Geology
ACT Science / Geology
40 Words
20m
a site where large quantities of rock, stone, or minerals are extracted from the Earth's crust for industrial use or construction purposes
The quarry supplied limestone for the construction of the new highway.
View Full Definitionto put blame on someone or something for a mistake or problem
She tends to fault others without considering her own mistakes.
View Full Definitiona type of fine-grained sedimentary rock made from compacted clay or mud particles, known for its ability to split into thin layers
The quarry extracted large quantities of shale for construction purposes.
View Full Definitiona type of dark, fine-grained igneous rock formed from cooled lava, characterized by its dense composition and typically dark gray to black color
The volcanic island was primarily composed of basalt.
View Full Definitiona 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
The trilobite is an index fossil commonly used to date Paleozoic rock layers.
View Full Definitionthe act of entering an area that was previously unoccupied or reserved
The sudden intrusion of tourists changed the quiet of the village.
View Full Definitiona method used to determine the age of rocks and minerals by measuring the decay of radioactive isotopes present in them
View Full Definition(of rock) formed from cooled magma or lava
Igneous rocks form from molten material cooling and solidifying.
View Full Definitioncharacterized by metamorphosis or change in physical form or substance
View Full Definitionrelating to the movement and arrangement of the Earth's crust
Tectonic activity along fault lines can result in earthquakes and volcanic eruptions.
View Full Definitionsmall trout-like silvery marine or freshwater food fishes of cold northern waters
View Full Definitionthe byproduct of smelting ore that forms a glass-like material, often found as a residue in mining and metalworking activities
The old mine was littered with heaps of slag, remnants of the smelting operations that had once thrived there.
View Full Definitionthe 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
The study of fossils from the Mesozoic reveals a diverse range of ancient life forms, including dinosaurs and early mammals.
View Full Definitiona mineral with a greenish hue, commonly found in igneous rocks like basalt and peridotite, known for its high magnesium and iron content
The jeweler crafted a stunning necklace adorned with a centerpiece of olivine, capturing the gemstone's natural brilliance.
View Full Definitiona group of minerals found in igneous and metamorphic rocks, typically dark in color and composed of silica, magnesium, and iron
The volcanic rock was rich in pyroxene, giving it a dark and glossy appearance.
View Full Definitiona 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
The ceramic artist blended feldspar with clay to create durable and beautifully glazed pottery.
View Full Definitiona type of rock formed from clay minerals that have been compressed and hardened over time, creating a dense and often smooth-textured material
The artist displayed a stunning sculpture carved from a single piece of argillite, highlighting its smooth, slate-like texture.
View Full Definitiona scientist who studies the Earth's structure, composition, processes, and history, including rocks, minerals, fossils, and geological phenomena
The geologist analyzed the rock formations to determine their geological age and origin.
View Full Definitiona scientist who specializes in the study of earthquakes and seismic waves, investigating their causes, effects, and patterns
The seismologist monitors seismic activity to assess earthquake risks in the region.
View Full Definitionthe point on the surface of the earth vertically above the focus of an earthquake where its effects are felt most strongly
The epicenter of the earthquake was located just outside the city, causing widespread damage to buildings and infrastructure.
View Full Definitionan earthquake caused by underground movement or volcanic activity
The region experienced a small temblor, causing brief vibrations but no significant damage.
View Full Definitionthe sudden outburst of lava and steam from a volcanic mountain
The volcanic eruption sent ash and lava flowing down the mountainside.
View Full Definitiona type of broad, gently sloping volcano formed by the eruption of low-viscosity basaltic lava
View Full Definitiona branch of geology that focuses on the study of volcanoes, volcanic activity, and related phenomena
Scientists in volcanology study lava flows and volcanic ash.
View Full Definitionliquid or semi-liquid rock that exists under the earth's surface with an extremely hot temperature
Magma rises through cracks in the crust, fueling volcanic eruptions.
View Full Definitiona large, basin-shaped volcanic crater formed by the collapse of a volcano after a massive eruption
The Santorini Caldera in the Aegean Sea is a stunning example of a caldera filled with seawater.
View Full Definitiona tough type of rock that starts as sandstone but changes under intense heat and pressure underground, becoming very hard and durable
The mountain climbers marveled at the sheer cliffs of quartzite, their surfaces glinting in the sunlight.
View Full Definitionparticles of solid material that settle at the bottom of a liquid
After the river flooded, a layer of sediment covered the riverbed.
View Full Definitiona 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
Hiking along the trail, we encountered an impressive outcrop of sedimentary rock, revealing layers formed over millions of years.
View Full Definitionconnected with or produced by the heat inside the earth
Geothermal energy is harnessed by tapping into hot underground reservoirs to generate electricity.
View Full Definitiona fixed bathroom sink with running water, used for washing hands and face
She washed her hands in the basin after coming in from the garden.
View Full Definitionthe thick, buoyant part of the Earth's crust that forms the continents, composed mainly of granitic rocks and less dense than oceanic crust
View Full Definitiona landmass that existed in the geological past
View Full Definitiona geological process where one tectonic plate moves under another and sinks into the Earth's mantle
The subduction of the Pacific Plate beneath the North American Plate has created the Cascadia Subduction Zone, known for its seismic activity.
View Full Definitiona loose sleeveless cloak worn as an outer garment, usually fastened at the neck and falling over the shoulders and back
View Full Definitiona hard gray or white rock that contains calcium and is used for making cement or as a building material
View Full Definitiona 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
The pottery artist used kaolinite clay to create delicate porcelain vases, admired for their smooth texture and fine detail.
View Full Definition