Why is the study of geology limited to the earth s crust?

This is nonsense, there are also studies of the mantle core in geology, but they are often geophysical and mineral geochemical data, and other data are less because human beings have not yet drilled through the earth's crust, because the thinner oceanic crust is also 5-7km and the deepest human oceanic drilling is 3-4km thick, and geology is a first-level discipline, and there are many second-level disciplines under it, and some schools even have planetary geology.

Geology is the study of the earth. The Earth includes the solid Earth and its outer atmosphere. Geology & Geography.

The object of study and its differences: the solid earth includes the outermost crust and the middle mantle.

and the three main layers of the Earth's core. At present, the upper layers of the solid Earth, that is, the upper part of the crust and mantle, are mainly studied.

Geological research has strong regionality, history and comprehensiveness. Only geological theories that are based on sufficient practical data, especially on the basis of abundant data sufficient to fully explain the factors of spatial and temporal variation, can have a wider applicability.

These characteristics of the quality of cherry socks determine that general geological research must pass a certain proportion of field field investigation, with the corresponding indoor research. Field investigation and laboratory research constitute a complete geological research process of observation, recording (including mapping) sampling, preliminary synthesis, experimental analysis, summary and improvement, and review and verification. Geological research is essentially a comprehensive investigation and research process for its research object.

An important aspect of geology's service area is the development of the earth's resources.

Among them are related to mineral resources.

and the study of new energy, which is still in the most important position. At the same time, due to the needs of regional metallogenic research, the comprehensive study of regional geology will be further strengthened, and the development of stratigraphy, paleontology, sedimentology, structural geology, geochronology, as well as regional magmatic activity research and metamorphic geology research will be promoted to a new level. The research on ensuring a good habitat for human spine storage, hydrogeological problems in arid and semi-arid areas and swampy areas, and engineering geology problems will continue to expand.

Environmental geology, including environmental geological surveys, research on micro-testing techniques and geological measures for environmental protection, is becoming increasingly important.

In short, geology must strengthen basic research, such as mineralogy, petrology, stratigraphy, paleontology and other disciplines with foundational significance, so as to improve the understanding of various geological bodies, geological phenomena and their formation and evolution. At the same time, it is also necessary to fully absorb and make use of the new achievements of other science and technology, including the research results of social sciences, so as to have a more comprehensive and essential understanding of the history of the earth.

and structure, for the development of science, for human beings to more rational and effective development and utilization of the earth's resources, to maintain the living environment, to make due contributions.

When it comes to geology, geography may come to mind, but it is still not the same as geography, I will say a few terms that everyone has heard, everyone knows, such as volcanoes, **, minerals, potatoes, energy, rocks, minerals, paleontological fossils, etc. So what isGeographyWhat about learning? “landWhat do you mean?

It's the earth! that here "quality"What about it, does it mean the quality of the car? If so, then geology is the discipline of weighing the earth?

In fact, this".quality"It should be understood as essence, so the task of geology is to explore the nature of the earth.

Our research covers what the Earth is made of, what its internal structure and external features look like, how the various spheres relate to each other, and how the Earth evolved step by step to what it is now. We have a lot of doubts about the earth, why can't 100,000 of them be fitted, such as: How did the earth form?

How old is the Earth? What was the Earth like in the beginning? How did life on Earth come into being?

What is the earth made of? What does the interior of the Earth look like? How is Earth different from other planets?

For example, we know that the Earth is a rocky planet in the solar system, which means that it is made up of rocks as a whole, and we explore not only the surface of the Earth, but also the interior of the Earth. On the surface of the earth, we study the minerals, rocks, atmosphere, water, and organisms that we can come into contact with, and we give names to these parts, such as the atmosphere, hydrosphere, biosphere, lithosphere. Closed or.

In the interior of the earth, through the study of the relationship between the change of wave speed and matter, we conclude that the interior of the earth should be divided into three circles: the crust, the mantle, and the core.

