“atoll”的概念、定义、翻译、参考文献-科学参考

atoll

Geology and Earth Sciences

Ring-shaped organic reef that encloses or almost encloses a lagoon, and which is surrounded by the open sea. The reef may be built of coral and/or calcareous algae. An atoll is built on an existing structure such as an extinct, submerged volcano.

Geography

A coral reef, ring- or horseshoe-shaped, enclosing a tropical lagoon. Most of the world’s atolls are found in the Indian and Pacific oceans, and are said to be sensitive to fluctuations in relative sea level—although Woodruffe et al. (1999) Marine Geol. 160, 1, in a study of West Island, Cocos, dispute this assumption. Single colony, semicircular corals (microatolls) grow to a level constrained by exposure at low spring tides (Spencer and Viles (2002) Geomorph. 48, 1–3).

单词	atoll
释义	atoll Geology and Earth Sciences Ring-shaped organic reef that encloses or almost encloses a lagoon, and which is surrounded by the open sea. The reef may be built of coral and/or calcareous algae. An atoll is built on an existing structure such as an extinct, submerged volcano. Geography A coral reef, ring- or horseshoe-shaped, enclosing a tropical lagoon. Most of the world’s atolls are found in the Indian and Pacific oceans, and are said to be sensitive to fluctuations in relative sea level—although Woodruffe et al. (1999) Marine Geol. 160, 1, in a study of West Island, Cocos, dispute this assumption. Single colony, semicircular corals (microatolls) grow to a level constrained by exposure at low spring tides (Spencer and Viles (2002) Geomorph. 48, 1–3).
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