Download or read book Wisconsinan Glacial and Sea level History of Maritime Canada and the Adjacent Continental Shelf written by and published by . This book was released on 1998 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Wisconsinan glacial history of maritime Canada records the interaction of land-based glaciers with the sea, which dissects the region along the deep embayments of the Bay of Fundy and the Laurentian Channel. This paper presents a new empirical model of ice advances and retreats in the Wisconsinan period, and relative sea-level changes for eastern Canada, incorporating concepts from both terrestrial and marine study areas. Five glacier flow events are described and discussed in detail and the case for extensive early Wisconsinan glaciation of maritime Canada is summarized.
Download or read book Deglacial History and Relative Sea level Changes Northern New England and Adjacent Canada written by Thomas K. Weddle and published by Geological Society of America. This book was released on 2000 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 13 papers in this collection examine the coastal regions, the Gulf of Maine, and the continental shelf off of Atlantic Canada in context with new radiocarbon age analyses, providing a detailed history of climate changes, marine transgression, emergence, and relative sea- level history. Specific topics include deglaciation of the Gulf of Maine, Late Quaternary morphogenesis of a marine-limit delta plain in southwest Maine, morainal banks and the deglaciation of coastal Maine, and glacial dynamics, deglaciation, and marine invasion in southern Quebec. Material originated at a March 1998 symposium held in Maine at the 33rd Annual Meeting of the Northeastern Section of the Geological Society of America. Weddle is affiliated with the Maine Geological Survey. Retelle teaches geology at Bates College. Annotation copyrighted by Book News Inc., Portland, OR.
Download or read book Wisconsinan Glaciation of the Atlantic Continental Shelf of Southeast Canada written by L. H. King and published by . This book was released on 1986 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: Areas of the eastern eastern Gulf of Maine, Scotian Shelf and Grand Banks ofNewfoundland were examined using the Juntec deep-towed, high-resolution, seismic stratigraphy, together with regional surficial geologicalformations. This approach provided new insight into the nature of theglacial environment of the shelf, the relationship between the glaciomarineand glacial sediments, the depositional processes which led to the formationof these units, and the extent and age of glaciation of the shelf and itsrelationship to the glacial history of the mainland.
Download or read book Geological Survey of Canada Open File 5025 written by and published by Natural Resources Canada. This book was released on with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geological Survey of Canada Open File 3920 written by and published by Natural Resources Canada. This book was released on with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Deglacial History and Relative Sea level Changes Northern New England and Adjacent Canada written by Geological Society of America and published by Boulder, Colo. : Geological Society of America. This book was released on 2000 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 13 papers in this collection examine the coastal regions, the Gulf of Maine, and the continental shelf off of Atlantic Canada in context with new radiocarbon age analyses, providing a detailed history of climate changes, marine transgression, emergence, and relative sea- level history. Specific topics include deglaciation of the Gulf of Maine, Late Quaternary morphogenesis of a marine-limit delta plain in southwest Maine, morainal banks and the deglaciation of coastal Maine, and glacial dynamics, deglaciation, and marine invasion in southern Quebec. Material originated at a March 1998 symposium held in Maine at the 33rd Annual Meeting of the Northeastern Section of the Geological Society of America. Weddle is affiliated with the Maine Geological Survey. Retelle teaches geology at Bates College. Annotation copyrighted by Book News Inc., Portland, OR.
