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Now showing items 1554-1573 of 3622
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The genetic diversity of eastern North American tree species as related to the extent of their spatial distribution during the Last Glacial Maximum
(2020)The distribution of boreal and temperate species during the last glacial maximum (LGM) in Eastern North America can have a significant effect on the genetic diversity of present day populations. Here, I modelled the LGM ... -
Genetic profiling variation caused by tissue type, error, and damage
(2006)Genetic profiling variations caused by tissue type, error, and damage have been studied only minimally in the past. Even though it is well accepted that damage to the DNA molecule and PCR induced error occur, little focus ... -
Genetic variation and adaptation of white birch populations across Canada
(2014-01-22)Trees adapt to local climates, however growing concern surrounding climate change has generated predictions suggesting mass extinction or redistribution of taxa across the landscape. A lack of redistribution will result ... -
Genetic variation in growth and yield components of juvenile balsam poplar (Populus balsamifera L.) growing in northwestern Ontario / by Frank Schnekenburger
(1988)A nursery and greenhouse study of balsam poplar (Populus balsamifera L.) were carried out in Thunder Bay, Ontario, to study the extent and nature of variation in growth and its relation to the following yield components: ... -
Genetic variation in height and diameter of tamarack (Larix Laricina) and their correlation with syllepsis
(1997)The broad sense heritability of total height, annual height increment, diameter, volume index and syllepsis of II provenances of tamarack in northwestern Ontario were examined. Genetic and Pearson Product Moment correlations ... -
Genetic variation in physiology and growth under ambient and elevated CO2 concentrations in four provenances of Populus tremuloides from Northwestern Ontario
(2003)Trembling aspen (Populus tremuloides Michx.) is the most widely distributed and probably most genetically varied woody species in North America. Four provenances of trembling aspen seedlings from northwestern Ontario ... -
Genetic variation in the frost hardiness of Pinus banksiana Lamb. (jack pine) in Northwestern Ontario
To estimate the level and pattern of variation in frost hardiness, artificial freezing tests of 64 provenances of jack pine were conducted. The provenances originated from northern Ontario. Seedlings of the provenances ... -
Genetic variation in traits affecting the water relations of balsam poplar along a latitudinal transect in Northwestern Ontario
(1992)Genetic variation In traits potentially affecting the waterrelations of balsam poplar (PopuIus balsamifera L.) clones from four provenances along a transect from northern Wisconsin to Pickle Lake in northwestern Ontario ... -
Genetic variation of functional traits related to drought tolerance in yellow birch seedlings
(2022)Understanding patterns of variation in drought-related traits of hardwood trees is crucial for conserving and managing North American temperate forests under climate change. In this study, I examined provenance variation ... -
Genetic variation of wood properties in balsam poplar (Populus balsamifera L.)
(1995)Genetic variation in wood properties among and within three provenances of balsam poplar was investigated. Between 1982 and 1984, clonal populations were sampled along the Longitude 9QOW in North Wisconsin (Lat. 45°N ... -
Genetic variation of wood properties in tamarack (Larix laricina (Du Roi) K. Koch)
(1996)Genetic variation of tracheid length, specific gravity, latewood percentage, height growth, and ring width among and within four provenances of tamarack (Larix laricina (Du Roi) K. Koch) was investigated in a ten-year-old ... -
Geochemical and toxicological investigation of the Hogarth and Caland Pit Lakes, former Steep Rock Iron Mine site
(2012-11-10)The closure of the Steep Rock Iron Mines near Atikokan, Ontario, Canada in the late 1970's left behind an area of severe environmental concern. The subsequent flooding of the pit mines resulted in the formation of two ... -
Geochemistry and Au mineralization within the Kakagi-Rowan Lakes greenstone belt : a study of the Angel Hill Gold Zone
(2012-11-10)The Angel Hill Gold Zone of the West Cedartree Gold Project has been exposed over 300 meters along the internal contact of ultramafic and gabbroic rocks within the Kakagi Sill. The sill lies within the Kakagi-Rowan Lakes ... -
Geochemistry and mineralization of the Archean Titan (Roaring River) intrusion, Thunder Bay, Ontario
(2023)The 2690 ± 3.2 Ma Titan intrusion is an approximately 7 by 3 km, roughly ovoid, mafic-ultramafic intrusion, located just north of the inferred boundary between the Winnipeg River and Marmion terranes. Outcrop in the area ... -
Geochemistry and mineralizaton of the Lundmark Akow area, North Caribou Greenstone belt, Ontario
(2024)The Lundmark Akow area is located in the south-central porƟon of the South Rim assemblage of the North Caribou Greenstone Belt. The mineralizaƟon consists of several base metal-bearing massive sulphide horizons hosted ... -
Geochemistry and paragenesis of magnetite bearing gabbros from the Mine Block Intrusion at Lac des Iles Mine, Northern Ontario
(2024)The Mine Block Intrusion (MBI) is a 3 km by 1.5 km tear-shaped mafic complex that was emplaced along with other mafic-ultramafic plutonic rocks of the South Lac des Iles Complex (LDIC) between 2,699 and 2,686 Ma in the ... -
The geochemistry and petrogenesis of the Ni-Cu-PGE Shakespeare deposit, Ontario, Canada
(2015-08-05)The Shakespeare intrusion, which hosts the Shakespeare Ni-Cu-PGE sulfide deposit, is part of the 2.2 Ga Nipissing Gabbro magmatic event, a large mafic-ultramafic suite located in the southern Superior and Southern Province. ... -
Geochemistry and petrography of the ultramafic metavolcanic rocks in the eastern portion of the Shebandowan greenstone belt, Northwestern Ontario
(2018)The 2.7 Ga Shebandowan greenstone belt in the Wawa-Abitibi terrane contains unusual ultramafic rocks. The two main assemblages present within the study area are the Greenwater and Shebandowan assemblages. The 2719.7 ± ... -
Geochemistry and PGE mineralization of the Kitto intrusion : a product of Mesoproterozoic plume magmatism through fault bounded archean crust, East Nipigon Embayment, Northern Ontario
(2007)The Kitto intrusion is a Mesoproterozoic 1117.7 ±1.8 Ma peridotitic to gabbroic intrusion, that formed as a result of plume magmatism and was emplaced along Mesoproterozoic and Archean faults in the East Nipigon Embayment ... -
Geochemistry of shallow and deep water archean meta-iron formations and their post-depositional alteration in western Superior Province, Canada
(2018)One purpose for studying banded meta-iron formations is to determine the chemical composition of seawater in the Archean ocean and the oxygen content of the Archean oceanic-atmospheric system. Geologists use the geochemistry ...