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| 008 | 240724s1994 xx o ||||0 eng d | ||
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_a9780309568630 _q(electronic bk.) |
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| 020 | _z9780309047456 | ||
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| 050 | 4 | _aQE571 -- .M37 1994eb | |
| 082 | 0 | _a551.3 | |
| 245 | 1 | 0 | _aMaterial Fluxes on the Surface of the Earth. |
| 250 | _a1st ed. | ||
| 264 | 1 |
_aWashington, D.C. : _bNational Academies Press, _c1994. |
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| 264 | 4 | _c©1994. | |
| 300 | _a1 online resource (184 pages) | ||
| 336 |
_atext _btxt _2rdacontent |
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| 337 |
_acomputer _bc _2rdamedia |
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| 338 |
_aonline resource _bcr _2rdacarrier |
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| 505 | 0 | _aSTUDIES IN GEOPHYSICS -- Copyright -- Studies in Geophysics -- Preface -- Contents -- Overview -- KNOWLEDGE OF THE PRESENT FLUX RATES OF GEOLOGIC MATERIALS -- RATES OF FLUX OF GEOLOGIC MATERIALS DURING THE MOST RECENT GLACIATION AND DEGLACIATION -- VARIABILITY OF SURFICIAL GEOFLUXES -- Temporal Variability -- Spatial Variability -- Rapid Change and Catastrophic Events -- CONCLUSIONS -- Processes in Shallow Water-Shelf Environments -- Distribution of Lithologies at the Surface -- Distribution of Sources and Sinks -- Rates -- Expanded Time Scales for Processes/Fluxes -- Anthropogenic Influence -- REFERENCES -- Background -- 1 Pleistocene-Holocene Fluxes Are Not the Earth's Norm -- ABSTRACT -- RECOGNITION, DEFINITION, AND LENGTH OF THE QUATERNARY AND HOLOCENE -- MASSES OF QUATERNARY AND HOLOCENE SEDIMENT -- PROCESS RATES -- LONG- AND SHORT-TERM APPARENT ACCUMULATION RATES OF QUATERNARY AND HOLOCENE SEDIMENT -- Deep-Sea Sediments -- Marginal Sea Sediments -- Continental Shelves -- Glacial Sediments on Land -- Nonglacial Continental Sediments -- DISCUSSION -- Sediment Cycling -- The Effect of Glacial-Interglacial Alternations -- Increased Tectonic Activity -- CONCLUSION -- ACKNOWLEDGMENTS -- REFERENCES -- 2 Surficial Weathering Fluxes and Their Geochemical Controls -- ABSTRACT -- INTRODUCTION -- GLOBAL AND ZONAL WATER FLOWS -- Surficial Flows and Storage in Lakes -- Residence Times of Zonal Water Discharge -- Residence Times on a Global Scale -- Summary of Water Flows and Residence Times -- WEATHERING FLUX -- A Conceptual Mode -- Weathering Flux Equations -- Mineral Dissolution Rates (R) -- HYDROGEN-ION AND TEMPERATURE DEPENDENCE OF DISSOLUTION RATES -- The pH and Natural Acidity -- Temperature Effects on Dissolution Rates -- WEATHERING AND DISSOLUTION -- NEUTRALIZATION OF ACIDITY BY WEATHERING RELEASES. | |
| 505 | 8 | _aBackground-Alkalinity [Alk], Acidity [Acy], CO2, and pH -- SUMMARIZING DISCUSSION -- ACKNOWLEDGMENTS -- REFERENCES -- 3 Global Chemical Weathering on Glacial Time Scales -- INTRODUCTION -- FACTORS THAT INFLUENCE GLOBAL CHEMICAL WEATHERING -- Climate -- Erosional Area -- Rock Types Exposed -- Glacier Weathering and Erosion Processes -- COUPLED CHANGES -- The Climate/Rock Type Connection -- Forest Coverage and Weathering -- Climate and Glacial Sediment Supply -- IMPLICATIONS FOR OCEANIC AND ATMOSPHERIC CHEMISTRY AND CLIMATE -- ACKNOWLEDGMENTS -- REFERENCES -- 4 Origin and Variable Composition of Present Day Riverborne Material -- ABSTRACT -- INTRODUCTION -- ENVIRONMENTAL FACTORS CONTROLLING CHEMISTRY OF WATER AND