Download or read book Quaternary Glaciations Extent and Chronology written by J. Ehlers and published by Elsevier. This book was released on 2004-10-02 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the second of three volumes in which the recent knowledge of the extent and chronology of Quaternary glaciations has been compiled on a global scale. This information is seen as a fundamental requirement, not only for the glacial community, but for the wider user-community of general Quaternary workers. In particular the need for accurate ice-front positions is a basic requirement for the rapidly growing field of palaeoclimate modelling. In order to provide the information for the widest-possible range of users in the most accessible form, a series of digital maps was prepared.The glacial limits were mapped in ArcView, the Geographical Information System (GIS) used by the work group. Included with the publication is a CD with digital maps, showing glacial limits, end moraines, ice-dammed lakes, glacier-induced drainage diversions and the locations of key sections through which the glacial limits are defined and dated. The last deglaciation is also shown in 500 year time-steps. The digital maps in this volume cover the USA and Canada and include Greenland and Hawaii. Both overview maps and more detailed maps at a scale 1: 1,000,000 are provided.Also available:Part I: Europe, ISBN 0-444-51462-7Part III: South America, Asia, Africa, Australia, Antarctica, ISBN 0-444-51593-3
Download or read book Landscapes and Landforms of Eastern Canada written by Olav Slaymaker and published by Springer Nature. This book was released on 2020-02-13 with total page 597 pages. Available in PDF, EPUB and Kindle. Book excerpt: This critical book focuses on the geomorphological landscapes of eastern Canada and provides a companion volume to “Landscapes and Landforms of Western Canada” (2017). There are a number of unique characteristics of eastern Canada’s landscapes, notably its magnificent coastlines, the extraordinary variety and extent of wetlands, the huge Great Lakes-St. Lawrence basin, the high incidence of meteorite craters, the spectacular Niagara Falls, urban karst in Montreal and Ottawa, youthful, glaciated karst in Ontario, Newfoundland, Quebec and Nova Scotia, the ubiquitous permafrost terrain of Nunavut, Labrador and northern Quebec and the magnificent arctic fjords and glaciers. Looking at coastlines, the tidal extremes of the Bay of Fundy are world renowned; the structural complexity of the island of Newfoundland is less well known, but produces an astounding variety of coastlines in close succession; the arctic fjordlands of Baffin and Ellesmere islands and the extravagant raised beaches of Hudson Bay bear comparison with the classic fjords of Norway and the Baltic Sea raised beaches. As for wetlands, there are distinctive Arctic, Subarctic, Boreal, Eastern Temperate and Atlantic wetlands, and their extent is second only to those of Russia. In the Hudson and James Bay regions, between 75-100% of the terrestrial surface is comprised of wetlands. One of North America’s largest river basins, the Great Lakes-St. Lawrence basin, has its source in Minnesota, straddles the USA-Canada border and debouches into Quebec as the St. Lawrence River and evolves through its estuary into the Gulf of St. Lawrence, a journey of almost 5,000 km. As far as meteorite craters are concerned, 10% of the world’s total are located in eastern Canada, including some of the largest and most complex landforms. They are preserved preferentially in the ancient Shield terrain of Quebec. Finally, the three million km2 of permafrost controlled relief in eastern Canada serves as a reminder of the vulnerability of eastern Canada’s landscapes to climate change. Effects of warming are expressed through thawing of the permafrost, disruption of transportation corridors and urban construction problems, ever-present geomorphic hazards.
Download or read book Climate Change in the Polar Regions written by John Turner and published by Cambridge University Press. This book was released on 2011-05-12 with total page 449 pages. Available in PDF, EPUB and Kindle. Book excerpt: The polar regions have experienced some remarkable environmental changes in recent decades, such as the Antarctic ozone hole, the loss of large amounts of sea ice from the Arctic Ocean and major warming on the Antarctic Peninsula. The polar regions are also predicted to warm more than any other region on Earth over the next century if greenhouse gas concentrations continue to rise. Yet trying to separate natural climate variability from anthropogenic factors still presents many problems. This book presents a thorough review of how the polar climates have changed over the last million years and sets recent changes within a long term perspective. The approach taken is highly cross-disciplinary and the close links between the atmosphere, ocean and ice at high latitudes are stressed. The volume will be invaluable for researchers and advanced students in polar science, climatology, global change, meteorology, oceanography and glaciology.
