ACT 科学 - Geology

a site where large quantities of rock, stone, or minerals are extracted from the Earth's crust for industrial use or construction purposes

採石場, 石材採取場

a fracture or zone of fractures between two blocks of rock, along which there has been significant displacement due to tectonic forces

断層, 破砕帯

solid rock beneath surface materials, forming the Earth's crust foundation

基盤岩, 母岩

a type of fine-grained sedimentary rock made from compacted clay or mud particles, known for its ability to split into thin layers

頁岩

a type of dark, fine-grained igneous rock formed from cooled lava, characterized by its dense composition and typically dark gray to black color

バサルト

a durable and visually appealing natural rock used for countertops, flooring, and other architectural applications

花崗岩, 天然の花崗岩

a fossilized organism that is useful for dating and correlating the strata in which it is found, typically indicative of a particular time period in Earth's geological history

指標化石, インデックス化石

(geology) the injection of magma into existing rock formations underground

侵入, マグマの注入

a method used to determine the age of rocks and minerals by measuring the decay of radioactive isotopes present in them

放射線年代測定, 放射性同位体による年代測定法

(of rock) formed from cooled magma or lava

火成の, マグマの

related to rocks transformed by intense heat, pressure, or chemical processes, altering their mineral composition and texture

変成岩の, 変成に関連する

relating to the movement and arrangement of the Earth's crust

テクトニック

to extract metal from its ore by heating and melting it in a furnace

溶解する, 冶金する

the byproduct of smelting ore that forms a glass-like material, often found as a residue in mining and metalworking activities

スラグ, ろう

the period of time from about 252 to 66 million years ago, characterized by the dominance of dinosaurs and the gradual breakup of the supercontinent Pangaea

中生代

a mineral with a greenish hue, commonly found in igneous rocks like basalt and peridotite, known for its high magnesium and iron content

オリビン, 鉱物オリビン

a group of minerals found in igneous and metamorphic rocks, typically dark in color and composed of silica, magnesium, and iron

輝石

a group of minerals that are the most abundant components in the Earth's crust, known for their hardness and varied colors, often used in ceramics and glassmaking

長石

a type of rock formed from clay minerals that have been compressed and hardened over time, creating a dense and often smooth-textured material

アーギライト

a scientist who studies the Earth's structure, composition, processes, and history, including rocks, minerals, fossils, and geological phenomena

地質学者

a scientist who specializes in the study of earthquakes and seismic waves, investigating their causes, effects, and patterns

地震学者

the point on the surface of the earth vertically above the focus of an earthquake where its effects are felt most strongly

震央

an earthquake caused by underground movement or volcanic activity

震動, 地震

a small or slight earthquake

震動, テレム

the sudden outburst of lava and steam from a volcanic mountain

噴火, 発火

a type of broad, gently sloping volcano formed by the eruption of low-viscosity basaltic lava

盾状火山, シールド火山

a branch of geology that focuses on the study of volcanoes, volcanic activity, and related phenomena

火山学

liquid or semi-liquid rock that exists under the earth's surface with an extremely hot temperature

マグマ

a large, basin-shaped volcanic crater formed by the collapse of a volcano after a massive eruption

カルデラ, 火山カルデラ

a tough type of rock that starts as sandstone but changes under intense heat and pressure underground, becoming very hard and durable

クォーツァイト

particles of rock, minerals, or organic materials that have been transported by wind, water, or ice, and deposited in layers on the Earth's surface

沈殿物, 堆積物

a visible exposure of rock or geological strata at the Earth's surface, often occurring on hillsides, cliffs, or other elevated areas, providing insight into the underlying geological structure

露頭, 岩石露出

connected with or produced by the heat inside the earth

地熱の

a large, bowl-shaped depression or low-lying area on the Earth's surface, typically surrounded by higher landforms and often filled with sedimentary deposits

盆地, 凹地

the thick, buoyant part of the Earth's crust that forms the continents, composed mainly of granitic rocks and less dense than oceanic crust

大陸地殻, コンチネンタル地殻

a landmass that existed in the geological past

古大陸, 古い大陸

a geological process where one tectonic plate moves under another and sinks into the Earth's mantle

沈み込み, テクトニックサブダクション

the region of the Earth's interior, lying beneath the crust and extending to the outer core, composed of solid rock that can deform and flow over geological time scales

マントル

a hard gray or white rock that contains calcium and is used for making cement or as a building material

石灰岩, 灰色岩

a soft, white clay mineral formed from the weathering of aluminum-rich rocks, used widely in ceramics, paper production, and as a filler in some medications

カオリン