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What takes place when dissolved minerals are deposited in tiny spaces among the sediments?
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Why is burial usually necessary to turn a sediment into a sedimentary rock?
The key to converting sediment into sedimentary rock is often though of as being pressure. And it is only by burial that enough pressure can be generated on a layer of sediment to "press" it into sedimentary rock. With pressure and time comes what is called compaction and the expulsion of (most of) the space between the particles of sediment that were deposited. Let's look at sediments being laid down and turned into sedimentary rock.When sediments are created, moved and deposited, they can consolidate and form a layer or layers. These strata will be composed of particles of organic and inorganic material. Included will be the intersticial spaces between the sediments. Any water present in the pore spaces (and there usually is) will bring with it dissolved minerals. These can precipitate out in the spaces, and will cause cementation, which is the binding of these minerals to the particles of sediment and the "sticking together" of the sediments. Following the deposition of more material, pressure (lithostatic pressure) will build on the underlying strata. The compaction forces the layer to become more dense and to "turn to stone" over time. And sedimentary rock is the result of this process.
What is compaction and cementation?
Compaction does not necessarily cause materials to stick together. Cementation is more like having a binding material between the layers. Even compaction CAN result in binding together of materials such as sandstone.
What binds minerals together to form rocks?
The process of cementation binds minerals together to form rocks. It occurs when dissolved minerals fill in the spaces between the sediment particles.
What is the process in which minerals precipitate into pore spaces between sediment grains and bind sediments together to form rock?
a.cementation b.compaction c.conglomerate d.weathering
Water that fills spaces in rock and sediments is called?
groundwater
Why is burial usually necessary to turn a sediment into a sedimentary rock?
The key to converting sediment into sedimentary rock is often though of as being pressure. And it is only by burial that enough pressure can be generated on a layer of sediment to "press" it into sedimentary rock. With pressure and time comes what is called compaction and the expulsion of (most of) the space between the particles of sediment that were deposited. Let's look at sediments being laid down and turned into sedimentary rock.When sediments are created, moved and deposited, they can consolidate and form a layer or layers. These strata will be composed of particles of organic and inorganic material. Included will be the intersticial spaces between the sediments. Any water present in the pore spaces (and there usually is) will bring with it dissolved minerals. These can precipitate out in the spaces, and will cause cementation, which is the binding of these minerals to the particles of sediment and the "sticking together" of the sediments. Following the deposition of more material, pressure (lithostatic pressure) will build on the underlying strata. The compaction forces the layer to become more dense and to "turn to stone" over time. And sedimentary rock is the result of this process.
What is compaction and cementation?
Compaction does not necessarily cause materials to stick together. Cementation is more like having a binding material between the layers. Even compaction CAN result in binding together of materials such as sandstone.
When water and other minerals move through open spaces between larger sediments gluing them together what occurs?
Cementation
What binds minerals together to form rocks?
The process of cementation binds minerals together to form rocks. It occurs when dissolved minerals fill in the spaces between the sediment particles.
What is the process of filling in pore spaces with mineral substances?
Permineralization
Were do the cements that hold sediments together come from?
Sedimentary rocks come from the fragments of pre-existing rocks called sediments. There are three types of sedimentary rocks, each coming from different kinds of sediments. Clastic sedimentary rocks are created from the broken pieces of other rocks, while chemical sedimentary rocks form from mineral crystals like halite and gypsum
What is the process in which minerals precipitate into pore spaces between sediment grains and bind sediments together to form rock?
a.cementation b.compaction c.conglomerate d.weathering
What generally happens to the porosity of sediments as they are turned into rock?
Due to the processes of compaction and cementation the pore spaces are generally reduced in size or in-filled with other minerals. This acts to reduce the porosity.
Water that fills spaces in rock and sediments is called?
groundwater
Why must water evaporate or be pressed out for sedimentary rock to form?
The expulsion of fluids which occupy the pore spaces in sediments gives way to the precipitation of solid minerals which bind the sedimentary particles together into rock.
Why must water evaporate or be pressed out for sedimentary rock form?
The expulsion of fluids which occupy the pore spaces in sediments gives way to the precipitation of solid minerals which bind the sedimentary particles together into rock.
How did vien minerals deposits get in empty spaces?
Deep in the Earth, minerals are dissolved in the hot, high pressure water underground. That water seeps upwards into cracks in the rock. As it rises, it both cools and lowers in pressure. These reduce the ability of the water to hold the minerals in solution. The minerals crystallize in the cracks, forming the veins of mineral ore.
