التفاصيل البيبلوغرافية
| العنوان: |
Estudio de secuencias de paleosuelos en Mallorca |
| المؤلفون: |
Forss Sánchez, Antonio Leonardo |
| المساهمون: |
Vadell Adrover, Jaume, Mus Amézquita, Mauricio |
| بيانات النشر: |
Universitat de les Illes Balears |
| سنة النشر: |
2023 |
| المجموعة: |
Universitat de les Illes Balears: DSpace |
| مصطلحات موضوعية: |
Sòls Vermells Mediterranis, Terra Rossa, Sòls policíclics, Sòls acumulatius, Carbonats de calci, Il·luviació d'argila, Rubefacció, Suelos Rojos Mediterráneos, Suelos policíclicos, Suelos acumulativos, Carbonatos de calcio, Iluviación de arcilla, Rubefacción, Red Mediterranean Soils, Polycyclic soils, Cumulative soils, Calcium carbonates, Clay illuviation, Rubefication, 57 - Biologia, Biologia |
| الوصف: |
[eng] Five paleosols sequences in Majorca inland were studied. On the 70 horizons that make up these 5 profiles, a field study was carried out to describe morphological characteristics of the horizons, a thin sections micromorphological study, a fine earth physical-chemical characterization, the content of crystalline and amorphous iron forms, the mineralogy of the fine earth by means of X-ray diffraction, the mineralogy of the clays (oriented aggregates) by the same technique and the elemental content of macro and microelements from an aqua regia digestion. The paleosols studied present different degrees of evolution within the Mediterranean Red Soils framework. In all profiles studied, deepest horizons constitute typical forms, with a high degree of evolution. Characteristic features of these fossil horizons are: complete decarbonation, illuviation of clays high reddening while maintaining a high base saturation. Throughout the profiles, horizons with different evolution degrees were found, depending on the environmental conditions to which they have been exposed. In all the cases, they are cumulative paleosols that reach a significant thickness, between 4.5 and 14.15 m. Throughout these depths and in all the horizons studied, a great similarity in the mineral composition can be seen, with the carbonate content being the component that presents the greatest variability, from decarbonate horizons to others in which they are the major component. Phyllosilicates content of fine earth is high and mineral composition of clays are dominated by illite and interestrafied forms of illite with smectite. Kaolinite and chlorite are also present in most horizons, but in smaller amounts. Ca, Al, K, Na, Fe, Mn, Cr, Ni, Zn or Ti contents have very high Pearson correlation coefficients. This circumstance, together with the similarity of the clay minerals in all the horizons, are indicators of a common origin of constituents in these soils. Through the micromorphological study, overlapping features can be observed, such as ... |
| نوع الوثيقة: |
doctoral or postdoctoral thesis |
| وصف الملف: |
application/pdf |
| اللغة: |
Spanish; Castilian |
| Relation: |
http://hdl.handle.net/11201/162323 |
| الاتاحة: |
http://hdl.handle.net/11201/162323 |
| Rights: |
all rights reserved ; info:eu-repo/semantics/openAccess |
| رقم الانضمام: |
edsbas.63D8DC0E |
| قاعدة البيانات: |
BASE |