Homework Answers
Here the mineral composition is 1 % quartz, 47%orthoclase,2%plagioclase,50%mafic.
Normalized
the quartz,orthoclase and plagioclase into 100 then
quartz=2%,orthoclase=94% and plagioclase=4%, then plot this mineral
in QAP diagram(quartz-alkali-feldsper-plagioclase) and the mineral
belongs to the Alkali trachyte field. So the identified fine
grained igneous rock for the following mineral percentages is
Alkali trachyte. 
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Quartz and tridymite and cristobalite Quartzolite Volcanic rocks Alkall rhyolite Rhyolite Rhyodacite Dacite Quartz andesite Alkali-quartz...
Based on the image below, what would rock classification would be appropriate for an igneous rock...
Based on the image below, what would rock classification would be appropriate for an igneous rock containing 19% Olivine, 43% Pyroxene, 36% Calcium-rich Plagioclase, and 2% Hornblende? Composition Rock types FELSIC Granite Rhyolite INTERMEDIATE Diorite Andesite MAFIC Gabbro Basalt ULTRAMAFIC Peridotite Orthoclase feldspar Quartz Plagioclase feldspar Percentage of mineral by volume (Calcium-rich) (Sodium-rich) Pyroxene Muscovite Biotite mica Olivine Amphibole 70% 40% Silica content Sodium and potassium content Iron, magnesium, and calcium content 700'C Temperature at which melting starts 1200C) Felsic...
4) is a major dissolved volatile constituent in both magmas and volcanic gases. A) Water B)...
4) is a major dissolved volatile constituent in both magmas and volcanic gases. A) Water B) Carbon monoxide C) Hydrogen chloride D) Methane 5) Which one of the following shows the correct order (left to right) of decreasing magma viscosity? A) rhyolite, andesite, basalt B) andesite, rhyolite, basalt C) basalt, rhyolite, andesite D) basalt, andesite, rhyolite 6) Why do magmas rise toward Earth's surface? A) Magmas are more viscous than solid rocks in the crust and upper mantle. B) Most...
What properties cause some magmas to be more felsic thanothers?Different minerals crystallize at different...
What properties cause some magmas to be more felsic than others?Different minerals crystallize at different temperatures, changing the chemistry.Some parts of the mantle are felsic and some are mafic, creating felsic magma in the crust.Water from subducting ocean plate mixes with the magma to create felsic magmaAnimals change the chemistry of the magma, making it more felsic.Silica content in igneous rocks controls (select the correct term)["texture", "viscosity", "crystal size"] which, in turn, controls ["eruption style", "crystal size"] ...
i need help with all thank you 97. A Nuée ardente is a phenomenon associated with...
i
need help with all thank you
97. A Nuée ardente is a phenomenon associated with lava flows 98. Volcanic vents that emit only gases are called fumaroles 99 The volcanoes of the Cascade Range are primarily cinder cone volcanoes ESSAY /FILL-IN 100. What type of magma composition is commonly erupted on the continents along a 102. A Place your anavwera to questions on the answer sheet provided by your in apropriate word, phrase, or short essay to answer the...
Gneiss is a metamorphic rock that is: 13. O foliated and contains microscopic minerals O foliated...
Gneiss is a metamorphic rock that is: 13. O foliated and contains microscopic minerals O foliated and has low grade of metamorphism O foliated and contains visible minerals non-foliated with visible minerals Non-foliated metamorphic rocks generally are: composed of a few visible minerals surrounded by a microscopic matrix composed of many visible crystals of different composition composed by many microscopic minerals of different composition O composed of microscopic minerals of the same composition composed of many visible crystals of the...
1. Endogenic processes include a. Internal processes b. Volcanic activity c. Tectonic activity d. All of the above 2. Wh...
1. Endogenic processes include a. Internal processes b. Volcanic activity c. Tectonic activity d. All of the above 2. Which of these is not a exogenic process a. Weathering b. erosion c. volcanic activity d. mass wasting 3. The continents and ocean basins are located in the: a. Crust b. Mantle c. Core d. Asthenosphere 4. The oceanic crust is __________ and __________ than continental crust. a. thicker; denser b. thinner; denser c. thicker; less dense d. thinner; less dense...
1. Draw the appropriate symbol on each fold. 2. Draw the appropriate symbol to represent the...
1. Draw the appropriate symbol on each fold.
2. Draw the appropriate symbol to represent the structures
separating units I and H.
1. I filled in the origin and tectonic setting as much
as I could. I'm not sure about sea level rise and fall, regression
and transgression.
Sedimentary Igneous Metamorphic = Bonus D Bonus C Bonus B F/G/H. Bonus A Sample Rock Name Quartz conglomerate Quartz sandstone Shale Fossil Limestone Micrite F Slate Phyllite H I Mica schist Biotite...
noic arains ehtly md shale Lab #4 M maine too Has alie aplits hoets Lab #4:...
noic arains ehtly md shale Lab #4 M maine too Has alie aplits hoets Lab #4: Metamorphic Rocks or more slowle a. When the isotherms are more closely spaced, is the temperature changing more guickly Circle one. ls me 3. The rate at which the temnerature increases with denth is called the geothermal gradient. bndan b. On the diagram on the previous page there is a vertical line marked A. This line represents about 40 km on the diagram. Calculate...
