high-temperature shale oil
31Superior multimineral process — McDowell–Wellman process Process type Chemical Industrial sector(s) Chemical industry oil industry Feedstock oil shale Product(s) shale oil Leadi …
32Pyridine — Pyridine …
33Fort Worth, Texas — Fort Worth   City   City of Fort Worth Montage of Fort Worth …
34river — river1 riverless, adj. riverlike, adj. /riv euhr/, n. 1. a natural stream of water of fairly large size flowing in a definite course or channel or series of diverging and converging channels. 2. a similar stream of something other than water: a… …
35Estonia — /e stoh nee euh, e stohn yeuh/, n. a republic in N Europe, on the Baltic, S of the Gulf of Finland: an independent republic 1918 40; annexed by the Soviet Union 1940; regained independence 1991. 1,444,721; 17,413 sq. mi. (45,100 sq. km). Cap.:… …
36Coal — Sedimentary Rock Anthracite coal Composition Primary carbon Secondary hydrogen, sulfur …
37Hydrocarbon exploration — Onshore Drilling Rig Hydrocarbon exploration (or oil and gas exploration) is the search by petroleum geologists and geophysicists for hydrocarbon deposits beneath the Earth s surface, such as oil and natural gas. Oil and gas exploration are… …
38Precambrian time — Interval of geologic time from с 3. 8 billion years ago, the age of the oldest known rocks, to 544 million years ago, the beginning of the Cambrian Period. This interval represents more than 80% of the geologic record and thus provides important… …
39mining — /muy ning/, n. 1. the act, process, or industry of extracting ores, coal, etc., from mines. 2. the laying of explosive mines. [1250 1300; ME: undermining (walls in an attack); see MINE2, ING1] * * * I Excavation of materials from the Earth s… …
40Radioactive waste — 2007 ISO radioactivity danger logo, designed in part for long term radioactive waste depositories which might survive into a far future time in which all knowledge of the meaning of present common radiation danger symbols and signs has been lost… …
