flowtop

English

flow +‎ top

flowtop (plural flowtops)

(geology) The solid crust on a moving lava flow.
- 2007 September 21, Jaeger et al., "Athabasca Valles, Mars: A Lava-Draped Channel System" in Science 317(5845), page 1710 :
  they formed as gas vented from fixed sources at depth, ripping continuous openings through the moving flowtop.

单词	flowtop
释义	flowtop English Etymology flow +‎ top Pronunciation (US) IPA^(key): ˈfloʊtɑp Noun flowtop (plural flowtops) (geology) The solid crust on a moving lava flow. 2007 September 21, Jaeger et al., "Athabasca Valles, Mars: A Lava-Draped Channel System" in Science 317(5845), page 1710 : they formed as gas vented from fixed sources at depth, ripping continuous openings through the moving flowtop.
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