Geology
Do you ever wonder why one river is straight and flows quickly while another meanders along curves and seems to be slow and peaceful, or how the mountains were formed? Geology is the study of the earth, its materials, and the processes acting upon them. It includes the study of rocks and minerals; and their formation, weathering, and metamorphosis. So, when you need an answer to a question about rivers, mountains, volcanoes, rock cycles, plate tectonics, or other geological aspects, our Geology category is the place to ask it.
Total questions 148600
Sudont [0]
wrote the first answer to What scientist studies layers of sedimentary rock formations 26 May 2012 20:55
At32296 (supervisor) [113]
removed Minerals in Italy from Geology 26 May 2012 20:26
Jponbac (supervisor) [754]
removed the answer of When was the first crystal found 26 May 2012 19:11
Fish247 (supervisor) [153]
changed the question Something interesting about an obsidian rock to What is something interesting about an obsidian rock 26 May 2012 18:59
Tornadoes actually generally form over land. Hurricanes form over the ocean because the amount of moisture they need only occurs...
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A transform boundary. This means that the two tectonic plates slide past one another.
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Pumice, a volcanic rock that is like a silicate version of Styrofoam, will float on water, if it is of high enough air content...
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Rocks' colors vary. Every rock has a different color. The rock cycle contains every rock, which can be dark or light.
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I believe that Flint and Chert are two rocks formed by stress deformation, however I apologise for the last one escapes me.
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Vesicles.
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Oceanic - oceanic divergent boundary and Continental - oceanic divergent boundary.
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Divergent, convergent and transform.
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This is known as the crust.
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This is known as a joint.
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Under extreme pressure and extreme heat, diamonds are formed in the earth's mantle from carbon.
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The outer core.
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Lithification is the process of sediments becoming sedimentary rock, covering the processes of compaction and cementation.
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3 main layers, crust (lithosphere), mantle and core ^ although that is technically mostly correct, The Mantle is divided into 3...
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The root systems of plants can penetrate cracks and, by growing, break the rock. The leaves of trees can accumulate on the forest...
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Any relatively hard and durable rock is suitable for road construction, eg. basalt, granite, or limestone.
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Quartz is a mineral, chemical formula SiO2.
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Lava on the earth's surface will cool quickly.
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Erosion occurs because a river flows through it (it is a feature of river erosion), and also the fact that it has some narrow...
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Its Non-ferrous.Platinum is non ferrous, as it does not contain any iron
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Atlantic plate , pacific plate and north American plate
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Precipitated hydrothermal minerals.
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A magnifying glass...also, reasoning and knowledge. There are four principals regarding relative age of rock beds. The scientist...
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A fossil is the preserved traces of a living organism from the past (plant, animal, etc.). It is generally preserved because of...
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Fire was among the first sources of light and heat on Earth's surface (apart from the Sun and lightning). Fire, however, is an...
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Diamond are only scratched by diamonds.
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rock (an aggregate of minerals or organic matter) that has the attribute rare (unusual, infrequent)
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Mass wasting / solifluction / creep.
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answ2. Yes indeed. A rock may fall down a mountain, or be moved by a glacier or river. In some US deserts there are small rocks...
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I know one of them...Sedimentary hope i helped... =)All 3 are igneous, sedimentary, and metamorphic.
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Depends on what kind of geological activity you are referring to, as for volcanic activity the ring of fire in the pacific ocean...
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erosion...sometimes it can be from water rushing past over time, other times it can be from compression or.
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No. Near the surface.
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Permeable rocks are rocks that allow water to seep through/into them, impermeable do not.
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Rock crushing is a common industrial need, particularly in mineral processing. There are several machine types for the job, and...
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Sedimentary rock as the majority of the surface of the Earth is covered by veneers of it. Shale is the most common form of...
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Scotland gets more snow because it is farther away from the sun. This is not the only reason though...
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Seismic waves.
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You can use electrolysis. This means passing electricity through a substance. Doing this with water breaks it down into what it...
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weapons, tools and shelter
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Clastic sedimentary rock, such as shale and sandstone.
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Despite the fact that there certainly are individual atoms, perhaps even large groups of them, that are older than 4.567 billion...
