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Method for inversion of earthquake generation time by using stalagmite

A stalagmite and inversion technology, applied in measuring devices, material analysis through electromagnetic means, instruments, etc., can solve the problems of low measurement accuracy and high cost, achieve high measurement accuracy, low cost, and solve the effect of low measurement accuracy

Inactive Publication Date: 2016-11-09
INST OF GEOCHEM CHINESE ACADEMY OF SCI
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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a method for using stalagmites to invert the age of earthquakes, so as to solve the technical problems of high cost and low measurement accuracy in the determination of the age of earthquakes in the prior art

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  • Method for inversion of earthquake generation time by using stalagmite
  • Method for inversion of earthquake generation time by using stalagmite

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Embodiment Construction

[0019] A method for inverting the age of earthquakes using stalagmites, comprising:

[0020] Step 1. Select the fractured and displaced stalagmite or the dislocated stalagmite as the measurement object;

[0021] Step 2. For fractured and displaced stalagmites, select three sampling points A, B, and C equidistantly on the first fracture surface, and select three sampling points A equidistantly on the second fracture surface 1 , B 1 、C 1 ;

[0022] For the two stalagmite cores D and D where the displacement changes 1 Two points were sampled 10g and stored in separate packages.

[0023] Step 3, collecting samples at each sampling point and packaging them for storage;

[0024] When collecting samples at the sampling points mentioned in step 3, first scrape off the outer loose layer on the fracture surface and then sample. In order to prevent the young carbon from affecting the age of the old carbon, the measurement accuracy can be increased and the measurement error can be r...

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Abstract

The invention discloses a method for inversion of earthquake generation time by using a stalagmite. The method comprises the following steps: a step 1, a stalagmite which has fractures and displacement or a stalagmite whose core is dislocated is used as a measurement object; a step 2, three sampling sites A, B and C which are equidistant are selected on a first ruptured surface of the stalagmite with fractures and displacement, and three sampling sites A1, B1 and C1 which are equidistant are selected on a second ruptured surface; a step 3, samples are acquired on each sampling site and preserved with packaging; a step 4, an accelerator mass spectrometry AMS is used for determining 14C deposition time of the acquired samples; a step 5, earthquake generation time is calculated. The method solves the technical problems of high cost and low measuring precision and the like existed in determination of earthquake generation time in the prior art.

Description

Technical field: [0001] The invention belongs to the technology for determining the age of earthquake occurrence, in particular to a method for inverting the age of earthquake occurrence by using stalagmites. Background technique: [0002] In the current research, some scholars have used GIS to detect earthquake fault zones, and used 14 C to monitor the age of the earthquake fault zone and lidar to monitor the coseismic displacement, and use tree rings to measure the age of the earthquake, but these methods also have certain limitations, not only high cost, expensive, but also limited by many factors. For example: lidar is very expensive, poorer areas may not be able to afford it, which largely hinders the development of co-seismic displacement monitoring; GIS monitoring is greatly affected by surface vegetation and artificial features, and the section of the earthquake fault zone is affected by weathering 1. The erosion intensity of running water is high, and it is not eas...

Claims

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Application Information

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IPC IPC(8): G01N27/62
CPCG01N27/62
Inventor 白晓永田义超马凤杰许燕吴路华
Owner INST OF GEOCHEM CHINESE ACADEMY OF SCI
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