نتایج جستجو برای: pedogenesis
تعداد نتایج: 221 فیلتر نتایج به سال:
Temporal changes in soil development were assessed on fluvial terraces of the Little River upper Coastal Plain North Carolina. We examined five profiles from each six surfaces spanning about 100,000 years. Soil-age relationships evaluated with inter-surface clay mineral comparisons and regression chemical properties versus previously reported optically-stimulated luminescence ages using most de...
This work studies a set of soil indicators (physical, physico-chemical and biological), evaluated under field laboratory conditions, in different stages spontaneous vegetation colonization abandoned metal(loid) mine tailings from Mediterranean semiarid areas. The results provide evidence about the interest by native for phytomanagement terms providing ecosystem functions. Bare soils (B), small ...
The exceptional development of lateritic profiles make the Amazon one best places to conduct a refined study on effects long-term tropical climate Earth's surface rocks. Concentrations Nd and Sr isotopes, as well rare earth elements (REE), Sr, other trace were determined in six order shed new light into element behavior processes controlling geochemistry transfer these among different compartme...
The continuing development of analytical methods for investigating sedimentary records calls iterative re-examination existing data sets obtained on loess-palaeosol sequences (LPS) as archives palaeoenvironmental change. Here, we re-investigate two LPS (Hecklingen, Zilly) in the northern Harz foreland, Germany, being interest due to their proximity Scandinavian Ice Sheet (SIS) and position betw...
The late Paleocene to earliest Eocene sedimentary record in the eastern Tremp-Graus Basin (southern Pyrenees, Spain) consists of a mud-prone fluvial succession informally known as ‘Upper Red Garumnian’, which is dominantly composed non-channelized deposits interspersed with channel bodies. records evidence variations water discharge at multiple temporal scales. One-hundred-and-eighty sand-prone...
In most cases authors are permitted to post their version of the article (e.g. in Word or Tex form) to their personal website or institutional repository. Authors requiring further information regarding Elsevier's archiving and manuscript policies are encouraged to visit: The temporal evolution of pedogenic Fe–smectite to Fe–kaolin via interstratified kaolin–smectite in a moist tropical soil ch...
Abstract. Saturated and near-saturated soil hydraulic conductivities Kh (mm h−1) determine the partitioning of precipitation into surface runoff infiltration are fundamental to soils' susceptibility preferential flow. Recent studies found indications that climate factors influence Kh, which is highly relevant in face change. In this study, we investigated relationships between pedoclimatic also...
This review is concerned with some key features observed within grouped samples of ancient ceramics that provide important evidence concerning the selection appropriate raw materials and evolution firing technologies employed in their production. It also demonstrates importance distinguishing accounting for mineralogical microstructural attributes identifying processes responsible these ceramic...
Mountains of Norway. Its Little Ice Age maximum occurred about 1750 when it deposited a well-defined end moraine. Since then it has retreated leaving a series of recessional moraines. All of these moraines have been dated lichenometrically by Matthews (see Matthews, 1992 for a comprehensive summary). We used this series of dated moraines to investigate the early stages of pedogenesis, the early...
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