy Samples, Sample Depths,Lithology, Age, and X-Ray Diffraction Results, Site 314

SampleDepth Below

Sea Floor(m)

0.0045 a

(M5a

Lithology

Brownzeolitic

clay

Age

Quat.?

Bulk SampleMajor Constituent

1 2 3

Clin. Magn. Goet.Phil. Mica Quar.Phil. Mica Quar.

2-20 µm FractionMajor Constituent

1 2 3

Clin. Magn. Goet.Phil. Mica Clin.Phil. Mica Quar.

X-RAY MINERALOGY DATA

TABLE 3Summary of X-Ray Mineralogy Samples, Sample Depths,

Lithology, Age, and X-Ray Diffraction Results, Hole 315A

SampleDepth Below

Sea Floor(m)

76.682.9

124.9142.6148.9260.0372.1465.9513.5591.0703.6

731.3739.3741.4779.2779.6788.5797.1799.2808.6818.7826.9830.0836.8837.0

850.5856.0858.3875.9893.4

911.3932.7952.8952.9970.9990.0

Lithology

Unit 2:Variegated

nanno-foramand

nanno-radoozes

Unit 3:Claystone,

chert,and

limestone

Unit 4:Volcanic sand-stone and clay-stone interbed.With clayey

limestone

Unit 5:Red-brown

and blue-greenferr. claystonesinterbed. Withgraded volcanic

sands

Age

o

c c« ao o.SP§

?ö

a

H. E. COOK, I. ZEMMELS

TABLE 4Summary of X-Ray Mineralogy Samples, Sample Depth,Lithology, Age, and X-Ray Diffraction Results, Site 316

SampleDepth Below

Sea Floor(m)

0.8

2.7155.3268.3

391.8448.6469.3486.5495.9515.4524.7533.6553.3562.9571.8573.6

583.1584.4587.4609.8610.5613.6630.6638.4641.8642.1667.1668.1686.7704.5705.7727.0744.8771.2830.3

Lithology

U n i t l : a

Unit 2:calc. and

siliceous oozesand chalk

Unit 3:Siliceous chalk,limestone, and

dolomite

Unit 4:Volcaniclastic

brecciaand gradedsandstone,chalk, andlimestone

Age

a

o 0

s «d>

1o

1ou

Io

X-RAY MINERALOGY DATA

TABLE 5Summary of X-Ray Mineralogy Samples, Sample Depths,

Lithology, Age, and X-Ray Diffraction Results Hole 317A

SampleDepth Below

Sea Floor(m)

554.2564.5576.9585.0602.4623.3644.1

651.0670.0698.6727.7755.9756.7757.4759.4777.7778.1779.6821.1849.9887.4887.4

927.5

Lithology

Unit 2:Foram-nanno

oozes andchalk withblack chert

Unit 3:Volcaniclastic

sandstones andsiltstones

Basalts withsiltstones

Age

u

β S° 8If

u

so

Mp

£ o

Bulk SampleMajor Constituent

1

Calc.Calc.Calc.Paly.Calc.Cris.Calc.

Mont.Mont.Mont.Mont.Mont.Mont.Mont.Mont.Mont.Mont.Mont.Mont.Mont.Mont.Mont.

Plag.

2

Clin.Quar.Quar.K-Fe.Cris.Calc.Mont.

Plag.Anal.Sani.K-Fe.Hema.Sani.Sani.Anal.Sani.Sani.Sani.Anal.Anal.Anal.Anal.

Mont.

3

Mica

K-Fe.Quar.Quar.Trid.K-Fe.

Clin.

Anal.Plag.Quar.Anal.

Sani.Anal.Calc.Anal.Sani.Sani.

Hema.

2-20 µm FractionMajor Constituent

1

Clin.K-Fe.K-Fe.K-Fe.Cris.Cris.Clin.

Plag.Mont.Mont.K-Fe.Mont.Mont.Mont.Mont.Mont.Mont.Mont.Mont.Mont.Anal.Mont.

Plag.

2

Quar.Quar.Quar.MicaQuar.K-Fe.K-Fe.

