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The Applicability of the 40Ar/39Ar Stepwise Outgassing Method to the Dating of Slates
(1980-03-15)
Four samples ranging in composition from a pure slate to a pure metasiltstone, collected from the same location in the Lower Paleozoic Meguma Group, are age dated by the 40Ar/39Ar stepwise outgassing technique. The discordant ...
Evolution of the Phlogopite-Chrome Diopside-Spinel Pools in the Ultramafic Nodules of Pipe 200, Northern Lesotho
(1980-03-15)
Peridotites are ultramafic igneous plutonic rocks consisting of predominantly ferromagnesian minerals. Their mineralogy reflects their stability field at different pressures and temperatures.
olivine-2 pyroxenes-garnet: ...
Geological and Mineralogical Studies at the West Gore Stibnite-Gold Property, Hants County, Nova Scotia.
(1980-03-15)
The West Gore mine was the major producer to antimony in Canada from 1882 to 1939, and it is listed among the gold deposits of Nova Scotia. However, the last comprehensive geological report on the camp dates to 1939. This ...
Depositional and Environmental Interpretation of the Meander River Carbonate Sheet, Avondale, Hants County, Nova Scotia.
(1979-03-15)
Detailed investigation of the Lower Carboniferous Meander River carbonate sheet (Limestone 2, Subzone D of the Windsor Group) exposed at Avondale, Hants County, Nova Scotia, reveals a pair of incomplete, asymmetrical, ...
A Field Geological Study and Analysis of Joint Patterns Related to the Francoeur-Arntfield (Gold Mines) Shear Zone, Beauchastel Township, Temiscamingue County, Abitibi Greenstone Belt, Quebec.
(1980-03-15)
Field mapping (1:5000) and study of joints in an area of 7.3 square kilometres centered around the Arntfield Gold Mines, during the summer of 1979, forms the basis for this study.
East-striking, north-dipping rocks of ...
Environmental Interpretation of the Upper 3C, the 4R, and the Lower 4E Member a of the Helikian-Aged Parry Bay Formation, Bathurst Inlet, N.W.T.
(1979-03-15)
A stromatolitic, clastic, dolomite-mudstone section, within the central portion of the Parry Bay Formation, Bathurst Inlet, N.W.T., is described. The section is divided into seven lithological units, each of which are ...
Heavy Mineral Provenance Studies on the Wallace River Formation of the Pictou Group between Tatamagouche and River John, Nova Scotia
(1980-03-15)
Heavy mineral provenance studies were conducted on sandstones of the Wallace River Formation (Pictou Group) over an area of roughly 200 km2. As well, three major heavy mineral provinces were established. The strata cropping ...
Post-Pleistocene Sea Level Changes in the Baie Verte Estuary (Northumberland Strait) as Revealed by Foraminiferal Studies
(1980-03-15)
Two cores were obtained from the Baie Verte estuary of the Northumberland Strait to study relative sea level changes by examination of foraminiferal distributions.
The base of the cores contained a layer of salt marsh ...
Occurrence and Origin of Garnet in the South Mountain Batholith
(1980-03-15)
Garnet occurs around the margin of the South Mountain batholith as an accessory mineral in three distinct comagmatic phases. Electron microprobe analyses and textural relationships of 50 garnet-biotite pairs indicates that ...