Introduction to the research scope of geology: 1. Study the materials that make up the earth; 2. Study the spatial distribution of rocks throughout the Earth's interior; 3. Study the history of the earth; 4. Research the application of geology, research methods and means of geology; 5. Comprehensive research. The famous geologists in our country are:

Li Siguang, Liu Dongsheng, Li Jie and other figures. Mr. Li Siguang, a well-known geologist, is one of the founders of geological work in China. Introduction to the scope of geological research:

1. Study the materials that make up the earth; 2. To study the spatial distribution of rocks or structures in the earth's crust and in the entire earth's interior, that is, to elucidate the earth's crust and the earth's knotted temple signs, and to elucidate the new city conditions and evolution laws of these structures; 3. Study the history of the earth; 4. Research the application of geology, research methods and means of geology; 5. Comprehensive research. Extension: Objects of study in geology:

Earth; At present, the main research is on the upper layer of the solid Earth, that is, the upper part of the crust and mantle.

Knowledge of dynamic geology, paleontology, mineralogy, petrology and structural geology

The study of the history and regularity of the development of the earth (mainly the crust and the top layer of the upper mantle) is also known as historical geology. Geohistory is an important sub-discipline of geology.

Before the 50s of the 20th century, geohistory was mainly to establish the stratigraphic system and establish the geological era, and the research scope was mainly limited to the continental part. Since the 60s, the scope of geohistory has expanded to the ocean floor and the deep crust, and the research methods have been greatly improved by involving more disciplines. The research content of geohistory mainly includes the history of sedimentary development, biological evolution and tectonic movements.

The study of the history of the source tremor can provide a theoretical basis for the geological investigation of regional collapse and mineral survey and exploration.

Which of the following is NOT a characteristic of geological research (slag preparation)?

a.The practicality of the discipline beam.

b.The complexity of the phenomenon.

c.Limitations of awareness.

d.Completeness of geological process records.

Correct Answer: Complete Replication of Geological Process Records.

Yes, geology has certain deficiencies in the function of studying the history of the evolution of the earth. While geology can understand the Earth's past evolution by studying rocks, fossils, and geological processes, future geological changes and events are relatively difficult.

Geology mainly infers past events such as crustal movements, volcanic eruptions, etc., by observing and analyzing the geological record. However, due to the complexity and diversity of geological processes, as well as the long time scales of the Earth's evolution, it becomes difficult to determine future geological changes. Geologists can make some decisions based on past patterns and trends, but these can be subject to a variety of uncertainties and often have large margin of error.

In addition, the object of geological research is the evolutionary history of the earth, and other factors need to be considered for future geological changes, such as the impact of human activities, climate change, etc. The influence of these factors often cannot be completely controlled, which further increases the lack of geology in terms of function.

The archaeological and geological stratigraphy of the earth and the stratigraphy of the geology mean the same thing ().

a.That's right. b.Mistake.

Correct Answer: B

Structural geology is one of the three basic disciplines of geology, and its research object is the geological structure of the earth's crust or lithosphere. The so-called geological structure refers to the products of the deformation of the rocks, rock layers and rock masses that make up the earth's crust or lithosphere under the action of force, such as folds, joints, faults, foliage and linearity.

Geological formations are divided into primary and secondary structures. Primary structure refers to the structure formed in the process of sedimentation or magmatism, such as oblique bedding, wave marks, mud fissures, etc. in sedimentary rocks, and flow structures and primary joints in magmatic rocks. Secondary structures refer to the structures formed by the deformation of rocks, rock layers or rock masses under the action of forces, such as folds, joints and faults.

Structural geology focuses on the study of secondary structures formed by rocks, rock formations, or rock masses under the action of internal dynamic geology. However, primary structures can usually reflect the geological background of the formation of secondary structures, and some primary structures are important markers to identify the morphology, occurrence and deformation characteristics of secondary structures, so primary structures are also of great research significance.

The scale of geological structures can range from large to small structures within the lithosphere and huge tectonic units, such as plates or paleoplates, orogenic belts, etc.; Structures as small as outcrop scales or the composition of hand specimens, and even smaller structures can be observed with the help of a microscope.

The main research contents of structural geology include the following three aspects:

1) The geometric form, combination type and distribution law of geological structure.

2) The geological background, kinematics and dynamic mechanism of the formation of geological structures.

and 3) the deformation sequence and tectonic evolution history of geological structures.