Mont.Anal.Anal.Mont.Feld.Sani.Sani.Sani.Sani.Sani.Sani.Sani.Sani.Mont.Sani.

Quar.

3

K-Fe.MicaMicaQuar.Bari.Trid.Plag.

Quar.

Sani.Plag.Hema.Hema.Anal.

Anal.Anal.Anal.Anal.Anal.Sani.Anal.

Hema.

H. E. COOK, I. ZEMMELS

TABLE 7Summary of X-Ray Mineralogy Samples, Sample Depths,Lithology, Age, and X-Ray Diffraction Results, Site 318

SampleDepth Below

Sea Floor(m)

1.393.7

122.5179.7

266.5350.8

407.5492.7

578.5581.1615.8630.7665.6703.8734.5

Lithology

Unit l:a

Unit 2:Foram-nanno

ooze

Unit 3:Foram-nanno

chalkUnit 4 :

Nanno-foramlimestoneUnit 5:

Limestone,siltstone,

and gradedsandstone

Age

a

•2 °

à, dD Oo o

O Q. .

• o O

TABLE 9Results of X-Ray Diffraction Analysis, Hole 315

SampleDepth Below

Sea Floor(m)

Bulk Sample

1.303.90

57.9059.2061.9065.50

Amor.

20.424.747.626.826.919.0

2-20 µm Fraction

1.303.90

57.9059.2061.9065.50

87.686.789.886.783.891.6

TABLE 10Results of X-Ray Diffraction Analysis, Hole 3ISA

Arag. Feld.a Quar. Cris. K-Fe. Plag. Kaol. Mica Chlo. Goet. Paly. Mont. Trid. Clin. Phil. Pyri. Hema. Gyps. Bari. Amph. Gibb. Magn.

SampleDepth Below

Sea Floor(m)

Bulk Samples

76.682.90

124.90142.60148.90260.00372.10465.90513.50591.00703.60731.30739.30741.40779.20779.60788.50797.10799.20808.60875.90893.40911.30932.70952.80952.90970.90990.00

Amor.

20.517.319.219.720.818.718.717.112.110.218.210.088.313.774.873.366.048.134.244.732.847.256.445.751.844.545.370.8

2-20 µm Fraction

82.90124.90142.60148.90260.00372.10465.90513.50591.00703.60731.30739.30741.40779.20779.60788.50797.10799.20808.60818.70826.90836.80837.00850.50856.00858.30875.90893.40

86.196.190.897.476.995.594.691.595.288.537.690.313.559.648.747.337.353.236.847.649.244.641.134.523.838.248.044.6

