domal structure
11Precambrian 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… …
12Mantle plume — A superplume generated by cooling processes in the mantle.[1] A mantle plume is a hypothetical thermal diapir of abnormally hot rock that nucleates at the core mantle boundary and rises through the Earth s mantle. Such plumes were invoked in 1971 …
13salt dome — Geol. a domelike rock structure that is formed beneath the earth s surface by the upward movement of a mass of salt, may reach thousands of feet in vertical extent, and is more or less circular in plan: often associated with oil and gas pools. Cf …
14volcano — /vol kay noh/, n., pl. volcanoes, volcanos. 1. a vent in the earth s crust through which lava, steam, ashes, etc., are expelled, either continuously or at irregular intervals. 2. a mountain or hill, usually having a cuplike crater at the summit,… …
15dome — I. noun Etymology: French, Italian, & Latin; French dôme dome, cathedral, from Italian duomo cathedral, from Medieval Latin domus church, from Latin, house; akin to Greek domos house, Sanskrit dam Date: 1513 1. archaic a stately building ;… …
16Olivenite — Olivenite, Špania Dolina, Slovakia General Category Arsenate minerals …
17Ceraunius Fossae — MOLA colorized image of Ceraunius Fossae region. The fractured terrain consists of two large patches of north south trending faults surrounded by lava flows. The Alba Mons volcano is the large, circular feature at top …
18salt dome — salt′ dome n. gel a domal geologic structure formed by upward movement of a salt mass: associated with pools of oil and gas • Etymology: 1905–10 …
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