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Do Granite and Gabbro have the same chemical composition?
No. Gabbro is a mafic rock (magnesium and iron silicates) while granite is a felsic rock (referring to lighter elements such as potassium in feldspar). Felsic rock contains fewer heavy elements than mafic rocks. The chemical equivalent to gabbro is basalt, as both are mainly pyroxene and plagioclase feldspar. The difference is that gabbro is intrusive rock and basalt is extrusive.
What do granite and basalt in common?
They are both lithospheric igneous rocks formed by the cooling and solidification of magma/lava and both of them contains silicon.
How can you tell that the sandstone was not deposited on top of basalt layers?
The sandstone layer is older than the basalt. The older rock cannot be on top of the younger rock. The sandstone and the basalt (or basalt dike) are both deposited at the same depth.
What would you expect to see underneath the layer of granite?
Well, beneath granite you would find any layer of Mafic igneous rock. Basalt is the most common Mafic rock, so that's a good start. It's what you will typically find forming the ocean floor as well as the heavy layer of the earth's crust beneath the granitic layers.
Is granite the plutonic equivalant of rhyolite?
Yes. Granite and Rhyolite have the same composition.
What do basaltic and granitic magmas have in common?
Basalt and Granite are both made from the same magma.
What mineral is commonly found in granite but not found in basalt?
potassium feldspar i think I had this same question in one of my earth science homeworks and thats what i put so hopefullt its right.
How is it possible to finde pieses of gneiss granite and basalt in a single conglomerate?
Pieces of gneiss, granite, and basalt can be found in the same conglomerate rock through a process known as sedimentary mixing. This occurs when rocks of different types are broken down into smaller fragments and then carried by water or wind to a new location where they become cemented together in a conglomerate.
Which intrusive and extrusive rocks have the same chemical composition?
Intrusive: Extrusive Equivalent Granite: Rhyolite Diorite: Andesite Gabbro: Basalt
Do Granite and Gabbro have the same chemical composition?
No. Gabbro is a mafic rock (magnesium and iron silicates) while granite is a felsic rock (referring to lighter elements such as potassium in feldspar). Felsic rock contains fewer heavy elements than mafic rocks. The chemical equivalent to gabbro is basalt, as both are mainly pyroxene and plagioclase feldspar. The difference is that gabbro is intrusive rock and basalt is extrusive.
What do granite and basalt in common?
They are both lithospheric igneous rocks formed by the cooling and solidification of magma/lava and both of them contains silicon.
How can you tell that the sandstone was not deposited on top of basalt layers?
The sandstone layer is older than the basalt. The older rock cannot be on top of the younger rock. The sandstone and the basalt (or basalt dike) are both deposited at the same depth.
What is the difference between homologues and analogues?
homologues= same function different origin analogues= same origin with possibly a different function
What would you expect to see underneath the layer of granite?
Well, beneath granite you would find any layer of Mafic igneous rock. Basalt is the most common Mafic rock, so that's a good start. It's what you will typically find forming the ocean floor as well as the heavy layer of the earth's crust beneath the granitic layers.
Are granite and rhyolite similar in a way?
Yes. Rhyolite and granite have the same composition. Rhyolite is the volcanic equivalent of granite.
Is granite the same mineral as quartz?
The most abundant minerals in granite are potassium feldspar, plagioclase feldspar, and quartz; with differing amounts of muscovite, biotite, and hornblende-type amphiboles. The most abundant minerals in basalt are amphibole and pyroxene, sometimes plagioclase, feldspathoids, and/or olivine. In other words, no.
Do all igneous rocks have the same mineral composition?
Certainly not: Igneous rocks vary in mineralogy from Felsic to Mafic, which encompassed all sorts of compositions. Does a Granite appear the same as a Basalt? No, because they have different mineralogies, and different minerals have different colours and textures. This is visible in every rock.
