Home Homework Help Textbooks Test Prep Textbook Answers

Homework Help

Science
Earth sciences
need the answer to this table and questions please...

Question: need the answer to this table and questions please...

Question details

Need the answer to this table and questions please.

C Geoscientists who study the propagation of earthquake energy through Earthsin ake energy through Earths interior-seismologists-indicate that the average density of the uppermost upper mantle is around 3.3 g/am. Where it is hot enough, the I. Seismologists indicate that the average thickness of mantle is able to flow basaltic ocean crust is about 7 km, As a thought experiment, imagine that a particular bit of solid oceanic crust with the same bulk density that you in a sea of upper mantle material that has a bulk density of 3.3 g/cm, and that is hot enough to flow. <1 cakculated for basalt is floating is on top of a relatively cool, solid part of the upper mantle that does not flow, but lets not spoil the uoyancy, and isostasy to estimate (i.e, to fun with details.) Use what you have learned about Archimedes Principle, h calculate) how high (in km) basalt t would float in a viscous, flowing upper mantle. Show your work, The upper surface of oceanic crust in this imaginary world would be about mantle. km above the level of the upper 2. Seismologists indicate that the average thickness of granitic continental crust is about 35 kilometers. Make the same kind of calculation you just completed in section CI, but this time, use the average density you determined for granite to estimate how high granitic continental crust would float in a viscous, flowing upper mantle The upper surface of continental crust in this imaginary world would be about_ km above the level of the upper mantle. 3. What is the difference (in km) between your answers in CI and C2? 4. How does this difference between CI and C2 compare to the actual difference between the average continents and average depth of oceans on the hypsographic curve (Fig. 1.11c)i D REFLECT & DISCUSS Reflect on allof your work in this laboratory so far. Esplain why Earth has a bimodal global topography E REFLECT&DISCUSS How is a mountain like the iceberg in Fig. 1.9B

Figure A1.5.1 B As exactly as you can, determine the mass and volume of a small sample of granite. Follow the same methodology for measuring Calculate the density of your sample of granite to 10ths of a g/cm. Then determine the descriptive statistics for all 10 lines of sample data in the granite density chart. g the granite that you used in the previous section. Add your data to the granite density chart (Fig. A1.5.2). GRANITE DENSITY CHART Granite Sample Number Sample Mass (g) Sample Volume (cm3) Sample Density (g/cm) 2.7 2.8 2.8 2.8 2.9 2.8 2.9 2.8 2.6 12 10 10 32.1 27.8 27.6 31.1 58.6 62.1 28.8 82.8 52.2 2 4 5 20 10 30 20 8 10 Density of granite g/cm3 Median g/cm? Standard Deviation= Average or Mean = n=-g/cm3 Modes Figure A1.5.2

Solution by an expert tutor

Blurred Solution

This question has been solved

Subscribe to see this solution