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Author : Thomas R. Dwyer
Publisher :
ISBN 13 :
Total Pages : 152 pages
Book Rating : 4.:/5 (781 download)
Download or read book Late Pleistocene-Holocene Lake Level Fluctuations at Owasco Lake, NY written by Thomas R. Dwyer and published by . This book was released on 1995 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Alayne Street-Perrott
Publisher :
ISBN 13 :
Total Pages : 232 pages
Book Rating : 4.:/5 (4 download)
Download or read book Global Lake-level Variations from 18,000 to 0 Years Ago written by Alayne Street-Perrott and published by . This book was released on 1989 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Cary Mock
Publisher : Newnes
ISBN 13 : 0444536426
Total Pages : 3883 pages
Book Rating : 4.4/5 (445 download)
Download or read book Encyclopedia of Quaternary Science written by Cary Mock and published by Newnes. This book was released on 2013-03-25 with total page 3883 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second revised edition of the Encyclopedia of Quaternary Science, Four Volume Set, provides both students and professionals with an up-to-date reference work on this important and highly varied area of research. There are lots of new articles, and many of the articles that appeared in the first edition have been updated to reflect advances in knowledge since 2006, when the original articles were written. The second edition will contain about 375 articles, written by leading experts around the world. This major reference work is richly illustrated with more than 3,000 illustrations, most of them in colour. Research in the Quaternary sciences has advanced greatly in the last 10 years, especially since topics like global climate change, geologic hazards and soil erosion were put high on the political agenda. This second edition builds upon its award-winning predecessor to provide the reader assured quality along with essential updated coverage Contains 357 broad-ranging articles (4310 pages) written at a level that allows undergraduate students to understand the material, while providing active researchers with a ready reference resource for information in the field. Facilitates teaching and learning The first edition was regarded by many as the most significant single overview of Quaternary science ever, yet Editor-in-Chief, Scott Elias, has managed to surpass that in this second edition by securing even more expert reviews whilst retaining his renowned editorial consistency that enables readers to navigates seamlessly from one unfamiliar topic to the next
Author : Timothy Deryck Jones
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (74 download)
Download or read book A Reconstruction of Late Pleistocene and Holocene Lake Level Changes at Ioannini, Northwest Greece written by Timothy Deryck Jones and published by . This book was released on 2010 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Vera Markgraf
Publisher : Elsevier
ISBN 13 : 0080525660
Total Pages : 484 pages
Book Rating : 4.0/5 (85 download)
Download or read book Interhemispheric Climate Linkages written by Vera Markgraf and published by Elsevier. This book was released on 2001-01-25 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a novel approach in the field of global change by presenting a comprehensive analysis of interhemispheric linkages of climate, present and past, and their effects on human societies. The ultimate goal of this interhemispheric integration is to improve our understanding of causes and mechanisms of climate change to enhance our capability in predicting future changes. Given the societal interest in global change issues this book offers a new approach for the integration of global information. It will provide a reference for professional scientists, researchers and graduate students in the fields of climatology, and the earth and environmental sciences. - Chapters analyse instrumental atmospheric and oceanic data to address such phenomena as El Nino/Southern Oscillation variability and other climate anomalies such as the Pacific and North Atlantic Oscillation and polar air outbreaks - A new systematic methodology is presented that allows objective and verifiable reconstruction of climate fields from sparse data - Especially valuable in the context of climate proxy data
Author :
Publisher :
ISBN 13 :
Total Pages : 780 pages
Book Rating : 4.E/5 ( download)
Download or read book Northeastern Geology and Environmental Sciences written by and published by . This book was released on 2005 with total page 780 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Tessa Ray-Cozzens
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.4/5 (387 download)
Download or read book Stratigraphic Evidence of Water-level Changes in Small Lakes in the Souther Great Lakes Region During the Late-Quaternary written by Tessa Ray-Cozzens and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Paleoclimate records across mid-latitude North America indicate a continuously changing hydroclimate during the Holocene. However, spatial differences in the hydroclimate history between regions like the mid-continent coastal and northeast United States raises questions about the timing and directions of change in the Southern Great Lakes region. Here, I present ground penetrating radar (GPR) and sediment core analyses from two small lakes in southern Michigan and central Pennsylvania to constrain the extent of late-Pleistocene and Holocene droughts. Sedimentological analyses at Lake Lavine, Michigan, indicate lower than modern water levels before the late-Holocene, particularly during the late-Pleistocene and five particularly dry portions of the Holocene from 9.9–9.8, 8.1–6.6, 6.1–5.4, 5.1–4.9, and 4.7–4.6 ka. Similar analyses at Sunfish Pond, Pennsylvania, also indicate that the lake was higher during the late-Holocene than earlier periods with a severe dry phase from 5.5–4.3 ka nearly desiccating the mountain-top lake as part of an event that extended from Wisconsin to Massachusetts. Two earlier high-water phases at Sunfish Pond possibly coincided with Heinrich Stadial 1 (16.1 ka) and the Younger Dryas (12.4–11.6 ka). The evidence of hydroclimate change highlights the potential influences of the Laurentide Ice Sheet and North Atlantic variability on moisture availability across large portions of eastern North America that produced both spatially-extensive, long-term trends and regionally-varying multi-century fluctuations.
