| Title | L'analyse des sédiments lacustres |
| Download | Download (whole publication) |
|
|
| Licence | Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences. |
| Author | Francus, P; Fortin, D |
| Source | Utilisation des archives naturelles pour la reconstitution du passé hydro-climatique; by Bégin, C (ed.); Nicault, A (ed.); Bégin, Y (ed.); Geological Survey of Canada, Open File 8768, 2021 p. 53-59, https://doi.org/10.4095/328069  Open Access |
| Year | 2021 |
| Publisher | Natural Resources Canada |
| Document | open file |
| Lang. | French |
| Media | on-line; digital |
| Related | This publication is contained in Utilisation des archives
naturelles pour la reconstitution du passé hydro-climatique |
| File format | pdf |
| Province | Quebec |
| NTS | 23E; 23L; 33E; 33F; 33G; 33H; 33I; 33J; 33K; 33L |
| Area | Complexe La Grande |
| Lat/Long WENS | -78.0000 -70.0000 55.0000 53.0000 |
| Subjects | environmental geology; hydrogeology; surficial geology/geomorphology; stratigraphy; Nature and Environment; Science and Technology; surface waters; lakes; lake sediment cores; lake sediment thickness;
varves; laminations; climatology; paleoclimatology; hydrologic environment; runoff; paleoenvironment; Le projet ARCHIVES; lacustrine sediments; Climate change; Hydrology; Boreal ecosystems; Forests; Phanerozoic; Cenozoic; Quaternary |
| Illustrations | location maps; core logs; photographs |
| Program | Climate
Change Geoscience Extreme Events |
| Released | 2021 06 28 |
| Abstract | Lacustrine sedimentary sequences represent, in addition to tree rings, another indirect source of information on past hydro-climatic conditions. The laminated sequences of sediments stands as 'varves'
when being established to be annual. They are lithogenic or clastic when they originate from the accumulation of terrigenous sediments related to seasonal variations of hydrologic run-off. The ARCHIVES experts has adopted a procedure for prospecting
lakes likely to have varved sediment sequences, for sampling, collecting, conserving and processing sediments samples, and for the construction of 'composite' sedimentological series. The measured characteristics of the latter (thickness of the
varves) are compared with the hydroclimatic data registers and also with the other reconstructions established by dendrochronology. |
| GEOSCAN ID | 328069 |
|
|