subsidence crater
41lake — lake1 /layk/, n. 1. a body of fresh or salt water of considerable size, surrounded by land. 2. any similar body or pool of other liquid, as oil. 3. (go) jump in the lake, (used as an exclamation of dismissal or impatience.) [bef. 1000; ME lak(e) …
42Lake — /layk/, n. Simon, 1866 1945, U.S. engineer and naval architect. * * * I Relatively large body of slow moving or standing water that occupies an inland basin. Lakes are most abundant in high northern latitudes and in mountain regions, particularly …
43Sidoarjo mud flow — The Sidoarjo mud flow or Lapindo mud, also informally abbreviated as Lusi , a contraction of Lumpur Sidoarjo ( lumpur is the Indonesian word for mud), is a since May 2006 ongoing eruption of gas and mud in the subdistrict of Porong, Sidoarjo in… …
44Magellan (spacecraft) — Magellan Artist s depiction of Magellan at Venus Operator NASA / JPL Major contractors Martin Marietta / Hughes Aircraft …
45Yellowstone National Park — Yellowstone redirects here. For other uses, see Yellowstone (disambiguation). Yellowstone National Park Grand Canyon of Yellowstone Location …
46Mare Nectaris — Coordinates …
47Eldfell — is a cinder cone volcano just over 200 metres (650 ft) high on the Icelandic island of Heimaey. It formed in a volcanic eruption which began without warning just outside the town of Heimaey on 23 January 1973. Its name means Mountain of Fire in… …
48Mud volcano — A series of mud volcanoes in Gobustan, Azerbaijan …
49Depression (geology) — A depression in geology is a landform sunken or depressed below the surrounding area. Depressions may be formed by various mechanisms. Structural or tectonic related: Structural basin: A circular, syncline like depression; a region of tectonic… …
50Columbia River Basalt Group — The Columbia River Basalt Group (including the Steen and Picture Gorge basalts) extends over portions of five states. The Columbia River Basalt Group is a large igneous province that lies across parts of the Western United States . It is found in …
