Identification method of neutral volcanic-andesite

An identification method and volcanic rock technology are applied in the identification of neutral volcanic rock-andesite and the field of identification of neutral volcanic rock-andesite, which can solve the problems of complex identification operations, and achieve the effect of simple operation method, strong practicability and high accuracy.

Active Publication Date: 2020-05-22
山东省地质矿产勘查开发局第一地质大队
View PDF7 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The first condition of these methods is that the selected plagioclase crystal to be tested must be a directional cut surface, and a series of optical data such as its refractive index, birefringence, and optical axis angle must be accurately measured, and the ...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Identification method of neutral volcanic-andesite
  • Identification method of neutral volcanic-andesite
  • Identification method of neutral volcanic-andesite

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] A kind of identification method of neutral volcanic rock-andesite, it comprises the following steps:

[0072] The plagioclase to be tested is found under the crossed polarizing microscope by grinding the rock thin section with a thickness of 0.03mm;

[0073] The plagioclase to be tested should meet the following characteristics:

[0074] 1. The number of twin crystal monomers > 2, and the width of the twin crystal monomers is approximately equal, that is, to find a single symmetrical polycrystalline twin crystal plagioclase;

[0075] 4. When the objective lens of the microscope is raised and lowered, the double crystal moves left and right, that is, there is a certain displacement;

[0076] 5. When the twin crystals are parallel to the longitudinal wire of the cross wire, it will show twin crystals.

[0077] Plagioclase to be tested with the above characteristics is easy to find.

[0078] Place the selected plagioclase to be tested at the center of the crosshairs of ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Thicknessaaaaaaaaaa
Login to view more

Abstract

The invention relates to an identification method of neutral volcanic-andesite. The identification method comprises the following steps: finding a to-be-detected plagioclase from a rock slice under anorthogonal polarizing microscope; respectively testing extinction angles of two groups of bicrystal monomers of the plagioclase to be tested; if the difference between extinction angles of the two groups of bicrystal monomers is less than 5 degrees, considering that the section of the plagioclase to be tested is the section of the inverted-T (010) bicrystal junction surface, and taking the average value of the extinction angles of the two groups of bicrystal monomers, namely the maximum extinction angle phi max of the inverted-T (010) section; if the difference between the extinction angles obtained in the two times is greater than 5 degrees, taking the average value of the extinction angles of the two groups of bicrystal monomers as a visual extinction angle phi '; and at the moment, ifthe apparent extinction angle phi' of the meso-clinic stone is smaller than 24 and the bicrystal width c is smaller than 0.029777 mm when the section is beveled into the bicrystal surface, the meso-clinic stone can be determined as the meso-clinic stone, and the rock sample is the neutral volcanic-andesite. Neutral volcanic rock-andesite can be quickly and accurately distinguished from basic volcanic rock-basalt and transition rock-basaltic rock-basaltic rock, and the identification accuracy is high.

Description

technical field [0001] The invention belongs to the field of identification of rock types, and relates to an identification method of neutral volcanic rock-andesite, in particular to a method for identifying neutral volcanic rock-andesite under an orthogonal polarizing microscope. 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] The identification method of neutral volcanic rock-andesite currently used in China: GB / T 17412.1-1998 "Rock Classification and Naming Scheme for Igneous Rocks and Rock Classification and Naming Scheme" - issued by the State Bureau of Quality and Technical Supervision and SY / T 5368-2000 "Identification of Rock Thin Sections" —Based on the People's ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01N21/84
CPCG01N21/84G01N2021/8477
Inventor 郭嘉赵辉
Owner 山东省地质矿产勘查开发局第一地质大队
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap