Table 2. Statistical summary of detrital sand modes and clay mineralogy, Cascadia Basin.
All constituents
Q-F-L modes*
All constituents
Qm-F-Lt modes
Monocrystalline
Qm-P-K modes
Polycrystalline Qp-Lv-Lsm modes
Polycrystalline
Lv-Ls-Lm modes
Clay mineralogy
Q
F
L
Qm
F
Lt
Qm
P
K
Qp
Lv
Lsm
Lv
Ls
Lm
Smec
Illite
Chl + Kaol
Hydrothermal Transition Transect




















Site 1023:






















Average† 37 34 29
30 34 36
47 48 5
19 38 43
47 42 11
7 42 51
SD† 3 2 3
3 2 4
3 3 2
5 6 6
7 7 3
68 7
Maximum† 45 38 34
37 38 42
53 53 10
27 48 55
61 53 16
22 59 67
Minimum† 33 29 22
26 29 30
41 42 0
9 27 28
35 31 5
1 26 36
Site 1024:






















Average† 37 34 29
31 34 35
47 49 4
16 41 43
49 44 7
11 38 51
SD† 3 3 3
3 3 4
3 3 2
4 8 9
10 11 3
9 7 7
Maximum† 41 40 34
35 40 41
53 53 10
23 54 62
66 65 11
31 50 62
Minimum† 30 30 23
26 30 26
42 41 1
11 27 28
30 30 3
1 29 38
Site 1025:






















Average† 34 34 32
29 33 38
46 49 5
16 39 45
47 42 11
10 40 50
SD† 2 4 4
2 4 5
3 3 3
4 7 7
8 7 5
8 8 10
Maximum† 40 42 40
33 42 46
50 54 10
22 53 57
57 56 22
31 51 70
Minimum† 30 27 25
25 27 30
40 43 2
8 28 34
36 35 5
0 25 32
Buried Basement Transect






















Site 1028:






















Average 31 33 36
28 33 39
46 48 6
10 41 49
46 47 7
8 40 52
SD 7 7 13
6 7 13
4 4 3
5 15 19
18 20 3
8 8 9
Maximum 40 45 71
36 45 73
52 55 9
18 57 97
70 99 12
34 51 69
Minimum 13 15 23
12 15 26
39 42 2
2 1 25
1 21 0
2 25 41
Site 1029:






















Average 33 35 32
27 35 38
44 51 5
15 45 40
53 38 9
7 43 50
SD 4 4 5
5 4 5
6 5 2
7 10 11
11 12 5
6 6 7
Maximum 41 44 44
36 44 47
50 63 10
31 59 59
73 61 18
20 53 63
Minimum 24 29 22
19 29 28
34 44 2
5 32 22
36 19 1
1 34 30
Site 1030:






















Average No sand analyzed



















SD

















5
45 50
Maximum



















5 8 8
Minimum



















15 60 64
Site 1031:



















1 35 32
Average No sand analyzed



















SD

















3
48 49
Maximum



















3 8 8
Minimum



















11 65 62
Rough Basement Transect
















0 37
35

Site 1026:






















Average 35 38 27
30 38 32
44 50 6
17 46 37
55 34 11
7 43 50
SD 5 4 4
5 4 4
6 5 3
6 9 10
11 11 4
6 7 7
Maximum 45 46 36
38 46 41
57 61 13
29 60 76
71 75 21
25 57 63
Minimum 28 30 21
20 30 25
33 41 1
5 19 24
20 21 5
0 32 38
Site 1027:






















Average 34 37 29
28 37 35
43 51 6
16 51 33
61 30 9
6 39 55
SD 4 4 4
4 4 6
5 5 3
5 7 9
9 10 4
7 8 8
Maximum 40 51 38
33 51 47
50 65 14
29 67 50
85 50 19
38 49 78
Minimum 26 31 22
19 31 26
30 43 1
8 38 12
44 9 3
1 19 39

Note: * = see Table 1 for explanation of abbreviations, † = excludes intraformational deposits, SD = standard deviation. Smec = smectite, Chl + Kaol = chlorite + kaolinite.