000	02007cam  2200301za 4500
001	9.861990
003	CaOODSP
005	20221107160910
007	cr |||||||||||
008	180914s1971    onca||||o    f000 0 eng d
040	|aCaOODSP|beng
043	|an-cn-on
086	1 |aEn36-515/44E-PDF
100	1 |aSly, P. G.|q(Peter Gerent),|d1939-
245	10|aSubmersible operations in Georgian Bay and Lake Erie — 1970 |h[electronic resource] / |cP.G. Sly.
260	|aOttawa : |bDept. of Energy, Mines and Resources, Inland Waters Branch, |c1971.
300	|aiii, 36 p. : |bill.
490	1 |aTechnical bulletin ; |vno. 44
500	|aDigitized edition from print [produced by Environment and Climate Change Canada].
504	|aIncludes bibliographical references.
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.
693	4|aUnderwater explorations
710	1 |aCanada. |bEnvironment Canada.
710	1 |aCanada. |bInland Waters Branch.
710	1 |aCanada. |bDepartment of Energy, Mines and Resources.
830	#0|aTechnical bulletin (Canada. Inland Waters Branch)|vno. 44|w(CaOODSP)9.861115
856	40|qPDF|s2.19 MB|uhttps://publications.gc.ca/collections/collection_2018/eccc/En36-515-44-eng.pdf