Download or read book Assessment of Species Diversity in the Atlantic Maritime Ecozone written by Donald F. McAlpine and published by NRC Research Press. This book was released on 2010 with total page 802 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Atlas of Submarine Glacial Landforms written by J.A. Dowdeswell and published by Geological Society of London. This book was released on 2016-12-16 with total page 631 pages. Available in PDF, EPUB and Kindle. Book excerpt: New geophysical techniques (multibeam echo sounding and 3D seismics) have revolutionized high-resolution imaging of the modern seafloor and palaeo-shelf surfaces in Arctic and Antarctic waters, generating vast quantities of data and novel insights into sedimentary architecture and past environmental conditions. The Atlas of Submarine Glacial Landforms is a comprehensive and timely summary of the current state of knowledge of these high-latitude glacier-influenced systems. The Atlas presents over 180 contributions describing, illustrating and discussing the full variability of landforms found on the high-latitude glacier-influenced seafloor, from fjords and continental shelves to the continental slope, rise and deep-sea basins beyond. The distribution and geometry of these submarine landforms provide key information on past ice-sheet extent and the direction and nature of ice flow and dynamics. The papers discuss individual seafloor landforms, landform assemblages and entire landsystems from relatively mild to extreme glacimarine climatic settings and on timescales from the modern margins of tidewater glaciers, through Quaternary examples to ancient glaciations in the Late Ordovician.
Download or read book Geological Survey of Canada Current Research Online no 2002 E16 written by and published by Natural Resources Canada. This book was released on with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geological Survey of Canada Current Research Online no 2000 D7 written by David J. Piper and published by Natural Resources Canada. This book was released on 2000 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper interprets the style of Quaternary sedimentation on the central Scotian Slope near LaHave and Emerald banks from a study of seismic reflection profiles. Three different styles of sediment accumulation and five acoustic facies are described, and implications for slope sediment stability are briefly discussed.
Download or read book Wisconsinan Glaciation of the Atlantic Continental Shelf of Southeast Canada written by L. H. King and published by . This book was released on 1947 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reconstructing Human Landscape Interactions written by Pam Dickinson and published by Cambridge Scholars Publishing. This book was released on 2009-03-26 with total page 291 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reconstructing Human-Landscape Interactions demonstrates the high quality of work presented at the first Developing International Geoarchaeology conference (DIG 2005), held in Saint John, New Brunswick, Canada, and exemplifies the over-riding theme of this discipline. People have always used the landscape in many ways: as a place to live, as a place to grow crops, as a source of natural resources. Those actions leave their traces. The characteristics of the landscape constrain which activities are possible, just as social and cultural habits condition people’s connection with the environment. Geoarchaeology is about finding the traces of these interactions, and using them to reconstruct how people in the past behaved in their environmental context. The material covered in the proceedings ranges from broad themes of climate change and landscape use, to more specific subjects such as river avulsion and the use of tidal ponds. The papers move us from the land to the coastal margin and back onto land to examine particular techniques. The final paper leads us beyond archaeology and points out that geoarchaeological data must contribute to the debate about the sustainability of present-day land-use practices: a fitting challenge to take us into the future.
Download or read book Continental Shelves of the World written by F.L. Chiocci and published by Geological Society of London. This book was released on 2014-11-06 with total page 343 pages. Available in PDF, EPUB and Kindle. Book excerpt: The world's continental shelves are the sites of vast resources of food, energy and minerals, the exploitation of which is continuously increasing. Fluctuating global sea levels throughout the Quaternary period produced multiple transgressive and regressive cycles that profoundly affected and shaped these shelves. The complex interactions among climate, sea level, tectonics, oceanography and sediment input have formed distinctive sediment packages on each shelf and provide a guide to the interpretation of older shelf sequences throughout the geological record. This Memoir compiles studies on 23 selected shelves from all the continents, focusing on their evolution and examining the patterns of sedimentation during the past approximately 125 000 years. In addition to providing basic background information for each area, the chapters consider specific aspects of continental shelf research, from seismic stratigraphy to geomorphology, from palaeoceanography to palaeo sea-level reconstruction and from palaeontology to geochemistry.
Download or read book Late Quaternary Palaeoceanography of the North Atlantic Margins written by John T. Andrews and published by Geological Society of London. This book was released on 1996 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: The focus of this book is on oceanic climate change during the last deglaciation period and the high temporal resolution that can be obtained from sediment records at continental margin sites. The book draws together papers from the north-eastern North American continental margin with those from the north-west European Arctic and the Arctic and North Atlantic Oceans.
