เปรียบเทียบวิธี

	การสำรวจธรณีวิทยา	การวิเคราะห์ทางปิโตรกราฟี
สาขาวิชา	ธรณีศาสตร์	ธรณีศาสตร์
ตระกูล	Process / pipeline	Process / pipeline
ปีกำเนิด	1799	1858
ผู้ริเริ่ม	William Smith	Henry Clifton Sorby
ประเภท	regional geological documentation pipeline	compositional characterization pipeline
แหล่งต้นตำรับ	Compton, R. R. (1962). Manual of Field Geology. John Wiley & Sons.	Tucker, M. E. (2003). Sedimentary Rocks in the Field: A Color Guide (3rd ed.). John Wiley & Sons.
ชื่อเรียกอื่น	field mapping, geological surveying, lithostratigraphic mapping	microscopy analysis, thin section analysis, modal composition determination
ที่เกี่ยวข้อง	4	5
สรุป	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.	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.