true A+
true A+
The theory that sedimentary rock layers are generally younger than the layers beneath them is known as the Law of Superposition. This geological principle states that in an undeformed sequence of sedimentary rocks, the oldest layers are at the bottom and the younger layers are at the top. This ordering helps geologists determine the relative ages of rock formations and the fossils they contain.
When the surface of new rock layers meet a much older rock beneath them, it is called an unconformity. This represents a gap in the geologic record due to erosion or non-deposition between the older and younger rocks.
The process of "overthrusting" occurs when tectonic forces push one rock layer on top of another, causing younger rock to be placed beneath older rock. This can lead to a reverse order of rock layers in a geologic formation. Another process, called "faulting," involves the movement of rock layers along a fault plane, which can result in the displacement of younger rocks below older rocks.
A fault or an intrusion of magma is always younger than the rock layers around and beneath it. This is because faults cut across existing rock layers and intrusions of magma cool and solidify after the surrounding rock layers have already formed.
Extrusion is older than intrusion because, an extrusion is always younger than the rocks below it. An intrusion is always younger than the rock layers around and beneath it. Hope the answers correct ;)
Principle stating that older rock layers are beneath younger rock layers.
An intrusion (:
A crosscutting feature is always younger than the rock layers it cuts through because the feature always forms after the rock layers have been formed, making the rock layers older.
true A+
true A+
A crosscutting feature is always younger than the rock layers it cuts through because the feature always forms after the rock layers have been formed, making the rock layers older.
Intrusions of igneous rock are typically younger than the rock layers they penetrate. This is because the magma that forms igneous intrusions is usually injected after the surrounding rocks have already solidified and formed.
When the surface of new rock layers meet a much older rock beneath them, it is called an unconformity. This represents a gap in the geologic record due to erosion or non-deposition between the older and younger rocks.
The process of "overthrusting" occurs when tectonic forces push one rock layer on top of another, causing younger rock to be placed beneath older rock. This can lead to a reverse order of rock layers in a geologic formation. Another process, called "faulting," involves the movement of rock layers along a fault plane, which can result in the displacement of younger rocks below older rocks.
The Law of Superposition states that younger layers of deposition will form on top of older layers of deposition.