Method for calculating formation temperature of mineral based on chlorite spectrum

A method for calculating a formation temperature of a mineral based on a chlorite spectrum, comprising the following steps:

• S1, collecting chlorite samples, and recording characteristic data of each chlorite sample;
• S2, conducting short-wave infrared spectroscopy for each chlorite sample to obtain a Fe—OH wavelength value of each chlorite sample;
• S3, with an absorption peak value at a Fe—OH wavelength of chlorite as a threshold value, respectively calculating a formation temperature (T) of the chlorite sample and contents of major elements in the chlorite sample when the Fe—OH wavelength value is larger than or no larger than the absorption peak value;
• and
• S4, according to the formation temperature (T) and the contents of major elements obtained in the step S3, determining a formation environment and a category of a corresponding chlorite sample;
• when 200° C.≤T=300° C., determining that the chlorite sample is formed in a medium-high temperature environment, and when 100° C.<T<200° C., determining that the chlorite sample is formed in a medium-low temperature environment.