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岩石の層
a rock formation
溶岩の固まり
a mass of molten rock
石炭層
a coal-bed
層灰岩という,層状の岩石
a type of rock, called tuffite
地中の岩石層
of the earth, a rock layer
石積みの層
a layer of masonry
岩は層をなす
The rock stratifies
沈積岩という岩石
a type of rock called a sedimentary rock
枕状溶岩という溶岩
a type of lava, called pillow lava
潜岩
submerged rocks
粘板岩という岩石
rock called slate
小石の層
a layer of scree
多層の岩石
superimposed rocks
粘土質の岩石
argillaceous rocks
塩基性岩という岩石
a type of rock called a {basic rock}
頁岩という岩石
a rock called shale
基底礫岩という礫岩層
a conglomerate that forms the bottom layer of a sediment, called basal conglomerate
深成岩という岩石
a rock called pluton
水成岩という岩石
rocks called aqueous rocks
結晶岩
crystalline rock
皿状の溶岩片
a piece of lava with a flat bottom
超塩基性岩という岩石
a type of rock called ultrabasic rocks
凝灰岩という岩石
a type of rock called tuff
堆積岩という岩石
rock called sedimentary rock
粗面岩という岩石
a kind of rock called trachyte
岩の突端
a tip of a rock
塊状溶岩という形態の溶岩
lava called {slag-like lava}
砕屑岩という岩石
rock called clastic rock
溶岩の大量流出
a river of lava
泥岩という岩石
a shale rock called mudstone
溶岩層