Paleomagnetism small sample orienteering acquisition device and use method

A collection device and sample technology, which is applied in the field of directional collection devices for small paleomagnetic samples, can solve the problems of high demand for precise directional collection and low directional accuracy, and achieve the effects of convenient field sampling, easy operation, and portability

Active Publication Date: 2018-06-22
EAST CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In general, there is a great demand for accurate orientation acquisition of small paleomagnetic samples at present, but the orientation accuracy is very low

Method used

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  • Paleomagnetism small sample orienteering acquisition device and use method
  • Paleomagnetism small sample orienteering acquisition device and use method
  • Paleomagnetism small sample orienteering acquisition device and use method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Example 1: A device for directional collection of small paleomagnetic samples, see Figure 1 to Figure 3 ; It includes a connecting device 1 for connecting with the sun compass and connecting with a borehole, a rock core orientation fixing frame 9 and a small sample sampler 19 for fixing rock core samples; the connecting device 1 in this device, the rock core orientation fixing frame 9 And small sample sampler 19 is all made of non-magnetic alloy material.

[0045] Specifically, the connection device 1 includes a casing 2, the top of the casing 2 is open, and a standard sample model 4 is arranged in the casing 2, and the standard sample model 4 is arranged at intervals from the inner wall of the casing, and the interval constitutes a fixed sun compass. The socket 3 is provided with a butt joint standard line 5 on the side wall of the casing 2.

[0046] Further, the bottom of the casing 2 is provided with a drilling casing 6, and the side wall of the drilling casing 6 i...

Embodiment 2

[0051] Embodiment 2: The present invention also provides a method for using the directional collection device for small paleomagnetic samples of rock cores. This method is used on the directional collection device for small paleomagnetic samples as described in Example 1. Specifically, it includes the following steps :

[0052] 1) Use connection device 1 to connect with the sun compass, specifically: insert one end of the socket on the sun compass into the slot 3, rotate the sun compass so that the engraved groove of the sun compass socket is aligned with the docking standard line, and adjust the socket on the sun compass Insert the socket and make the socket clamp the standard sample model to complete the connection with the sun compass;

[0053] 2) Drill small samples, specifically: obtain core sample A (core) on the field drilling platform, and then use an electric drill or bench drill with a glass hole coring bit to drill several small samples on the side wall of core samp...

Embodiment 3

[0065] Embodiment 3: The present invention also provides a method for using a device for directional collection of small paleomagnetic samples in the field. This method is used on the device for directional collection of small paleomagnetic samples as described in Example 1. Specifically, it includes the following steps :

[0066] 1) Use connection device 1 to connect with the sun compass, specifically: insert one end of the socket on the sun compass into the slot 3, rotate the sun compass so that the engraved groove of the sun compass socket is aligned with the docking standard line, and adjust the socket on the sun compass Insert the socket and make the socket clamp the standard sample model to complete the connection with the sun compass;

[0067] 2) Drilling small samples, specifically: using an electric drill with a glass hole coring bit in the field to drill several small boreholes on the rock outcrop (respectively, small borehole a, small borehole b, small borehole c ,...

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Abstract

The invention provides a paleomagnetism small sample orienteering acquisition device and a use method. The device can perform paleomagnetism precise orienteering on small samples, the samples are placed in a ceramic fixing frame having the same size as a standard sample, and accurately oriented standard samples are formed; and the device is suitable for all the magnetometer measurement devices, and can greatly improve the sampling efficiency and the measurement precision. The paleomagnetism small sample orienteering acquisition device includes a connection device for being connected to a sun compass and a drilling hole, a rock core fixing rack for fixing a rock core sample, and a small sample picking device. The method includes the following steps: 1) connecting the connection device and the sun compass; 2) drilling a small hole in a rock core A; 3) using the rock core fixing rack to fix the rock core A; 4) connecting the connection device and the small drilling hole a formed in the rock core sample A; 5) using the sun compass on the connection device to measure the azimuth angle and the dip angle of the small drilling hole a; and 6) picking a sample.

Description

technical field [0001] The invention relates to the field of measurement and analysis of the geomagnetic field, in particular to the technical field of collection of small paleomagnetic samples, in particular to a device for directional collection of small paleomagnetic samples and a method for using it. Background technique [0002] The paleomagnetic experiment is mainly to measure the residual magnetism of the sampled samples, and then perform demagnetization and coordinate conversion according to the measured residual magnetism to obtain the original magnetization characteristics of rocks or sediments, and to study the plate tectonics, mineral deposit exploration, Global change and other major geological significance. For paleomagnetism experiments on drilled core samples, it is difficult to obtain paleomagnetic standard samples (columnar samples with a diameter of 25.4 mm) due to the limitation of core diameters, so bench drills are usually used to drill small samples wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V3/40
CPCG01V3/40Y02A90/30
Inventor 葛坤朋钟艳红张艺露张坤周慧陈强
Owner EAST CHINA UNIV OF TECH
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