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Depositional Framework and Regional Correlation of Pre-Carboniferous Metacarbonate Rocks of the Snowden Mountain Area, Central Brooks Range, Northern Alaska
Lithofacies, conodont biostratigraphy and biofacies, and depositional environments of pre-Carboniferous metacarbonate rocks, correlation with other sequences across northern Alaska, and paleogeographic and paleotectonic implications.
The Narrow Edge
Thousands of ravenous tiny shorebirds race along the water's edge of Delaware Bay, feasting on pin-sized horseshoe-crab eggs. Fueled by millions of eggs, the migrating red knots fly on. When they arrive at last in their arctic breeding grounds, they will have completed a near-miraculous 9,000-mile journey that began in Tierra del Fuego. Deborah Cramer followed these knots, whose numbers have declined by 75 percent, on their extraordinary odyssey from one end of the earth to the other—from an isolated beach at the tip of South America all the way to the icy tundra. In her firsthand account, she explores how diminishing a single stopover can compromise the birds' entire journey, and how the ...
Canadiana
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The Great Ordovician Biodiversification Event
Two of the greatest evolutionary events in the history of life on Earth occurred during Early Paleozoic time. The first was the Cambrian explosion of skeletonized marine animals about 540 million years ago. The second was the "Great Ordovician Biodiversification Event," which is the focus of this book. This is the first book devoted specifically to establishing the global patterns of differentiation of Ordovician biotas through time and space. It provides extensive genus- and species-level diversity data for the many Ordovician fossil groups and presents an evaluation of how each group diversified, with assessments of patterns of change, and rates of origination and extinction.
Thermal Maturation of Paleozoic Strata in Eastern Canada from Conodont Colour Alteration Index (CAI) Data with Implications for Burial History, Tectonic Evolution, Hotspot Tracks and Mineral and Hydrocarbon Exploration
This work provides an important insight into the structural development of the Appalachian Orogen, and also serves as a guide to thermal maturity of strata, a property that is important in hydrocarbon and mineral exploration.
Ordovician Stratigraphy and Faunas of the Glenogle Formation, Southeastern British Columbia
The Glenogle Formation of British Columbia consists mainly of shale sections, and its graptolite faunas have been known for over a century but their stratigraphic setting has been uncertain. Recently discovered sections that are less contorted than most well-known localities allow elucidation of the formation's stratigraphy and of its succession of graptolite faunas. This report describes these newly discovered stratigraphic sections, outlines the stratigraphy & depositional environments of the Glenogle, puts forward a biostratigraphic synthesis of the graptolite faunas, and relates this zonation to North American zonations provided by conodonts & shelly fossils and to other graptolite sequences throughout the world.
