Earth and Environmental Sciences
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Paleoenvironmental Analysis of Halifax Harbour: Sedimentology, Paleoclimatology, and Holocene Sea Level
(1994-03-15)Three cores (numbered 2,9,10) collected from Halifax Harbour using new submersible vibracoring equipment permits a reinterpretation of an acoustically distinct seismostratigraphic unit. This unit, never previously sampled, ... -
Sediment Consolidation and Permeability at the Central Oregon Margin, Ocean Drilling Program Sites 891 and 892
(1994-03-15)Sediment hydraulic conductivity is a critical and highly variable control on the consolidation of accretionary prism materials. The consolidation state and pore pressure conditions within an accretionary prism ultimately ... -
Geochemistry and Petrogenesis of Late Cretaceous Bentonites from the Kanguk Formation, Axel Heiberg and Ellesmere Islands, Canadian High Arctic
(1994-03-15)Petrographic and geochemical analyses of bulk bentonites, volcanic minerals, and unaltered glass inclusions in quartz phenocrysts reveal the composition and tectonic setting of Late Cretaceous explosive volcanism in the ... -
Physical Volcanology, Petrology, and Petrogenesis of the Cretaceous Isachsen Formation Volcanics, Western Axel Heiberg Island, N.W.T.Formation Volcanics, Western Axel Heiberg Island, N.W.T.
(1994-03-15)New data from Bjarnasson Island and Bals Fiord on western Axel Heiberg Island provide insight into the physical volcanology, petrology, and petrogenesis of Cretaceous Isachsen Formation magmatism. The Bjarnasson Island ... -
GEOMETRY AND DEPOSITIONAL SETTING OF THE LATE CARBONIFEROUS MULLINS COAL IN THE SOUTH BAR FORMATION, SYDNEY BASIN, NOVA SCOTIA
(1994-03-15)The three-dimensional geometry of the Mullins Coal (Westphalian C) provides information about its origin and potential for commercial exploitation. Controls for peat accumulation are allogenic in contrast to a previous ... -
Comparison of Siliceous Volcanics from the Clarno and John Day Formations, Oregon
(1993-03-15)The Tertiary Clarno and John Day Formations occur in the Blue Mountains Region of north-eastern Oregon. The two formations are easily distinguishable overall, because the Clarno consists primarily of andesitic to dacitic ... -
Holocene Relative Sea-Level Change in Nova Scotia
(1993-03-15)Core samples collected around Atlantic Canada, specifically from the West Head salt marsh, Chezzetcook Inlet, enable temporal and spatial examination of benthic foraminiferal assemblages. Benthic foraminiferal zonations, ... -
40Ar/39Ar Thermochronology Across a Transect of the Eastern Grenville Front Tectonic Zone and the Western Britt Domain of the Grenville Province, Georgian Bay
(1993-03-15)40Ar/39Ar thermochronology of hornblendes from granitic gneiss and amphibolites in the Central Gneiss Belt (CGB) west of Key Harbour along northern Georgian Bay yields ages ranging from 1016 - 995 Ma. Muscovites from the ... -
Structure of the Dunamagon Granite, Baie Verte Peninsula, Newfoundland
(1994-03-15)New Structural data from field observations and microstructural analysis are the basis of description of structures in the Dunamagon Granite, for the purpose of determining whether it has an intrusive, or tectonic, contact ... -
Paleoceanographic Reconstruction of the Inner Scotian Shelf During the Younger Dryas: A Benthic Foramineral Study
(1994-03-15)Examination of foraminifera from piston core 91-018-53P permits a paleoceanographic reconstruction of the Inner Scotian Shelf, with emphasis on the Younger Dryas cold period. A minimum in the total number of foraminifera ... -
Contact Relations Between The New Ross Leucomonzogranite and the Falls Lake Mafic Porphyry: Evidence for Magma Interactions in the South Mountain Batholith
(1994-03-15)The South Mountain Batholith is a peraluminous composite batholith that intruded over a short interval of time. The batholith consists of 260 intrusive bodies, thus the possibility of magma-magma interactions is high. The ... -
The Geochemistry and Geochronology of the Shelburne Dyke of Nova Scotia and the Messejana Dyke of Spain
(1994-03-15)This paper is a geochemical and geochronological study of two rift-related Mesozoic basaltic dykes. The Shelburne Dyke of Nova Scotia and the Messejana Dyke of Spain are extensive vertical sheets of intrusive rock that are ... -
A Study of Carbonate Rocks From the Late Visean to Namurian Mabou Group, Cape Breton Island, Nova Scotia
(1995-04-15)The Late Visean to Namurian Mabou Group of Cape Breton Island conformably overlies the marine to non-marine Windsor Group and unconformably to conformably underlies the fluviatile Cumberland Group. It represents the first ... -
Structural Geology of the Meguma Group Adjacent to the Eastern Contact of the South Mountain Batholith
(1995-04-15)The purpose of this study is to recognize and evaluate structural features that may be related to the emplacement of the South Mountain Batholith. The Acadian orogeny produced folds within the Meguma Terrane with a north-east ... -
Foraminiferal Assemblages From a Sediment Core From the Inner Scotian Shelf: Implications for Till-Tongue Stratigraphy and Paleoceanography
(1995-04-15)The inner Scotian Shelf juxtaposes the Nova Scotia coastline, ending at the 100 m bathymetric contour, and consists of several zones based on seismic sequences and sea-bottom morphology. At the maximum extent of the last ... -
Structure of Bedrock Offshore From Point Aconi, Cape Breton Island, Nova Scotia
(1995-04-15)The Prince Colliery is a major offshore coal mine operated by the Cape Breton Development Corporation (DEVCO) in the Hub coal seam of the Sydney Mines Formation (Upper Carboniferous). This thesis presents the results of a ... -
Magnetic Susceptibility of Halifax Formation Slates at the Halifax International Airport: Correlation with Potential for Acid Drainage
(1995-04-15)The disruption by excavation or quarrying of sulphide-rich slate units of the Halifax Formation of the Meguma Group of Nova Scotia leads to oxidation of the sulphides and generation of acid drainage. Construction within ... -
Marginal Marine Foraminifera and Thecamoebians in the Upper Cretaceous to Eocene Deposits of the South-Central Pyrenees, Spain
(1995-04-15)The Upper Cretaceous to Eocene marginal marine sediments, in the northeastern Pyrenees of Spain, is a classic area in which to study sequence stratigraphy. Sequence stratigraphy requires strong sea-level control. The ... -
Comparison of Dikes and Screen Units Within the Transition Zone From Extrusives to Sheeted Dikes of the Troodes Ophiolite, Cyprus
(1995-04-15)Petrological and geochemical investigations of a series of interleaved dikes and lava screens from the Transition Constructional Zone of the Troodos ophiolite are studied to determine whether differences in magnetization ... -
Fluid inclusions and microstructure of flexural-slip bedding-concordant veins within the Ovens Anticline, Lunenburg, Nova Scotia
(1996-04-15)Fluid inclusions and microstructure of flexural-slip bedding-concordant quartz veins (FSBCVs) from the Ovens Anticline of the Meguma Group, were assessed and provide data on conditions and mechanisms of flexural-slip ...
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