Geology hub
Methods
How geologists test ideas: mapping, sampling, microscopy, geochemistry, and dating—turning observations into measurements.
Subtopics
Geologic mapping
Contacts, units, structures, and why maps are the backbone of geologic interpretation.
Thin sections
Petrography basics: what polarized light reveals about minerals and textures.
XRD & XRF
Mineral ID (XRD) and chemistry (XRF)—what each method measures and when it’s used.
Sampling best practices
Labeling, context notes, contamination avoidance, and ethical collecting.