https://knowledgecommons.lakeheadu.ca/handle/2453/12 2024-09-04t12:51:18z https://knowledgecommons.lakeheadu.ca/handle/2453/5340 ore mineralogy of mattabi mine, northwestern ontario, canada abdallah, geoffrey khalil the mattabi mine, a volcanogenic massive sulfide deposit located 60 km north of ignace ontario, in the archean superior province, produced 13.5 mt of ore with an average grade 7.5% zn, 0.88% cu, 0.77% pb and 3.10 oz/t ag in the period 1970-1983. preliminary studies indicated the presence of an especially varied mineral assemblage, which was studied in detail. as well as chalcopyrite and sphalerite, the deposit contains abundant galena accounting for its unusual lead production. argentian tetrahedrite, or frelbergite, is also abundant, and in the absence of native silver and acanthite, is clearly a major carrier of silver. [...] 1990-01-01t00:00:00z https://knowledgecommons.lakeheadu.ca/handle/2453/5339 petrographic and fluid inclusion studies on the metalore-golden highway deposit, thunder bay district, ontario kowalski, barbara sylvia the gold-bearing metalore shear zone and golden highway quartz-carbonate vein in the beardmore-geraldton archean greenstone belt occur along the paint lake splay faults at the contact between metavolcanic rocks and metaconglomerates intruded by pre-ore diorite. the metalore and golden highway deposits were emplace during a late tectonic event. the consist primarily of quartz, clinochlore, ankerite, potassium feldspars, sericite, pyrite, argentite and chalcopyrite with native gold. the minearls have been deformed and are cut by at least three healed fractures by fluid inclusions. gold typically occurs in recrystallized quartz. microthermometric and raman spectroscopy techniques were used to study fluid inclusions in quartz, calcite, ankerite, chlorites and potassium feldspars. [...] 1993-01-01t00:00:00z https://knowledgecommons.lakeheadu.ca/handle/2453/4510 immunological consequences of chemically induced generalized motor epilepsy chretien, roland the purpose of this study was to determine if the stress created by a generalized motor seizure was significant enough to alter the immune response. criterion measures of anitgen binding capacity (abc) to human serum albumin (hsa) were obtained from 39 female and 36 male satinder's heterogenous strain (shs) albino rats. within 30 seconds after a second hsa injection (booster), rats were either injected with metrazol to produce generalized (motor) convulsions, or with cyclophosphamide, an immunosuppressive drug (comparator treatment). a third group served as a saline-injection control and a fourth as an undisturbed control group. multivariate analysis of variance (manova) demonstrated a highly significant immunosuppression 4 days later in rats that had displayed brief motor convulsions and had been administered cyclophosphamide. injection and undisturbed controls did not differ significantly from each other. by the 10th day after the booster and treatments, abc measures for the drug treated rats (metrazol, cyclophosphamide) were not significantly different from controls. however on the 10th day females showed significantly higher abc measures than did males. the degree of immunosuppression seen on day four was moderately correlated to the severity of the seizure observed. these results suggest that the seizuring of an animal is a stressful event capable of suppressing humoral immunity, and that the degree of suppression is positively correlated to the severity of the seizure. 1990-01-01t00:00:00z https://knowledgecommons.lakeheadu.ca/handle/2453/4457 return to innocence zoccole, owen can native people of today return to live in a "traditional" lifestyle? this was the question that the people of lac des milles lacs through their attempt to return to their homeland, posed in 1988. five families, responding to imposed restrictions, government regulations and the impact of modern society, moved to recreate their community on the traditional lands of thier people. 1997-01-01t00:00:00z