Lower to middle devonian acritarchs of the Moose River basin, Ontario

Abstract Peatland waters of the Moose River basin, as well as surficial sediments and vascular plants of the estuary were sampled in 1982. Elevated levels of PCBs were found at all five peatland sites; concentrations ranged from 28 to 65 ng/L. Of the seventeen organochlorine pesticides investigated, the hexachlorocyclohexane isomers (a-and y-BHC) were the most prominent with total BHC concentrations ranging from 1.5 to 13.7 ng/L. The presence of these contaminants in ombrotrophic bogs indicated that there was atmospheric deposition of organochlorine contaminants in the basin. Analyses of surficial sediments, collected from tidal flats and coastal marshes, showed that PCBs and organochlorine pesticides were not present. Samples of Triglochin maritima L. seed heads and Typha latifolia L. roots were also free of PCBs.

Download Full-text

Silurian conodont biostratigraphy and carbon (δ13Ccarb) isotope stratigraphy of the Victor Mine (V-03-270-AH) core in the Moose River Basin

Canadian Journal of Earth Sciences ◽

10.1139/cjes-2015-0091 ◽

2015 ◽

Vol 52 (12) ◽

pp. 1169-1181 ◽

Cited By ~ 6

Author(s):

Alyssa M. Bancroft ◽

Frank R. Brunton ◽

Mark A. Kleffner

Keyword(s):

River Basin ◽

Conodont Biostratigraphy ◽

Marine Strata ◽

Carbonate Carbon ◽

Isotope Stratigraphy ◽

Moose River

The Moose River Basin in Ontario, Canada, contains nearly 1 km of Silurian marine strata, and although it has been studied for more than a century, its precise correlation globally has not been constrained. Herein, a core from the Victor Mine in the Moose River Basin was examined for conodont biostratigraphy and carbonate carbon (δ13Ccarb) isotope chemostratigraphy to provide a detailed chronostratigraphic framework for the Silurian strata (Severn River, Ekwan River, and Attawapiskat formations) in the Moose River Basin. The recovery of Aspelundia expansa, Aspelundia fluegeli fluegeli, Distomodus staurognathoides, Ozarkodina polinclinata estonica, Pterospathodus eopennatus, and Aulacognathus bullatus, as well as the lower Aeronian, upper Aeronian, lower Telychian (Valgu), and ascending limb of the Sheinwoodian (Ireviken) positive carbonate carbon (δ13Ccarb) isotope excursions provide significantly improved chronostratigraphic correlation of Llandovery strata in the Moose River Basin.

Download Full-text

A Late Pleistocene plant-bearing deposit in Currie Township, near Matheson, Ontario

Canadian Journal of Earth Sciences ◽

10.1139/e79-100 ◽

1979 ◽

Vol 16 (5) ◽

pp. 1130-1136 ◽

Cited By ~ 5

Author(s):

W. E. Brereton ◽

J. A. Elson

Keyword(s):

River Basin ◽

Late Pleistocene ◽

Glacial Lake ◽

Fossil Plants ◽

Fossil Plant ◽

James Bay ◽

Plant Detritus ◽

Lake Ojibway ◽

Moose River ◽

James Bay Lowlands

Two overburden test holes drilled to bedrock in Currie Township, southwest of Matheson, Ontario, penetrated stratified beds containing fossil plant detritus resting on an oxidized substrate, which are between two till sheets underlying glacial Lake Ojibway-Barlow varved clays. The fossil plants, chiefly mosses, represent an environment that is common in the region today, and are radiocarbon dated (GSC-2148) as older than 37000 years. The interglacial deposit is tentatively correlated with the Missinaibi Formation in the Moose River basin of the James Bay lowlands, probably of Sangamon age.

Download Full-text

Geochemistry of two Cretaceous coal-bearing sequences: James Bay lowlands, northern Ontario, and Peace River basin, northeast British Columbia

Canadian Journal of Earth Sciences ◽

10.1139/e87-100 ◽

1987 ◽

Vol 24 (5) ◽

pp. 1038-1052 ◽

Cited By ~ 17

Author(s):

E. Van der Flier-Keller ◽

W. S. Fyfe

Keyword(s):

British Columbia ◽

Trace Elements ◽

River Basin ◽

Pearson Correlation ◽

Northern Ontario ◽

Local Conditions ◽

Modes Of Occurrence ◽

Peace River ◽

Element Contents ◽

Moose River

Cretaceous coal-bearing sequences from the Moose River basin in northern Ontario and the Peace River basin in northeast British Columbia were analysed for trace- and major-element contents. Modes of occurrence of the trace elements are proposed on the basis of Pearson correlation coefficients and scanning electron microscopy coupled with energy-dispersive X-ray analysis.The Moose River basin lignite was deposited in an alluvial floodplain environment, and the restricted mineralogy, dominated by quartz and kaolinite, reflects derivation from a highly weathered terrain. The bituminous coal from the Peace River basin was deposited in an alluvial to deltaic environment, with a dominant mineralogy including quartz, illite, kaolinite, mixed-layer clays, carbonates, barite, feldspar, and pyrite.Trace-element contents in both deposits are comparable to the average concentration in United States coals. Modes of occurrence of trace elements in the coals are extremely variable and depend on local conditions both during deposition and subsequently. Association with the organic matter is the most common mode of occurrence of trace elements in the Moose River basin lignites, whereas clay minerals are important trace-element sites in the Peace River basin coal.Factors including coal rank, clay mineralogy, nature of the surrounding rocks, and composition of the groundwaters appear to have important influences on the concentrations of the trace elements and their siting in the coals.

Download Full-text