The Euclidian distances between the basins in a kdimensional space defined by k variables were used as a measure of similarity. According to this procedure, based on both source and sediment properties, the subdivision of Calabria into Aspromonte, Zomaro and Serre Provinces has to be modified. The Aspromonte basins have to be regrouped into two subprovinces, one whose rivers reach the main divide, the large Aspromonte Province, and one whose short rivers do not, the small Aspromonte Province. Novito  and Torbido  prove to be special cases which fit neither the Zomaro Province nor the Serre Province. A t-test of the distances between different provinces and with in provinces yields the following rank of source area properties: geology and altitude separate the provinces with more than 99% significance;gradient and precipitation yield between 95 and 99% significance, and erosion rates finally separate the provinces with only less than 95% significance.The same procedure ranks the sediment properties: heavy minerals, the mineralogy of the clay fraction and gravel petrography with more than 99% significance, silt minerals and geochemistry between 95 and 99% significance and, the least, grain sizes and light minerals with less than 95% significance.It is the first time a quantitative rank and evaluation of the commonly used provenance signals has been established.
Weitere Kapitel dieses Buchs durch Wischen aufrufen
- Comparison of Source and Sediment: a Multivariate Approach
Professor Dr. Hillert Ibbeken
Dr. Ruprecht Schleyer
- Springer Berlin Heidelberg
- Chapter 17