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The Moh's scale is defined as: Talc - 1 Gypsum - 2 Calcite - 3 Fluorite - 4 Apatite - 5 Orthoclase feldspar - 6 Quartz - 7...
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It is gold colored.
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Yes
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it hurts to walk on both, and they are both lava. AA is a rough jagged surface, while I have no idea about blocky lava.
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As metamorphic rocks form under large pressure and temperature, the original composition of the rock is largely lost. Take for...
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A metamorphic rock.
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Clastic sedimentary rocks and Cataclasites (a form of metamorphic rock) are formed from broken rocks.
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Hey, I'm doing a project on the 7 wonders of GA, and I found out that Limestone is found in Providence Canyon. Unfortunately,...
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1 is that gravity can push water downhill (rivers) and make valleys or canyons.
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Flint is often referred to as a "Chemical Sedimentary" rock. Commonly formed when solid materials are dissolved by other means...
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um idk...
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We get weathered by being on or near the surface and exposed to environments different than we were formed in.
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A divergent plate boundary (ridge)
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A diamond is carbon. Apparently, the carbon group which includes diamonds is a subclass: native non-metals and semi-metals. You...
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When water freezes, it expands (its volume increases) by 9%. So, when water is collected in a crack of a rock and it freezes, the...
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Rock crystal generally refers to large euhedral crystals of quartz, the mineral.
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Magnetite has a hardness of 5 to 6 on the Mohs scale.
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Yes. Igneous rocks (with the exception of volcanic glass) are made entirely of mineral crystals.Absolutely... Yes! Igneous rocks...
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Not as far as I know. The two closest titles I could find to that were:Rock with Your Cork Out (2008)Barbie and the Rockers: Out...
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Petrification occurs when body parts of the organism are replaced by minerals dissolved in ground water. For example, a buried...
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youthful river: erodes deeper than widerit flows quickly narrow and straightfew tributaries mature river:erodes wider than deeper...
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Barrier islands were formed about 18,000 years ago when the last Ice Age ended. As the glaciers melted and receded, the sea...
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Many ways, really. For example, a continental plate may be submerging underneath another continental plate (a boundary...
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The closer the layer is at the Earth's core, the warmer it gets.
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Labradorite ((Ca,Na)(Al,Si)4O8) is a Plagioclase Feldspar mineral. It has a ratio of Calcium to Sodium of between 50%Ca:50%Na and...
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Yes
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Marble is a type of metamorphic rock, composed primarily of the mineral calcite or dolomite.
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An earthquake is caused due to tension between the earth's plates. This causes the release of seismic waves. There are 2 types of...
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It is just the hard sort. Most hard rock was constructed by slow solidification of magma but some metamorphosed sedimentary and...
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Rhyolite porphyry. See link below for image.
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The rock cycle is the natural process in which rocks transform from one rock type into another rock type over time, a type of...
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Quartz is a mineral. It is made up of almost pure silicon dioxide SiO2
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Crystalline quartz is has a glassy luster. Other forms of quartz can have a dull luster.
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It is the science of processing ores to extract and purify metal and make alloys..
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A sedimentary rock is formed form sediments, that is particles of pr existing rocks that have been broken down by weathering...
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Biotite mica has a Mohs hardness of 2.5-3.0.
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The most common mineral of calcium is calcium carbonate; also calcium sulfate, calcium magnesium carbonate, calcium silicates,...
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There are a number of active volcanoes in New Zealand, and a watch is maintained on them. These observations are recorded on the...
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Porosity is a measurement of the ratio of pore space to solids in a given volume of material. The pore spaces form in soils and...
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Rock can be transformed into soil by erosion by many means, including river erosion, but also by other means. Soil may also be...
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Well.. Rocks break from a word called Erosion. Erosion is the process of Earth being worn away, by Water, Glaciers, or Winds.Take...
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Sedimentary.
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I can find no reference to just clay and silt mixture, but if sand is included in the mixture its is called Loam. Loam is the...
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Because it is in a very huge amount on earth i.e. 70% ............but only 3% of it is useful
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Of the 120,000 tons of total mined gold, approximately 33,000 tons are held by central banks as official stocks. The remaining...
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!I think there is quarts, but I only think.
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