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单词 θ4913
释义
the world > the earth > structure of the earth > structural features > volcanic formations > [noun] > lava formations > plug (4)
neck1876

Geology. More fully volcanic neck. A column of solidified igneous rock or consolidated rock fragments filling a volcanic vent, esp. when exposed…

plug1882

Geology. A cylindrical mass of solidified lava formed in the vent of a volcano. Also volcanic plug. Cf. neck, n.1 7c.

spine1903

A tall mass of lava projecting upwards from the mouth of a volcano.

tholoid1912

A dome-shaped, steep-sided extrusion of hardened lava plugging the vent of a volcano.

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更新时间:2025/1/24 13:46:28