A joint measurement method for argon-argon age and cosmic exposure age of extraterrestrial samples

A sample and universe technology, which is applied in the field of joint measurement of argon-argon age and cosmic exposure age of extraterrestrial samples, which can solve the problems of many operation steps, unable to explain geological processes at the same time, and the detection accuracy needs to be improved.

Active Publication Date: 2021-10-29
INST OF GEOLOGY & GEOPHYSICS CHINESE ACAD OF SCI
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Problems solved by technology

In the prior art, the above-mentioned detection items are usually tested separately and independently, not only the operation steps are numerous, but also the final detection accuracy needs to be improved
Moreover, it is necessary to prepare two samples for independent detection. Due to the inhomogeneity of the samples, the argon-argon age and the cosmic exposure age measured by the two samples may not be used to explain a certain geological process at the same time.

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  • A joint measurement method for argon-argon age and cosmic exposure age of extraterrestrial samples
  • A joint measurement method for argon-argon age and cosmic exposure age of extraterrestrial samples
  • A joint measurement method for argon-argon age and cosmic exposure age of extraterrestrial samples

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Embodiment Construction

[0041] A method for joint measurement of argon-argon age of extraterrestrial samples and cosmic exposure age, comprising the following steps:

[0042] A. Pack the samples;

[0043] B. Put the packaged sample into the neutron reactor for irradiation;

[0044] C. Carry out Ar isotope measurement on the sample after neutron irradiation, and calculate the argon-argon age and cosmic exposure age.

[0045] In step A, the sample to be tested is packed into a circular cake shape with a diameter of 5 mm in aluminum foil, and each sample package is vertically spaced from the chronological standard sample, and they are put into a glass tube together.

[0046] In step B, the potassium salt and the calcium salt are packaged into circular cakes with a diameter of 5mm, and are subjected to neutron irradiation together with the glass tube containing the sample to be tested. Each irradiation contains 1 potassium salt sample and 1 calcium salt sample.

[0047] In step C, the gas components of ...

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Abstract

The invention discloses a method for joint measurement of the argon-argon age of an extraterrestrial sample and the cosmic exposure age, comprising the following steps: A, packaging the sample; B, putting the packaged sample into a neutron reactor for irradiation; C 1. Carry out Ar isotope measurement on the sample after neutron irradiation, and calculate the argon-argon age and cosmic exposure age. The invention can improve the deficiencies of the prior art, and realize the high-precision joint measurement of the argon-argon age and the cosmic exposure age of a sample.

Description

technical field [0001] The invention relates to the technical field of extraterrestrial sample detection, in particular to a method for joint measurement of argon-argon age and cosmic exposure age of extraterrestrial samples. Background technique [0002] When studying the properties of extraterrestrial samples, the determination of their argon-argon age and cosmic exposure age are common detection items. In the prior art, the above-mentioned testing items are usually tested separately and independently, not only the operation steps are numerous, but also the final detection accuracy needs to be improved. Moreover, two samples need to be prepared for independent detection. Due to the inhomogeneity of the samples, the argon-argon age and the cosmic exposure age measured by the two samples may not be used to explain a certain geological process at the same time. Due to the preciousness and scarcity of extraterrestrial samples, it is particularly important to obtain as much in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01T1/00
CPCG01T1/00G21G1/02G01N23/222G01N23/005G01T1/167H01J49/26
Inventor 苏菲贺怀宇刘子恒李健楠杨瑞洪
Owner INST OF GEOLOGY & GEOPHYSICS CHINESE ACAD OF SCI
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