How do tilted rock layers form?
467968
Sedimentary rock forms relatively flat. Youngest always on top of the oldest. Just like a stack of newspapers if you were to accumulate them everyday.\n\nFolding from compressional stress is one. Rock is literally pushed together creating anticlines & synclines, upward folding & downward folding arches respectively.\n\nFaults can also do this. This can be accomplished through compressional (pushed together) or tensional (pulled apart) stresses.\n\nI am not too sure about this one but isostatic adjustment could possibly tilt rocks.\n\nHope this helps.\n\n:)
44651
The Rockies were formed in the Mesozoic and Early Cenozoic eras during the Cordilleran orogeny. They are geologically complex, with remnants of an ancestral Rocky Mt. system and evidence that uplift, which involved almost all mountain-building processes, occurred as a series of pulses over millions of years. The mountains have since been eroded to expose ancient crystalline cores flanked by thick upturned layers of sedimentary rocks. Glaciers and snowfields, which cover portions of the northern ranges and the high peaks of the south, were at one time more extensive; throughout the system the erosional features of alpine glaciation are apparent.\n\n:)\nPeace!
504278
Sedimentary rocks begin life as sediments (that is, clastic sedimentary rocks). To turn sediments into sedimentary rocks requires burial and compaction. Most sedimentary rocks form at depths of several hundred to several thousands of meters below the surface of the earth. In the Bahama Islands and other shallow tropical seas, chemical sedimentary rocks are being deposited on the sea floor all the time. It is hard to see this kprocess because it is slow and ongoing. In Death Valley and other arid closed basins, halide (salt) chemical precipitates are being deposited as ephemeral lakes evaporate. Once again, deposition is slow and these processes cannot be seen on a human timescale.
58331
Igneous rocks are formed with heat. They are most commonly found around volcanoes. Metamorphic rocks are formed with heat and pressure. Sedimentary rocks, like sandstone and limestone, are formed by pressure.
501423
Igneous rock becomes sedimentary rock by weathering and erosion which makes sediments. The sediments then is deposited and is cemented together to cause sedimentary rock.
488071
At convergent plate boundaries two plates collide and the heavier of the two plates is forced beneath the lighter one. As the heavier plate gets pushed down deep into the earth it begins to melt and forms molten magma. This magma slowly migrates upwards through the earth's crust where it then errupts onto the earth's surface as lava, eventually forming volcanoes. \n\nAt divergent plate zones two plates move apart from each other. When this happens a crack forms in the earth's crust. Magma from below moves upwards into this crack to fill the void 'so to speak'. Once again this magma errupts onto the earth's surface as red hot lava and we have the formation of active volcanoes.
225608
Igneous rocks are formed when molten rock (magma) cools and solidifies, with or without crystallization, either below the surface as intrusive (plutonic) rocks or on the surface as extrusive (volcanic) rocks. This magma can be derived from either the Earth's mantle or pre-existing rocks made molten by extreme temperature and pressure changes. Over 700 types of igneous rocks have been described, most of them formed beneath the surface of the Earth's crust. The word "igneous" is derived from the Latin ignis, meaning "fire".\n\nIgneous rock are classified according to mode of occurrence, texture, chemical composition, and the geometry of the igneous body.\n\nIgneous rocks make up 95% of the Earth's upper crust.
887609
the rock starts as magma turns into igneous then to sedimentary the metamorphic....extreamly siplified but i think u get the point\nheres what a more complex on looks like\nhttp://geologyonline.museum.state.il.us/tools/lessons/6.4/rockcycle.gif
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.
819002
When two plates collide, they BOTH begin to go under a bit.  However, when a continental, and an oceanic plate collide, the oceanic plate ends up going under more.  Why?\n\nFor one thing, the continental plate is up higher than the oceanic plate to begin with.  After all, continental plates are always above sea level, and oceanic plates are always below sea level.  With the advantage of heighth, the continental plate usually pushes the oceanic plate below.\n\nFor another thing, the continental plate is thicker than the oceanic plate, and therefore is going to be harder to crumple, squish, or flatten.\n\nAlso, the oceanic plate is already under an enormous downward pressure from all of the ocean on top of it.\n\nAdditionally, continental plates are lighter.  They were formed by materials on the primordial earth that had floated to the surface, while oceanic plates are formed out of the magma from the center of the earth, which was below the continental plates because it was heavier at the time the plates were forming.\n\nAnd finally, wet rocks are a great deal softer than drier rocks, so the continental plate is harder to bend or break than the oceanic plate, which is soaked all the way through.
317463
When liquid magma comes out of the earths crust at the mid-oceanic ridge, it cools rapidly forming crystals. These crystals have magnetic properties that align the crystal according to the earths magnetic field at the time they cooled, similar to how a compass needle points north, the magnetism in the crystal indicates which direction was north when the crystal was formed.\n\nHowever, the direction that is north today, was not always north in the past, in fact many times in geologic history, the north and south poles were reversed entirely. This is reflected in the "magnetic bands" found in rock on the ocean floor.\n\nSo, if you imagine the Atlantic Ocean between the U.S. and Europe, there is a mid-ocean ridge between the two. If the plates never moved, then the magma coming out of this ridge would just pile up, but instead, this is the "engine" that moves the plates away from one another. As you move from the mid-ocean ridge towards the continents, the crystals in the rock have different magnetic orientations that show these flip-flops of the earths magnetic field through geologic history. Because this material originated at the mid ocean ridge, but is now closer to the continents, it shows that the earths crust, the floor of the ocean, is moving AWAY from the mid-ocean ridge and TOWARDS the continents.\n\nThere are a lot of  diagrams that would probably help you understand this better. CHeck out a geology book, or look online.\nGood Luck!
