Is there any essential difference between Yadan and Danxia?

Danxia landform and wind-eroded castle are often considered to be Yadan landforms.

Yadan landform and wind erosion castle are sometimes said to be Danxia landform.

In addition, the materials that make up these landforms, whether rocks or sediments in rivers and lakes that have not yet turned into rocks, are actually formed in rivers and lakes on land, but when confronted with these landforms, people often mistake their sedimentary layers for evidence that "this was the ocean a long time ago". And so on, misleading tourists and young students on the way to knowledge, and it is necessary to explain it.

First, the main causes are different.

1. Danxia landform: the erosion and abrasion of surface water and the tectonic joints developed vertically on the surface are one of the main causes.

2. Yadan landform: It is mainly referred to as strong wind erosion and abrasion.

Second, the distribution is different.

1. Danxia landform: mostly formed in the slope where modern rivers or rainwater flow.

2. Yadan landform: mostly distributed in the desert area formed after the uplift of the ancient riverbed and lake bottom.

Third, the stratigraphic balance is different.

1. Danxia landform: mainly consolidated rocks from the Cretaceous to the Tertiary.

2. Yadan landform: mainly the semi-consolidated and semi-consolidated sediments of the Quaternary period.

The differences between Yadan and Danxia are: different erosion methods, different forming substances, different scales, different arrangement methods, and different colors.

1. Different erosion methods. The Danxia landform is dominated by flowing water erosion; The Yadan landform is dominated by wind erosion.

2. The formation of substances is different. The main material that forms the Danxia landform is rock; The material that formed the Qing and Yadan is mainly composed of loose and weak, salt-cemented sediment from rivers and lakes.

3. The scale is different. The scale of Danxia landform is large; Yadan individuals are relatively small and more susceptible to erosion.

4. The arrangement is different. There is no obvious directionality in the arrangement of Danxia landform; The arrangement of Yadan landform is relatively regular and has a certain directionality.

5. Different colors. The Danxia landform is reddish; The Yadan landform is grayish-yellow.

The differences between Danxia and Yadan landforms are as follows:

1.The reasons for the formation are different: Danxia landform is a landform formed by the combined action of gently occurring red sand conglomerate under differential weathering, gravity collapse, flowing water dissolution, wind erosion, etc.; The Yadan landform is a landform formed by wind erosion.

2.Different colors: Danxia landform is reddish; The Yadan landform is grayish-yellow.

3.The characteristics of sedimentary raids are different: the Danxia landform is dominated by oolitic hematite and calcareous nodules, which are mostly formed in humid and hot environments; The Yadan landform is dominated by horizontal bedding and large-scale cross-bedding, which are mostly formed in dry environments.

4.The scale is different: the Danxia landform is larger; The Yadan landform is relatively small and easy to be eroded.

5.The arrangement is different: there is no obvious directionality in the arrangement of Danxia landform; The arrangement of Yadan landform is relatively regular and has a certain directionality (greatly affected by the prevailing wind).

6.The erosion patterns are different: the Danxia landform is mainly eroded by flowing water; The Yadan landform is dominated by wind erosion.

In short, Danxia and Yadan landforms have obvious differences in the causes and characteristics of formation, and they are two different landform types.

The distribution area is different, and the reasons for the formation of landforms are the same, and the composition is different.

Yadan landform is a special landform in Lop Nur area of Xinjiang, which is a typical wind-erosive landform. Danxia landform refers to the landform with steep frontal cliff slopes developed by red beds (not limited to the age of red beds) dominated by continental facies (which may include non-continental interlayers). Danxia landform is widely distributed in China, and 1005 Danxia landforms have been identified, which is accepted by most scholars and can also be expressed as "red bed landform characterized by steep cliff slopes".

The two landforms are completely different soil qualities, and their composition is not the same.

Landform is a general term for the various forms on the earth's surface, which can also be called topography. The surface morphology is diverse, and the causes are also different, which is the result of the comprehensive effect of internal and external geological processes on the earth's crust.

1. Yadan landform is a typical wind erosion landform, also known as wind erosion ridge groove, which is mainly distributed in the northwest of China and formed by wind action. The Danxia landform is mainly distributed in the southern part of China, and is mainly formed by the action of flowing water.

2. The Danxia landform is mostly divided into forests and more feet in a humid and hot environment, and the Yadan landform is mostly distributed in a dry environment.

3. The Danxia landform is eroded by flowing water, mainly by the development of vertical joints and the erosion and weathering of external forces. The Yadan landform is mainly affected by wind erosion.