Integrated Science
7th Edition
ISBN: 9780077862602
Author: Tillery, Bill W.
Publisher: Mcgraw-hill,
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Chapter 15, Problem 3PEA
To determine
The height of the ice block that will be exposed above water.
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Earth's mass ia 6x10^24 kg and its radius is 6.4x10^6 m.
What is the average mass density of Earth?
The density of the rocks compromising Earth's outermost layer (its "crust") ranges from 2000 to 3500 kg/m ^3.
Based on your answer, what can you conclude about the material deep inside Earth's interior?
HEIGHT OF A CONTINENT ABOVE THE MANTLE. In the figure below, a
simple model considers a continent as a block (density = 2,800 kg/m^3)
floating in the mantle (density = 3,300 kg/m3). Assuming the continent is
35 km thick (the average thickness of the Earth's crust), estimate the
height (in km) of the continent above the surrounding mantle.
Continent
(density = 2800 kg/m3)
mg
Mantle rock (density = 3300 kg/m³)
5.3.
7.4.
9.8
12.
17.
Earth's surface area is 5.10x10^8 km^2 .Earth's crust has a thickness (or depth) of 35 km and density 2.8 g/cm^3 for earth's crust.
a) Calculate the volume of earth's crust in km^3
b) Express your answer from part (a) in cm^3
c) Calculate the mass of the crust tons (t) : 1 ton=1000kg
d) Silicon's concentration in earth's crust is 2.72x105grams/ton. Calculate the mass of silicon (in grams) present in earth's crust.
Chapter 15 Solutions
Integrated Science
Ch. 15.1 - Sedimentary rocks are formed by the processes of...Ch. 15.1 - Which type of rock probably existed first,...Ch. 15.2 - Prob. 3SCCh. 15.2 - Prob. 4SCCh. 15.2 - Prob. 5SCCh. 15.2 - Prob. 6SCCh. 15.2 - Prob. 7SCCh. 15.3 - Prob. 8SCCh. 15.3 - According to the plate tectonics theory, seafloor...Ch. 15.3 - Prob. 10SC
Ch. 15.3 - Prob. 11SCCh. 15.3 - The ongoing occurrence of earthquakes without...Ch. 15 - Prob. 1CQCh. 15 - Prob. 2CQCh. 15 - Prob. 3CQCh. 15 - Prob. 4CQCh. 15 - What is the difference between magma and lava?Ch. 15 - Prob. 6CQCh. 15 - Prob. 7CQCh. 15 - Prob. 8CQCh. 15 - Prob. 9CQCh. 15 - Prob. 10CQCh. 15 - Prob. 11CQCh. 15 - Prob. 12CQCh. 15 - Prob. 13CQCh. 15 - Prob. 14CQCh. 15 - Prob. 15CQCh. 15 - Prob. 16CQCh. 15 - Prob. 17CQCh. 15 - Prob. 18CQCh. 15 - Prob. 19CQCh. 15 - Prob. 20CQCh. 15 - Prob. 21CQCh. 15 - Prob. 22CQCh. 15 - Why are there no active volcanoes in the eastern...Ch. 15 - Prob. 24CQCh. 15 - Prob. 25CQCh. 15 - Prob. 26CQCh. 15 - Prob. 27CQCh. 15 - If the distance between the city of Charleston,...Ch. 15 - Prob. 2PEACh. 15 - Prob. 3PEACh. 15 - Prob. 4PEACh. 15 - Prob. 1PEBCh. 15 - Prob. 2PEBCh. 15 - Wood floating in water can demonstrate how the...Ch. 15 - Prob. 4PEB
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- With the information from Exercise 8.25, you can calculate the average age of the ocean floor. First, find the total area of the ocean floor (equal to about 60% of the surface area of Earth). Then compare this with the area created (or destroyed) each year. The average lifetime is the ratio of these numbers: the total area of ocean crust compared to the amount created (or destroyed) each year.arrow_forwardExplain how continental crust and oceanic crust are like icebergs in water.arrow_forwardApproximately what percentage of Earth’s radius is represented by the crust?arrow_forward
- The average elevation of Arabian peninsula (freeboard) is f=400 m. Considering that the oceanic crust is h=5 km of thickness and the sea average depth is D= 3700 m. (pc=2700 kg/m3, po=3000 kg/m3, pm=3300 kg/m3 pw=1000 kg/m3) What is the thickness H of the continental crust. B. If the Musandam has an average elevation of 800 m. How much is the thickness below Musandam considering stacking of sedimentary layers and not erosion.arrow_forwardYou are on an oceanographic research expedition that began in San Juan, Puerto Rico on September 14. The ship left port at 0630 hr on 14 September and covered a distance of 1608 km to the first drill location (Site 1) where you are going retrieve a drill core of seafloor sediments. The ship arrived at the first drill site at 1800 hr on 16 September. Calculate the rate of travel (i.e., speed) of the ship during its transit to the first drill site.arrow_forwardThe Greenland ice sheet extends 1.7e12 m2, and average 2,100 meter thick. The area of the world oceans is 360e12 m2. Assume ice and water have about the same density. The sea level will rise _____ meter if the Greenland ice sheet is all melted.arrow_forward
- The Earth's mid-ocean ridges create about 1.029 cm of new crust over their 1943 km length every year. How much new crustal area (in km2) will this process create in 108 years?arrow_forwardThe Lithosphere is made of the two types of crust, denser oceanic crust and thicker conteniental crust, plus the upper rigid part of the mantle. The Lithosphere float on the semi-liquid Asthenosphere. The Asthenosphere moves through a process known as convection. The convection form currents moving hotter less dense mantle toward the surface where it cools becomes denser and sinks. Another name for the asthenosphere is the ?arrow_forwardAsh from the volcano settled out of the atmosphere and covered an area of 157,000km ^2 assuming the ash was 1.00mm deep and evenly spread over the circular area centred on the volcano what is the volume of ash erupted from the volcano answer in m^3 and scientific notationarrow_forward
- Antarctica is roughly semicircular in shape, with a radius of 2000 km. The average thickness of the ice cover is 3000 m. How many metric tons (1metric ton = 1000 kg) of ice cover Antarctica? (Consider: density of ice = 0.919 gram per cubic centimeter)arrow_forwardThe glaciers of Greenland have a total area of approximately 18 × 10^12 ft^2 and an average depth of 1.0 mile. What is the volume of water that would be released if all the glaciers were to melt? Given that oceans cover 70% of planet earth and the earth radius is approximately 6,371 kilometers, how much would ocean levels rise? (Neglect differences in the density between ice and water and changes in ocean coverage upon rising sea levels)arrow_forwardAn earthquake occurs 6,875 km from a seismograph. The P-waves arrive 11.6 minutes later. How fast is the P-wave traveling (in km/s)? If the lag time between P- and S-waves is 10.8 minutes, how fast are the S-waves traveling (in km/s)? Using the shadow of S-waves you determine that the radius of the core is 55% of the Earth's 6,378-km radius. How many kilometers from the surface is this (in km)? To calculate how fast the P-waves are traveling, we need to divide the distance the waves travel by the time. vP = d s vP = km/sarrow_forward
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