What are the manifestations and reasons for the internal forces formed by geological and geomorpholo

The internal forces of the geological and geomorphological formation in Italy are the movement of the earth's crust.

Magmatic activity, metamorphism. The manifestation is the Alps.

Apennines, volcanoes, island arcs, islands.

Reason: Crustal movement: The Alps are formed by the mutual compression of the Eurasian plate and the African plate. The Alpine orogeny was formed.

Magmatic activity: volcanoes in southern Italy.

Metamorphism: There is a lot of marble in the Italian mountains.

It is formed by metamorphism.

Topographic map of Italy.

The following is from the encyclopedia.

The southern coast of Europe and the northern shores of the Mediterranean.

Italy is located on the northern shore of the Mediterranean Sea in southern Europe, between latitude 36°28 47°6 north latitude and longitude 6°38 18°31 east longitude. Its territory includes the southern foothills of the Alps and the Po River Plain, the Apennine Peninsula and Sicily, Sardinia and many other islands. The Apennine Peninsula occupies 80% of its entire territorial area.

The northern part of the Italian land border is bordered by the Alps and France, Switzerland, and Austria.

It shares a border with Slovenia and 80% of the country's borders are by sea. To the east, west and south are the Adriatic, Ionian and Tyrrhenian Seas of the Mediterranean Sea, and to Tunisia.

Malta and Algeria.

Across the sea. The coastline is about 7,200 kilometers long. ”

The title is too wordy and confusing.

The upstairs is pulling horses, which means that the people upstairs don't understand.

Italy is a mountainous region with the Alps in the north and the Apennines in the center, the famous Mount Vesuvius and Mount Etna, the largest active volcano in Europe. The country is rich in marble resources and is world-famous.

Volcanic eruptions. Located at the junction of the Eurasian plate and the Indian Ocean plate, the geology is unstable, and there are many volcanoes in the territory, and volcanic eruptions are frequent.

Italy has the Alps (Alpi) in the north and the Apennines in the center. In the north, there is the Po River Plain, where the soil is fertile and agriculture is developed. Montebianco (Montebianco, Montblanc) on the border between Italy and France is 4,810 meters above sea level, the second highest peak in Europe; There are many volcanoes and **, the Apennine Peninsula has the famous Mount Vesuvius on the west side, and Mount Etna in Sicily is the largest active volcano in Europe.

The Italian geological plate is caused by extrusion, which is characterized by roughness.

I don't understand the internal forces and manifestations of the formation of geological landforms in Italy.

Is the texture OK in Italy? There are many manifestations of the action of internal forces.

10 What are the manifestations and reasons for the internal forces formed by geological and geomorphological formations in Italy?

The main manifestations of geological action are divided into internal geological action and external force geological action.

1. Manifestations of internal force geological action of geological action: tectonic movement, magmatic activity, ** action, metamorphism, etc.

Internal geological processes change the structure of the earth's crust and lay the foundation for the formation of landforms. This means that plate movements can explain the deformation of rocks in the earth's crust, both regional and as a whole.

2. External geological action of geological action. Manifestations: weathering, denudation, transport, sedimentation and induration.

Heat from the sun is the main cause of the constant movement of the atmosphere and water, and at the same time provides energy for the reproduction of living things and directly exerts influence on the lithosphere. As a result of all these activities, the protruding part of the earth's surface is damaged by weathering, erosion, etc., and the products of the destruction are deposited in the low depression to form new rocks. The above changes are collectively referred to as external geological processes.

The power of internal geological action comes from the earth itself, and mainly occurs in the interior of the earth, which can be divided into four types: crustal movement, magmatism, metamorphism and ** according to its mode of action.

Crustal motion refers to the mechanical movement of crustal rocks caused by the earth's internal dynamics, such as bending, dislocation, etc. The movement of the earth's crust can be divided into two forms, horizontal motion and vertical motion, according to the direction of its motion.

Horizontal movement often causes the rock layer to be squeezed to produce folds, or the rock layer is stretched and cracked. Vertical tectonic movements cause the earth's crust to rise or fall, and the uplift of the Tibetan Plateau over millions of years is a manifestation of vertical movement.

External geological processes are mainly caused by solar thermal radiation and mainly occur in the surface layer of the earth's crust. Generally, the following procedures are followed: weathering, denudation, transportation, sedimentation, and consolidation.

It mainly includes weathering, denudation, transport, sedimentation and consolidation and diagenesis.

Weathering refers to the chemical decomposition and mechanical breakdown of rocks exposed to the earth's surface under the long-term action of temperature, gas, water and biological factors.

Denudation refers to the destruction of surface rocks by rivers, seawater, lakes, glaciers, and winds during their movement, and the products of the destruction move away with their movements. For example, the coast and river bank retreat due to the impact and erosion of waves and flowing water. When the slope is denuded, the slope material slides and collapses under the action of gravity and other external forces, which is also called block movement.

