The chemistry, mineralogy, and rates of transport of sediments in the ...

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TABLE 1 . Location of stations, dimension, and properties of rivers and streams of the Mackenzie and Porcupine River watersheds, N .W .T . and Yukon . Ad - watershed area in 10 3 km 2 , Qa = range of annual discharge in km3, L = length in km, SSi = range of suspended sediment concentrations in mg L-1 , all for 1971-74 period of observation . Some data (Qa and Ad) is from Water Survey of Canada records . See Campbell et al . (1975) for complete data . River Ad Qa SS4 Location of Station 1 W GROUP 1 Arctic Red R . 18 .0 4 .60 - 4 .94 460 0 .46 - 790 66°47' 133°06' Peel R . 70 .0 19 .8 - 22 .0 550 0 .24 - 580 67°27' 134°52' Mackenzie R . (Norman Wells) 1570 247 - 285 872 3 .5 - 1800 65°16' 126°49' Liard R . (Ft . Liard) 222 53 .3 - 63 .9 685 3 .3 - 560 60°15' 123°29' Liard R . (Ft . Simpson) 248 78 .4 - 78 .9 1000 0 .36 - 1100 61°50' 121 ° 20' South Nahanni R . (Clausen Creek) 33 .4 11 .3 - 13 .3 312 18 - 500 61°15' 124°02' South Nahanni R . (Virginia Falls) 14 .6 7 .08 - 7 .14 177 0 .66 - 230 61°38' 125°30' GROUP 2 Willowlake R . 21 .6 1 .44 - 1 .99 264 1 .3 - 100 69 ° 39' 122°S5' Martin R . 1 .98 0 .156 - '105 2 .2 . - 120 61 °55' 121 ° 35' Harris R . 0 .741 0 .017 50 -
, 35 e TABLE 2a . Slopes ') and inte cepts (a), of the regression lines in Fig . 1, SS,~ - , relating suspended sediment concentrations (SSi) to discharge (Qi) . Also given are the levels of significance of the slopes (a) and the correlation coefficient (r) for each line . River a b r 1-a (%) GROUP 1 N Arctic Red 0 .03 - 1 .55 0 .92 99 .9 Peel 0 .006 1 .38 0 .87 99 .9 Mackenzie (Norman Wells) 0 .0000003 2 .12 0 .85 99 .9 Liard (Ft . Liard) 0 .04 1 .03 0 .81 99 .5 Liard (Ft . Simpson) : 0 .000006 2 .05 0 .91 99 .9 South Nahanni (Clausen Creek) 0 .0001 2 .17 0 .97 95 .0 South Nahanni (Virginia Falls) 0 .01 1 .40 0 .94 99 .9 GROUP 2 Will owlake 0 .52 0 .60 0 .64 97 .5 Martin 4 .54 0 .44 0 .62 99 .5 Harris 1 .86 0 .30 0 .54 97 .5 Caribou Bar 1 .45 0 .94 0 .89 99 .9 GROUP 3 4-- Mackenzie (Ft . Providence) 0 .008 0 .78 0 .48 90 .0 0 .03 1 .14 0 .98 97 .5 Trout (at Highway) Great Bear (Not significant)
Page 1 and 2: Department of the Environment Minis
Page 3 and 4: iii TABLE OF-CONTENTS Page List of
Page 5 and 6: V TABLE 8 . Page Mean annual rates
Page 7 and 8: vii LIST OF FIGURES Page Figure 1 .
Page 9 and 10: ix ABSTRACT Brunskill, G . J ., P .
Page 11 and 12: xi RESUMt Brunskill, G . J ., P . C
Page 13 and 14: 1 INTRODUCTION In regions of northe
Page 15 and 16: 3 Stream and river bottom sediments
Page 17 and 18: Annual rates of transport were obta
Page 19 and 20: 7 The total mass of sediments remov
Page 21 and 22: 9 Only two clay minerals were found
Page 23 and 24: 11 increased sediment concentration
Page 25 and 26: 13 changes in albedo, and the gener
Page 27 and 28: 15 Increases in the concentrations
Page 29 and 30: 17 which is positively related to w
Page 31 and 32: 19 and velocity (Fig . 1) . For the
Page 33 and 34: 21 It will be necessary to quantify
Page 35 and 36: 23 CONCLUSIONS 1 . For selected riv
Page 37 and 38: 25 REFERENCES Abrahams, A . D . and
Page 39 and 40: 27 Corbel, J . 1964 . L erosion ter
Page 41 and 42: 29 Hughes, 0 . L ., J . J . Veillet
Page 43 and 44: 33 McRoberts, E . C . and N . R . M
Page 45: 33 Tarnocai, C . 1973 . Soils of th
Page 49 and 50: 37 i TABLE 2c . Slopes (b) and inte
Page 51 and 52: i 39 b TABLE 3 . Average annual mas
Page 53 and 54: 41 v b TABLE 5 . Cation exchange ca
Page 55 and 56: N c . P TABLE 7a . Ranges of concen
Page 57 and 58: I a m r TABLE 8 . Mean annual rates
Page 59 and 60: 01 TABLE 10. Mean annual rates of t
Page 61 and 62: 49 TABLE 12 . Significance of regre
Page 63 and 64: TABLE 14 . Mean concentrations of s
Page 65 and 66: 9 Q TABLE 16 . A comparison of annu
Page 67 and 68: TABLE 17 . cont'd River Year Date S
Page 69 and 70: S TAME 17 . cont'd River Year Date
Page 71 and 72: TABLE 17 . cont'd River Year Date Q
Page 73 and 74: It • TABLE 17 . cont'd River Year
Page 75 and 76: TABLE 17 . cant 'd River Year Date
Page 77 and 78: 2 =0.67 100,000- N E Y a 10,000- Y
Page 79 and 80: c 11 I C- 10 - E n I, 0 10- E e 0.1
Page 81: II (m 3 vnnr - ' v In'6 1 r r, m A

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