Soil Chemistry, Ecology, and Properties
Soil Chemistry and Physical-Chemical Properties
pH
Ion Exchange Capacity
Properties related to clay and silt in the mineral fraction, ion exchange capacity is one of the most important soil properties. It refers to the reversible exchange of cations and anions between minerals and high surface area organic particles with specific molecules and ions. The adsorption of ions is of great significance for:
- Reactions in the soil (pH)
- Nutrient supply
- Structure of soil formation processes
Exchangeable ions are
Read MoreLandforms Glossary: Definitions & Examples
CERRO WITNESS: Rest of the platform in a tabular relief (set of hard and soft layers arranged horizontally in which erosion has carved a horizontal landscape). With increasing erosion by rivers in the soft layers, hills are formed, and if the plateau is attacked by erosion everywhere, “isolated hills with flat tops” appear. They are quite common in sedimentary basins of the two sub-plateaus and in the depression of the Ebro.
TECTONIC FORM OR STYLE: Set of characters that a tectonic structure may
Read MoreGeological Agents: Shaping Earth’s Surface
1. Introduction to Geological Agents
Geological agents, including the atmosphere, water, ice, sea, and wind, shape Earth’s surface through various external processes. These processes include weathering, erosion, transport, and sedimentation. Latitude, altitude, climate, and human actions also play a role.
2. Weathering: Breaking Down Rocks
Weathering is the breakdown of rocks. There are three types of weathering:
- Physical Weathering: Rocks break into fragments without chemical alteration. Examples
Magmatic Rocks: Formation, Properties, and Their Relation to Plate Tectonics
Magmatic Rock Formation and Transformation
Magmatic rocks, through erosion, sedimentation, and transport, become sediment. Sediment, through diagenesis, becomes sedimentary rock. Sedimentary rock, through metamorphism, becomes metamorphic rock. Metamorphic rock, through anatexis, becomes magma. Magma, through solidification, becomes magmatic rock. Sedimentary rocks can also undergo erosion, transport, and anatexis to become metamorphic rocks, which can then transform into magmatic rocks through
Read MoreExploring Spain’s Diverse Landscapes: Plateaus, Coasts, and Islands
Exploring Spain’s Diverse Landscapes
The Outer Ridges of the Plateau
Formed in the Alpine orogeny of the Tertiary period, these ridges are primarily composed of limestone.
A) The Pyrenees
These mountains exhibit a complex structure:
- The Shaft: The ancient Hercynian massif of Aquitaine, rejuvenated during the Alpine orogeny, features rugged Paleozoic materials.
- The Pyrenees (Tertiary): Formed by limestone, these mountains are softer and less elevated.
- The Median Depression: A long, narrow depression located
Geographic Coordinates and Iberian Relief: A Comprehensive Guide
Unit 1: Geographic Coordinates
Geographic Coordinates
A spatial reference system using imaginary lines (parallels and meridians) to locate any point on Earth. Requires latitude and longitude. Example: Menorca (40° N, 4° E).
Geographic Determinism
19th-century geographic theory stating that physical factors determine human activities. Societies develop based on environmental characteristics. Key figure: Ratzel. Example: Relief influences trade and communication.
Equator
The 0° parallel, equidistant
Read More