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What are the factors used to determine the depositional environment of different types of sedimentary rocks?
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How could a sedimentary rock provide evidence that a rock cycle exists?
The Rock cycle is a process whereby all types of rock are formed then eroded and "recycled" through different depositional processes. Sedimentary rocks can provide evidence that the rock cycle exists by looking at it under a microscope. Sedimentary rocks are formed by the lithification of grains of different sizes shapes and compositions. By detemining the compositions of the grains within a sedimentary rock through a petrographic microscope or through a scanning electron microscope (SEM) then it can be seen that some grains are composed of minerals that are solely igneous in origin. Likewise, sedimentary rocks can be metamorphosed to form meta-sediments.
How are clastic sedimentary rocks different from organic sedimentary rocks?
they form
What contains different kind of fossils?
Sedimentary rocks
Is it possible for a sedimentary rock to be changed to become a new sedimentary rock?
Yes it is possible for a sedimentary rock to be changed into a different sedimentary rock.
How can a sedimentary rock change into a different sedimentary rock?
by how they can used erosion and weathering
What is a brief summary of the section sedimentary rock features from the earth space science book?
depositional environments is the place or setting in which sediments is deposited. oceans, rivers, deltas, and beaches are all common depositional. each of the depositional environment has different characteristics that create specific structure in sedimentary rock.
Why is it difficult to determine the absolute age of a rock?
It is difficult to determine the absolute age of a sedimentary rock because sedimentary rocks are made up of diverse particles that are all different ages. As a result radioactive dating can only determine the age of the particles, not the whole rock.
What is heterolithic beds?
This means a rock which is formed of many layers (or beds) of two or more different sedimentary rocks. For example, a rock which was formed in a river delta may contain sandstones and silt or claystones which are layed over each other in beds formed as the depositional environment changed on a cyclical basis - e.g. due to tides, seasons etc.
Why do some rocks have different minerals?
the reason is because rocks can have different depositional environments and diagenesis history.
How could a sedimentary rock provide evidence that the rock cycle exist?
The Rock cycle is a process whereby all types of rock are formed then eroded and "recycled" through different depositional processes. Sedimentary rocks can provide evidence that the rock cycle exists by looking at it under a microscope. Sedimentary rocks are formed by the lithification of grains of different sizes shapes and compositions. By detemining the compositions of the grains within a sedimentary rock through a petrographic microscope or through a scanning electron microscope (SEM) then it can be seen that some grains are composed of minerals that are solely igneous in origin. Likewise, sedimentary rocks can be metamorphosed to form meta-sediments.
How could a sedimentary rock provide evidence that a rock cycle exists?
The Rock cycle is a process whereby all types of rock are formed then eroded and "recycled" through different depositional processes. Sedimentary rocks can provide evidence that the rock cycle exists by looking at it under a microscope. Sedimentary rocks are formed by the lithification of grains of different sizes shapes and compositions. By detemining the compositions of the grains within a sedimentary rock through a petrographic microscope or through a scanning electron microscope (SEM) then it can be seen that some grains are composed of minerals that are solely igneous in origin. Likewise, sedimentary rocks can be metamorphosed to form meta-sediments.
Identify seven features that you can use to identify the depositional environment in which sedimentary rocks formed?
Sorting= The tendency for currents of air or water to separate sediments according to size.Angularity= As sediment is transported from its source to where it is deposited, the particles collide with each other and with other objects in their path.Stratification= Layering of sedimentary rock.Cross beds and graded bedding= Some sedimentary rocks are characterized by slanting layers. Graded bedding are various sizes and kinds of materials are deposited within one layer a type of stratification.Ripple marks= Are caused by the action of wind or water on sand.Fossils = Fossils are the remains of ancient plants and animals.Concretions are sedimentary rocks that sometimes contain lumps of rock that have a composition that is different from that of the main rock body.
How are clastic sedimentary rocks different from organic sedimentary rocks?
they form
What contains different kind of fossils?
Sedimentary rocks
Is it possible for a sedimentary rock to be changed to become a new sedimentary rock?
Yes it is possible for a sedimentary rock to be changed into a different sedimentary rock.
How can a sedimentary rock change into a different sedimentary rock?
by how they can used erosion and weathering
Is metamorphic rock sedimentary?
No, metamorphic rock is not sedimentary; those are two different types.