Calc. Dolo

100.099.7

100.099.499.2

100.098.6

100.0100.0100.0100.098.461.726.714.6_ __ __ _

88.376.677.250.417.1- __ _

93.6_ _-

8.0

15.2

0.3

0.20.2

0.1

0.23.9

48.123.625.926.628.84.68.78.9

36.848.2

0.675.8

19.953.9

7.95.72.48.42.16.14.4

5.91.01.96.9

35.628.625.126.725.140.828.623.636.525.69.7

1.153.269.5

22.3

12.1

56.7

15.5

8.75.03.87.20.61.21.21.66.4

43.9

2.94.1

19.610.4

_15.714.322.9

13.88.2

13.2

8.711.95.19.29.5

12.717.019.731.0

9.87.1

66.536.810.16.4

6.66.13.24.70.40.80.71.64.24.1

1.41.9

10.113.46.8

40.413.612.44.7

13.85.4

10.3

9.58.33.66.05.46.65.92.3

10.26.4

37.311.75.83.83.9

2.3

12.422.816.017.03.15.74.02.2

12.30.9

14.82.3

36.02.5

9.19.6

16.23.5

6.13.4

12.413.34.4

11.218.57.46.8

23.49.95.71.21.01.6

15.35.9

20.0

2.2

0.7

0.7

12.5

0.8

14.4

9.0

0.9

0.5

2.914.916.914.011.3

1.52.97.43.46.9

32.49.41.2

31.324.2

13.821.124.327.0

1.54.10.64.22.9

16.9_-0.4_

0.50.4

1.5

0.40.6

0.3

0.917.7

5.11.8

2.4

4.113.643.2

8.7

6.75.7

18.5_8.15.16.34.06.1_4.35.00.75.5

47.612.249.016.73.9

—--7.6_-__—__—__-____

7,57.5- -_ _

24.336.325.743.819.744.742.413.214.355.6

2.33.95.6— —9.4

1.91.2

2.9_

13.4

__-__

_____

—-

_0.1—

-_-_-_

-0.1__

—-

_-—

11.251.776.341.8

1.855.968.872.478.948.717.851.0

61.7

8.4

7.4 0.37.33.84.7

0.91.0

911.30932.70952.80952.90970.90990.00

TABLE 11Results of X-Ray Diffraction Analysis, Site 316

Sample DepthBelow SeaFloor (m) Amor. Calc. Dolo. Feld.a Quar. Cris. K-Fe. Plag. Kaol. Mica Chlo. Goet. Paly. Mont. Trid. Clin. Phil. Anal. Hema. Pyri. Gibb. Gyps. Bari. Augi. Magn. U-2b

Bulk Sample

0.802.70

155.30268.30391.80448.60469.30486.50495.90515.40524.70533.60553.30562.90571.80573.60583.10584.40587.40609.80610.50613.60630.60638.40641.80642.10667.10668.10686.70704.50705.70727.00744.80771.20830.30

31.815.820.821.629.820.555.222.5-7.311.510.013.129.020.321.4

8.720.674.610.624.852.1

9.016.013.420.435.316.418.87.7

25.944.338.944.738.715.5

2-20 µm Fraction

0.802.70

155.30268.30391.80448.60469.30486.50495.90515.40524.70533.60553.30562.90571.80573.60583.10584.40587.40609.80610.50613.60630.60638.40641.80

86.992.296.395.295.295.832.932.4

-19.866.157.640.149.649.950.045.838.743.644.645.439.643.742.235.634.7

97.699.8

100.094.599.1

100.083.4

97.4 0.534.698.1 0.399.898.996.298.596.398.878.416.395.281.752.097.191.396.080.566.298.295.598.078.577.6 0.158.473.141.895.1

