sedimentary rocks
If it is above it, the rock layer came after the intrusion. if the intrusion went through the rock layer is older because they layer had to be there in order for the intrusion to go through.
The crust.
under water when layer of minerals settle on top of one an other
The youngest rock layer in a geological sequence is typically the one that has not been disturbed by faults or intrusions. When a fault occurs, it displaces the rock layers, indicating that the fault is younger than the rocks it cuts through. Similarly, an igneous intrusion forms when magma penetrates existing rock layers, making it younger than the surrounding sedimentary rocks. Thus, both faults and igneous intrusions are younger than the rock layers they affect.
Sandstone, Limestone and Shale are all examples of sedimentary rock, formed by layer after layer of different types of water born sediment laid down over millions of years and compressed into rock. The different types of sediment determine which type of rock is formed, obviously sand being the main component of sandstone, mud can form shale. Igneous rock is rock formed by volcanic processes, different minerals in the molten rock will determine it's type, such as granite. Metamorphic rock is the third type of rock formed by extreme pressure and heat upon sedimentary rock, marble being formed from limestone, slate from shale.
If other layers of rock, dirt, dust, and sand are put on top of the igneous rock and the layers are compressed by their own weight, they become a single, unified layer of sedimentary rock. Simple Version: 1. Igneous rock 2. More rocks are put on the igneous rock. 3. The rock on top push down and squeeze the all of the layers into one layer.
To date a sedimentary rock layer between two igneous rock units, geologists typically use radiometric dating on the igneous rocks above and below the sedimentary layer. They assume that the sedimentary layer was formed after the lower igneous layer and before the upper igneous layer, thus establishing a relative age. The ages obtained from the igneous rocks provide a minimum and maximum age for the sedimentary layer, allowing geologists to estimate its age within that timeframe. This technique relies on the principle of stratigraphy and the law of superposition.
The hardened layer of lava is called "igneous rock".
If it is above it, the rock layer came after the intrusion. if the intrusion went through the rock layer is older because they layer had to be there in order for the intrusion to go through.
Ozone layer break because of CFC's. they react with ozone and break it.
The crust.
The thinnest layer of the earth is the outer layer, or the crust. It is made up of sedimentary, metamorphic and igneous rock.
As lava cools, it hardens and forms a thick layer of rock. These rocks are known as igneous rocks. An example of an igneous rock is pumice, which is used in spa treatments to soften feet.
because sedimentary rocks are on the top layer, while igneous rocks are were the magma is
Geologists use radiometric dating of the igneous rock units above and below the sedimentary layer to establish a time range for the sedimentary rock. They assume that the sedimentary layers are younger than the underlying igneous rock and older than the overlying igneous rock, based on the principle of superposition. This allows them to estimate the age of the sedimentary layer by determining the ages of the surrounding igneous rocks.
No, deposition is like accumulation, where & how sediments settle. The outer layer is the crust.
When ash and dust settle on the ground, they can become compacted by natural processes such as wind, rain, and the weight of additional layers of sediment accumulating on top of them. Over time, these forces can squeeze the ash and dust particles together, forming a more solid layer.