The rock on the way bottom, but not the vein
Granite
Vishnu Schist
around 4.5 billion years ago.
A fold is a geological structure where rock layers are bent or curved due to tectonic forces, typically resulting in the formation of ridges and valleys. The oldest rock in the center of a fold is often referred to as the "nucleus" or "core" of the fold and is usually a type of metamorphic or igneous rock that has undergone significant geological processes. In many cases, this oldest rock is referred to as the "axial" or "central" part of the fold. The specific age of the oldest rock can vary widely depending on the geological context and location of the fold.
Igneous Rock
In this scenario, the igneous rock intrusion is the youngest rock, as it formed after the metamorphic rock was already in existence. The metamorphic rock must have been present before the igneous rock intruded into it, making the metamorphic rock the oldest of the two. Thus, the metamorphic rock is the oldest in this context.
the oldest layer is made of fgh a type of cavemen pets formed from sub. teachers beating the kids pets
metaphoric
slate
Yes, in an anticline, the oldest rock layers are typically found at the center. This geological structure forms when rock layers are folded upwards, creating a convex shape. As a result, the sequence of rock layers is inverted, with the oldest strata exposed in the middle, while younger layers are found on the outer sides.
The Law of Superposition is a geologic principle that states in a sequence of undisturbed sedimentary rock layers, the oldest layer is at the bottom and the youngest layer is at the top. It is not a type of rock; rather, it is a fundamental concept used in geology to determine the relative ages of rock layers.
The oldest rock in oceanic crust is that which is found the greatest distance from a mid-ocean-ridge.