Author : New York State Geological Association. Meeting
Publisher :
ISBN 13 :
Total Pages : 280 pages
Book Rating : 4.F/5 ( download)
Download or read book Guidebook written by New York State Geological Association. Meeting and published by . This book was released on with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contains papers presented for the -30th annual meeting of the association.
Author : A.R. Gillespie
Publisher : Elsevier
ISBN 13 : 0080474098
Total Pages : 595 pages
Book Rating : 4.0/5 (84 download)
Download or read book The Quaternary Period in the United States written by A.R. Gillespie and published by Elsevier. This book was released on 2003-12-17 with total page 595 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reviews advances in understanding of the past ca. two million years of Earth history - the Quaternary Period - in the United States. It begins with sections on ice and water - as glaciers, permafrost, oceans, rivers, lakes, and aquifers. Six chapters are devoted to the high-latitude Pleistocene ice sheets, to mountain glaciations of the western United States, and to permafrost studies. Other chapters discuss ice-age lakes, caves, sea-level fluctuations, and riverine landscapes. With a chapter on landscape evolution models, the book turns to essays on geologic processes. Two chapters discuss soils and their responses to climate, and wind-blown sediments. Two more describe volcanoes and earthquakes, and the use of Quaternary geology to understand the hazards they pose. The next part of the book is on plants and animals. Five chapters consider the Quaternary history of vegetation in the United States. Other chapters treat forcing functions and vegetation response at different spatial and temporal scales, the role of fire as a catalyst of vegetation change during rapid climate shifts, and the use of tree rings in inferring age and past hydroclimatic conditions. Three chapters address vertebrate paleontology and the extinctions of large mammals at the end of the last glaciation, beetle assemblages and the inferences they permit about past conditions, and the peopling of North America. A final chapter addresses the numerical modeling of Quaternary climates, and the role paleoclimatic studies and climatic modeling has in predicting future response of the Earth's climate system to the changes we have wrought.
Author : Julie A. Wolin
Publisher :
ISBN 13 :
Total Pages : 350 pages
Book Rating : 4.3/5 (91 download)
Download or read book Paleoclimatic Implications of Late Holocene Lake-level Fluctuations in Lower Herring Lake, Michigan written by Julie A. Wolin and published by . This book was released on 1992 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : New York State Geological Association
Publisher :
ISBN 13 :
Total Pages : 336 pages
Book Rating : 4.3/5 (91 download)
Download or read book Field Trip Guidebook written by New York State Geological Association and published by . This book was released on 1997 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Richard S. Laub
Publisher :
ISBN 13 :
Total Pages : 31 pages
Book Rating : 4.:/5 (177 download)
Download or read book Late Pleistocene and Early Holocene Paleoecology and Archeology of the Eastern Great Lakes Region written by Richard S. Laub and published by . This book was released on 1986 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Corinne M. Lally
Publisher :
ISBN 13 :
Total Pages : 216 pages
Book Rating : 4.:/5 (973 download)
Download or read book Late Pleistocene to Holocene Climate Variability Recorded in Lake Sediment of Silver Lake, Summit County, Ohio written by Corinne M. Lally and published by . This book was released on 2016 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: To provide greater spatial coverage of late Pleistocene to Holocene environmental change in the Midwestern United States, a 1350 cm long sediment core was collected from Silver Lake in northeast Ohio. Age control was provided by new radiocarbon dates, correlation to a dated lake record from western Ohio, and a prior study of Silver Lake. Lithologic descriptions and sedimentary profiles of dry bulk density (DBD), organic matter (OM), carbonate, C/N, grain size, magnetic properties, and concentrations of terrigenous derived elements (Al, Ti, and K) allow the core to be divided into six periods. The climate interpretations are compared to published regional and hemispheric climate records. The first period is Deglaciation, which spans from 17,560 -- 13,600 cal year BP (1353 - 1188 centimeters below lake floor (cmblf)). Silty sediment with low OM (average 6 %) and high DBD (average 0.832 g/cm3) are interpreted to reflect cold conditions soon after deglaciation. The Latest Pleistocene Period is the second period and spans from 13,600 -- 12,200 cal yr BP (1188 -- 1103 cmblf). Brown to light brown mud with silty layers, a slight increase in % OM (average 9 %) and decrease in DBD (average 0.694 g/cm3) characterize this interval. The Latest Pleistocene Period may have been a time of increased primary productivity in Silver Lake. The third period is the Younger Dryas, which spans from 12,200 -- 11,500 cal yr BP (1103 -- 1070 cmblf). Gray-brown to light-brown silty mud having low % OM (average 6%), high DBD (average 0.703 g/cm3), high concentrations of magnetic minerals, and elevated concentrations of Al, Ti, and K characterize this period. These sediment characteristics are interpreted as cold and dry conditions, increased terrigenous input, and/or decreased primary productivity. The fourth period is the Early Holocene which spans from 11,500 -- 7,450 cal yr BP (1070 -- 824 