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Geology

Parent Category: Earth Sciences
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.
the ones I know are quartz, feldspar, and horeblende
convergent boundries divergent boundriesconservative boundries
because phosphate rocks contains various metals and radionuclides  as minor constituents of ores.
Five quarries that I know of are in Kelowna, Kimbereley, Renefrew,  Salmo and Revelstoke.
Kimberlite pipes are typically quarried using open pit mines.
Radium is a decay product of uranium and is constantly being  produced. U-238 has a half-life of about 4.5 billion years, so  there's still quite a bit left of the original amount on Earth.
ya it may be possible that by the using role scoper results in soil  erosion
This is due to different soil compositions.
Well lets see there is black carbon,carbon dioxide emissions and draining rivers if you need help with anything else don't hesitate to ask
It can if exposed to the requisite conditions and circumstances of  weathering and erosion.
rocks: igneous rocks,metamorphic rocks,sedimentary rocks  ect.................
What will I be able to do when I've finished this with the rational and irrational numbers.
The common term is rock hound. If the collector collects precious stones, gemologist could fit.
The thinner but more dense crust of the earth is the Oceanic Crust.
vous me faites dur comme la pierre
Mars haz a thin atmosphere, but its gravity is very related to that of Earth, making colonization a possible thing in the future.
Vesuvius is about 1,000 feet deep and 2,000 feet across.
Both.   While most of the landmass of Earth is made of igneous and  metamorphic rocks, most of the rocks that we can actually see (i.e.  those on the surface) are sedimentary. Sedimentary rocks are formed  from deposition by forces like rivers, waves and glaciers.  Sediment, however, comes...
It helps the soil hold more rainfall so there will be less runoff and ruin the crops.
First, pebbles can be the result of larger rocks breaking up. Some  of these large rocks were bedrock under a huge continent. A long  time ago, the continents used to be one and then drifted apart to  their current locations and are still drifting to this day. During  this process, the "plates"...
Fossils are not found in water, but rather in the sediment deposits  which includes the bottom of a body of water. Fossils are  especially prevalent in shallow marine environments where they may  become well preserved.
Mica is an interesting silicate mineral. The silicate series is:  quartz --> mica --> asbestos.   Quartz possesses three dimensional Si-O bonds which results in a  crystal that is strong in every direction. Consequently, quartz is  an exceptionally hard mineral.    Mica, on the...
Geologists study the Earths surface
Otavia antiqua, a sponge has been dated to ~760 Ma.
Infertile soils lack abundant plant nutrients, especially for  agricultural crops. It doesn't mean they're unsuitable for plant  growth, but the only plants that naturally grow on them are those  that can either do with few nutrients, or can get their nutrients  from pools that are unavailable...
The size and shape of a mineral is its form.
Typically a quiet eruption means that the magma being forced onto  the surface is low in silicates and gases. This typically means  that it would be basaltic and slow moving like the lava flows that  can be observed in Hawai'i. A common danger to anybody near a  volcano could be poisonous gases.
By fossilisation and permineralisation.  Fossilisation is caused by layers upon layers of sediment  burying the bones. As the layers of sediment above the buried bones  increases, so does the pressure on the layers of sediment lower  down. The pressure becomes so great that the bones and the ...
The heavier/denser oceanic plate subducts the lighter, less - dense  continental plate.
Prior to the Cambrian life was small and simple. In the Cambrian  Period, prodigious change occured, all in the oceans, as the land  remained barren. Except for enigmatic forms, all modernanimal  phylawith a  fossil record, except bryozoa, are represented in the Cambrian.  Because some life...
many dinosaurs lived there in prehistoric times.
There are a few notable dig sites that have very well preserved  fossils from this period. The best sites of the Cambrian period  are:      Maotianshan Shales (Chengjiang)  515 Mya  Yunnan Province, China    Sirius Passet  518 Mya  Greenland    Emu Bay Shale  513 Mya ...
Sapphire, for anyone reading this who doesn't know, is the gemstone variety of corundum (Al2O3). Corundum is found in syenite (A granite-like igneous rock that contains little or no quartz), some pegmatites (igneous rocks with large crystals made of quartz, feldspar, and often mica), and in "high...
Stalactites grow downwards (hang down); Stalagmites grow upwards.  How to remember the difference: Stalactites "hold tight" to the  ceiling.
Where oceanic lithospheric plates converge or collide, the older, denser, and colder oceanic plate will move underneath the less dense oceanic plate. This is called subduction. The subducting oceanic plate will basically flow slowly downward at an angle as a slab of rock until heating from friction...
NADH is the primary electron and oxygen is the  terminal electron acceptor in the aerobic  membrane bound electron transport chain. The  overall electron transfer reactions can be  described by the reaction  2 NADH + 2H+ + O2 --> 2 NAD+ + 2 H2O  If the above reaction takes place in an...
Pumice rocks are found where volcanoes are. Pumice is a volcanic rock. It is formed from lava. However, you should know that not all volcanic eruptions produce pumice.
Crystal is a type of glass. It contains lead oxide whereas cheap  glass does not. This makes it rather heavier than cheap glass, size  for size. It also looks 'sparkly'. The number 8 is used in various  ways by many manufacturers.
