After a long history of building materials development,many types of building materials have not disappeared in the long history.On the contrary,after years of development,basalt stone has become more popular among people.The editor will introduce basalt stone analysis in geological exploration.
The description of basalt stones is an important task in the field geological records of magmatic rocks.It is also of great significance for indoor identification.The description should be complete,accurate,and concise,allowing readers to have a clear impression of the rock after reading the description.This requires careful observation,standardized language description,accurate use of geological terminology,and adherence to the usual order of observation.
The main content and sequence of field magmatic rock description are:color,structure,texture,types and contents of main and secondary minerals,secondary changes,occurrence,etc.
When describing colors,it is important to distinguish between primary and secondary colors and describe them separately.Pay attention to the color changes of basalt stones near the joint or contact zone caused by groundwater leaching or assimilation pollution from precipitation and other processes
When describing the structure of basalt stone,attention should be paid to separating the phenocryst structure from the matrix structure and estimating the content of different minerals in phenocrysts and phenocrysts.
The above is the analysis of basalt stones in geological surveys summarized by the editor.When we analyze,we mainly look at the characteristics,content,and state of minerals in different environments.When testing,we must record the origin in detail so that the testing can be more accurate.