can anybody tell me alot of facts about metamorphic rocks at least 25 more pliz?
348469
Too long to list:\nhttp://seis.natsci.csulb.edu/bperry/ROCKS.htm\ngood site
172643
Check this out: http://en.wikipedia.org/wiki/Moon_rocks
754788
www.geology.com\n\nSeriously...\nGo there.
886078
The length of time for schist to form is highly variable and dependent on the surrounding environment.  The first link below gives a P-T graph (pressure vs. temperature) for metamorphic rocks.  The second link gives an overview towards schist and some pictures.\n\nhttp://csmres.jmu.edu/geollab/Fichter/MetaRx/MetaKind.html\nhttp://seis.natsci.csulb.edu/bperry/metarock/SCHIST.htm
774728
You can find an abstract of an article written on this subject at the url below. The title and volume listed below. \n\nIn a nutshell, the dates on this huge mafic-ultramafic complex in Brazil (old ocean floor possibly) point to two big events in the earth's early tectonic history: First, a Mesoproterozoic extension event (like a spreading ridge) that forms the mafic-ultramafic complex (ocean crust and seafloor)(1583±25 Ma , 1565±22 Ma-million years ago).  Then, a continental collision event: younger dates of 770–795 Ma (million years ago) for  metamorphism of the complex (" high-grade amphibolite to granulite facies prograde metamorphism"), may represent the timing of a continental collision event.   \n\nZircon and rutile U---Pb geochronology of the Niquelândia layered mafic and ultramafic intrusion, Brazil: constraints for the timing of magmatism and high grade metamorphism\n\nby Ferreira-Filho and several others.\nPrecambrian Research \nVolume 68, Issues 3-4 , August 1994, Pages 241-255
117530
Yes there are. This website tells all about it ---\n\nhttp://www.ivc.edu/geology/ocgeo.aspx
502206
Contact - magma is injected into preexisting rock & the heat from the magma metamorphoses the rock.\n\nRegional - covers a large area; usually due to mountain forming episodes called orogenies; the mountain forming episodes are caused by two continental plates converging; neither plate subducts b/c they are both the same in density.\n\nCataclastic - occurs along faults where plates grind past each other; due to friction\n\nThere is also burial metamorphism which occurs due to great heat & pressure from burial under many layers of sediment; when heat & pressure becomes great enough, burial metamorphism becomes regional.
678919
hhhmmmm....must be igneous...um...olivine. thats what it says. Pyroxene and plagioclase are also common
292427
Brouse around this site - it is excellent.\n\nhttp://www.palaeos.com/Earth/Geography/Pangea.htm
393590
Well, sedimentary has "sediment" in it. You know, the yucky mud stuff on the bottom of a river or stream. That's what sedimentary rocks are made of.\n\nIgneous looks like ignite, which is to start a fire. Volcanoes have red-hot magma in them, and that's what igneous rocks are formed from.\n\nA metamorphosis is a change from being one thing to being something else (like a caterpillar becoming a butterfly.) Metamorphic rocks are formed when other rocks are transformed by heat and pressure deep withing the earth's crust. \n\nI know you probably wanted some kind of clever mnemonic device, but in this case all you have to do is remember the meanings of three common words.
621420
look here http://www.rocksandminerals.adventuresinodyssey.be/
320893
try this:\nhttp://www.seismo.unr.edu/ftp/pub/louie/class/100/plate-tectonics.html
1037188
You would have to look at the color banding. How many color bands does it contain? What colors are in the banding?\n\nMost gneiss are igneous in origin; the protolith being either granite or diorite.\n\nGranite usually has some Kspar which tends to be pink. So granitic gneiss would have some white, pink, & dark banding.\n\nDiorite which is also igneous is black & white which will produce a gneiss w/ black & white banding.\n\nGneiss can form from other types of rocks such as schist which is the metamorphic form of phyllite which is the metamorphic form of slate which is the metamorphic form of the sedimentary rock shale.\n\nShale forms from clays which usually contain high amounts of aluminum. As it goes through different stages of metamorphism it tends to have a sheen this is due to the mineral mica.\n\nIf it tends to have a sheen along w/ the banding then it contains an abundance of mica & probably means that it came from the mudstone/slate or one of its metamorphic forms.
850810
phyllite, basalt, slate, shale. There are many types of schist. It is defined mainly as being a plated metamorphic rock in which the mineral crystals can bee seen with the naked eye.
147582
Meta- means change, morph- means form.  \n\nSee reference here: http://en.wikipedia.org/wiki/Metamorphic_rock
495467
http://www.acstones.com/gemofmonth/2001/gemofmonth.8.01.html
532046
woohoo geology... lets see if I remember anything...\n\nOkay here is a basic thing, the composition of rocks, especially it's silicate level, can tell us much about the molten/semimolten layers of Earth.... Okay I was enver very good in this subject, so look here...\nhttp://en.wikipedia.org/wiki/Geology