Earth System History 4e & Launchpad Solo For Earth System History (six Months Access)
4th Edition
ISBN: 9781319126087
Author: Steven M. Stanley, John A. Luczaj
Publisher: W. H. Freeman
expand_more
expand_more
format_list_bulleted
Question
Chapter 11, Problem 1RQ
To determine
The term ‘Precambrian shield’ and the place where it is present in North America.
Expert Solution & Answer
Answer to Problem 1RQ
The Precambrian shield is a large Precambrian portion of craton that is exposed to the surface of Earth. In North America, a Precambrian shield is present in Canada.
Explanation of Solution
The Precambrian shield is the nuclear area (that is exposed at Earth’s surface) of Precambrian rocks. The Precambrian includes 90% of the geologic time ranging from 4.54 billion years ago (when Earth formed) to 4 billion years later (start of the Cambrian period). Most of the geologic information about the Precambrian comes from cratons. Cratons are the large portion of the continents that are stable (have not undergone substantial tectonic deformation) since early Paleozoic time.
In Canada, the Precambrian shield is the largest. The Canadian Shield is one of the world’s largest geologic continental shields. This shield is primarily composed of igneous and metamorphic rocks but, also contain few sedimentary rocks.
Want to see more full solutions like this?
Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
Students have asked these similar questions
5.
a. the Earth
b. the Moon
c. the Sun.
d. the stars
Water
Vapolis
is the gas form of water.
liquid
6. When water evaporates, it changes from a
into a
gas.
7. Walking to school on a Spring day, Violet notices dew on the
ground. On her way home, the dew has disappeared. What
most likely has happened to the water?
3. Based on your knowledge of the water cycle, from what body
of water does the most water evaporate? Why?
What is the role of plants in the water cycle?
田
2, 3, 44 together
=
Chlorine
12)
Filtration
usty
Sanda
Gravel
(10
5,6, +7 together =
:: Aeration Tank :: Bar Screens
:: Disinfection if no tertiary treatment
:: Disinfection with tertiary treatment
:: Grit Chamber
Primary Sedimentation Tank
:: Primary Treatment :: Raw Sewage :: River
:: Secondary Sedimentation Tank
Secondary Treatment
Sludge Treatment :: Tertiary Treatment :: Treated Effluent
A 40-cm circular PPC pile is driven to a depth of 20 meters in the soil conditions shown
below. Calculate the (a) shaft resistance in the clay layer using the alpha method and the
(b) shaft resistance in the sand layer using the beta method.
Depth (m)
14
20
30
Stiff Clay
y = 19.8 kN/m³
Su = 130 kPa
a = 0.58
20-
Dense Sand
y = 18.8 kN/m³
Q=35º
8 = 2/34
Chapter 11 Solutions
Earth System History 4e & Launchpad Solo For Earth System History (six Months Access)
Knowledge Booster
Similar questions
- Figure 12.7: A. B.arrow_forwardA. B. C. D. E.arrow_forwardA) List and describe the six stages that led to the formation of Earth. 1. Nebular stage Gravity caused collapse of a rotating mass of dust and gas. 2. A star forms 3. Planetesimals form 4. The Sun ignites 5. Inner planets 6. Outer planets B) What does the presence of banded iron formation tell us about conditions in the early atmosphere and oceans? (Short answer , couple of sentences) C)What does the sediment core from Walvis Ridge, southern Atlantic Ocean, from 55-56 million years ago tell us about past climate? (Short answer , couple of sentences )arrow_forward
- A) List three things that can be measured from annual layers of ice cores. 1 2 3.arrow_forward1. Use the descriptions of shoreline features provided above to label the structures in Figures 12.5 and 12.6. The same feature may appear more than once. 2. Next to each of the features listed below, indicate whether it is the result of erosional or depositional processes.Sea stack: Wave-cut cliff:Spit:Barrier island:Baymouth bar:Marine terrace:arrow_forwardActivity 12.5B: Identifying Shoreline Features on a Topographic Map Pg 209The area shown on the Point Reyes, California, topographic map is located directly to the southwest of the San Andreas Fault, in a very tectonically active region (Figure 12.10). As a result, some of this region has recently been uplifted and exhibits characteristics of an emergent coastline. On the other hand, because of the general rise in sea level over the past several thousand years, other areas exhibit features associated with submergent coastlines. Refer to this topographic map to complete the following. 