sedimentation time
121Methane clathrate — Burning ice . Methane, released by heating, burns; water drips. Inset: clathrate structure (University of Göttingen, GZG. Abt. Kristallographie). Source: United States Geological Survey. Methane clathrate, also called methane hydrate,… …
122Oak Ridges Moraine — The Oak Ridges Moraine is an ecologically important geological landform in the Mixedwood Plains of south central Ontario, Canada. The moraine covers a geographic area of 1,900 square kilometres (730 sq mi) between Caledon and Rice Lake …
123Cuicuilco — Archaeological Site Map of the Cuicuilco archaeological Name: Cuicuilco Location Mexico City, Federal District …
124Adelaide Geosyncline — The Adelaide Geosyncline (also known as Adelaide Rift Complex) is a major geological province in central South Australia. It stretches from the northernmost parts of the Flinders Ranges, narrowing at the Fleurieu Peninsula and extending into… …
125Aluízio Licínio de Miranda Barbosa — (born in Alto Rio Doce, Minas Gerais, Brazil) usually known as Professor Licínio is a retired geologist. He is Emeritus Professor of the Institute of Geociências of the Universidade Federal de Minas Gerais (UFMG). Early careerHe graduated as a… …
126cyclothem — ▪ geology complex, repetitive stratigraphic succession of marine and nonmarine strata that are indicative of cyclic depositional regimes. Ideal cyclothem successions are rare, and reconstructions of generalized sequences result from the… …
127ionium-thorium dating — ▪ physics method of establishing the time of origin of marine sediments according to the amount of ionium and thorium they contain. Because uranium compounds are soluble in seawater, while thorium compounds are quite insoluble, the… …
128Centrifuge — This article is about the scientific device. For the Christian camp, see Centrifuge (camps). For spin direction in quantum mechanics, see Spin (physics)#Spin direction. A laboratory tabletop centrifuge. A centrifuge is a piece of equipment,… …
