Perturbation (from Latin: perturbare "to confuse, disorder, disturb", from per- "through" + turbare "disturb, confuse," from turba "turmoil, crowd") is...

that cannot be solved exactly Perturbation (geology), changes in the nature of alluvial deposits over time Perturbation (astronomy), alterations to an...

In mathematics and applied mathematics, perturbation theory comprises methods for finding an approximate solution to a problem, by starting from the exact...

The geology of the Moon (sometimes called selenology, although the latter term can refer more generally to "lunar science") is quite different from that...

"Carbon-Cycle Perturbation in the Middle Jurassic and Accompanying Changes in the Terrestrial Paleoenvironment". The Journal of Geology. 111 (3): 259–276...

The geology of the Canary Islands is dominated by volcanic rock. The Canary Islands, and some seamounts to the north-east, form the Canary Volcanic Province...

The Triassic (/traɪˈæsɪk/ try-ASS-ik; sometimes symbolized 🝈) is a geologic period and system which spans 50.5 million years from the end of the Permian...

covered this part of Laurentia led to a long-held conclusion that this perturbation in the Earth's gravity reflected still ongoing glacial isostatic adjustment...

The Silurian (/sɪˈljʊəri.ən, saɪ-/ sih-LURE-ee-ən, sy-) is a geologic period and system spanning 24.6 million years from the end of the Ordovician Period...

Isotope geochemistry is an aspect of geology based upon the study of natural variations in the relative abundances of isotopes of various elements. Variations...