SUSPENDED MATTER -- DISTRIBUTION OF RIVER WATER QUALITY -- CONTROL AND DISTRIBUTION OF RIVERINE TRANSPORT RATES -- GLOBAL ORIGINS OF RIVERBORNE MATERIAL -- CONCLUSIONS -- ACKNOWLEDGMENTS -- REFERENCES -- 5 Geomorphic/Tectonic Control of Sediment Discharge to the Ocean: The Importance of Small Mountainous Rivers -- ABSTRACT -- INTRODUCTION -- RIVER DATA -- RESULTS -- DISCHARGE OF SEDIMENT BY WORLD RIVERS -- North America -- South America -- Europe -- USSR and Asia Minor -- Africa -- Asia and Oceania -- Australia -- IMPLICATIONS -- Factors Controlling Sediment Discharge -- What Is the Sediment Flux to the Sea? -- Active Versus Passive Margin Rivers -- ACKNOWLEDGMENTS -- REFERENCES -- 6 Glacial to Modern Changes in Global River Fluxes -- ABSTRACT -- INTRODUCTION -- FLUVIAL PALEOHYDROLOGICAL PRINCIPLES -- Regime Changes and Sediment Transport Mechanics -- SWD-PSI Analysis -- FLUVIAL CATACLYSMIC PROCESSES -- REGIONAL PATTERNS -- Europe and North America -- South America -- Africa, Australia, Southern Asia -- FUTURE WORK -- CONCLUSIONS -- ACKNOWLEDGMENTS -- REFERENCES. | |
| 505 | 8 | _a7 Sediment Fluxes Along High-Latitude Glaciated Continental Margins Northeast Canada and Eastern Greenland -- ABSTRACT -- INTRODUCTION -- OVERALL CONTROLS ON SEDIMENT FLUX -- Processes -- DEGLACIAL TO INTERGLACIAL FIORD/SHELF SEDIMENT FLUX -- East Baffin Island -- The East Greenland Margin -- CONCLUSIONS -- ACKNOWLEDGMENTS -- REFERENCES -- 8 Late Quaternary Flux of Eolian Dust to the Pelagic Ocean -- ABSTRACT -- INTRODUCTION -- THE GEOLOGIC RECORD OF DUST DEPOSITION -- A Note on Methodology -- Geographic Variation in Eolian Fluxes -- The Downcore Record of Quaternary Eolian Deposition -- DISCUSSION -- ACKNOWLEDGMENTS -- REFERENCES -- 9 Particle Fluxes in the Ocean and Implications for Sources and Preservation of Ocean Sediments -- ABSTRACT -- INTRODUCTION -- METHODS -- REFRACTORY ELEMENT RAIN AND BURIAL FLUXES -- BIOGENIC RAIN AND BURIAL FLUXES -- ORGANIC CARBON PRESERVATION -- CALCITE PRESERVATION -- OPAL PRESERVATION -- THE RELATIONSHIP BETWEEN ALUMINOSILICATE AND BIOGENIC RAIN RATES -- INFLUENCE OF THE CONTINENTAL MARGINS -- EOLIAN SOURCES -- CONCLUSIONS -- REFERENCES -- 10 Seafloor Diagenetic Fluxes -- INTRODUCTION -- THE MEASUREMENT OF BENTHIC FLUXES -- EARLY DIAGENESIS AND MODERN OCEANIC CYCLES -- Na, K, and Mg -- C, Ca, and Si -- Spatial Variability in Early Diagenetic Reaction Rates -- The Oxidants for Organic Matter Degradation: O2, N, and S -- EARLY DIAGENETIC FLUXES AND THE SEDIMENTARY RECORD -- Introduction -- Variations in Burial Efficiency in Marine Sediments: CaCO3, SiO2, and Organic Carbon -- CaCO3 -- SiO2 -- Organic Carbon -- Discussion -- A Model Including Transport and Reaction Effects: The Case of Organic Carbon -- CONCLUSIONS -- ACKNOWLEDGMENTS -- REFERENCES -- Index. | |
| 588 | _aDescription based on publisher supplied metadata and other sources. | ||
| 590 | _aElectronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, 2024. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries. | ||
| 650 | 0 | _aSedimentation and deposition. | |
| 650 | 0 | _aWeathering. | |
| 655 | 4 | _aElectronic books. | |
| 776 | 0 | 8 |
_iPrint version: _a _tMaterial Fluxes on the Surface of the Earth _dWashington, D.C. : National Academies Press,c1994 _z9780309047456 |
| 797 | 2 | _aProQuest (Firm) | |
| 856 | 4 | 0 |
_uhttps://ebookcentral.proquest.com/lib/orpp/detail.action?docID=3377421 _zClick to View |
| 999 |
_c84899 _d84899 |
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