大洋型地殼

oceanic crust (geology)

see 大夫[dai4 fu5]

big; large; great / older (than another person) / eldest (as in 大姐[da4 jie3]) / greatly; freely; fully / (dialect) father / (dialect) uncle (father's brother)

ocean / (old) silver dollar

ocean / vast / foreign / silver dollar or coin

mold / type / style / model

-ly / structural particle: used before a verb or adjective, linking it to preceding modifying adverbial adjunct

earth / ground / field / place / land / CL:片[pian4]

the Earth's crust

shell / carapace / crust (earth's crust etc) / also pr. [ke2]