Notes, summaries, assignments, exams, and exercises for Geology for Baccalaureate

Elevation: Nestled on robust foundations (which sometimes allow the construction of underground vaults or churches), the thick wall reinforced by buttresses sustains higher buildings. The central nave is taller than the side windows, venting its weight on them and sometimes on the "stands" in such high aisles, passing the half-barrel vaults of its burden onto these pillars, buttresses, and external walls (thus anticipating the Gothic flying buttresses). These stands, with a low value sometimes useful or intended to host pilgrims, open to the nave through three ornamental windows (clerestory).
The two walls flanking the nave received special treatment by the Roman architect. He avoided the mass rotundity of the first Romanesque era and opted...

What is Soil? An Essential Ecosystem

Much of the land surface is covered by a layer of loose material called soil, where plants are or may be rooted. It is a habitat for a variety of organisms. The soil is an ecosystem.

Soil Components

• Organic Matter: Formed by many organisms, traces of undecomposed organisms, and humus (partially decomposed organic matter).
• Inorganic Material: Fragments of rocks, minerals, air, and water that occupy the holes left by the solid materials.

Factors Influencing Soil

The characteristics of soils are influenced by several factors: climate, the original rock, the topography of the area, and the organisms that use it as a habitat. In mature soil, we find different soil horizons, also known as edaphic horizons. Each one...

Geological Processes and Paroxysmal Phases

Most geological processes occur gradually and are not dangerous. However, paroxysmal phases occur when the magnitude is higher than usual, releasing a large amount of energy and covering a large spatial extension.

External Geological Processes and Weathering

External geological processes occur on the superficial lithosphere. They depend on solar energy potential and become active agents on the terrain. Weathering is the process by which rocks are physically or chemically altered, such as through mechanical disintegration or variation in composition.

Internal Geological Processes and Plate Tectonics

Internal geological processes are driven by geothermal energy. The geothermal gradient is approximately 1°C...

Water and Water Resources

Irrigated agriculture consumes almost 80% of total water in Spain, as it improves the performance of agricultural farms. Energy production relies on hydroelectric power, while urban consumption accounts for 14% of the total. The evacuation of waste from agriculture, livestock, and urban and industrial areas has caused a substantial decline in water quality.

The Water Balance

The water balance relates existing water resources to their usage. In Spain, this balance is positive, yet the figure remains high. Several issues prevent the full utilization of these resources:

• Irregularity: Water availability from rivers is characterized by seasonal and interannual irregularity.
• Spatial Distribution: Resources are unevenly distributed.

Physics Concepts

Specific Heat (c.especifico): Amount of heat a substance must absorb.

Hydraulics and Pressure

• Hydraulic Press: Related to Pascal's Principle.
• Pascal's Principle (p.pascal): Pressure exerted on an enclosed liquid.
• Absolute Pressure: Determined by adding gauge and atmospheric pressures (2 components).
• Archimedes' Principle (p.arkimides): Applies to a body immersed in fluid.

Properties of Matter and States

• Cohesion (ke cohesion): Force that holds together the molecules of one substance.
• Hydrostatics (hidrostatica): Studies liquids at rest.
• Gas: Energy greater than kinetic potential energy.
• Liquid Hydrostatics (p. LIKIDO hidrostatika): Introduces all substances and the container walls that contain them.
• Fusion: Transition from solid to liquid.

Mineral Resources

Mineral resources are natural concentrations of any element or compound in the Earth's crust that can potentially be extracted and processed.

Metal Ores

• Iron Ore: The fourth most abundant in Earth's crust. The minerals are oxides, therefore subject to a process of oxidation.
• Copper Ore: Less abundant than iron, obtained mostly from oxides.
• Aluminum Ore: The third most abundant element in the Earth. The refining process begins with the leaching of the metal by grinding it in caustic soda to achieve the decanting of compounds without aluminum.

Electrolysis

Electrolysis is an electrochemical process involving passing an electric current through a solution containing a compound differentiated into ions.

Non-metallic Minerals

• Nitrates:

Reaction Rate Equations and Orders

The rate equation expresses the reaction rate (q) at a given instant (n) as a function of the concentrations at that moment. The constant, k, that appears in the equation is called the rate constant. The exponents, x and y, are the partial orders of the reaction with respect to the concentrations of each substance. Their sum (x + y) is called the overall reaction order.

The half-life (t_½) is the time it takes for a certain reactant's concentration to reduce to half.

Reaction Orders: Zero, First, Second, and Third

• Zero-order reactions
• First-order reactions
• Second-order reactions
• Third-order reactions

Theories of Chemical Reactions

Collision Theory: Molecular Interactions

Lewis proposed that chemical reactions occur...

1. History and Use of Climate Models

Climate models have evolved from basic atmospheric simulations to complex Earth System Models (ESMs) that integrate interactions between the atmosphere, hydrosphere, biosphere, and cryosphere. Early models were based on atmospheric circulation patterns and energy balance equations, while modern models incorporate greenhouse gas emissions, ocean currents, and land-use changes. These models help scientists predict climate change, simulate past climate conditions, and evaluate human impacts on the environment. 2,000 years ago, Theophrastus noticed that draining marshes created a colder climate and deforestation made the ground warmer. FAR, SAR, TAR, and AR4 are climate models with increasing pixel resolution....

Causes of Soil Pollution

• Industrial Activities

  • Chemical Spills and Discharges: Factories and manufacturing plants often handle chemicals that, if spilled or improperly disposed of, can seep into the soil.
  • Mining Operations: Mining activities expose and disperse heavy metals and other pollutants, which can contaminate surrounding soils.
  • Industrial Waste: By-products of industrial processes, such as slag and sludge, are often disposed of in landfills or directly onto land, leading to soil contamination.

• Agricultural Practices

  • Pesticides and Herbicides: These chemicals are used to control pests and weeds but often contain harmful substances that can persist in the soil and disrupt ecosystems.
  • Fertilizers: Excessive use of nitrogen and phosphorus-based

Linear Visco-Elasticity in Bituminous Pavement

The Linear Visco-Elastic (LVE) limits of a range of conventional and modified bituminous binders were investigated using stress/strain sweeps via a Dynamic Shear Rheometer (DSR).

Key Findings on LVE Limits

• Plots of LVE stress and strain limits versus complex modulus and phase angle were produced.
• LVE is primarily used for predicting the response of elastomer-like materials.
• It is also used, to a lesser degree, for the very small strain response of thermoplastic materials.

Characterization of Bituminous Pavement Materials

Understanding Bitumen Composition

Bitumen is a complex mixture of high-boiling or non-boiling components. These components remain unaltered during the crude oil distillation process, meaning...