Notes, summaries, assignments, exams, and exercises for Geology for Other courses

Sedimentary Rock Formation and Diagenesis

Sedimentary rocks are solid materials deposited from a fluid; the sediment originates from the weathering of surface rocks. Diagenesis refers to the set of chemical, physical, and biological changes that occur after deposition. During this process, recrystallization and lithification (compaction and cementation) take place.

Detrital Sedimentary Rocks

The primary constituents of these rocks are clay minerals and quartz clasts, with sedimentation occurring in a solid state.

Shales

Shales are rocks composed of 75% clay and silt-sized particles. They represent 50% of all sedimentary rocks and are typically found in lakes, floodplains, and rivers. From a geotechnical perspective, they are somewhat weak and poorly...

Bituminous Paints

Bituminous paint materials are derived from the petrochemical industry, natural gilsonite asphalt, coal mine extracts, and coal tar pitch. These coatings are highly resistant to moisture and demonstrate excellent performance against mineral acids, salts, and alkalis. They are commonly used on surfaces that are buried or exposed to high humidity.

Enamel Paints

Enamel paints consist of fatty drying oils blended with hard resins. They offer several advantages:

• Good brightness retention
• Ease of application for interiors
• Excellent extensibility
• Strong adhesion to the substrate

However, they have poor resistance to alkalis, tend to yellow rapidly, and feature slow drying times, resulting in a fragile finish with limited flexibility. They...

The Biennium Reform

Reform of the Army

The first drove Azaña creating a democratic and professional army, which also reduced military effectives. Azaña proposed to end the army's intervention in political life. It was established that officers in active service must promise their allegiance to the regime, conditioning the possibility of retiring with their full salary. The number of bases, officials, units, and the Military Academy of Zaragoza was reduced, and the Supreme Council of Military Justice was dissolved.

The failed reform missed its objectives. It was only received by some sectors of the army as the first aggression against military tradition and caused tensions.

The Religious Issue

The Republic proposed to limit the influence of the...

Carbon Cycle

The main reservoir of carbon is the atmosphere, but water also contains small amounts of CO2. Atmospheric CO2 is fixed by producers through photosynthesis. Consumers and decomposers incorporate carbon through food. Carbon can escape the cycle and remain separated from living beings, such as when fossil fuels are formed.

Nitrogen Cycle

The atmosphere is composed of 78% nitrogen, but this gas is inaccessible to most living things except bacteria. Consumers and decomposers incorporate nitrogen through food. Atmospheric nitrogen can be transformed into nitrates, which can leave the cycle when transported by water to sediment, where they form sedimentary rocks.

Homeostasis in Ecosystems

Homeostasis is the set of self-regulatory mechanisms...

Demographic Explosions

1670 (year) — 500,000,000 inhabitants; 1810 — 1,000,000,000; 1930 — 2,000,000,000; 1975 — 4,000,000,000; now — stagnant.

Systems Theory

Systems theory: a microscope for nearby objects and a telescope for the most distant; the macroscope will bring us closer to complex relationships hitherto unattainable.

Relationship Between Humans and Nature — Gaia

Relationship between man and nature. Gaia: The Gaia hypothesis interprets nature as a complex interrelationship between environmental systems that together form a kind of self-regulated superorganism. Global warming or alterations of ocean circulation may be adaptive reactions of the whole planet in response to environmental pressures.

Atmosphere and Earth's Thermal

Mesozoic Sediments in the Dinarides

Mesozoic sediments in the outer Dinarides are classic carbonate sediments, while the central and inner Dinarides have volcano-sedimentary and flysch sediments.

Triassic Period

The Triassic sediments spread over the Vrnograč and Bosanski Novi band over western Bosnia, north and northeast Herzegovina, and southeast Bosnia. The second broader band goes from Vareš over Olovo, Glasnica, and Romanija to Višegrad.

Jurassic Period

The Jurassic period sediments occupy the largest part of the outer Dinaric zone, where it is mostly developed in the limestone-dolomite facies. It is located in the area of Bihać to Gacko and Trebinje. The Jurassic age volcano sediment formations are also found in the central zone from Kozara...

Prehistory of the Iberian Peninsula

Lower Paleolithic (5 million to 10,000 BC)

The Paleolithic is the era in which humans gathered food and collected resources, used fire and made stone tools. It is divided into three periods.

Lower Paleolithic (Homo erectus, Homo antecessor)

Lower Paleolithic humans lived in basic social groups in which everyone gathered food and reproduced. They used rudimentary stone tools. Early hominins did not know how to cook meat and had not yet mastered fire. Once fire was known, people lived in caves and worked as hunters.

Middle Paleolithic (Neanderthal)

Neanderthals lived in the Mediterranean region. They were about 1.50 m tall, had a strong build and used instrumental tools. They made points and scrapers from flint,...

The Devastating Impact of Plastic Pollution

Ubiquitous Waste: A Global Problem

Plastic waste has become ubiquitous, contaminating every corner of our planet, including our oceans. Its persistence and improper disposal lead to its widespread distribution, harming ecosystems and wildlife.

Biodegradable vs. Non-Biodegradable: A Misconception

While plastic may break down into smaller pieces, it does not biodegrade. These fragments can be ingested by animals, entering the food chain and causing contamination and health issues.

The Lasting Legacy of Plastic: A Threat to Humanity

Most plastics are virtually indestructible, outlasting even the harshest conditions. This poses a significant threat to our planet and future generations, as it will continue to...

Marine Microbiology and Biomass Analysis

Alternative methods of direct calculation of bacterial biomass and obtaining clarity through image analysis to study populations. C-ecology is essential for understanding these dynamics.

Genetic and Molecular Techniques

The Green Fluorescent Protein (GFP) is introduced into the genome by genetic recombination for studies in natural media. DAPI binds to nucleic acids of any cell, while fluorescent antibodies are specific to the targeted antigen.

Microbial Ecology and Cultivation

Bacteria require moisture, organic matter (MO), and oxygen (O2), so they must be absent for certain anaerobic types, indicating that oxygen-producing cyanobacteria or sufficient organic compounds limit the system based on light availability....

South American Ecosystems: Climate, Flora, and Fauna

This document details various South American ecosystems, focusing on their unique wildlife, vegetation, soil types, and climatic conditions across different regions.

National Monuments: Araucaria and Larch Forests

Between 37º and 40º South Latitude (LS), in the Andes Cordillera (AC), the Nahuelbuta Araucaria forest appears. These magnificent trees, reaching 50 meters in height and growing up to 1000 years old with a diameter of 1 to 2 meters, thrive in volcanic soils with precipitation (PP) ranging from 1500 to 4000 mm.

At 39º and 43º LS, the Larch (_Fitzroya cupressoides_) is found in both the Pelada Mountain Range and the Coastal Range (CA). It is an evergreen tree, reaching up to 50 meters...