Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
41 Cards in this Set
- Front
- Back
|
Groups of different minerals pushed together and combined |
Rock |
|
|
An aggregation of one or more minerals and many other mineral materials that have been brought together into a cohesive solid |
Rock |
|
|
Study of rock |
Petrology |
|
|
How does the rocks mainly categorized? |
It is how they are formed |
|
|
Classification of Rocks |
1. Igneous Rock 2. Sedimentary Rock 3. Metamorphic Rock |
|
|
Rocks that are formed from melted rock that has cooled and solidified |
Igneous Rock |
|
|
Term for molten rocks |
Magma |
|
|
Four main type of Igneous Rock |
Obsidian Granite Basalt Andesite Porphyry |
|
|
Two broad categories of Igneous rocks |
1. Intrusive rocks 2. Extrusive rocks |
|
|
Igneous rocks which are formed when magma is intruded into the existing rock of the earth's continental crust |
Intrusive Rock |
|
|
Igneous rocks which are formed when magma is extruded into or close to the surface of the earth's continental or oceanic crust |
Extrusive rock |
|
|
Gray to black volcanic rock. It generally erupts from strato volcanoes as thick lava flows. It can also generate strong explosive eruptions to form pyroclastic flows |
Andesite |
|
|
Hard, black volcanic rock. Less than 1/2 of it's weight is silica. |
Basalt Lava |
|
|
Most often gray but can be dark gray to black and one of the most common rock types associated with enormous Pliniqn-style eruptions |
Dacite Lava |
|
|
Light and porous rock. It forms during explosive eruptions. It is full of holes caused by expanding volcanic gases. |
Pumice |
|
|
Usually black in color, though it can be red or have a greenish tint. It is a dense volcanic glass, usually composed of rhyolite, rich in iron and magnesium. |
Obsidian rock |
|
|
It formed when a lava cools so quickly that crystals do not have time to grow. |
Obsidian rock |
|
|
Light-colored volcanic rock that has a high silica content which makes it very viscous. This prevents gases from causing eruptions to be explosive. |
Rhyolite rock |
|
|
Rocks that formed at the surface of the Earth either in water or on land. |
Sedimentary rock |
|
|
It is layered accumulations of sediments-fragments of rocks, minerals or animal and plant materials. |
Sedimentary rock |
|
|
Made up of rounded pebbles cemented together |
Conglomerate rock |
|
|
Made up of angular peebles cemented together |
Breccia |
|
|
Sand grains cemented together into solid stone |
Sandstone |
|
|
Made up of silt particles cemented together |
Siltstone |
|
|
Similar to siltstone but even with finer grains |
Shale |
|
|
Made when a body of seawater become closed off and evaporates |
Halite rock |
|
|
Evaporate that is made of calcium sulfate that has many forms |
Gypsum |
|
|
Common form of gypsum |
Satin spar and alabaster |
|
|
Made primarily of calcium carbonate or calcite. |
Limestone |
|
|
Limestone that contains the remains of ancient plants or animals in the form of fossils |
Fossiliferous Limestone |
|
|
Microcrystalline sedimentary rock that is silica rich. It has many forms and colors |
Chert |
|
|
Composed of organic matter in the form of plant fragments |
Coal |
|
|
Sometimes sedimentary and igneous rocks are subjected to pressure so intense heat so high that they are completely changed to ________ |
Metamorphic rock |
|
|
Rock that formed deeply buried within earth's crust |
Metamorphic rock |
|
|
Coarse-grained metamorphic rock derived from sandstone |
Quartzite |
|
|
Metamorphic rock that comes from metamorphosed limestone or dolomite |
Marble |
|
|
Fine grain metamorphic rock |
Slate |
|
|
Fined grained metamorphic rock |
Phyllite |
|
|
Coarse grained metamorphic rock |
Schist |
|
|
Medium to coarse grained metamorphic rock |
Gneiss |
|
|
Fundamental concept in geology that describe the transition of rock |
Rock cycle |
