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Why do you think raindrop impressions are more likely to be preserved in fine-grained sedimentary rock rather than in coarse-grained sedimentary rock?
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∙ 8y ago
Vary fine sediments, such as mud, will crater when struck by raindrops. If the viscosity is not decreased by too much rainfall or influx of water, the raindrop impressions will be preserved when the mud dries. If subsequent sedimentation over the dried mud is rapid, the dried mud will not have time enough to dissolve by the influx of additional moisture. Thus the imprints may survive eventual lithification into rock.
Coarser sediments would involve larger mineral and rock particle sizes and more pore space than finer, less porous sediments. The larger particles, and greater porosity would not be conducive to the creation of raindrop impressions or their preservation, as the drop would not cause a cratering of the impacted sediment, but rather pass around and through it.
Chanel Huels
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Where are most fossils preserved?
Sedimentary rock
What are animals or plants preserved in sedimentary rocks?
I would say fossils .
How do you see a sedimentary rocks age by looking at the fossils?
Find out what era the Fossil was from and then you can put a relative date on the sedimentary rock, assuming that the fossil was preserved in the sedimentary rock when it had died. It would not be the actual age because you need to date the radioactive isotopes for that.
Why are most fossils fossils found in sedimentary rocks?
well because organisms can be preserved in sedimentary rock mispelled
What happens to sediment over time?
Sedimentary layers are conspicuous by the neighbors they keep. There are two types of sedimentary layers; those that have formed and those that are today forming. Over time they are compressed and thereby preserved.
Why are raindrop impressions are preserved in in fine grained sedimentary rock rather than a coarse grained?
because raindrops have small particles and coarse grained sedimentary rocks have big particles so it is easier for raindrop impressions to occur in fine grained sedimentary rocks
Where are fossils preserved?
it is mostly preserved in sedimentary rock
Where are most fossils preserved?
Sedimentary rock
What are the remains of plants and animals that have been preserved in sedimentary rock?
FOSSILS
What are animals or plants preserved in sedimentary rocks?
I would say fossils .
Is a sedimentary rock a fossil?
A fossil is any record of an organism preserved in rock, whether it be igneous, sedimentary, or metamorphic. Nearly all fossils are discovered in sedimentary rock.
In what are Specimens of plants and animals are preserved in?
Tar pits, ice, and sedimentary rock.
What kind of rocks yield fossils?
Most fossils are preserved in sedimentary rocks.
Why do you think raindrop impressions are more likely to be preserved in fine- grained sedimentary rock rather than coarse- grained sedimentary rocks?
Vary fine sediments, such as mud, will crater when struck by raindrops. If the viscosity is not decreased by too much rainfall or influx of water, the raindrop impressions will be preserved when the mud dries. If subsequent sedimentation over the dried mud is rapid, the dried mud will not have time enough to dissolve by the influx of additional moisture. Thus the imprints may survive eventual lithification into rock. Coarser sediments would involve larger mineral and rock particle sizes and more pore space than finer, less porous sediments. The larger particles, and greater porosity would not be conducive to the creation of raindrop impressions or their preservation, as the drop would not cause a cratering of the impacted sediment, but rather pass around and through it.
Why do you think raindrops impressions are more likely to be preserved in fine grained sedimentary rock rather than in coarse grained sedimentary rock?
Vary fine sediments, such as mud, will crater when struck by raindrops. If the viscosity is not decreased by too much rainfall or influx of water, the raindrop impressions will be preserved when the mud dries. If subsequent sedimentation over the dried mud is rapid, the dried mud will not have time enough to dissolve by the influx of additional moisture. Thus the imprints may survive eventual lithification into rock. Coarser sediments would involve larger mineral and rock particle sizes and more pore space than finer, less porous sediments. The larger particles, and greater porosity would not be conducive to the creation of raindrop impressions or their preservation, as the drop would not cause a cratering of the impacted sediment, but rather pass around and through it.
How do you see a sedimentary rocks age by looking at the fossils?
Find out what era the Fossil was from and then you can put a relative date on the sedimentary rock, assuming that the fossil was preserved in the sedimentary rock when it had died. It would not be the actual age because you need to date the radioactive isotopes for that.
What color is the troodon?
Troodon is extinct and has no skin impressions preserved. For most prehistoric animals colour is currently unknown. However, there two studies have recently found preserved Melanosomein the feathers of Sinosaurepteryx and Anchiornis and have been able to decipher their colours.
