| LC control no. | sh 85119339 |
|---|---|
| LC classification | GC87.6.S4 |
| Topical heading | Seamounts |
| Variant(s) | Guyots Sea mounts Seapeaks Submarine mountains Submerged mountains Tablemounts Undersea mountains Underwater mountains |
| See also | Mountains Submarine topography |
| Found in | SeamountsOnline website, May 23, 2005: About Seamounts (Seamounts are undersea peaks in the ocean floor - "mountains" rising from the bottom of the sea that do not break the water's surface) Submarine volcanism, via Monterey Bay Aquarium Research Institute website, May 23, 2005 (seamounts (submerged mountains)) Seamounts--hotspots of marine life, via International Council for the Exploration of the Sea website, May 23, 2005 (Seamounts are undersea mountains (usually of volcanic origin) rising from the seafloor and peaking below sea level. Underwater mountains of heights above 1000 m are considered to be seamounts, those between 500-1000 m as knolls, and those below 500 m as hills. A seamount tall enough to break the sea surface is called an oceanic island, e.g., the islands of Hawaii, the Azores and Bermuda were all underwater seamounts at some point in the past.) Standardization of undersea feature names, 2001. English/French version, 3rd ed., via WWW (PDF), viewed May 23, 2005: p. 2-25 (Seamount(s). A discrete (or group of) large isolated elevation(s), greater than 1,000m in relief above the sea floor, characteristically of conical form. See also Guyot.) p. 2-21 (Guyot. A seamount having a comparatively smooth flat top. Also called tablemount. See also Seamount.) Glossary of geology, 1997 (seamount: An elevation of the sea floor, 1000 m or higher, either flat-topped (called a guyot) or peaked (called a seapeak). Seamounts may be either discrete, arranged in a linear or random grouping, or connected at their bases and aligned along a ridge or rise.) The Amer. Heritage dict. of the Engl. lang., c2000 (seamount: An underwater mountain rising from the ocean floor and having a peaked or flat-topped summit below the surface of the sea; guyot: A flat-topped submarine mountain) |
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