Geological processes are divided into internal dynamic geological processes and external dynamic geological processes.

Manifestations of internal dynamic geological processes: folds, faults.

The external dynamic geological processes are characterized by weathering, erosion, transport, accumulation, and consolidation of rocks, and the geomorphological manifestations are as follows: desert wind mushroom erosion, loess plateau thousands of ravines, alluvial plains, ......

Geological processes are divided into internal forces and external forces. Manifestations of internal forces: folds, faults. The external forces include weathering, erosion, transport, accumulation, and consolidation of rocks, which are mainly manifested as: desert wind mushroom erosion, loess plateau ravines, alluvial plains, ......

Answer: daIt is the hydraulic action of the Pearl River; b.It is the hydraulic and wind power of the Yellow River; c.It is the action of the wind;

d.For example, the Qinghai-Tibet Plateau is the interaction between the Indian Ocean plate and the Eurasian plate, which belongs to the movement of the earth's crust and is the action of internal forces.

dExternal force: a, water flow, b, wind, cwind, internal force: d, rock movement inside the earth.

The movement of the earth's crust is also a change in the terrain, like the Himalayas is the result of the movement of the earth's crust, isn't it formed, the Himalayas, isn't this the terrain? There are also different terrains that can form canyons, trenches, and so on.

D Analysis: A is caused by the accumulation of flowing water; b is caused by wind accumulation and water erosion;

c is the transport action of wind power; d is formed due to the movement of the earth's crust.

ABC is an external force, and its energy** is solar energy;

d is the action of internal forces, and its energy** is produced by the decay of radioactive elements in the earth's interior.

C. Test question analysis: Figure A represents the source continent of the estuarine delta, which is formed by the sedimentation of flowing water and belongs to the landform formed by the action of external forces; Figure B represents the sand dunes, which were formed by wind deposition and are the result of external forces. Figure C indicates that the rock layer is faulted and dislocated, which is a fault and is formed by the action of internal forces; Figure D shows that the rock formation is bent and folded, which is formed by the action of internal forces.

Comments: This question is not very difficult, basic test questions, students only need to be able to judge the geological structure according to the rock layer changes shown in the diagram, and can judge the difference between internal and external forces in combination with geomorphological characteristics.

Before answering this question, we must clarify two concepts: The energy of internal forces is a variety of actions that come from the interior of the earth and cause changes in the material composition, structure, and surface morphology of the earth's interior and crust. Its energy mainly includes the rotational energy generated by the rotation of the earth and the thermal energy generated by the transformation of radioactive elements.

The manifestations of internal forces include crustal movement, magmatic activity, metamorphism, and so on. As a result of the action of internal forces, the earth's surface becomes uneven, forming mountains and basins. It has become the main force in shaping the shape of the earth's surface, playing a leading role in the formation and development of crustal materials, and is also the basic force in shaping the topography.

Summary: In the long process of change of the earth for billions of years, the action of internal forces is an important factor that leads to the change of topography External forces refer to the effects caused by solar radiation, gravity, gravitational force of the sun and moon and other forces from the outside of the earth (through the atmosphere, water, organisms, etc.). It includes weathering, erosion, transport, sedimentation and consolidation diagenesis.

Supplement: The external force action, also known as the external force action, mainly refers to the action of the earth's surface under the influence of gravity and solar energy, including physical and chemical weathering, flowing water, glaciation, wind, waves and currents. The effect of various external forces (weathering, flowing water, glaciers, wind, waves, etc.) on the gradual erosion of the uplifted part of the surface is usually referred to as denudation; The destructive effect of flowing water on land is called erosion.

In general, the external force is constantly destroying and leveling the uplifted parts produced by the action of internal forces, and at the same time transporting and accumulating these damaged detritus materials into the lowlands and the ocean. Summary: In the process of changing the earth for billions of years, the changes in the topography are also affected by external forces.

In fact, any kind of geological structure or landform cannot simply be said to be formed by internal or external forces, but only to say that internal forces dominate or external forces dominate in a certain period. However, generally speaking, when talking about geological formations, it focuses on internal forces, while when talking about geomorphology, it focuses on external forces. It is of great benefit to remember or understand the manifestations of this to your judgment.

The following are examples of common external forces: Wind erosion: mushroom stones, wind erosion columns, wind erosion depressions.

Wind accumulation: desert and loess.

Erosion by flowing water: river valleys, ravines, karst terrain.

Flowing water sediments: alluvial fans, alluvial plains, deltas.

Glacial erosion: glacial valleys, horn peaks, glacial lakes.

Glacial sedimentation: moraine plains, moraine hills, moraine lakes.

a. This question mainly examines the action of external forces and landforms. External forces mainly change the surface shape through flowing water, wind, glaciers, waves, etc. The main manifestations of external force are:

Weathering, erosion, transport, accumulation, and consolidation of rocks. and is the bending and deformation of the rock formation, which is generated by the action of internal forces. So choose option A for this question.