0
What else can I help you with?
What is an igneous intrusion that forms between two layers of sedimentary rock?
An igneous intrusion that forms between two layers of sedimentary rock is known as a "sill." Sills occur when molten magma intrudes horizontally between existing rock layers, solidifying into igneous rock as it cools. This process can create distinctive geological features and may alter the surrounding sedimentary layers through heat and pressure. Sills often exhibit a uniform thickness and can vary in composition, depending on the magma source.
What type of rock is a laccolith?
A laccolith is a type of igneous rock formation that is created when magma intrudes between layers of sedimentary rock, causing the overlying layers to arch upward. It is classified as an intrusive igneous rock.
What is a loccolith?
A loccolith is a type of igneous intrusion in which magma is injected between layers of sedimentary rock, causing the overlying rock layers to bulge upwards in a dome shape. Loccoliths are typically characterized by a flat base and a domed top.
What geologic law is applied if an igneous intrusion is observed through a layer of sedimentary rock?
The principle of cross-cutting relationships is applied in this case. It states that the intrusion must be younger than the sedimentary rock it cuts through, as the igneous rock is "cutting across" pre-existing layers. This helps in determining the relative ages of the rocks involved.
How could you explain the presence of an igneous rock in a bed of sediments rock?
The sediment from which sedimentary rock is formed originally came from other rocks that weathered away. In some sedimentary rocks, especially breccia and conglomerate, some of those rock fragments can still be identified. If it does not appear to be part of the sediment, there are a few possible explanations depending on their relationship. If there is a layer of igneous rock between sedimentary layers then it could be from a volcanic eruption that occurred during the time of sedimentation, or a sill that intruded between layers after they formed. If the igneous rock appears to cut through the sedimentary rock then it most likely is an intrusion. If there is a piece of igneous rock that happens to be in an area where the local bedrock is sedimentary then it may have been transported there by glaciers.
Why portions of the sedimentary rock layers have the symbol for contact metamorphism?
the rock layers were eroded at the interface between the igneous intrusion and the sedimentary rocks.
What are the relative ages of igneous intrusion and overlying sedimentary rock layers that dome upward?
The igneous intrusion is typically younger than the overlying sedimentary rock layers in a dome structure. The intrusion must have occurred after the deposition of the sedimentary layers and caused them to deform and dome upward due to the force of the molten rock pushing through.
What is the The age of an intrusion of igneous rock in relation to the sedimentary rock layers through which it passes?
It is younger.
What is the age of an intrusion of igneous rock in relation to the sedimentary rock layers through which it passed?
It is younger.
What is the age of an igneous intrusion in relation to the sedimentary rock layers it passes through?
It is younger than them.
How can igneous rock disturb sedimentary rock layers?
Igneous rocks can disturb sedimentary rock layers and formations by their movement during ascent through such layer. when they make contact with this sedimentary rocks they could result to folding and/or metamorphism.
What type of rock is a laccolith?
A laccolith is a type of igneous rock formation that is created when magma intrudes between layers of sedimentary rock, causing the overlying layers to arch upward. It is classified as an intrusive igneous rock.
What is a horizontal intrusive igneous body that forms between sedimentary rock layers?
A sill is a horizontal intrusive igneous body that forms between sedimentary rock layers. Sills are formed when magma intrudes parallel to the layering of the surrounding rocks and solidifies underground.
What is a loccolith?
A loccolith is a type of igneous intrusion in which magma is injected between layers of sedimentary rock, causing the overlying rock layers to bulge upwards in a dome shape. Loccoliths are typically characterized by a flat base and a domed top.
How does igneous intrusion end up as a hill?
Basically, igneous intrusion involves the solidifying of magma when it cools in the crust of the Earth. When magma rises through the crust, it intrudes into the existing sedimentary rock layers and forms a hill. The surounding rock may be more prone to erosion and wear away leaving the intrusion jutting above the (eroded) surroundings.
What geologic law is applied if an igneous intrusion is observed through a layer of sedimentary rock?
The principle of cross-cutting relationships is applied in this case. It states that the intrusion must be younger than the sedimentary rock it cuts through, as the igneous rock is "cutting across" pre-existing layers. This helps in determining the relative ages of the rocks involved.
How could you explain the presence of an igneous rock in a bed of sediments rock?
The sediment from which sedimentary rock is formed originally came from other rocks that weathered away. In some sedimentary rocks, especially breccia and conglomerate, some of those rock fragments can still be identified. If it does not appear to be part of the sediment, there are a few possible explanations depending on their relationship. If there is a layer of igneous rock between sedimentary layers then it could be from a volcanic eruption that occurred during the time of sedimentation, or a sill that intruded between layers after they formed. If the igneous rock appears to cut through the sedimentary rock then it most likely is an intrusion. If there is a piece of igneous rock that happens to be in an area where the local bedrock is sedimentary then it may have been transported there by glaciers.
