0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
What clasts would you obtain if you crushed gabbro?
When you crushed Gabbro you would obtainOlivine, Pyroxene(Augite), and Plagioclase
Can gabbro contain mineral quartz?
No, gabbro does not typically contain mineral quartz. Gabbro is a coarse-grained igneous rock composed primarily of calcium-rich plagioclase feldspar and pyroxene minerals. Quartz is not a common mineral in gabbro; it is more common in granitic rocks.
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 minerals would you expect to find in a sample of gabbro?
Expect to find plagioclase in most phaneritic igneous rocks and often as phenocryts in aphanitic rocks. ... You will also find quartz grains resist scratching with a nail or pocket knife, ... The answer is that in hand samples it is nearly impossible. ... rhyolites while pyroxene occurs in dark-colored rocks like gabbro and basalt).
Why does gabbro have a higher chemical weathering rate than granite?
Gabbro is mafic intrusive igneous rock and contains olivine, pyroxene, plagioclase and amphibole. These minerals are unstable at low pressure temperature conditions. In contrast, granite is felsic intrusive igneous rock and contains high amounts of quartz and orthoclase. Stability of minerals are increasing top to bottom in Bowen's Reaction Series.
Which minerals are found in basalt and gabbro?
olivine and pyroxene
What clasts would you obtain if you crushed gabbro?
When you crushed Gabbro you would obtainOlivine, Pyroxene(Augite), and Plagioclase
Which minerals are found in the igneous rocks gabbro and basalt?
Olivine and Pyroxene
Can gabbro contain mineral quartz?
No, gabbro does not typically contain mineral quartz. Gabbro is a coarse-grained igneous rock composed primarily of calcium-rich plagioclase feldspar and pyroxene minerals. Quartz is not a common mineral in gabbro; it is more common in granitic rocks.
What is the chemical formula for Gabbro?
Gabbro rock is in the same family as Basalt rock and there for has similar chemical composition. Basalt is nearly half composed of silica and has other minerals in much smaller percentages such as titanium dioxide, iron oxide, aluminum and magnesium.
What is the percentage of olivine in gabbro?
9%
Which is a coarse-grained igneous rock composed of mainly pyroxene plagioclase feldspar and olivine?
Gabbro.
What makes gabbro a rock and not a mineral?
Gabbro is usually made up of minerals such as pyroxene, plagioclase, amphibole and olivine which makes it an intrusive igneous rock.
What intrusive igneous rock is composed of 18 percent olvine 48 percent pyroxene and 34 percent plagioclase?
Gabbro is made of these minerals. The proportions can vary.
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.
Which intrusive igneous rock could be composed of 60 percent pyroxene 25 percent plagioclase feldspar 10 percent olivine and 5 percent amphibole?
gabbro
What is an example of a mafic rock?
Mafic rock is an example of igneous rock which is dominated by olivine, silicates pyroxene, mica, and amphibole. Common mafic rock samples are basalt and gabbro.
