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					Appendix B11. Se concentration in saturated paste extract
leachates from rock (SPE-A), a second extraction (SPE-B), and
Se concentration in rock from USGS 11-10-ft samples, 1-foot
increment samples collected at 10-foot intervals from core USGS 11

The rock samples used for SPE–A and SPE–B are different from the
sub-samples used for SWE-A and SWE-B in Appendix B13.
[Se concentrations in rock from Appendix B3;
Lithology: CLST = claystone, SH = shale, SLST = siltstone, SS =
sandstone; Lithologic Modifier (see Appendix A4); ND = not detected]

Sample ID         SPE-A      SPE-B     Rock         Lithology Lithologic
Interval feet    Se μg/L    Se μg/L Se μg/kg                  Modifier
23-24                3.2                 ND         SS
30-31               19.0                 777        SS
40-41               11.1                 ND         SS
50-51                ND                  ND         CLST
60-61               99.7                 ND         SS
70-71                4.3                 ND         SS
80-81                9.2                 ND         SS
90-91               10.5                 ND         SS        COAL STR
100-101              7.3                 ND         SS
110-111             45.7                 ND         SH        CARB
130-131             14.5                 739        SS
140-141             35.7                 371        SLST
150-151             29.8                 193        SS
160-161              3.4                 ND         SS
170-171              3.4                 233        SS
180-181              ND                  708        SH        ROOT
190-191             12.1                 285        SS
200-201              2.1                 ND         SS
210-211             16.5                 ND         SLST      SDY
220-221              ND                   10        SS
230-231              2.1                  90        SS
240-241             82.6                 ND         SH        ROOT
250-251             12.5                 ND         SS        SH STR
260-261             13.4                 ND         SS
270-271              9.2                 355        SS
281-282              ND                  600        SH        BLK
290-291            221.9                 413        SH
300-301             59.9                 119        SLST
310-311             15.9                 ND         SH
320-321              6.5                 ND         SS
330-331              8.5                 ND         SS
340-341              1.8                 ND         SS
350-351              8.2                  10        SS
360-361              6.8                 ND         SS
371-372              ND                   54        SH        BLK
380-381              2.8                 115        SS
390-391              5.0                 ND         SS
402-403             39.7                1100        CLST      ROOT
410-411             12.9                 120        SH        SLTY
420-421              1.7                 ND         SS

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Sample ID        SPE-A     SPE-B     Rock    Lithology Lithologic
Interval feet   Se μg/L   Se μg/L Se μg/kg             Modifier
430-431             ND                 460   SS        COAL STR
440-441             2.6                 20   SS
450-451             8.7                200   SS
460-461             0.5                480   SS
470-471             7.4                580   SS
480-481             ND                 160   SS
490-491             6.1                220   SS
500-501             6.3                660   SS
510-511             5.3                740   SS
520-521             4.2                120   SS
530-531             7.0                180   SS
540-541            12.0      12.1       60   SS
550-551             8.6       8.5      480   SS
562-563           122.9     124.6     1200   SH
571-572           121.0     121.5      840   CLST      ROOT
580-581            21.5      20.1      660   SLST
590-591             7.4      10.9      600   SS
600-601             4.2       5.0       60   SS
620-621             2.5                ND    SS
630-631             4.9                ND    SS
640-641             6.7                ND    SS
650-651            62.1                ND    SLST      SH STR
660-661            20.1                ND    SLST
670-671           134.6                ND    SH
680-681            24.9                ND    SLST
690-691             5.1                ND    SS
700-701           100.5                ND    CLST      ROOT
710-711            13.5                ND    SS        SLTY
720-721             4.9                ND    SS
730-731             1.8                500   SS
740-741            14.1                420   SS
750-751             2.9                 20   SS
760-761             2.1                ND    SS
770-771             4.9                540   SS
780-781            44.4                ND    SH
790-791            12.1                ND    SH        SS STR
800-801             2.1                140   SS
810-811             ND                 260   SS
820-821             5.5                ND    SS
830-831             ND                 180   SLST      ROOT
840-841            14.4                ND    SS        SH INBD
850-851             0.1               1840   SS        CALC
860-861            13.2                160   SS
870-871            34.7               1080   SS
880-881            37.0                980   SS
890-891            33.4                700   SH
900-901            27.6               1240   SS




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