G12 



DATA OF GEOCHEMISTRY 



watered region and the concentration of dissolved 

 salts is not high. A very marked difference is apparent, 

 however, between the waters draining the chemically 

 resistant rocks of the Canadian shield, with total 

 dissolved salts often well below 50 ppm, and those 

 draining the sedimentary rocks of the southern Great 

 Lakes region, with total dissolved salts mostly be- 

 tween 100 and 500 ppm. Some of the Canadian shield 

 waters, such as the Saguenay Eiver, are very dilute, 

 but they are ordinary calcium bicarbonate waters and 



are not otherwise remarkable. Some rivers in the 

 St. Lawrence system, in particular the streams flowing 

 into Lake Erie from the south, such as the Cuyahoga 

 (table 6, analysis I) are subject to heavy industrial 

 pollution. 



ATLANTIC COAST DRAINAGE 



A selection of analyses representing waters of the 

 Atlantic Coast from Nova Scotia to Florida is pre- 

 sented in tables 8, 9, and 10. This is also a well- 

 watered area, and most of its waters are rather dilute. 



Table 6. — Analyses, in parts per million, of water from the St. Lawrence River basin 



A Lake Nipissing at North Bay, Ontario; depth sample 2 miles from shore. 

 May 26, 1939. Leverin (1947), analysis 613. 



B. Lake Couchiching at Orillia, Ontario; depth sample 3 miles from shore. July 17, 



1934. Leverin (1947), analysis 15. 



C. Lake Simcoe, Ontario. Depth sample at mouth of Kampenfeldt Bay. Aug. 12, 



1935. Leverin (1947), analysis 222. 



D. Thames River at Chatham, Ontario. Mean of 6 analyses from 1934-40, Leverin 



(1947), analyses 17, 223, 338, 355, 488, 737. 



E. Grand River at Brantford, Ontario. Mean of 9 analyses from 1934-42. Leverin 



(1947), analyses 20, 266, 337, 352, 467, 486, 597, 736, and 842. 



F. Trent River at Trenton, Ontario. Mean of 4 analyses, 1934-37. Leverin (1947 



analyses 23, 229, 336, 339, 375, and 849. 



G. Lake Temlskamlng at Haileybury, Ontario. Depth sample 1 mile from shore, 



Aug. 27, 1937. Leverin (1947), analysis 363. 

 H. Ottawa, River at Hawkesbury, Ontario. Mean of 8 analyses, 1934-38. Leverin 

 (1947), analyses 2, 3, 207, 335, 346, 347, 496, and 583. 



I. Cuyahoga River at Botaum, Ohio. U.S. Geol. Survey (1952). Mean for 



Oct. 1946-Sept. 1947. 

 J. Magog River at Sherbrooke, Quebec. June 26, 1942. Leverin (1947), analysis 



850. 

 K. Richelieu River at St. Johns, Quebec. Mean of 4 samples, 1935-42. Leverin 



(1947), analyses 219, 318, 799, and 851. 

 L. St. Charles River at Chateau d'Eau, Quebec. Mean of 4 samples, 1934-39. 



Leverin (1947), analyses 13, 213, 322, and 634. 

 M. St. Maurice River at Three Rivers, Quebec. Mean of 5 samples, 1934-41. 



Leverin (1947), analyses 9, 211, 321, 635, and 802. 

 N. Saguenay River at Riverbend, Quebec. July 12, 1935. Leverin (1947), analysis 



217. 

 O. Nipigon River at Nipigon, Ontario. Aug. 2, 1937. Leverin (1947), analysis 362. 



A. Lake Superior. Mean of 6 samples taken from various places on the lake, at H. 



depths from 12 to 20 ft. Leverin (1947), analyses 359, 559, 900, 901, 947, 948. 



B. St. Mary's River at Sault Ste Marie, Ontario. Mean of 5 analyses, 1936-38. I. 



Leverin (1947), analyses 326, 356, 357, 557, 558. 



C. Georgian Bay at Collingwood, Ontario. June 12, 1942. Leverin (1947), analysis J. 



843. 



D. St. Clair River at Point Edward, Ontario. Mean of 4 analyses, 1934-37. Lever- K. 



in (1947), analyses 18, 224, 327, 353. 



E. LakeErieat Fort Erie, Ontario (outletinto NiagaraRiver). Meanof6analyses, L. 



1934-38. Leverin (1947), analyses 22, 227, 329, 350, 466, 598. 



F. Lake Erie at Huron, Ohio. Mean of 7 analyses, Sept. 1950-Sept. 1951. U.S. 



Geol. Survey (1955c). 



G. Lake Ontario at Toronto, Ontario. Mean of 7 samples, 1934-38. Leverin 



(1947), analyses 21, 228, 330, 351, 465, 485, 596. 



St. Lawrence River at Kingston, Ontario. Mean of 8 samples, 1934-42. Leverin 



(1947), analyses 24, 230, 331, 464, 484, 595, 735, 846. 

 St. Lawrence River at Cornwall, Ontario. Mean of 9 samples, 1934-45. Leverin 



(1947), analyses 25, 231, 332, 374, 463, 594, 734, 801, 844. 

 St. Lawrence River at Montreal. Mean of 10 samples, 1934-42. Leverin (1947), 



analyses 7, 26, 208, 232, 333, 345, 348, 349, 632, 847. 

 St. Lawrence River at Sorel, Quebec. Mean of 3 samples, 1934-36. Leverin 



(1947), analyses 8, 220, 334. 

 St. Lawrence River at water works plant at Levis, Quebec, Aug. 1953. Durum, 



Heidel, and Tison (1960). Analysis includes Ag, 0.00094 ppm; Al, 0.276 ppm; 



B, 0.013 ppm; Ba, 0.030 ppm; Co, 0.000 ppm; Cr, 0.012 ppm; Cu, 0.0043 ppm; 



Li, 0.00041 ppm; Mn, 0.021 ppm; Mo, 0.0017 ppm; Ni, 0.0013 ppm; P, 0.000 ppm: 



Pb, 0.0037 ppm; Rb, 0.0014 ppm; Sr, 0.066 ppm; Ti, 0.021 ppm. 



