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| 02007cam 2200301za 4500 |
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001 | 9.861990 |
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003 | CaOODSP |
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005 | 20221107160910 |
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007 | cr ||||||||||| |
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008 | 180914s1971 onca||||o f000 0 eng d |
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040 | |aCaOODSP|beng |
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043 | |an-cn-on |
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086 | 1 |aEn36-515/44E-PDF |
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100 | 1 |aSly, P. G.|q(Peter Gerent),|d1939- |
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245 | 10|aSubmersible operations in Georgian Bay and Lake Erie — 1970 |h[electronic resource] / |cP.G. Sly. |
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260 | |aOttawa : |bDept. of Energy, Mines and Resources, Inland Waters Branch, |c1971. |
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300 | |aiii, 36 p. : |bill. |
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490 | 1 |aTechnical bulletin ; |vno. 44 |
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500 | |aDigitized edition from print [produced by Environment and Climate Change Canada]. |
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504 | |aIncludes bibliographical references. |
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520 | 3 |a"Most of the studies undertaken by the Limnogeology Section are directed towards obtaining a clearer understanding of geologically recent and present environmental controls, particularly those related to eutrophication and pollution. Research activities have mostly been conducted from surface vessels, using standard sampling, coring and sensing equipment. However, some detailed surveys and equipment trials have been supported by scuba diving techniques (Sly l969a), and over the past three years, the demand for diver supported operations has grown progressively. The need to understand sediment distributions and to quantify variations, which can be used to reflect short—term environmental changes as they relate to specific problem areas (Sly 1969b), has also become more and more evident"--Introd. |
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693 | 4|aUnderwater explorations |
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710 | 1 |aCanada. |bEnvironment Canada. |
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710 | 1 |aCanada. |bInland Waters Branch. |
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710 | 1 |aCanada. |bDepartment of Energy, Mines and Resources. |
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830 | #0|aTechnical bulletin (Canada. Inland Waters Branch)|vno. 44|w(CaOODSP)9.861115 |
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856 | 40|qPDF|s2.19 MB|uhttps://publications.gc.ca/collections/collection_2018/eccc/En36-515-44-eng.pdf |
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