how does sandstone deposit above conglomerate?
115642
You need to have special circumstances to find sandstone on top of a conglomerate. Typically not a marine environment because oceans and waters for example rivers sort the sediments to different grain sizes dependant on the speed of the current. Conglomerates are UN sorted sediments of many grain sizes. a common place to find this is in an environment where there were glaciers, they could drop unsorted sediments and then as the glacier recedes the outwash from streams can deposit layers of sand above it. I suppose there can be plenty other environments for this kind of deposition but I would say this is the most common. But it is definitely not the result of the oceans transgressing or regressing.
595341
below the crust, above the core.
111289
Your question is way to vague.  There are so many variables to consider that there is no way to answer your question.  \n\nWhat kind of deposite is it?  Is it near surface or very deep?   What kind of other minerals are there?  What kind of permiting is required.  Is it an enviromentaly sensitive area, or in existing workings?  What kind of impurities are involved?  \n\nA feasability study is your first step.
680937
1 Deposition\n2 Compaction\n3 Cementation
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
780394
Yes it has something to do with acids.\n\nLimestone is CaCO3 deposits. If you look at the acid-base reaction between an acid and CaCO3 you can see that the carbonate ion favors being protonated and because of the fact that it's protonated state is very unstable it readily becomes water and CO2 gas. \n\n2 H+ + CO3 2- ---> H2CO3 ---> H2O + CO2\n\nThese two products of the reaction are very healthy for environments. However, since this reaction doesn't occur in areas of mostly granite, these bi-products aren't produced leading to the acid having a more detrimental affect on the surrounding environment.
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.
340074
granite is very abundant in continental crusts. There are lots of plutonic rocks in continetal regions not like in oceanic crusts.
211211
You need to think about this in terms of the question, that is what one of these processes involves movement of sediment.\n\nWeathering does involve movement of sediment, since weathering includes lots of processes that break down rocks into smaller particles or even dissolve rocks. Dissolution of limestone by carbonic acid in water is weathering that 'moves' rock. Freeze-thaw weathering of sandstone breaks the sandstone into smaller particles that are carried away by water, gravity, and wind. \n\nDeposition is the end result of the process of moving sediment, and may be the only one that does not answer your question, but because it is part of the process of 'moving' sediment it probably counts. \n\nErosion definitely moves sediment. Soil, sand, and rock are eroded by moving water and transported to new locations. \n\nAbrasion results in 'moving' sediment. Glaciers abrade underlying rock and grind it into small particles. Wind blows sand grains against rock and abrades it and reduces it to smaller particles. \n\nI think the only correct answer here is "all of the above.”
77980
Usually the geology of the rocks prevents the oil sepage.  oil is normally found in large reservoirs formed by permeable rocks deep underground.  They are capped by a layer of impervious rocks, this prevents the oil and any natural gas present from escaping.
531651
There rarely exists a "hollow area."  The oil occupies tiny voids within the (sand?) strata and often collects in usable amounts in domes and folds capped by impervious rock.  After the oil is extracted the land above often settles as the voids compact.
735439
mountains form when techtonic plate hit each other, sometimes one will go over the other. they can also both go up and form a mountain. if 2 techtonic plates both dig downward then u have a valley.
636156
They are tiny little spaces found in the rock. These rocks are often referred to as porous permeable rock which means they have tiny interconnected spaces which allows the oil to reside.\n\nOil is usually sitting on top of water. That is how it is naturally found. When it is pumped out, the residual water fills up the spaces.\n\nRemember there are no big voids or holes made in the ground during this process. Oil doesn't sit in large underground cavarns or holes.
1018342
It is kind of a hodge-podge of weight of the particles and the order in which they are deposited.  When a rock face of sediment is cut in half, you will see large particles sporactically throughout the rock section, but most will be at the bottom of their respective layer.  Sedimentation is a very tricky topic because it also depends on the geometry of the particles.
835925
Generally sandstones and quartzites are more weathering resistant. They tend to form mountains and ridges. Limestones and shales tend to weather more and form valleys. They can't hold a mountain up. \n\nDifferential weathering is where different formations or even bedding within the same formation, weather at different rates. Softer, less competent rocks weather faster than harder, more substantial rocks. Look at a road cut, some rocks stick out like massive sandstones, and underlying shales have weathered back into the hillside. The rocks have experienced the same weathering forces, but the shales have weathered faster. Look at a cross-bedded sandstone. Some bedding is prominent and sticks out, some has eroded back in the formation. Both are differential weathering.\n\nIn the big picture, the rocks on a mountain have resisted weathering, where the rocks in the valley floor have succumbed, Differential weathering.\n\nThe last part of your question; think of a cemetery. Which gravestones last the longest? Lots of pink granite ones, huh? Granite is a very hard metamorphic rock. It is the most resistant to weathering. Marble is metamorphosed limestone. Much harder than limestone, but still CaCO3 (Calcium Carbonate). Rain is slightly acidic, so marble will weather out, but very slowly. Sandstone is a sedimentary rock, softer than granite or marble. So there is your answer.\n\nI hope this helps.
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.
592783
okay first you have lava whihc solidifies above or below ground to become extrusive or intrusive igneous respectively and the intrusive having larger crystal sizes since they cool slower then those are wethered away and washed away by water and compacted to become sedimentary this process can also happen to other sedimentary rocks or metamorphic rocks to make them sedimentary rocks then the rocks can be deformed but not melted by heat and pressure the deformation makes them metamorphic rocks again this can happen to any rock to make it a metamorphic one then any rock can be completely melted and resolidified to become igneous\n\nwhew i finally finished... i wonder if anyone will understand that without punctuation...