1. What type of shoreline feature is Drakes Estero (located near the center of the map)? 2. Point Reyes, located in the bottom-left corner of the map, is a headland undergoing severe wave erosion. What type of feature is Chimney Rock, located off the shore of Point Reyes? 3. Several depositional features near Drakes Estero are related to the movement of sediment by longshore currents. What type of…arrow_forward
- Activity 12.3: Wave Refraction Pgs 202-203Figure 12.2 is a map view of a headland along a coastline. The water depths are shown by blue contour lines. As you complete the following questions, assume that waves with a wavelength of 60 feet are approaching the shoreline from the bottom left of the figure. 1. At approximately what water depth-10, 20, 30, or 40 feet-will the approaching waves begin to touch bottom and slow down? (Hint: Recall that this occurs when the water depth is one-half the wavelength.) 2. Using the wave shown in Figure 12.2 as a starting point, sketch a series of lines to illustrate the wave refraction that will occur as the wave approaches the shore by following these steps:Step 1: Mark the position on the 30-foot contour line where the wave front will first touch bottom.Step 2: Knowing that the section of the wave that touches bottom will slow down first, sketch the shape of the wave front when it reaches the 20-foot contour line.Step 3: Using the same…arrow_forwardCan trace and tell me how they did itarrow_forwardCan someone show me how they would trace thisarrow_forward
- I need help with this part E.arrow_forwardDiscussion Question: Ecosystems Essentials A+ shof 1000 Exo-spil The Human Denominator Assignment As we learn about how the earth works, we learn to identify the different earth spheres and how they overlap and affect one another. An understanding of the Earth's systems and spheres takes practice. More importantly, we can see the "Domino Effect" of the spheres as they interact with one another. We have learned that while endogenic processes are separate from exogenic process, the lithosphere affects the atmosphere which affects the hydrosphere, and thearrow_forwardI need help with part c and darrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Applications and Investigations in Earth Science ...Earth ScienceISBN:9780134746241Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. TasaPublisher:PEARSON
Exercises for Weather & Climate (9th Edition)Earth ScienceISBN:9780134041360Author:Greg CarbonePublisher:PEARSON
Environmental ScienceEarth ScienceISBN:9781260153125Author:William P Cunningham Prof., Mary Ann Cunningham ProfessorPublisher:McGraw-Hill Education
Earth Science (15th Edition)Earth ScienceISBN:9780134543536Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. TasaPublisher:PEARSON
Environmental Science (MindTap Course List)Earth ScienceISBN:9781337569613Author:G. Tyler Miller, Scott SpoolmanPublisher:Cengage Learning
Physical GeologyEarth ScienceISBN:9781259916823Author:Plummer, Charles C., CARLSON, Diane H., Hammersley, LisaPublisher:Mcgraw-hill Education,
Applications and Investigations in Earth Science ...
Earth Science
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:PEARSON
Exercises for Weather & Climate (9th Edition)
Earth Science
ISBN:9780134041360
Author:Greg Carbone
Publisher:PEARSON
Environmental Science
Earth Science
ISBN:9781260153125
Author:William P Cunningham Prof., Mary Ann Cunningham Professor
Publisher:McGraw-Hill Education
Earth Science (15th Edition)
Earth Science
ISBN:9780134543536
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:PEARSON
Environmental Science (MindTap Course List)
Earth Science
ISBN:9781337569613
Author:G. Tyler Miller, Scott Spoolman
Publisher:Cengage Learning
Physical Geology
Earth Science
ISBN:9781259916823
Author:Plummer, Charles C., CARLSON, Diane H., Hammersley, Lisa
Publisher:Mcgraw-hill Education,