0.3

0.3

0.40.2

0.20.2

0.80.35.31.70.20.71.60.81.01.2

19.236.1

3.215.10.32.22.32.70.10.80.70.71.40.69.30.91.02.51.5

22.327.913.310.313.116.013.49.3

14.730.530.340.241.233.632.438.073.046.857.643.8

1.758.127.039.8

3.3

47.1

80.0

5.3

3.5 1.1

1.3 0.9

0.8 0.5

5.4 5.2

7.47.8

6.22.0

20.013.112.7

2.2

5.713.54.6

17.831.928.014.8

7.6

14.415.713.723.124.619.69.2

12.912.814.9

2.615.0

7.616.044.3

4.84.2

1.81.66.22.90.7-

20.420.3

7.017.420.818.29.85.7

6.32.36.37.77.16.66.0

8.48.37.21.25.93.36.26.4

5.1

1.0

0.9

0.5

1.4

3.3

1.0

1.0

17.51.61.4

1.11.3

0.95.91.3

0.9

11.912.4

-

13.514.15.22.3

21.623.118.716.516.517.017.73.6

11.317.813.63.6

11.48.88.15.9

1.64.44.4

__

-

1.61.21.01.91.2

-0.9

__

1.51.0

_____

3.0

0.9

10.0

1.546.7

0.76.20.64.3

13.61.13.50.6

11.63.46.76.1

30.70.4

6.0

8.1

12.018.1-

I3.3-

__

-

_-1.0

2.51.40.9

2.12.14.0

0.61.32.4

81.0

44.21.14.2

0.7

5.61.8

11.9

5.4

2.49.3

0.41.0

0.20.40.42.2

0.5

1.42.8

42.064.9

0.5

23.419.90.7

13.36.2

8.221.011.6

0.6

0.7

1.7

0.4

0.71.8

0.2

0.49.6

1.23.4

0.4

4.9

1.3

0.5

2.3

0.9

0.1

0.1

1.10.9

0.7

15.3

9.5

0.10.80.20.30.8

0.2

5.2

6.117.3

31.120.044.554.515.714.114.810.2

11.08.0

13.80.8

14.117.623.3

4.0

3.50.91.4

7.9

3.7

6.0

PTR

aw

§

642.10667.10668.10686.70704.50727.00744.80771.20830.30

TABLE 12Results of X-Ray Diffraction Analysis, Hole 317A

Calc. Dolo. Quar. Cris. K-Fe. Plag. Kaol. Mica Chlo. Paly. Mont. Trid. Clin. Phil. Anal. Hema. Pyri. Gibb. Gyps. Apat. Bari. Amph. Magn. Sani.

SampleDepth Below

Sea Floor(m)

Bulk Sample

554.20564.50576.90585.00602.40623.30644.10651.00670.00698.60727.70755.90756.70757.40759.40777.70778.10779.60821.10849.90887.40887.40927.50

Amor.

41.27.4

52.556.9

7.1-6.228.744.213.252.548.352.758.251.062.843.058.848.549.144.825.139.447.9

2-20 µm Fraction

554.20564.50576.90585.00602.40623.30644.10651.00670.00698.60727.00755.90756.70757.40759.40777.70778.10c

779.60821.10849.90887.40887.40927.50

30.124.031.449.7

-12.9-33.421.249.1

3.045.663.759.164.666.662.064.858.062.458.556.635.260.939.1

Feld.a

_—_____-___

6.5__-________

Calc

82.997.878.2

-43.734.37,8.7

_—-___-__4.5_-1.40.4_

-

0.3

2.52.28.39.75.90.60.62.10.2

2.32.8

—___

42.255.5

__

-

_

1.5_7.3

10.8-0.94.8_

-

17.1_

0.8_--.-0.43.3

16.0-

11.1_

—__

___

0.6-

_

3.0_5.9----_

-

_

8.1

0.9 63.3

2.3

8.7 36.1 10.5

16.643.034.620.725.1

2.33.15.70.3

3.74.4

—_--

56.675.8

__

-

_

9.647.842.623.7

1.16.1

23.3_1.7-

46.2_

5.94.01.12.80.72.1

15.254.8

-

20.9_

9.05.2

20.021.0

—_

0.81.7 4.1

0.5

8.1

13.4

0.7

2.91.2

10.0 45.3

1.8 1.0

1.1

7.8

5.6

1.0

10.5

0.93.3

37.052.156.129.183.687.376.591.566.681.664.173.840.230.176.64.3

7.8

1.4—1.56.0

71.876.358.669.590.491.795.680.192.884.588.388.868.792.394.813.4

5.54.3----_---_---

—1.23.29.5------__-

-10.0

5.48.6

45.0 3.8

6.9

0.733.8

2.0

23.412.4

2.40.5

11.12.52.84.16.4

25.75.73.8

0.8

1.5

0.1

0.4_

0.2__

—6.0__

0.3

—_2.00.51.5

—__0.71.5

4.60.6

29.1

5.23.88.94.78.37.64.84.21.5

1.413.2

8.3

0.98.6—

0.71.6

11.11.59.5

—1.3

10.2

10.3

45.922.9

I3.7

7.63.04.86.9

17.454.3

8.7_

—-

5.55.5-

_-----0.6

10.6

0.7

0.4

0.9

20.9

7.119.38.5

25.87.3

30.316.537.914.513.0

O

TABLE 13Results of X-Ray Diffraction Analysis, Hole 317B

Dolo. Arag. Feld. Cris. K-Fe. Plag. Kaol. Mica Chlo. Mont. Trid. Clin. Gibb. Quar. Gyps. Apat. Bari. Psü.a Magn.

SampleDepth Below

Sea Floor(m)

Bulk Sample

0.3027.4065.70

102.20141.20179.50220.70227.10266.80312.40352.30389.40

Amor.