1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. Which of the following...
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2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
Which of the following statements is TRUE? Horizontal layers in sedimentary rocks are called "beds". Evaporites (e.g., rock salt) have a purely biological origin. Shale is a coarse-grained rock. A clastic sedimentary rock is one that forms from the precipitation of calcite from seawater Which of the following is MOST likely to trigger a rapid mass wasting process? a large earthquake decrease in moisture content reduction of mass...
In this assignment, you will identify some minerals. The ability to identify minerals is one of...
In this assignment, you will identify some minerals. The
ability to identify minerals is one of the most fundamental
geological skills. It is an essential skill in identifying rocks,
for one must first identify the minerals within a rock before the
rock itself can be identified. Only after minerals and rocks have
been identified can their origin, classification, and alteration be
adequately understood. The ability for a geologist to identify
minerals by using the simplest tools is often a necessity,...
Based on the image below, what would rock classification would be appropriate for an igneous rock containing 19% Olivine, 43% Pyroxene, 36% Calcium-rich Plagioclase, and 2% Hornblende? Composition Rock types FELSIC Granite Rhyolite INTERMEDIATE Diorite Andesite MAFIC Gabbro Basalt ULTRAMAFIC Peridotite Orthoclase feldspar Quartz Plagioclase feldspar Percentage of mineral by volume (Calcium-rich) (Sodium-rich) Pyroxene Muscovite Biotite mica Olivine Amphibole 70% 40% Silica content Sodium and potassium content Iron, magnesium, and calcium content 700'C Temperature at which melting starts 1200C) Felsic...
4) is a major dissolved volatile constituent in both magmas and volcanic gases. A) Water B) Carbon monoxide C) Hydrogen chloride D) Methane 5) Which one of the following shows the correct order (left to right) of decreasing magma viscosity? A) rhyolite, andesite, basalt B) andesite, rhyolite, basalt C) basalt, rhyolite, andesite D) basalt, andesite, rhyolite 6) Why do magmas rise toward Earth's surface? A) Magmas are more viscous than solid rocks in the crust and upper mantle. B) Most...
i
need help with all thank you
97. A Nuée ardente is a phenomenon associated with lava flows 98. Volcanic vents that emit only gases are called fumaroles 99 The volcanoes of the Cascade Range are primarily cinder cone volcanoes ESSAY /FILL-IN 100. What type of magma composition is commonly erupted on the continents along a 102. A Place your anavwera to questions on the answer sheet provided by your in apropriate word, phrase, or short essay to answer the...
Gneiss is a metamorphic rock that is: 13. O foliated and contains microscopic minerals O foliated and has low grade of metamorphism O foliated and contains visible minerals non-foliated with visible minerals Non-foliated metamorphic rocks generally are: composed of a few visible minerals surrounded by a microscopic matrix composed of many visible crystals of different composition composed by many microscopic minerals of different composition O composed of microscopic minerals of the same composition composed of many visible crystals of the...
1. Draw the appropriate symbol on each fold.
2. Draw the appropriate symbol to represent the structures
separating units I and H.
1. I filled in the origin and tectonic setting as much
as I could. I'm not sure about sea level rise and fall, regression
and transgression.
Sedimentary Igneous Metamorphic = Bonus D Bonus C Bonus B F/G/H. Bonus A Sample Rock Name Quartz conglomerate Quartz sandstone Shale Fossil Limestone Micrite F Slate Phyllite H I Mica schist Biotite...
noic arains ehtly md shale Lab #4 M maine too Has alie aplits hoets Lab #4: Metamorphic Rocks or more slowle a. When the isotherms are more closely spaced, is the temperature changing more guickly Circle one. ls me 3. The rate at which the temnerature increases with denth is called the geothermal gradient. bndan b. On the diagram on the previous page there is a vertical line marked A. This line represents about 40 km on the diagram. Calculate...
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
Which of the following statements is TRUE? Horizontal layers in sedimentary rocks are called "beds". Evaporites (e.g., rock salt) have a purely biological origin. Shale is a coarse-grained rock. A clastic sedimentary rock is one that forms from the precipitation of calcite from seawater Which of the following is MOST likely to trigger a rapid mass wasting process? a large earthquake decrease in moisture content reduction of mass...
In this assignment, you will identify some minerals. The
ability to identify minerals is one of the most fundamental
geological skills. It is an essential skill in identifying rocks,
for one must first identify the minerals within a rock before the
rock itself can be identified. Only after minerals and rocks have
been identified can their origin, classification, and alteration be
adequately understood. The ability for a geologist to identify
minerals by using the simplest tools is often a necessity,...
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