cmblf), and is divided into two subperiods. During the first subperiod, from 11,500 -- 10,600 cal yr BP (1070 -- 1016 cmblf), there was an increase in % OM (average 28 %) and decrease in DBD (average 0.311 g/cm3) and concentrations of Al, Ti, and K. The first subperiod of the Early Holocene is interpreted to be a period of brief warming. The second subperiod of the Early Holocene spans from 10,600 -- 7,450 cal yr BP (1016-824 cmblf), and is characterized by highly variable % OM and DBD and increased Al, Ti, and K. This subperiod is interpreted as a period of increased aridity. The fifth period is the Mid to Late Holocene which spans from 7,450 -- 200 cal yr BP (824 -- 128 cmblf). Alternating brown and dark brown mud having no visible silty layers, high % OM (average 51%), low DBD (average 0.116 g/cm3), and decreased Al, Ti, and K and magnetic concentration characterize this period. These sediment characteristics are interpreted to reflect warm and moist conditions when primary productivity increased and/or terrigenous influx decreased. However, within the Mid to Late Holocene Period there are six pronounced intervals of decreased % OM and increased Al, Ti, and K suggestive of millennial-scale increases in terrigenous input and/or decreases in lake productivity. These six intervals may be related in part to rapid global climate changes during the Holocene, when temperatures and moisture balance fluctuated. The sixth period is the Anthropogenic Period, which spans from 200 cal yr BP to the present (128 -- 0 cmblf). The Anthropogenic Period is characterized by a pronounced decrease in % OM (average 19%), increase in DBD (average 0.273 g/cm3), and an increase in the mass accumulation rate (MAR) resulting from Euro-American land clearance enhancing watershed erosion.
Author : Constance K. Throckmorton
Publisher :
ISBN 13 :
Total Pages : 164 pages
Book Rating : 4.:/5 (293 download)
Download or read book Late Pleistocene and Holocene Environmental Changes in Fish Lake Valley, Nevada-California written by Constance K. Throckmorton and published by . This book was released on 1993 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : April Lynn Kelly
Publisher :
ISBN 13 :
Total Pages : 160 pages
Book Rating : 4.:/5 (994 download)
Download or read book Determining Late Pleistocene to Early Holocene Deglaciation of the Baltic Ice Lake Through Sedimentological and Geochemical Analysis of IODP Site M0064 written by April Lynn Kelly and published by . This book was released on 2017 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Michael E. Badding
Publisher :
ISBN 13 :
Total Pages : 112 pages
Book Rating : 4.:/5 (823 download)
Download or read book Reconstructing Late Pleistocene Deglaciation and Holocene Glacial Advance Using Lacustrine Sediments and 10Be Exposure Dating, Brooks Range, Arctic Alaska℗ written by Michael E. Badding and published by . This book was released on 2012 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Arctic is among the most sensitive locations to climate change, where feedback mechanisms involving the cryosphere result in climate amplification. Because of their sensitivity to summer temperature and winter precipitation, glaciers can be used as proxies for climate change and reconstructions of past glacier fluctuations provide details about paleoclimate. Here, a chronology of late Pleistocene deglaciation and Neoglacial growth is constructed for two valleys in the north-central Brooks Range, Arctic Alaska. Cosmogenic 10Be exposure dating was used on ice-sculpted valley-bottom bedrock outcrops and boulders from Holocene moraine crests. Both valleys show evidence of retreat from the range front ~16-15 ka, and retreat into individual cirques by ~14 ka. There is no evidence for a standstill or re-advance during Late Glacial (14-11 ka) time. Neoglaciation was underway during the middle Holocene, constrained by a moraine dated to 4. 6±0. 5 ka.^Using this moraine age, and another moraine dated at 2. 7±0. 2 ka, this project confirms the accuracy of the previously established lichen growth curve to estimate moraine ages. This project also confirms that glaciers during early Neoglaciation had equal or larger extents than during the Little Ice Age (1200-1900 AD). Sediments collected from a proglacial lake downvalley of modern cirque glaciers reveal episodic sediment deposition from which it is difficult to isolate a signal of glacier advance. Comparing the lake sediment data to the moraine chronology suggests that Upper Kurupa Lake, based on the measured proxies, does not record glacial advances. Several conditions within the lake's catchment likely obscures any glacial signal. Further, more detailed measurements on the lake sediment might reveal additional clues on glacier activity.^Despite the apparent lack of recording changes in glacial length, sediment characteristics suggest a period of stable deposition since 1300 AD, possibly attributed to cooling during the Little Ice Age.
Author : Karl Esser
Publisher : Springer Science & Business Media
ISBN 13 : 3540270434
Total Pages : 461 pages
Book Rating : 4.5/5 (42 download)
Download or read book Progress in Botany 66 written by Karl Esser and published by Springer Science & Business Media. This book was released on 2005-12-17 with total page 461 pages. Available in PDF, EPUB and Kindle. Book excerpt: With one volume each year, this series keeps scientists and advanced students informed of the latest developments and results in all areas of the plant sciences. The present volume includes reviews on genetics, cell biology, physiology, comparative morphology, systematics, ecology, and vegetation science.
