Rock strata or sediments that prevent water from penetrating are called what?
535202
IMPERMEABLE means that water can not go through or can not go through easily.\n\nPermeable means that water can travel through it rather easily.\n\nRocks are permeable or impermeable based on their porosity or the amount of holes & connections w/in the rock.
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blocked pores and bacteria.
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it keeps water away from the contact with the ground
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There are several types of sedimentary rock that act as reservoirs & caprocks for oil & natural gas.\n\nReservoir rocks must have a certain degree of porosity (containing holes) & be permeable (able to move through). Some of these may include limestone, other carbonate rocks (such as what James said earlier), shale, & sandstone.\n\nOn top of these reservoir rocks are cap rocks. They must be impermeable as to not allow the oil/natural gas to escape. These can include limestone & shale as well.\n\nGeologists also look for certain physical structures such as salt domes & anticlines.\n\nSalt sometimes serves as caprock for oil reservoirs. Rising salt domes are sometimes dead giveaways for oil deposits. Many of these occur in the Gulf States.\n\nAnticlines are upward folds in rocks. Under the right conditions, anticlines serve as traps.\n\n:)
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depends on the hydrosataic pressure of the aquifer relative to the elivation or the water bearing strata
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A complete answer to this question would require a very large book.  You will need better focus for a short answer.\n\nAcids dissolve most minerals and rocks.  Even water dissolves rocks or rock constituents over a long period of time.  There is fabulous erosion in calcium rich rocks creating tunnels and underground chambers...\n\nAcid rain enhances this process greatly.  Virtually all the salts in the oceans came by the erosion of rock salts over aeons of time spent under the never ceasing rainy seasons.\n\nSome conditions are rock forming or metamorphosing, others are rock dissolving.\n\nHeat and cold are also factors in the deterioration of rock, making it more vulnerable to water and acid rain.\n\nThere are many fabulous websites on rocks and minerals and gemstones.  Just Google some of that and you will pull up two or three super-excellent ones.\n\nTry also Googling "rock geological processes."  Keep it in quotes.
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It's Waterspout.\n For more info, log on to http://en.wikipedia.org/wiki/Waterspout
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At the bottom of a series of strata.
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No I have not heard that terminology and I have drilled through salt before. Salt usually washes out, i.e. goes into solution if drilling with a water based mud. \n\nIt must refer to the geological structure of the salt dome itself, pretty much like you can get a '4 way dip enclosure' you could get a salt enclosure of sorts.
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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.
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Simple answer?\n\nC - Groundwater\n\nWater and air fill the spaces down to the zone of saturation, i.e. the water table, though its not really a flat surface in the ground. As one goes deeper, saltwater encroaches becoming brines.\n\nIn some areas where the geology is right and structural traps exist in the formations, oil and natural gas can occupy fractures and pore spaces.
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aquifers, undergound streams, etc. anything under ground
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x is greater than y. when the rock is on the boat, it displaced water equal to its weight. when its in the water, it displaces water equal to its volume. the rock's density is greater than that of water. so more weight than volume equals more water displaced while its on the boat which means the level is higher.
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Lithology is the study of rocks and minerals.  Stratigraphy is the mapping of layers of sediments, perhaps composed of rocks of similar types.
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They are escaping the water which sinks through the soil so they don't drown.
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Water, wind and ice can all cause erosion in rocks.  Wind will often blow small bits of sand or pebbles at a rock, which can wear it down.\nWater does something similar, slowly wearing down a rock over time.  This is why you often find round stones in and around rivers.\nWater also gets into the cracks of a rock.  As the water freezes, it expands and causes bits of the rock to break off.
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False. Caves are found in permeable rock called limestone. Naturally occurring acids dissolve the rock to produce the caves.\n\nThe clue here is containing water. Permeable rock can contain water whereas impermeable rock is resistant to water moving through it.