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Effects of Past Global Change on Life.
| Clasificación: | Libro Electrónico |
|---|---|
| Autor principal: | |
| Formato: | Electrónico eBook |
| Idioma: | Inglés |
| Publicado: |
Washington :
National Academies Press,
1900.
|
| Temas: | |
| Acceso en línea: | Texto completo |
Tabla de Contenidos:
- ""Effects of Past Global Change on Life""; ""Copyright""; ""Studies in Geophysics""; ""Preface""; ""Contents""; ""Effects of Past Global Change on Life""; ""Overview and Recommendations""; ""OVERVIEW""; ""INTRODUCTION""; ""METHODS""; ""SHIFTS BETWEEN ENVIRONMENTAL STATES""; ""Periodic Cycles""; ""Nonperiodic Cycles""; ""The Eocene-Oligocene Transition""; ""The Younger Dryas Cooling""; ""The Terminal Ordovician Transition""; ""Unidirectional Shifts""; ""RATES OF TRANSITION""; ""Sudden Shifts and Gradual Trends""; ""The Nature of Thresholds""; ""PATTERNS OF BIOTIC RESPONSE""; ""Migration""
- ""Extinction""""Evolutionary Turnover""; ""Delayed Recovery""; ""RECOMMENDATIONS""; ""REFERENCES""; ""Background""; ""1 Oxygen and Proterozoic Evolution: An Update ""; ""ABSTRACT""; ""INTRODUCTION""; ""THE EARLY PROTEROZOIC EON""; ""Geochemical Evidence for Atmospheric Change""; ""Paleontological Evidence for Evolutionary Innovation""; ""Biological Reasons for Linkage""; ""Summary of the Paleoproterozoic Earth""; ""THE END OF THE PROTEROZOIC EON""; ""Paleontological Data""; ""Biological Reasons for Linkage to Environmental Change""; ""Geochemical Data""
- ""Summary of the Latest Proterozoic Record""""CONCLUSIONS""; ""ACKNOWLEDGMENTS""; ""REFERENCES""; ""2 Impact of Late Ordovician Glaciation-Deglaciation on Marine Life ""; ""ABSTRACT""; ""INTRODUCTION""; ""DATA SUMMARIES""; ""THE TIME FRAME""; ""THE PALEOGEOGRAPHIC FRAMEWORK""; ""GEOCHEMICAL EVIDENCE OF DEEP OCEAN VENTILATION""; ""PATTERNS IN EXTINCTION AND RERADIATION""; ""Graptolites""; ""Shelly Faunas""; ""ENVIRONMENTAL-ORGANISMAL CHANGES: A SUMMARY""; ""REFERENCES""
- ""3 Global Change Leading to Biodiversity Crisis in a Greenhouse World: The Cenomanian-Turonian (Cretaceous) Mass Extinction""""ABSTRACT""; ""INTRODUCTION""; ""HIGH-RESOLUTION APPROACH TO DOCUMENTING ANCIENT ENVIRONMENTAL CHANGE""; ""THE CENOMANIAN-TURONIAN (C-T) MASS EXTINCTION�AN ANCIENT GLOBAL BIODIVERSITY CRISIS IN A CHAOTIC GREENHOUSE WORLD""; ""A CASE HISTORY: THE PUEBLO, COLORADO, C-T BOUNDARY SECTION""; ""ESTABLISHING A CHRONOLOGY FOR ENVIRONMENTAL DECLINE AND MASS EXTINCTION ACROSS THE C-T BOUNDARY""; ""A TIMETABLE FOR CENOMANIAN-TURONIAN MASS EXTINCTION""
- ""INTERPRETATIONS AND CONCLUSIONS""""REFERENCES""; ""Appendix""; ""RATES, PATTERNS, AND TIMING OF THE C-T MASS EXTINCTION AND ASSOCIATED ENVIRONMENTAL PERTURBATIONS (SEE FIGURE 3.6)""; ""Late Cenomanian Background Conditions""; ""Late Cenomanian Mass Extinction""; ""Highest Cenomanian Events""; ""Basal Turonian Events""; ""Final Phases Of The C-T Mass Extinction""; ""Early Recovery Interval""; ""End Of Sampling Interval""; ""4 Cretaceous-Tertiary (K/T) Mass Extinction: Effect of Global Change on Calcareous Microplankton ""; ""ABSTRACT""; ""INTRODUCTION""