There is the Crust, Mantle, Outer core, and Inner core. There isn't  really much to them. They are just the layers of the Earth
Some are studied and put in museums and the certain fossils are now oils and natural gases
Cotton does not produce well in soil of high organic matter. A  lighter sandier soil is better for cotton. Cotton can also  withstand high temperatures and loves full sunlight during its  growing season. Cotton is grown on different types of soils, such  as sandy loam, clay loam, black cotton...
A colliding plate boundary is the same thing as a convergent boundary. It occurs when two plates collide, forming mountains and volcanoes.
Yes, trees are good for the soil
Is a zapato a animal
Organisms in theground consume organic matter and deposit the  remnants as nutrients and minerals in the soil in a form that plant  life can more easily absorb. Larger organisms, like small animals,  burrow in the soil which increases the airiness of the soil.
A local oscillator can be a crystal oscillator.
No, the rock cycle does not have to start from the sedimentary rock
People erosion is when the soles of peoples shoes where down the rocks that they are walking on.
Surface wave cause the most damage during an earthquake.
Coal and oil are fairly cheap and abundant fuels, and deposits of  these range practically from pole to pole around the globe. Many  nations employ extraction technology, and those that don't purchase  oil (in particular) as fuel for transportation. So any place an  airplane flies or a car,...
Mean surface temperature over period duration 16.5 °C is the  closest I could find. 
There are four main processes that contribute to erosion -   Chemical Weathering, Biological Weathering, Exfoliation, and  Freeze-Thaw
  Orthoclase feldspar can be found in granite rock as the white or pinkish appearing crystals.
typically 2 things can happen: 1. the magma rises up and solidify s to become hard rock, so it is rebuilding the plate. This happens at on end of the plate, on the other side the plate is being melted away because its being forced into the magma. 2. volcano's form and earthquakes occur.
At one atmoshere pressure, water boils at 212 degrees fahrenheit, or 100 degrees celsius, theoretically you could heat a soil sample higher than that. It depends on the heat source. If you are speaking of temperatures found in nature, lava or magma is hotter than water, but can contain water vapor...
Check out this link http://www.ihsa.ca/WebHelp/Regulations_for_Construction_Projects/Excavations/Soil_Types.htm
Yes first is the crust which is made of rocks then from 30km is the  mantle which is a solid, but it can still flow, then from 2900km is  the core a liquid with a temperature of 3700 degrees C to 4300  degrees C. Finally, at 5200km and at temperatures of 4300 degrees C  plus is the inner core,...
Mt. Lassen is a lava dome type of volcano. The domes of lava dome  volcanoes grows from within, and commonly occur within the craters  or on the flanks of large composite volcanoes.
It divides Britain into hard and softer rock types. The softer  rocks in the south-east erode faster. In the north west are older  harder rocks such as granite and basalt.
Most hard shelled organisms didn't develop until the Cambrian. Soft-bodied organisms are much less likely to survive as fossils.
The soft rock gently erodes over a period of years mainly through wind.
The fossil record reveals relatively gradual changes in species  over time. For example, the earliest horses had three toes and a  curved spine, and were quite small. Over millions of years the  outer toes migrated up the leg and fused with the leg bone. The  teeth changed from browsing on...
A physical feature formed by volcanic eruption is an island. The  Hawaiian Islands consist of a chain of such landforms.
Oceanic crusts; the Mid-Atlantic Ridge and East Pacific Rise at zones of seafloor spreading and crustal extensions.
The vadose / unsaturated zone and the phreatic / saturated zone have the water table / phreatic surface as their boundaries.
Igneous rock is formed when magma cools and solidifies   Magma can be forced into rocks, blown out in volcanic explosions
silt and alluvilium
Impatiens, Hydrangea, sunflowers and peonies are the plants which  needed a neutral pH soil.
Marble is made up of interlocking crystals that fit together perfectly like a jigsaw, this makes it harder to break so therefore it is stronger. Limestone is made up of calcite grain that have been stuck together so they don't actually fit together properly.
The Mantle of the Earth is the thickest layer, and while solid, contains elements that cause it to be pliable and flowing due to extreme heat and pressure. It undergoes motions similar to boiling water, known as convection. Convection of the mantle is expressed at the surface through the motions of...
it is not yet certain, due to many factors.    given how often land in organic matter.?   more often and with much volume, the soil will be quickly  recovered.    how often a given soil biological fertilizer.?   the contaminated soil will make positive bacteria will die and the ...
 When an animal dies, bacteria eat the 'squishy parts' of the  corpse, and they give off hydrogen sulfide," said Sarah Gabbott of  the University of Leicester in England.   Typically, the hydrogen sulfide gas leaks out of the decomposing  matter, but if iron is present, as in the case of...
The 79 AD eruption of Mount Vesuvius did not produce lava flows. It  was a Plinian eruption, produducing a massive ash plume and  pyroclastic flows. Pyroclastic flows are not lava flows, they are  masses of hot ash, rock, and gas that resemble avalanches. Nobody  was able to clock the speed of...
the youngest layer of rock is the highest layer
Yes, a diamond cut into a shape to fit into a ring is a example of a crystalline solid
The Caribbean monk seal, West Indian seal (Monachus  tropicalis), or sea wolf, as early explorers referred to it,  was a species of seal native to the Caribbean and now believed to  be extinct. The Caribbean monk seals' main predators were sharks  and humans. Overhunting of the seals for oil,...
It is difficult to determine the absolute age of a sedimentary rock  because sedimentary rocks are made up of diverse particles that are  all different ages. As a result radioactive dating can only  determine the age of the particles, not the whole rock.