23.421.126.520.317.323.735.721.829.529.517.428.9

2-20 µm Fraction

0.3027.4065.70

102.20141.20179.50220.70227.10266.80352.30389.40

31.010.532.580.889.491.9

_94.8

2.632.341.8

TABLE 14Results of X-Ray Diffraction Analysis, Site 318

SampleDepth Below

Sea Floor(m)

Bulk Sample1.30

93.70122.50179.80266.50350.80407.50492.70578.50581.10615.80630.70665.60703.80743.50

Amor.

39.427.031.025.230.330.825.029.727.234.710.245.769.458.341.2

2-20 µm Fraction

1.30179.80266.50350.80407.50492.70578.50581.10615.80630.70665.60703.80743.50

48.791.394.795.150.156.756.933.738.172.943.446.437.1

H. E. COOK, I. ZEMMELS

TABLE 15Samples Used in X-Ray Diffraction

Analysis, Leg 33 (Compositedsamples are bracketed)

TABLE 15 - Continued

Sample(Interval in cm)

Site 314

3,CCXX

Hole 315

1-1, 130-1321-1, 135-1371-2, 20-221-2, 88-901-3, 85-874-1,143-1454-2,121-1234-2,135-1374-3, 56-584-3, 85-8744, 87-894-4, 116-1184-5, 7-94-5,130-1324-6, 148-150

Hole 315 A

1-1,108-1101-5,90-921-5,95-971-6,136-1381-6,142-1442-1, 140-1422-1,145-1473-1,40423-1,68-703-3, 70-723-3, 74-763-5, 70-723-5,138-1404-3,103-1054-3,117-1195-2, 59-615-2,144-1466-1,87-896-1,92-946-2,128-1306-2,140-1427-1,94-967-1,100-1027-2, 69-717-2, 98-1008-2, 97-998-2,101-1039-1, 108-1109-1,120-12210-1,52-5410-1,70-7210-1,115-11710-6, 100-10210-6,102-10411-1,134-13611-1,146-15015-1,114-11615-2, 82-8416-1, 101-10317-1,7-9

Depth BelowSea Floor (m)

0 4 50 4 5

1.3'1.41.72.43.9

57.959.259.460.160.461.9'62.262.663.865.5

76.682.983.084.984.9,

124.9125.0142.6'142.9145.9146.0148.9'149.6.260.0260.2372.1373.0465.9'465.9467.8467.9513.5"513.5514.7515.0,591.0'591.0 J703.6'703.7731.3 ^731.4732.0

•

739.3739.3741.4 1741.5 J779.2779.6788.5797.1

Sample(Interval in cm)

19-2,118-12019-3,52-5320-1,143-14420-2, 96-97204, 0-15021-2, 32-3421-2, 32-3421-2,4647224,145-14623-2,49-5123-3,130-13124-2, 136-13725-1,138-13925-2, 72-7425-3,48-5026-1,26-2826-1,130-13227-2,119-12028-3, 75-7728-3, 85-8729-2, 136-13830-2,148-150

Site 316

1-1,83-851-1,85-881-2,116-1181-2,118-1202-2, 80-82.52-2, 82.5-853-1,126-1283-2, 72-744-1,124-1284-1, 128-1315-1,110-1155-2, 101-1047-2,133-1359-1,100-10210-1,91-9311-1,135-13812-1,123-12612-2,15-1713-1,56-5915-1,101-10316-1,137-14017-1,77-8017-2, 104-10618-2,109-11118-3, 96-9918-5, 84-8619-1,83-8519-1,146-150194, 10-1420-2,112-11421-1,92-9621-3, 25-2921-3,126-128214,8-1123-1,104-10723-1,54-5624-2, 20-2324-3, 63-6625-1,454725-2, 20-2226-3, 95-9727-2,141-14628-1,64-66

Depth BelowSea Floor (m)

818.71819.5 J826.91828.0]830.0836.81836.8]837.0850.5856.0858.3875.9893.4]894.2 \895.5 J911.31912.3J932.7952.8952.9970.9990.0

