as+originally+deposited+or+formed
81Permian Period — Interval of geologic time, 290–248 million years ago. The last of the six periods of the Paleozoic Era, it follows the Carboniferous Period. During the Permian, the continents joined to form a single supercontinent, Pangea. Hot, dry conditions… …
82Mount Cayley volcanic field — Coordinates: 50°07′13″N 123°17′26″W / 50.12028°N 123.29056°W / 50.12028; 123.29056 …
83geochronology — geochronologic /jee oh kron l oj ik/, geochronological, adj. geochronologist, n. /jee oh kreuh nol euh jee/, n. the chronology of the earth, as based on both absolute and relative methods of age determination. [1890 95; GEO + CHRONOLOGY] * * *… …
84metallurgy — metallurgic, metallurgical, adj. metallurgically, adv. metallurgist /met l err jist/ or, esp. Brit., /meuh tal euhr jist/, n. /met l err jee/ or, esp. Brit., /meuh tal euhr jee/, n. 1. the technique or science of working or heating metals so as… …
85Egyptian religion — Polytheistic belief system of ancient Egypt from the 4th millennium BC to the first centuries AD, including both folk traditions and the court religion. Local deities that sprang up along the Nile Valley had both human and animal form and were… …
86Colorado Plateau — A map of the Colorado Plateau. The …
87Glasgow — GLASGOW, a city, the seat of a university, and a sea port, having separate jurisdiction, locally in the Lower ward of the county of Lanark, and situated in longitude 4° 15 51 (W.), and latitude 55° 52 10 (N.), 23 miles (E. by S.) from Greenock …
88international relations — a branch of political science dealing with the relations between nations. [1970 75] * * * Study of the relations of states with each other and with international organizations and certain subnational entities (e.g., bureaucracies and political… …
89Perth — PERTH, a city, a royal burgh, and anciently the metropolis of the kingdom of Scotland, in the county of Perth, of which it is the capital; comprising the parishes of East Church, Middle Church, St. Paul, and West Church, and the late quoad… …
90arctic — arctically, adv. /ahrk tik/ or, esp. for 7, /ahr tik/, adj. 1. (often cap.) of, pertaining to, or located at or near the North Pole: the arctic region. 2. coming from the North Pole or the arctic region: an arctic wind. 3. characteristic of the… …
