Earth Science, Geologic Time & Fossils

Seymouria

fossil animal genus

Scorodite

mineral

Pumice

volcanic glass

Mineral Processing

metallurgy

Ferrel, William

American meteorologist

Selenite

mineral

Nappe

geology

Iselin, Columbus O’D.

American oceanographer

Annabergite

mineral

Trochonema

fossil gastropod genus

Internal Wave

hydrology

Scrope, George Julius Poulett

British geologist

Cloud Whitening

geoengineering

Burgess Shale

geological formation, British Columbia, Canada

Siltstone

rock

Shoemaker, Gene

American astrogeologist