0.80.92.72.7

155.3155.3268.31269.2J391.81393.3J448.6\450.0J469.3486.5495.9515.4524.71525.2]533.6553.3562.9571.8573.6583.1584.4587.4609.8610.5613.6630.6638.41640.8]641.8642.1667.1668.1686.7*1688.6]704.5705.7727.0744.8771.2

554

X-RAY MINERALOGY DATA

TABLE 15 - Continued TABLE 15 - Continued

Sample(Interval in cm)

30-2, 132-134

Hole 317A

2-1,22-242-1,41-433-1,103-1053-1,128-1303-2, 25-273-2, 28-305-1,93-956-2, 103-1058-1,90-9210-2,128-13010-2,130-13212-4, 5-713-2,49-5115-2, 53-55154,102-10418-2,60-6218-2, 72-7420-3, 50-5222-2, 84-8622-3,18-2022-3, 86-88224,139-141244, 70-72244,107-10924-5,113-11526-1,107-10926-2, 25-2728-1,134-13830-1,88-9233-3, 0 4

Hole 317B

1-1,20-221-1,22-241-1,101-1021-2,102-1041-2, 29-311-6, 100-1021-6, 102-1044-2, 40424-2, 43454-3, 82-844-3, 85-878-2, 70-728-2, 73-7584, 60-6284, 63-6512-1,70-7212-1,73-7512-3,404212-3,434512-5, 60-6212-5,63-6516-1,134-13616-1,136-13816-2, 60-6216-2, 62-64164,100-102164,103-10516-6, 60-6216-6, 62-6420-2,53-5520-2, 98-100204, 58-60204, 60-6220-6, 78-8020-6,81-83

Depth BelowSea Floor (m)

830.3

554.2'554.4564.5'564.8565.3565.3576.9585.0602.4623.3)623.3 J644.1651.0670.0 1673.5 J698.6 \698.7 J727.0755.9756.7757.4759.4777.7778.1779.6821.1821.8849.9887.4927.5

0.3'0.31.11.11.98.68.6.

27.4'27.429.329.465.765.768.668.6

102.2'102.2104.9104.9108.1108.1 ,141.2'141.2141.9141.9145.3145.3147.9147.9.179.5'180.0182.6182.6185.8185.8.

Sample(Interval in cm)

244, 70-9025-2, 54-5625-2, 56-58254, 3840254,52-5425-6, 30-3225-6,48-5029-3, 80-8229-3, 82-8429-5,5-729-5,13-1534-2,404234-2, 434534-5, 76-7834-5, 86-8838-3,79-8138-3, 82-84384, 90-92384, 93-9542-2,140-142

Site 318

1-1,129-1321-2, 82-851-3,65-701-3, 72-7814,65-7214, 72-761-5,94-1034-1,41434-1,45474-2, 71-734-2, 74-764-3, 72-744-3, 74-7644 , 70-7244, 74 764-5,52-544-5, 56-584-6, 79-824-6, 83-825-1,75-785-1,78-807-1,75-777-1,78-807-2, 75-777-2, 80-827-3,120-1227-3, 123-12574, 70-7274, 72-7410-2,100-10210-2,106-10810-3,70-7210-3, 72-7513-1,124-12713-2, 33-3515-1,95-9815-2,126-12918-1,71-7318-2,137-13921-1,94-9721-2,18-2021-3,62-6424-1,25-29254,120-12228-2,106-11030-2, 128-132324, 0-3

Depth BelowSea Floor (m)

220.7227.l'227.1229.9230.0232.8233.0266.8266.8269.1269.1312.4312.4317.3317.4352.3352.3353.9353.9'389.4

1.32.33.73.75.25.27.0

93.7'93.895.595.697.097.198.598.699.899.9

101.6101.6.122.5123.9 .179.8'179.8181.3181.3183.2183.2184.2184.2,266.5266.6267.7267.7350.8 '351.3407.5 '409.3 .492.7494.9578.5 '579.2581.1615.8630.7665.6703.8743.5

555