What scientific discoveries did Yutu make in this lunar exploration?

Eight people answered.

Anonymous user

202 1-04-04

First of all, Yutu discovered a new type of basalt, which is a huge unit. The accurate content of 12 element in lunar soil was obtained by particle excited X-ray spectrometer. Comparing the lunar soil of Apollo Moon Sea Basin, we found that the lunar soil of Chang 'e-3 landing site has higher iron and titanium content, but lower aluminum content, showing a completely different composition, indicating that the basalt under it is a new type. In addition, the lunar soil here is rich in potassium, zirconium, yttrium and niobium, indicating that this basalt is mixed with 10-20% Kripke. According to the detection results of Yutu, basalt may be formed by partial melting of the source region of the lunar mantle rich in iron and titanium, and then mixed by Kripke stratum at the bottom of the lunar crust during upwelling, and finally overflowed the lunar surface and filled into Yuhai Basin. Importantly, the radar detected that the thickness of this young basalt layer reached195m, which indicated that there was still a large-scale volcanic eruption in Yuhai Basin until 2.5 billion years ago.

Secondly, Yutu used radar to measure the thickness of lunar soil on the surface of the moon for the first time. The structure and thickness of lunar soil in the landing area are obtained by using signal processing technologies such as instantaneous spectrum analysis and migration imaging in the field of seismic exploration. The lunar radar profile shows that the lunar soil has a layered structure, with a layered thickness of about 0.7 meters at the top, uniform texture, almost no stones, and some ups and downs at the bottom boundary, with an average thickness of about 5 meters. Because the lunar soil was formed by an asteroid hitting the rocks on the surface of the moon, the older the geological age, the greater the thickness of the lunar soil. The age of Chang 'e-3 landing area is obviously younger than other lunar areas, but the measured lunar soil thickness is obviously larger than 2-4 meters estimated by other indirect methods, indicating that the lunar soil thickness of the whole moon may be underestimated. Because important resources such as helium 3 and hydrogen mainly exist in lunar soil, this discovery will have a great impact on the estimation of these important resources.

In addition, Yutu also analyzed the chemical composition and spectrum of the original lunar soil on the lunar surface, and the results can be used as the calibration standard value of the lunar orbit remote sensing detection data, which can improve the interpretation accuracy of the chemical composition and mineral composition of the whole month. Orbital remote sensing can detect the chemical composition distribution of the whole moon, but its precision and accuracy are poor. Although in-situ measurement has high precision and accuracy, it can only detect specific positions. Without in-situ measurement data, it is difficult for scientists to evaluate the accuracy and precision of orbital remote sensing data. The in-situ detection data returned by Yutu is equivalent to providing a comparable standard for orbital measurement data, because this station has both in-situ detection data and orbital detection data. By comparing with in-situ detection data, scientists can modify the processing method of orbital detection data, thus improving accuracy and accuracy.

139

144

step on

Carbon monoxide detector in underground garage _ Yuante focus on carbon monoxide detector in underground garage 10 years _2500 enterprise cases

Recommended information of carbon monoxide detectors worth seeing.

Yuante has been focusing on underground garage carbon monoxide detector 10 for more than 0 years, providing professional underground garage carbon monoxide detector for clean areas such as food, medicine and cosmetics. Remote _ Third Generation Fast Response and High Precision Carbon Monoxide Detector for Underground Garage

Shenzhen yuante technology co., ltd. advertisement

Taobao underground pipeline detection leaks millions of goods, complete categories, don't miss it!

Recommended information of underground pipelines worth seeing.

Taobao value-for-money underground pipeline detection and leak detection, excellent quality, surprise price, complete goods, Amoy you satisfied! On Taobao, surprises can be seen everywhere!

Hangzhou Hongyi Advertising Co., Ltd.

Hermione's fans

2022-03- 13

watch out for

Thank you for your attention.

First of all, Yutu discovered a new type of basalt, which is a huge unit. The accurate content of 12 element in lunar soil was obtained by particle excited X-ray spectrometer. Comparing the lunar soil of Apollo Moon Sea Basin, we found that the lunar soil of Chang 'e-3 landing site has higher iron and titanium content, but lower aluminum content, showing a completely different composition, indicating that the basalt under it is a new type. In addition, the lunar soil here is rich in potassium, zirconium, yttrium and niobium, indicating that this basalt is mixed with 10-20% Kripke. According to the detection results of Yutu, basalt may be formed by partial melting of the source region of the lunar mantle rich in iron and titanium, and then mixed by Kripke stratum at the bottom of the lunar crust during upwelling, and finally overflowed the lunar surface and filled into Yuhai Basin. Importantly, the radar detected that the thickness of this young basalt layer reached 195 meters, which indicated that there was still a large scale at that time. ...

step on

More experts

Zongzhanqin 032

High-quality answers in the field of education and training

The world is big, explore slowly.

Consultation concern

Thank you for your attention.

With the new dawn on the back of the moon, the Chang 'e-4 lander and Yutu-2 lunar rover, which were "sleeping" on the moon, ended their cold and long moonlit sleep at 3: 25 on May 17 and at 6: 00 on May153, respectively, and were awakened by the light and ushered in 65438. Yesterday was also the 500th Earth Day when Chang 'e IV landed on the back of the moon.

According to the official news of "China's lunar exploration project", in these 500 days, the accumulated mileage of the "Yutu II" lunar rover is 447.68 meters, and it is currently 292 meters away from the lander. During this period, scientific detection experiments such as rock detection, rutting detection and crater detection were carried out. Based on the in-situ detection data of lunar radar, the geological layered structure within 40 meters underground of the landing zone on the back of the moon is revealed for the first time, and its material composition and evolution mechanism are expounded. In addition, the "Yutu II" lunar rover also successfully revealed the material composition on the back of the moon by using the in-situ spectral detection data of the infrared imaging spectrometer, verified that the lunar mantle is rich in olivine, and deepened human understanding of the formation and evolution of the moon.

It is worth mentioning that based on the data of panorama camera mosaic image and DOM image at 65438+July LET0 1704 in Jade Rabbit,