Can anyone help me with this? Or some of it? Please and thanks a lot.
Which are the he minerals below that you would be most likely to find in a felsic igneous rock, such as granite?
Quartz SiO2
Olivine (Mg,Fe)2SiO4
Biotite mica K(Mg,Fe)3(AlSi3O10)(F,OH)
Potassium feldspar (orthoclase) KAlSi3O8
Plagioclase feldspar (albite) NaAlSi3O8
Muscovite mica KAl2(AlSi3O10)(F,OH)2
* From the following rock which ones cools the fastest and which ones cools the slowest in order: porphyritic granite, gabbro, basalt, pumice, porphyritic rhyolite. and why?
3. For each description below, name the igneous rock.
a. You observe a fine-grained, mafic rock.
b. You observe a course-grained, felsic rock.
c. You observe a vesicular, mafic rock.
d. You observe a course-grained, mafic rock.
e. You observe a mostly fine-grained, felsic rock with larger embedded crystals.
4. List the following steps in the formation of a detrital sedimentary rock in the correct order from first to last: lithification, weathering, transportation, deposition.
Which are the he minerals below that you would be most likely to find in a felsic igneous rock, such as granite?
Quartz SiO2
Olivine (Mg,Fe)2SiO4
Biotite mica K(Mg,Fe)3(AlSi3O10)(F,OH)
Potassium feldspar (orthoclase) KAlSi3O8
Plagioclase feldspar (albite) NaAlSi3O8
Muscovite mica KAl2(AlSi3O10)(F,OH)2
* From the following rock which ones cools the fastest and which ones cools the slowest in order: porphyritic granite, gabbro, basalt, pumice, porphyritic rhyolite. and why?
3. For each description below, name the igneous rock.
a. You observe a fine-grained, mafic rock.
b. You observe a course-grained, felsic rock.
c. You observe a vesicular, mafic rock.
d. You observe a course-grained, mafic rock.
e. You observe a mostly fine-grained, felsic rock with larger embedded crystals.
4. List the following steps in the formation of a detrital sedimentary rock in the correct order from first to last: lithification, weathering, transportation, deposition.
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For the granite question:
Quartz, Mica (Biotite/Muscovite), and Orthoclase.
(To answer this yourself, learn Bowens Reaction Series in the future, look under "felsic rock" for granite)
A: Basalt
B: Granite
C: Vesicular Basalt
D: Gabbro
E: I would say a Rhyolite tuff, but Im not sure if thats what the question is implying
(Remember, coarse grained, easy to see minerals, fine grained looks almost homogeneous)
4. Detrial means often visible, clastic grains, and with a little bit of logic you can put it together:
Weathering (breaking apart)
Transportation (moving broken pieces)
Deposition (setting down the pieces)
Lithification (Means "turned to stone", or in geology, made into sedimentary rock)
Quartz, Mica (Biotite/Muscovite), and Orthoclase.
(To answer this yourself, learn Bowens Reaction Series in the future, look under "felsic rock" for granite)
A: Basalt
B: Granite
C: Vesicular Basalt
D: Gabbro
E: I would say a Rhyolite tuff, but Im not sure if thats what the question is implying
(Remember, coarse grained, easy to see minerals, fine grained looks almost homogeneous)
4. Detrial means often visible, clastic grains, and with a little bit of logic you can put it together:
Weathering (breaking apart)
Transportation (moving broken pieces)
Deposition (setting down the pieces)
Lithification (Means "turned to stone", or in geology, made into sedimentary rock)