Source and Sediment: A Case Study of Provenance and Mass Balance at an Active Plate Margin (Calabria, Southern Italy)

ISBN-13: 9783642761676 / Angielski / Miękka / 2011 / 286 str.

Hillert Ibbeken;Ruprecht Schleyer;R. Valloni

Opis

Deciphering provenance - this is the study of how far geology, geomorphology and climate of a source, a mountainous area, may be reconstructable from its erosional products released to the sea; from gravel and sand, from silt, sand, clay which recombine to form a new cycle of rocks. The purpose of this book is to give a quantitative picture of both source and sediment and the masses involved in the flux of material; based on a modern case study in Calabria, southern Italy, a mountain range which is part of an active plate margin. High erosion rates in the past (200mm/ka), and dramatic ones at present (1500mm/ka), make the area a powerful source of sediment comparable to orogenic conditions of the geological past. The book presents the first systematic, quantitative and data-bank supported study - here a larger source with small rivers and their sedimentary products - of the complex topic of provenance of terrigenous sediments and related mass balances at an active plate margin. It may serve as an orientation for corresponding research in other plate tectonic realms.

Spis treści

I The Source.- 1 Position and Geological Framework.- 2 Basins and Channel Network.- 3 Altitude and Slopes.- 4 Climate and Vegetation.- 5 Rock Units and Their Regional Distribution.- 6 Erosion and Predicted Sediment Composition.- 7 Water Budget and Dissolved Load.- 8 Composition of Rocks and Soils.- II From the Source to the River-Mouth Sediment.- 9 Development of the Chemical Composition of Sand.- 10 The Development of the Grain-Size Distributions.- 11 Development of Gravel Sphericity.- 12 Special Topics of Sediment Development of Lower River Course and Beach.- III River-Mouth Sediment and Provenance.- 13 River-Mouth Gravel.- 14 River-Mouth Sand, Silt and Clay.- IV Processes, Budget and Statistical Comparison.- 15 Mass Balances on Land.- 16 Mass Balances in the Marine Realm.- 17 Comparison of Source and Sediment: a Multivariate Approach.- 18 Summary and Conclusion.- Appendix A Data Management.- Appendix B Graphic Representation of the Data Base.- References.