654586
Igneous rocks-- formed from magma, extrusive or intrusive.  extrusive have small crystal forms ex. basalt, scoria, pumice.  Intrusive large crystals forms ex. granite, gabbro\n\nSedimentary rocks -- the only rocks that contain fossils, formed at the surface, formed from fragments of other things ie. rocks, fossils, woody plants (coal), or minerals crystallizing out of water (limestone) -- Are porous found in aquifers, oil fields.\n\nMetamorphic rocks -- forms from alteration of other rock with increased pressure and/or temperature.  Always in a solid state (they don't melt)called recrystallization, form new minerals that are stable at increased temperature and/or pressure, happens below the earth's surface (at depth).
572852
There are three major ways that rocks are formed. The first of these is from heat ie- igneous rocks. They are the volcanic rocks, among which are obsidian, and granite. Both obsidian and granite contain the same minerals but their different appearances are caused by differences in the speed of their cooling. Obsidian cooled very rapidly and has a glassy texture.  Granite cooled very slowly and the separate minerals crystallized into larger crystal. The three major minerals of granite and obsidian are quartz, feldspar, and mica, each cool at a different rate.\n\n\nGranite is an Intrusive rock=\nIgneous rock that cools and solidifies beneath the Earth’s surface\n\nObsidian is an Extrusive rock=\nIgneous rock that cools and solidifies at or very near earths surface eg- in a lava flow
1096907
Caves often contain a large number of fascinating deposits that form within the cave by precipitation of limestone from water seeping into the cave. The two most well-known and commonly seen formations are stalactites and stalagmites.\n\nStalactites hang from the ceiling. They are long pointed conical deposits of limestone. The water seeping into the cave has both carbonic acid (dissolved CO2) and calcium carbonate in it. As the water is exposed to the cave air, frequently some of the CO2 comes out of solution to equalize with the cave air. This makes the solution oversaturated with calcium carbonate and the mineral deposits on the surface the water is flowing over. Stalactites in some caves have internal layers, somewhat like tree rings, that correspond to seasonal changes. Various types of isotopic and trace mineral analyses can be done with these revealing information about past climates and showing the age of the stalactites. \n\nStalagmites are very much like a stalactite, except they form on the floor and build upward. They do not always have the same degree of organized internal structure as a stalactite because they grow from dripping, sometimes splashing water and can be more irregular. \n\nWhen a stalactite and a stalagmite grow together, as often happens, they will eventually form a column. These can be very tall, or very massive. \n\nWhen water flows across some slopes in caves it will form what is called flowstone. Flowstone can take many shapes and can be very smooth or can form small ripples and cups on its surface that sometimes grow large enough to hold small pools of water. Often there will be stalactites forming near the bottom of a flowstone formation where the water begins to drip again. \n\nRimstone dams are another dramatic cave formation. These sometimes thin walls of calcite form as near-vertical walls on the floors of caves and will hold back large pools of water. Where the water flows over the edge of the rimstone dam, the thin sheet of water will lose CO2, causing CaCO2 (calcite) to precipitate. \n\nTake a look at these websites to see some photos. If you want to learn more about caves check out the National Speleological Society page here:\nhttp://www.caves.org/committee/education/learnmoreaboutcaves.htm
278479
Metamorphic rocks are formed through pressure and heat. They change from one type of rock to another, literally.
248396
OMGGG!! I can go on forever on this one... but I'll try to be as brief as possible. \n\nOk, so rocks are made by three different processes: \n\n- Volcanic eruptions - These rocks are called IGNEOUS ROCKS.  There are various types of rocks that can be produced.  They can be from either when lava flows on the surface of the earth and cools down, or when magma inside a volcano cools down before it hits the surface.  It doesn't take all that long for these types of rocks to form, and hese rocks are usually crystallized and can be easily distinguished because of the crystal type of formation.\n\n- Another tyoe of rocks - called SEDIMENTARY ROCKS are a result of erosion by wind, water, or glaciers.  These types of rocks may take thousands or even millions of years to form.  So, in this process, sediment (the tiny particles) that is eroded away from the different erosion processes settle in one place and over a long period of time they are formed into rocks. One layeer after the next. \n\n- And the last types of rocks are formed from either Igneous rocks or Sedimentary rocks.  These are called METAMORPHIC ROCKS... word derived because thise rocks have "morphed" into something that is no longer sedimentary or igneous rocks.  These rocks go through these changes and become Metamorphic due to the high pressure which causes heat to build up in these solids.  These rocks can also be relatively easily distinguished because when you look at them, you can actually see flat grains.\n\nso, no! Rocks do not magically appear but they appear over time.  \n\nThere is tons more to the subject, as in you can actually study a given rock and tell how old it actually is and when it was originally formed, but that's another question! :)\n\nhope this helped... \nCheers!
144030
Is this a question?  I was confused by the lack of a complete sentince.  \n\nHowever, if the strata are flat, there is no special name for it.  It's just a bedding layer.  It's measured by the strike (horizontal direction) and the dip (amount it's sloping down).  If it folds and the youngest material is on the inside, it's a syncline (v shaped), but if the youngest material is on the outside, it's an anticline (A shaped)  Then, if the fold is not level, it's called a plunging anticline/syncline.