US 12,412,006 B2
Large-scale denudation depth thematic mapping method
Wen Chen, Beijing (CN); Jingbo Sun, Beijing (CN); Bin Zhang, Beijing (CN); Shuangfeng Zhao, Beijing (CN); Pengfei Tian, Beijing (CN); Ruxin Ding, Beijing (CN); Ze Shen, Beijing (CN); Wen Zhang, Beijing (CN); Zhi Li, Beijing (CN); and Qiuyi Du, Beijing (CN)
Assigned to INSTITUTE OF GEOLOGY, CHINESE ACADEMY OF GEOLOGICAL SCIENCES, Beijing (CN)
Filed by Institute Of Geology, Chinese Academy Of Geological Sciences, Beijing (CN)
Filed on Aug. 19, 2024, as Appl. No. 18/808,249.
Claims priority of application No. 202311174354.3 (CN), filed on Sep. 13, 2023.
Prior Publication US 2025/0086352 A1, Mar. 13, 2025
Int. Cl. G06F 30/20 (2020.01)
CPC G06F 30/20 (2020.01) 8 Claims
OG exemplary drawing
 
1. A large-scale denudation depth thematic mapping method, comprising:
creating a rule for arranging field work points and a field work route in a research area and creating a sampling rule for sampling at the field work points;
creating a field observation and recording rule suitable for thermochronology research and formulating a mineral processing rule;
analyzing target mineral selected at each of the field work points by using a thermochronology research method to obtain basic analysis data;
inputting the basic analysis data into an improved Low-Temperature Thermochronology (Low-T Thermo) software to perform thermal evolution history modeling and denudation depth calculation, so as to obtain a denudation depth of each of the field work points; wherein the improved Low-T Thermo software is obtained by incorporating Ar-Ar dating results of potassium feldspar, plagioclase and amphibole as modeling parameters on a basis of a traditional Low-T Thermo software;
drawing a denudation depth isopleth map of the research area according to the denudation depth at each of the field work points; and setting a 1:50,000 or 1:200,000 standard regional geological map of the research area as a base map, superimposing the base map and the denudation depth isopleth map to obtain a denudation depth map of the research area;
wherein the analyzing target mineral selected at each of the field work points by using a thermochronology research method to obtain basic analysis data comprises:
performing zircon, apatite (U-Th)/He dating, apatite fission track dating, potassium-containing silicate mineral Ar-Ar dating, zircon U-Pb dating and whole rock composition analysis on the target mineral selected at the field work points to obtain the basic analysis data; wherein the basic analysis data comprises thermal chronological analysis data and composition analysis data of the target mineral at each of the field work points.