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【地質】 (a) tuff.
読み方:ぎょうかいがん
ぎっしり詰まった火山灰から成る硬い火山岩
(hard volcanic rock composed of compacted volcanic ash)
読み方 ギョウカイガン
tuff
変成岩
metamorphic rocks
凝灰岩という岩石
a type of rock called tuff
石質砂岩
lithic sandstone
泥灰岩という岩石
a rock, called marlstone
沈積岩という岩石
a type of rock called a sedimentary rock
凝灰角礫岩という岩石
a kind of rock called tuff breccia
珪岩という岩石
a rock called quartzite
蛇灰岩という岩石
a rock called ophicalcite
花崗片麻岩という岩石
a rock called granite-gneiss
珪板岩という岩石
a black siliceous stone formerly used to test the purity of gold and silver, called a Lydian stone
角閃片麻岩という岩石
a rock called {amphibole-gneiss}
頁岩という岩石
a rock called shale
粗面岩という岩石
a kind of rock called trachyte
白亜という岩石
a type of limestone rock, called chalk
砕屑岩という岩石
rock called clastic rock
片麻岩という岩石
a rock, called gneiss
角礫岩という岩石
a rock called breccia
粘板岩という岩石
rock called slate
紫雲石という岩石
a stone having a cloudy purple color
泥岩という岩石
a shale rock called mudstone
礫岩という岩石
rock called a conglomerate
菊花石という岩石
a color called yellow stone
変成岩という岩石
a stone called {metamorphic rock}
蛇紋岩という岩石
a rock called serpentinite
酸性岩という岩石
a rock called {acid rock}
深成岩という岩石
a rock called pluton
集塊岩という岩石
a rock called agglomerate
火山岩
volcanic rock
混成岩という岩石
a rock called migmatite
斑岩という岩石
a rock called porphyry
凝灰岩