Do geological processes have to go through a long period of time?

Yes, the smallest unit of measurement for geological time is millions of years, and the stratigraphic division is determined based on iconic paleontology or iconic stratigraphy. From the perspective of biological evolution, for an organism to become a symbol of a certain era, it needs to go through a long period of evolution and decline before it can be a symbol of a certain era, and it takes a long time to deposit a layer with a thickness of several hundred meters, and it needs to go through the changes of the earth's crust.

Hahaha, mutation exists in the gradual process, and the gradient is contained in the mutation.

The past, present and future exist at the same time, and there is no difference in time. In fact, it is not slow, for example, 100 million years is no different from a minute. The exchange of matter between the positive and negative spaces is quite a short period of time. Geological processes exist all the time, and the changes never stop for a moment.

It can only be said that there is a difference in the length of the relative appearance of the results, and geological processes are not a slow process. For example, the lifting and settlement of the ground always exists, and the changes of the joint side stop all the time.

Not necessarily. In geology, there are two theories: gradual change theory and catastrophic change theory.

Like volcanic eruptions, mudslides, etc., are catastrophic, instantaneous.

Some strata have undergone very little metamorphism, and the time required for sedimentation is shorter.

For example, soil is deposited, while coal seams are formed by a series of coalification processes after plant deposition.

For example, some lithological strata have very little compressibility, so the time required for sedimentation is very short, and the compressibility of coal seams is larger, and the coal seam of 1cm is formed by a sedimentary layer of several meters through various compaction actions, and the time used is even more conceivable.

Temperature, pressure, and time are all prerequisites for geological processes to occur.

Don't think about this, it's going to be n light years, and when you see you're going to **, it's going to be a long time, and all kinds of geological processes are very subtle.

Geology. Application in everyday life. When it comes to geology and life, the first thing that comes to mind is resource exploration. Geology is the determination of metallic mineral resources and fossil fuels.

An important theoretical reference for the exact location. For example, oil is a special fluid with a unique pattern of formation and aggregation, so the place where it gathers is often not where it is formed. In general, geological depressions with well-developed fissures around them are conducive to the accumulation of petroleum resources, but these structural features are buried deep under thick strata and cannot be seen on the surface.

In order to find them, it is necessary to systematically explore the geothermal temperature, pressure, and stress data of an area to understand the stratigraphic structure and thus find valuable stacking units and reservoirs.

Schematic diagram of <> oil exploitation. Geology is also an important reference for urban construction and site selection of water conservancy facilities. A city built on **?

How tall is the building? In addition to historical and economic factors, geological features are also considered. Beijing, for example, sits in a typical floodplain with solid bedrock layers covered by tens of meters of sand.

Such geological conditions are not conducive to the stability of high-rise buildings, and it is easy to cause soil liquefaction in the event of a strong earthquake. Hence the super high-rise building in Beijing.

During construction, deep foundation piles are first driven underground to reach a stable bedrock layer, and then the building is covered with foundation piles to ensure the stability of the building.

Several common piles for high-rise buildings. The location of reservoirs and dams is important for the safety of downstream watersheds, as is geology. Why should large dams avoid high mountains and deep valleys that look good for damming?

The geology is not good. Alone, karst landforms.

It's not good, there are too many caves, too much water seepage; Weathered interlayer rocks are not good, the rocks are soft and easy to peel off; Faults and fractures are not good, and the formation stress is too great, and it is easy to collapse in dislocation. There are only solid volcanic rocks.

Granite, basalt.

etc.) strata are the best choice. Geology also plays an important role in monitoring geological hazards.

Geology can predict the best of the best, issue early warnings of some natural disasters, do resource exploration, draw maps, and do resource development and environmental protection city construction, water conservancy and hydropower construction.

You can also study geographical phenomena, you can also study disasters, you can also predict them, you can also study geography, and you can also issue some natural disaster warnings, which are all better ways to use.

First of all, when you go to a scenic spot, you can pick up a stone and pass through the texture and cross-section of the stone. You can roughly judge the geology and topography of this place. And all kinds of substances on the earth form the daily necessities of our lives.

Plastics, for example, are made from petroleum. and behind the lithium element in the battery. There are a lot of geologists who have put in the work.

Geology not only studies the earth's past, but also studies the movement of tectonic plates, and judges the probability and time of the occurrence of various geological disasters.

The geological process has been very long.

a.That's right. b.Mistake.

Correct Answer: False.

The longest geological epoch is the Mesozoic Era. The Mesozoic is the second generation of the Phanerozoic, later than the Paleozoic and earlier than the Cenozoic. The strata formed late during this period are called Mesozoic.

During the Mesozoic era, the global climate was relatively arid and seasonally varied, especially in the interior of Pangea. Since the late Carboniferous period, the global climate has gradually become arid. This period of low sea levels may have contributed to extreme temperatures. Due to the high specific heat of water, large bodies of water can stabilize air temperatures, especially in the oceans, while terrestrial air temperatures adjacent to large water bodies vary less.

Since the inland bend of Pangea is far from the ocean, the temperature in these areas varies greatly and there may be vast deserts.

Introduction to Mesozoic animals.

During the Mesozoic Era, reptiles (dinosaurs, chromosaurs, pterosaurs, etc.) flourished unprecedentedly, so there is a humiliation of the reptile age, or the age of dinosaurs. Birds and mammals appeared during the Mesozoic era. Marine invertebrates are characterized by the flourishing of ammonites, so it is also called the ammonite age.

Freshwater invertebrates, with the continuous expansion of land, the favorable conditions of rivers and lakes, the development of bivalves, gastropods, lobes, mesozoans, etc., are very important for the division and comparison of terrestrial strata.

1. Geological period refers to a long period of time in the history of the earth in which stratigraphic records have been recorded. Since the oldest strata on Earth have been discovered, the isotopic age value is about 4.6 billion years old. Therefore, the history of the earth is generally divided into two major periods, the period before 4.6 billion years is called the "astronomical period" or "pre-geological period", and the period after 4.6 billion years is called the "geological period".

2. Take a look at this geological chronology.

3. The past 40 years is not a geological period, because this period is too short, it belongs to the latest stage of the geological epoch - the second epoch of the Quaternary binox, which began 12,000 10,000 years ago and continues to this day.

It refers to the period of geological history! The general geological time is in the geological chronological sequence of millions of years!

No, geologically in millions of years.

Answering ideas modeling:

1. The formation process of topography and landform

Environmental characteristics of a landform at different moments – marine or terrestrial rock environment; Internal force or external force environment jujube type, etc.

Matter – magma.

rock formations, sediments, etc.

The form of movement of the earth's crust – uplift or depression.

Geological forms of action - internal forces (cooling, solidification, metamorphism, etc.), external forces (weathering, erosion, transportation, accumulation, consolidation and rock formation), etc.

2. The sequence of occurrence of geological processes:

Erosion is preceded by uplifting, and sedimentation is preceded by sinking.

Sedimentary rock. It is stratified, and the higher up the rock formation, the younger it is. The intrusive.

Earlier than the intruder.

Generally, it is folded first and then faulted.