- #1
subopolois
- 86
- 0
Name the middle and end-members of fractionation series that start with: a)
basanite-tephrite b) trachybasalt, c) hawaiite.
basanite-tephrite b) trachybasalt, c) hawaiite.
A fractionation series is a sequence of rocks with varying compositions that form through the process of fractional crystallization. This process occurs when magma cools and minerals with different chemical compositions crystallize at different temperatures, resulting in the separation of different rock types.
The middle and end members of a fractionation series are determined based on their chemical compositions. These rocks are typically identified by their mineral assemblages and can be further classified based on their chemical composition using techniques such as X-ray fluorescence (XRF) or electron microprobe analysis.
Studying middle and end members of fractionation series provides insight into the evolution of magmatic systems and the processes that lead to the formation of different rock types. This information is important for understanding the Earth's history and can also have practical applications in mineral exploration and resource management.
The middle and end members of a fractionation series differ in their mineral compositions and chemical compositions. Middle members tend to have a more intermediate composition, while end members are more extreme in their compositions. This can result in differences in physical properties such as color, texture, and density.
Yes, the middle and end members of a fractionation series can be found in the same location. This is because these rocks are formed from the same parent magma and may have experienced similar cooling and crystallization processes. However, they may be separated by other rock types due to their different compositions and densities.