Notes, summaries, assignments, exams, and problems for Geology

Non-Renewable Energy Sources

Coal

Formed by the decomposition of plant material. Thermal power plants use the energy generated from coal combustion to produce electricity: the heat produced warms water, and the resulting water vapor moves turbines connected to generators.

• Advantages: The cheapest way to produce energy; our main non-renewable resource.
• Impacts: Increases the greenhouse effect and acid rain; it is a finite resource.

Oil

Formed by the decomposition of organic matter.

• Advantages: The transport sector depends on it.
• Impacts: Localized resources (mostly in the Middle East), oil spills, and increased greenhouse effects.

Natural Gas

Formed by the decomposition of organic matter, it is a mixture of gases such as methane and hydrogen.

• Advantages:

Earth's Structure and Landforms

The Lithosphere

Earth was formed 4.6 billion years ago. Its internal structure consists of:

• The Core: The center of Earth.
• The Mantle: Surrounds the core.
• The Crust: A thin layer of solid rocks.

The external structure includes:

• The Lithosphere: Composed of the crust and the upper part of the mantle.
• The Hydrosphere: All the water on Earth.
• The Atmosphere: The gaseous layer surrounding Earth.

Continents

Continents are large expanses of dry land surrounded by oceans and seas, covering 29% of Earth's surface. The majority are located in the Northern Hemisphere:

• Asia
• America
• Africa
• Antarctica
• Europe
• Oceania

Islands

Islands are smaller masses of land surrounded by water, often located near the coast of continents. Some islands are grouped... Continue reading "Earth's Structure, Landforms, and Climate Zones" »

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... Continue reading "Understanding Cyclones, Local Winds, and the Rock Cycle" »

By the clash between the two plates, are formed at high pressure. It is up to the edge, and the mountain is formed. Rocks break when they start shaking earthquakes are generated: Many volcanoes are formed. Tektinikoak side of the plate are two slides. Are formed at high pressure, causing earthquakes that can be broken by the stones. Also called fault-transformation. The earthquake, or seismoak sismikosk movement, a land-force in a more or less in the shake are usually are short term. Is generated inside the Earth hipozentro or earthquake seismic focus. The first site is called the epicenter of terror detect the surface. Geosphere Volcanoes within the hole or slit materials are cast out. Tephra. Lava. Volcanic gas. Among the preventive measures... Continue reading "I is correct ii is correct" »

Stages of Post-Fire Forest Regeneration

• 1. Survival: Underground elements and the seeds of pyrophytes survive, even when the floor is completely damaged.
• 2. Early Regeneration: If the soil was not totally damaged, regeneration starts. During the early years, a pasture consisting of herbaceous plants is formed. If the soil has been removed, this may not start or may take longer.
• 3. 10 to 15 Years: Low shrubs predominate and coexist with the grass. Burned logs decompose and nourish the soil. The animal population increases.
• 4. 30 to 35 Years: Large shrubs predominate, eventually becoming a tree-filled area. This stage allows for mammals such as the fox.
• 5. Forest Formation: The formation of a forest takes 50 to 60 years. Even then, another half-century

Hominization and Human Evolution Facts

1. What are four characteristics that encouraged hominization?

   • Bipedalism
   • Language development
   • Increased skull size
   • Manipulation/Tool use

2. What has allowed us to determine the brain capacity of ancient hominids?

   Fossils.

3. What percentage of human genes are shared with a chimpanzee?

   98.7%

4. What was the last hominid species that lived alongside Homo sapiens?

   Neanderthal Man (Homo neanderthalensis)

5. What is the original territory of the human species?

   The African continent.

Origins of Life and Basic Biology Concepts

1. What is symbiosis?

   A: A trophic relationship between two species.

2. Why was the Miller-Urey experiment important?

   B: Because it showed that organic molecules can be formed from inorganic substances.

3. What are plasmids?

   C:

Coastal Formations

• Outward Flows: These extend from the coast to the deep sea, including gulfs and deep-sea starters near the coast.
• Cliffs: These are coasts that meet the sea with a steep drop. Sea erosion forms caves in the lower sections, wearing away areas of lower hardness to create sea arches. When the bottom of the cliff is pierced, or the top of the arch detaches, it can form sea stacks (Needle rock on the sea).
• Beaches: These are flat expanses with gentle slopes composed of sand, gravel, or pebbles, situated at the coast level. They consist of continental and marine sediments.
• Marine Terraces (The Shallow): These are marine erosion platforms parallel to the coast that have been elevated above lower sea levels. The flatter shapes represent

Transportation

The eroded materials produce waste that can be classified into three types: ions, small particles, and clasts or fragments of different sizes. Depending on their size, detrital or clastic sediments are classified as gravel or ridges, coarse and fine sand, silt, and clay. The sediments are transported to lower areas by conveyor agents. The most important agent is water, followed by wind and glaciers.

In some cases, such as with particles dissolved in water, all transported materials are alike. However, in most cases, the lighter particles reach farther than the heavier ones, which are usually larger. This is known as selective transport, resulting in a selection of materials by size. Transport occurs in three basic ways: in solution,... Continue reading "Sediment Transport and Deposition Processes" »

The primary elements of a construction include foundations, structures, walls, closing elements, vertical division components, vertical circulation elements, and decks or roofs.

Foundations and Structural Systems

The foundations serve as the basis upon which the building rests. The structure is the set of elements designed to withstand loads and transmit them to the foundations. Key structural elements include pillars, beams, and uprights. The material used for the structure depends on the construction type; for instance, wood, ceramic, or stone are commonly used in low-altitude housing.

Wall Classifications and Functions

Walls are vertical structures that isolate a construction site from the exterior. The arrangement of bricks is referred to as... Continue reading "Essential Components of Building Construction" »

Continuation Vertical Dykes

Phases in the construction of dams with floating caissons:

Construction, launching, towing, positioning, anchoring, filling, building superstructure.

Factors to Consider in Building:

1. Previous studies
2. Quarry selection
3. Execution control

Previous Studies:

• Geological studies
• Climate studies
• Bathymetric studies
• Organization and valuation
• Execution

Works for Berthing and Mooring:

That perform the following functions: Contact land-sea, surface crossing of goods, creating a terminal area of transportation systems and storage area of goods.

Types:

Dock: A structure with two vertical planes where vessels are attached to a horizontal plane through which the manipulation of goods is done.

Pontoons and platforms: Areas or pathways through which... Continue reading "Dam Construction & Port Infrastructure: Phases, Factors & Types" »