7 record(s) found for principle investigator "Ritchie, J.C." (multi-year projects are grouped):
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Reconstruction of post-glacial vegetation and climate in the Inuvik and Tuktoyaktuk area
Principal Investigator: Ritchie, J.C.
Licenced Year(s): 1988 1987
Summary: Dr. Ritchie is looking at live plants and the remains of plants at the bottom of lakes to see how plants and weather have changed since the glaciers left the Inuvik and Tuktoyaktuk area 10,000 years ago....


Licence #5023
Principal Investigator: Ritchie, J.C.
Licenced Year(s): 1985
Summary: April - to take 5 cm diamete rcores of unconsolidated lake mud from 6 small lakes; July - to conduct a survey of the vegetation surrounding the lakes sampled in the above winter coring operation....


Licence #4041
Principal Investigator: Ritchie, J.C.
Licenced Year(s): 1984
Summary: 1) To survey the area between 120 degree W and 68 degree and 70 degree N for small lakes suitable for subsequent coring of unconsolidated sediment. 2) To take small samples of surface mud from a selection of roughly 40 lakes during the course of this survey....


Licence #2730
Principal Investigator: Ritchie, J.C.
Licenced Year(s): 1982
Summary: Sampling & coring lake sediments through the ice....


Licence #2630
Principal Investigator: Ritchie, J.C.
Licenced Year(s): 1981
Summary: (a) To collect a series of lake sediments; (b) To collect selected plant groups and conduct vegetation analysis....


Licence #2418
Principal Investigator: Ritchie, J.C.
Licenced Year(s): 1979
Summary: To examine and sample unconsolidated sediments of small unnamed lake for future laboratory analysis and dating. The ultimate objective is to reconstruct the past vegetation and climate of the area....


Licence #2253
Principal Investigator: Ritchie, J.C.
Licenced Year(s): 1978
Summary: To examine and sample the unconsolidated sediments of various small lakes in an area surrounding Hyndman Lake (50 km. radius) ESE of Inuvik, for the purpose of making laboratory analyses of Carbon - 14 age, pollen stratigraphy and other microfossils. The ultimate objective is to reconstruct the past vegetation and environment of the area....


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