เปรียบเทียบวิธี

	การวิเคราะห์ทางปิโตรกราฟี	การสำรวจธรณีวิทยา
สาขาวิชา	ธรณีศาสตร์	ธรณีศาสตร์
ตระกูล	Process / pipeline	Process / pipeline
ปีกำเนิด	1858	1799
ผู้ริเริ่ม	Henry Clifton Sorby	William Smith
ประเภท	compositional characterization pipeline	regional geological documentation pipeline
แหล่งต้นตำรับ	Tucker, M. E. (2003). Sedimentary Rocks in the Field: A Color Guide (3rd ed.). John Wiley & Sons.	Compton, R. R. (1962). Manual of Field Geology. John Wiley & Sons.
ชื่อเรียกอื่น	microscopy analysis, thin section analysis, modal composition determination	field mapping, geological surveying, lithostratigraphic mapping
ที่เกี่ยวข้อง	5	4
สรุป	Petrographic analysis is the microscopic examination of rock thin sections to determine mineral composition, grain size, texture, and diagenetic alteration. Pioneered by Sorby in 1858, this method remains the gold standard for understanding lithology and has evolved to include quantitative image analysis and cathodoluminescence. Petrographic data anchor well-log interpretation, validate seismic velocity models, and constrain paleoenvironmental and diagenetic histories.	Geologic mapping is the systematic observation and documentation of rock types, structures, and relationships exposed on the land surface. Pioneered by William Smith in 1799, this foundational field method remains essential for understanding subsurface geology, economic geology, hazard assessment, and paleoenvironmental reconstruction. Modern mapping integrates field observations with satellite imagery, digital logs, and GIS technology to create comprehensive three-dimensional geological frameworks.