Landscape Evolution: Relief, Weathering, and Erosion
7A Landscape and Relief Evolution
Relief is the aspect of the land surface shaped by biotic factors. Relief maps, or topográficos, represent this aspect. Classification uses descriptive and interpretive criteria.
Descriptive Classification
Relief forms are classified by their appearance.
Interpretive Classification
Based on the processes leading to relief forms.
Weathering and Erosion
Weathering: The breakdown of rocks due to environmental agents, fracturing and changing their minerals.
Erosion: The evacuation
Read MoreBuilding Construction: From Foundations to Demolition
Pillars and Chains
Chains, also known as Q beams, are structural elements that resist loads. They can be made of wood, steel, concrete, HA, or a combination of these materials. Chains behave similarly to beams in bending.
Pillars
Pillars are structural elements that transmit loads to the supporting structures. They can be made of wood, steel, concrete, or HA.
Roof Structure
A roof structure is a combination of structural elements forming a lattice. These elements primarily experience axial loads.
The
Read MoreChemical Contaminants: Classification and Impact
Classification of Chemical Contaminants by Presentation
Aerosol
An aerosol is a dispersion of solid or liquid particles smaller than 100 μm in a gaseous medium. Aerosols exhibit a range of physical states:
- Powder (Dust): Airborne solid particles from physical disintegration processes, ranging from 0.1 to 25 μm in size.
- Mist: Airborne liquid droplets generated by condensation from a gaseous state or by liquid spray disintegration, ranging from 0.01 to 10 μm.
- Fog: Visible airborne liquid droplets caused
Soil Composition, Horizons, and Types
Soil Factors
The bedrock is the mineral substrate from which the soil is formed, affecting its color, texture, structure, permeability, and acidity.
The climate is the most influential factor in pedogenesis. Rainfall supplies water for biological activity and chemical leaching or dissolution, dragging items from the topsoil. Soil can be zonal (closely linked to climate) or azonal (related to factors other than climate).
The topography also influences soil composition: plain areas accumulate coarse
Read MoreClimate of Spain: Factors, Elements, and Types
Climate Factors in Spain
Spain’s diverse weather and climate result from geographical and thermodynamic factors.
Geographical Factors
- Latitude: Spain’s location in the Northern Hemisphere’s temperate zone creates distinct seasons (summer, winter, spring, autumn).
- Situation: The Iberian Peninsula’s position makes it a crossroads for diverse air masses.
- Sea Influence: Limited sea influence due to the peninsula’s width, low coasts, and mountainous terrain.
- Relief: Topography influences climate through altitude,
Mineral Formation Processes
Mineral Formation
Crystallization Processes
Crystal Habit: Describes the macroscopic appearance of minerals. The habit is influenced by external factors, such as environmental conditions during formation.
Elementary Cell: Characterized by a parallelepiped defined by the positions of atoms, ions, or molecules in space.
Node: The position of particles within the unit cell.
Formation Methods
- Solidification: By cooling molten material, as with volcanic lava.
- Sublimation: From the rapid cooling of a gas, such