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Method and system for determining protrusion grade of transparent minerals in rock, and application of system

A determination method and technology of minerals, applied in the field of determination of grades and grades, can solve problems such as identification errors of mineral components, and achieve the effect of intuitive determination and simple operation methods

Active Publication Date: 2020-07-31
山东省地质矿产勘查开发局第一地质大队
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To sum up, if false Baker lines appear, it will directly lead to wrong identification of mineral composition

Method used

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  • Method and system for determining protrusion grade of transparent minerals in rock, and application of system
  • Method and system for determining protrusion grade of transparent minerals in rock, and application of system
  • Method and system for determining protrusion grade of transparent minerals in rock, and application of system

Examples

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Embodiment 1

[0048] A method for determining the grade of transparent mineral protrusions, especially a method for quickly and accurately determining the grade of mineral protrusions under an orthogonal polarizing microscope.

[0049] It includes the following steps:

[0050]Find the minerals to be tested under an orthogonal polarizing microscope by grinding medium-fine-grained igneous rock slices with a thickness of 0.03 mm (mineral particle diameter > 0.5 mm);

[0051] Minerals to be tested should meet the following characteristics:

[0052] 1. The edge of the mineral part to be tested is in contact with Canada gum;

[0053] 2. The edge of the part of the mineral to be tested is in contact with the known mineral;

[0054] In this embodiment, part of the edge of the mineral to be tested is in contact with the gum, and part of the edge is in contact with the known mineral quartz. By observing the protruding height of the mineral to be tested relative to the gum and quartz, the protrudin...

Embodiment 2

[0060] A method for determining the grade of transparent mineral protrusions, especially a method for quickly and accurately determining the grade of mineral protrusions under an orthogonal polarizing microscope.

[0061] It includes the following steps:

[0062] Find the minerals to be tested under an orthogonal polarizing microscope by grinding medium-fine-grained igneous rock slices with a thickness of 0.03 mm (mineral particle diameter > 0.5 mm);

[0063] Minerals to be tested should meet the following characteristics:

[0064] 1. The edge of the mineral part to be tested is in contact with Canada gum;

[0065] 2. The edge of the part of the mineral to be tested is in contact with the known mineral;

[0066] In this embodiment, two adjacent mineral particles are considered to belong to the same mineral particle from the crystal shape and interference color, but they can be clearly distinguished through the observation of the protrusions.

[0067] Observation under 10x o...

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Abstract

The invention belongs to the field of identification of transparent minerals in rock, and relates to a method and a system for determining the protrusion grade of transparent minerals in rock, and anapplication of the system. The method comprises the following steps: finding a to-be-detected mineral from a rock slice under an orthogonal polarizing microscope; placing the to-be-detected mineral inthe center of a cross wire under orthogonal polarization, and enabling the contact edge of the to-be-detected mineral and Canadian gum to form an angle of 45 DEG with the upper polarization direction; pulling open a lower polariscope to make incident light completely penetrate through the mineral and enter the visual field in the vertical direction, pushing in the lower polariscope, and shieldingtwo thirds of the incident light through the lower polariscope; if the to-be-detected mineral protrusion is higher than the gum, judging that the protrusion is a positive protrusion, if not, judgingthat the protrusion is a negative protrusion; and comparing the to-be-detected mineral with the known mineral by referring to the method, and determining the protrusion grade. According to the identification method provided by the invention, a becker line does not need to be searched; and the operation method is simple, the mineral protrusion grade can be accurately, rapidly and visually determined, the mineral variety is determined, and a basis can be provided for regional geological survey.

Description

technical field [0001] The invention belongs to a method for determining the protrusion grade of transparent minerals in rocks, in particular to a method for determining the protrusion grades of thin rock slices under an orthogonal polarizing microscope, and belongs to the technical field of identification of transparent minerals in rocks. Background technique [0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. [0003] At present, the determination of mineral composition in rocks can be carried out through the identification of transparent minerals under a rock thin-section microscope; the identification of rock light thin-section electronic probes; the mineral composition of clay minerals can be determin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/84
CPCG01N21/84
Inventor 郭嘉
Owner 山东省地质矿产勘查开发局第一地质大队
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