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

Fundamental Earth Science Terminology

Map Scale

The relationship between a measured length on a map and the corresponding length in reality.

Topographical Map

A type of base map representing the physical and human aspects of an area, making them more prominent.

Solstice

A time in Earth's orbit when the Sun is perpendicular to the Tropics.

Equinox

A time in Earth's orbit when the Sun is perpendicular to the Equator.

Meseta

A very large, flat surface elevated above sea level.

Socket

Paleozoic platform rocks forming the basis of the relief.

Cordillera (or highlight skiing)

A high-elevation mountain range that emerged during the Tertiary Orogeny.

Sedimentary Basin (or depression)

A depressed zone formed during the Tertiary period and filled with sediments.

Relief

Global Health Challenges

Emerging and Re-emerging Infectious Diseases

According to the WHO (World Health Organization), from the onset of AIDS to SARS (Severe Acute Respiratory Syndrome), the rate of new infectious diseases has been approximately one per year. These emerging diseases are often transmitted by unknown pathogens. Some of these germs have long been confined to their natural habitats before coming into contact with humans. This is believed to have occurred with devastating hemorrhagic fevers such as Ebola.

Other cases involve re-emerging diseases, where major infectious diseases of the past, dangerous to the human species, have resurfaced due to mutations. Some of these recrudescent diseases are now affecting regions of the world where...

Acid Rain

Acid rain is produced from gases such as nitrogen oxide and carbon dioxide. The combination of each of these gases and water droplets produces sulfuric acid, nitric acid, and others.

Greenhouse Effect

The resulting greenhouse effect leads to global warming, which might affect the global climate and cause landslides due to the partial melting of polar ice caps.

Large-Scale Effects

The effects of pollution are not limited only to where the pollutants are emitted. Reducing the concentration of contaminants in one area does not necessarily reduce the overall degree of contamination.

2.2 Water Pollution

Degradation is caused by water pollution discharges that carry contaminants as water collects soil in its path. Inland waters that run through...

Environmental Impacts and Pollution

Atmospheric Pollution

Environmental contamination results from the introduction of foreign materials into the environment, or the presence of existing materials at concentrations exceeding normal values.

These foreign materials are often caused by contaminating agents and substances.

Atmospheric Contaminants and Control

The most common and widely dispersed air pollutants are described below. Their levels are usually expressed in terms of atmospheric concentration or, in the case of gases, in parts per million air molecules.

Among the air pollutants emitted by natural sources, there is radon, a radioactive gas harmful to human health.

Some contaminants are formed, for example, by the action of the sun on previously...

Atmospheric Phenomena: Cyclones and Anticyclones

Cyclones: These are winds that rotate around a low-pressure center, converging toward the center. They rotate counterclockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere. They are associated with low-pressure systems and often bring unsettled weather.

Anticyclones: These rotate in the opposite direction around a center of high pressure, with winds projecting outward. Anticyclones are associated with high-pressure weather maps and usually bring fair weather. Together, these systems determine the climate of the temperate zone.

Major Storm Systems

Typhoons: These occur on average twenty times a year in the North Pacific, typically during August and September.

Tornadoes: The most...

Biomass Energy Production

Anaerobic Digestion

This process takes place by the action of certain bacteria in the absence of oxygen and at a temperature around 30 °C, converting biomass into biogas.

Biogas Composition and Use

Biogas consists mainly of methane ($ ext{CH}_4$) and $ ext{CO}_2$, and can be used in combustion engines.

Photoproduction of Fuel

Through the action of microorganisms on water and certain organic compounds, hydrogen can be obtained.

Advantages of Biomass Use

• Solves waste disposal problems.
• Prevents pollution.
• Reduces the risk of forest fires.
• Reduces consumption of fossil fuels and other non-renewable energy sources.

Drawbacks of Biomass Energy

• Excessive logging can deplete the plant biomass of a zone.
• Aquatic biomass is difficult to

Water Diversity: Elements of the River System

Water is an essential element for life, but only 3% is freshwater, with the rest being saline.

The Rivers

Rivers are continuous streams whose flow empties into lakes, other rivers, or seas.

Droughts and Floods

• Droughts: Periods of low flow.
• Floods: Periods of high flow.

Flow Rate

The volume of water in a river is measured in cubic meters per second.

The River Regime

The river regime expresses flow rate. Climate variations and the relief condition the rivers, also influenced by lithology, vegetation density, and human action.

Key Elements Affecting River Systems

1) Flow Rate

Flow is greater at the mouth of the river, where there is little evaporation.

2) Irregularity

This refers to the varying amount of water present...

Precambrian Era (4000 - 600 million years ago)

A mountainous band of slate and gneiss (siliceous materials) emerges from the sea, comprising almost all of current-day Galicia. Elevations also emerged in parts of the Central System and the Montes de Toledo, which were later obliterated by erosion and covered by Paleozoic seas.

Paleozoic Era (600 - 225 million years ago)

During this era, the Hercynian orogeny takes place. From the seas that covered most of the Peninsula, the Hercynian mountains arise, composed of siliceous materials. The Hesperian Massif (or Meseta) appears to the west; to the northeast, the massifs of Aquitaine, Catalano-Balear, and the Ebro; and to the southeast, the Betic-Rif Massif. All of these were subsequently worn down by...

Doxa versus Alētheia: In Parmenides, the path of truth (alētheia) is the path of reason, which rejects multiple and changing information as false and affirms the unity and permanence of being. The path of opinion (doxa), by contrast, relies on the senses and accepts multiple, changing appearances as real, without achieving necessary knowledge.

Substantial change: A type of change that transforms a thing completely, changing its very substance. Its two principal forms are birth and death.

Catharsis: Purification.

Categories: Pure a priori concepts of the understanding that make synthetic judgments a priori possible, and that underpin empirical science and its claim to objectivity. The categories apply to the contents of experience or sensible...

Parthenon: An Architectural Marvel

I observe the front, main elevation, facade, or side elevations of a structure. The primary material used in this construction is marble. A significant portion of the outer space is visible, along with a part of the building's interior. The structure rests upon a base (crepidoma) with steps (crepis) extending along its entire perimeter.

Structural Elements

The load-bearing elements include walls and columns. Where visible, the wall presents meticulously matched stones, indicating a regular ashlar construction. The columns do not directly rest on the stylobate. The shaft features sharp edges or ridges, separated by grooves. The capital comprises an abacus, echinus, and collarino.

Supporting elements include the...