Q2- A rock has been crystallized form magma then it is changed into a metamorphic rock and finally become a sedimentary rock as sandstone with mineral contents of quartz ( 85%), potassium feldspar (10%) and mica. 1- What is the name of igneous rock which contents these minerals? what is the type of this rock regarding silica content ? 2- What is the type of magma which produces this igneous rock ? what is the type of this rock regarding the environment of formation? 3- If we assume ( ) that this igneous rock is formed from lava, what are the type of lava, viscosity and the volcanic eruptions produce this igneous rock?
Q2- A rock has been crystallized form magma then it is changed into a metamorphic rock and finally become a
sedimentary rock as sandstone with mineral contents of quartz ( 85%), potassium feldspar (10%) and mica.
1- What is the name of igneous rock which contents these minerals? what is the type of this rock regarding silica
content ?
2- What is the type of magma which produces this igneous rock ? what is the type of this rock regarding the
environment of formation?
3- If we assume ( ) that this igneous rock is formed from lava, what are the type of lava, viscosity and the
volcanic eruptions produce this igneous rock?
4- What are the type of metamorphism agent that make this igneous rock changed? and what are the name of this
metamorphic rock and its texture?
5- What are the type of weathering that make this metamorphic rock changed into sediments? and what are the
produce of this kind of weathering?
6- What are the type of diagenesis that make this sediments becomes a sedimentary rock as a sandstone? what are
the type of this rock and its texture? how we can classified this sedimentary rocks (sandstone)?
If you could, explain these process consecutively ( gias) from the moment that magma crystallized to form
igneous rock until it become a sedimentary rock as sandstone.
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