0
Which type of intrusive feature forms when when magma is injected into fractures cutting across rock layers?
sill
What else can I help you with?
Which type of intrusive feature when magma is injected into fractures cutting across preexisting rock layers?
sill
Which type of intrusive feature forms when magma is injected into fractures cutting across preexisting rock layers?
Dikes are intrusive features that form when magma is injected into fractures that cut across preexisting rock layers. Dikes are tabular structures that can range in width from a few centimeters to tens of meters and can extend for kilometers.
What type of intrusive features form when magma is injected into fractures cutting across preexisting rock layers?
A fault
What is cross-cutting relationship?
A crosscutting feature occurs when a rock or body of sediment cuts across, through fractures, faults, or magma. Any feature that cuts across must be younger than the rock or sediment that it cuts across.
A thin sheet of magma can harden underground to form a dike?
Yes, when magma is injected into fractures in the Earth's crust and cools and solidifies underground, it forms a sheet-like geologic feature called a dike. Dikes are made of intrusive igneous rock and can be composed of materials such as basalt, granite, or diorite. They are typically vertical or near-vertical in orientation and can range in thickness from a few centimeters to several meters.
What is the principle of cross cutting relationships?
Crosscutting includes fractures (cracks in rocks), faults (fractures where movement has occurred), or masses of magma that cut across preexisting rocks before cooling. Any crosscutting feature must be younger than the rock or sediment it cuts across.
What principal involves an intrusive rock body younger than the rock into which it intrudes?
The principle you are referring to is the principle of cross-cutting relationships. It states that any feature that cuts across a rock must be younger than the rock it cuts across. This applies to intrusive rock bodies, which are younger than the rocks they intrude into.
Do laccolith features occur when volcano lava cools at the surface?
No. A laccolith is an intrusive feature.
Why is a volcano an extrusive igneous feature rather than an intrusive feature?
A volcano is composed of material that cooled and solidified at the surface, which makes it extrusive.
Which of the following is a feature of osteoporosis?
A feature of osteoporosis is decreased bone density, leading to weakened bones that are more prone to fractures.
Which intrusive feature may start as a sill but as more magma builds it pushes upward like a lens?
A laccolith is an intrusive feature that may start as a sill but as more magma accumulates, it can cause the overlying rocks to bend and create a dome-like shape. Over time, this dome can grow larger and form a lens-shaped intrusion beneath the Earth's surface.
What is an igneous intrusive feature that forms from a lens shaped mass of magma that arches the overlying strata upwards?
Laccolith
