The core, because it is the middle part of the earth and was formed first
In a normal sequence (ie one that has not been tectonically deformed) the oldest layer is the lowest layer - so the one at the base of the sequence is the oldest. This is called the "law of superposition".
The bottom layer was depostied first and is the oldest layer.
In most cases, yes, the bottom layer is the oldest layer in stratigraphy. This principle is known as the law of superposition, which states that in an undisturbed sequence of rock layers, the oldest rocks are at the bottom, and the youngest rocks are at the top. However, geological events like folding or faulting can disrupt this order.
You would know because the youngest rock layer is always on the top, and the oldest is always at the bottom of the canyon.
The bottom layer of rock in a geologic sequence is usually called the basement layer.
The layer at the bottom of the mountain is typically the oldest, as rocks are usually deposited in chronological order with the oldest rocks at the bottom and the youngest at the top. This principle is known as the law of superposition.
we can find out by looking at the bottom because what ever was on the ground first has to be the oldest.
The oldest rock layer is typically found at the bottom of a sequence of sedimentary layers, following the principle of superposition in geology. This principle states that in an undisturbed sequence of rock layers, the oldest layer will be at the bottom and the youngest at the top. Therefore, the rock layer closest to the Earth's surface is usually the youngest, while the rock layer at the bottom is the oldest.
The 4th layer of soil >.<
false
The inner core of the Earth is the oldest layer, estimated to be about 4.5 billion years old. This layer is solid and composed mostly of iron and nickel.
Superposition is the theory that the rock layer that is on top is the youngest and the layer of rock on the bottom is the oldest.