geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Paleolimnology of three Jackman Sound lakes, southern Baffin Island, based on down-core diatom analyses


, : Paleolimnology of three Jackman Sound lakes, southern Baffin Island, based on down-core diatom analyses. Journal of Paleolimnology 4(3): 203-217

Three lakes, informally named Lakes Inqua, Instaar and Mercer, from the Jackman Sound area in Southern Baffin Island were cored. The elevation of the three lakes are 36 m above high tide (aht), 10 m aht and 1 m aht. The cores from Lakes Inqua and Mercer penetrated the marine/lacustrine boundary; the core from Lake Instaar is estimated to have come within ca. 5 cm of this boundary. In addition, grab samples and water samples were retrieved from the lakes. The cores have been 14C dated (AMS). Emergence of the three lake basins from the sea occurred approximately 8650 BP (Lake Inqua), 8630 BP (Lake Instaar) and 7900 BP (Lake Mercer, averaged date). This suggests a very rapid rate (>5 m/100 yrs) of glacio-isostatic rebound for this area. Down-core analyses of diatom assemblages indicate that the paleolimnology in the three lakes was similar. The diatom analyses suggest a change in climate between approximately 8000 and 6000 BP, which is also reflected in the marine record from the same area, and the onset of the neoglacial period around 4500 to 3800 BP. A decrease in diatom-inferred pH is evident in the lakes' development and can probably be related to the general change of the watershed vegetation with time.

US$19.90

DOI: 10.1007/bf00239695


Other references

Luthra, S.K., 2005: Suitability of induced flowering in potato under short day conditions. The suitability of potato cultivars (CP2366, CP3197, CP3204, CP3208, JI1857, MS/80-758, MS/81-119, MS/82-797, MS/82-828 and MS/864) that were induced to flower as a male or female parent was determined in a field experiment conducted in Meerut, Ut...

Camburn K.E., 1982: The diatoms bacillariophyceae of kentucky usa a checklist of previously reported taxa. For the past 128 yr, 514 diatom taxa representing 50 genera were reported from Kentucky in 37 publications. A brief discussion of the history of diatom research in Kentucky in addition to a checklist of previously reported taxa is presented. This...

Girma, F.S.; Krieg, D.R., 1992: Osmotic Adjustment in Sorghum: II. Relationship to Gas Exchange Rates. Lowering of the solute potential by osmotic adjustment (OA) has been proposed to allow maintenance of leaf turgor potential stomatal conductance (g), and photosynthesis (A) at low leaf water potential. However, literature concerning the role of OA...

Panzoni, E.; Branchi, R.; Piccioli, A., 1983: Etiological study of 2060 cases of fractures of the facial skeleton. Rivista Italiana di Stomatologia 52(11): 907-911

Mcwilliam, L.J.; Knox, W.F.ona; George, N.J., 1995: Angiogenic vessel counts in early prostate cancer. Journal of Urology 153(4 SUPPL ): 485A

Anonymous, 2013: Presencia del virus de influenza aviar en aves silvestres de los humedales de puerto viejo, lima. El objetivo del estudio fue determinar la presencia del virus de influenza aviar (IA) en aves silvestres presentes en los Humedales de Puerto Viejo, en el departamento de Lima. Novecientas muestras de heces frescas de 18 especies de aves silvestre...

Lindsay, D.R.; Francis, C.M., 1968: Cervical mucus measurement in ovariectomized ewes as a bioassay of synthetic and phytooestrogens. Increases in weight of cotton swabs placed in the anterior vagina were used as a measure of cervical mucus production in ovariectomized ewes. Dose-response lines were obtained from graded doses of stilboestrol. Prior treatment with a series of pro...

Giacomini, C.; Ansaloni, F.; Cannata, G.; Girardi, G.; Gatti, S.; Pecci, F., 1992: Agricultural and agro-industrial structures. Papers presented in this workshop on research in progress, introduced by Giacomini, covered studies of types of agricultural business, the identification of innovative processes and links with meat processors. (1) Typology of farm businesses (Ansa...

Ivanov, L., 1959: Le niveau des eaux, factear permettant d'accroitre les reserves et les recoltes de poisson dans ie Danube. CR Acad bulg Sci, 12: 553-556

Azanov, A.G.; Dynkina, R.L., 1973: The effect of peat substrate on the utilization of mineral nutrition and on the yield in hothouse cucumbers. Cucumbers grown on peat substrate in nutrient solution yielded 23% more than those grown on gravel in hydroponic culture. Nutrient utilization in the former was calculated as being 8.28% and in the latter as 2.85%.