Haywood Fault Fremont Central Park Virtual Field Trip Multiple Choice Questions

Overview

For our fourth homework assignment, we'll take a virtual field trip! Please follow the links in the assignment to go on virtual field experiences using Google Earth.

For each experience, please go stop by stop, reading all the text, viewing all the photos, and (when available) watching the video. As with all Youtube videos, automatically-generated captions are available by clicking the "CC" button at the bottom-right of the video screen; these can also be auto-translated into other languages by clicking the "Settings" button (which has a gear symbol) next to the "CC" button.

Complete the questions below as you go (do not wait until the end of the entire field experience). Each question is marked with the part of the field experience to which it corresponds. For example, for field experience #1 (Haywood Fault in Fremont's Central Park), there are 11 stops in the Table of Contents (including introduction, parking, credits, etc.). You will see the Table of Contents near the bottom-left corner of Google Earth as you take the tour. It looks like this:

Use the arrows here to move from stop to stop. For example, clicking the right-facing arrow in this image would advance the tour from stop 4/11 to stop 5/11. The first question in this assignment is labelled 4/11, and so it is asking about stop 4/11.

For our first virtual field experience, we will examine the Haywood fault, which passes right through Fremont's Central Park!

Please follow this link to begin the virtual field experience: https://earth.google.com/web/@37.54772427,-121.96628249,16.10883117a,1000d,35y,0h,0t,0r/data=MicKJQojCiExUHRZbTY0VEZHalpqR3JUem5DNl9mNDVEMGlKdmRpcF86AwoBMA?authuser=0 (Links to an external site.)

The first few "stops" are just about transportation and parking. The geology content begins at stop 4/11. Don't forget to read all the text, look at the photos, and watch any videos!

Flag this QuestionQuestion 10.1 pts

4/11 Q1

How many miles long is the Haywood fault? (see the text box in the upper-right at stop 4/11).

Group of answer choices5 miles

20 miles

75 miles

100 miles

150 miles

Flag this QuestionQuestion 20.1 pts

4/11 Q2

The trace of the Haywood fault in Fremont's Central Park is shown with a red path on Google Earth at stop 4/11. Is the fault here straight or curved?

Group of answer choicesstraight

curved

Flag this QuestionQuestion 30.15 pts

5/11

At stop 5/11, click on the "play" icon in the upper-right of the screen to begin playing the video.

Notice that the wood and the concrete along the fault have deformed differently: the wood bends and the concrete breaks. This is because the wood is:

Group of answer choicesyounger

weaker

more elastic

reinforced

Flag this QuestionQuestion 40.1 pts

6/11

The grassy mound at this location is there because the ground has been pushed up by:

Group of answer choicesa convergent plate boundary

volcanism

groundwater

transpression

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8/11

The pavement along the fault here is cracked and sunk down a little because at this location, a bend in the fault causes the two sides of the fault to move:

Group of answer choicesfaster

slower

away from each other

towards each other

Flag this QuestionQuestion 60.15 pts

9/11

The concrete curb along the street was built a few decades ago. In those few decades, the two halves have separated by a few:

Group of answer choicesmeters

centimeters

kilometers

liters

Flag this QuestionQuestion 70.15 pts

10/11

The Mission Peak has been pushed up along the Hayward/Calveras fault system, because this fault system steps/bends to the:

Group of answer choicesleft

right

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For our second virtual field experience, we will examine rocks exposed in Glen Canyon Park!

Please follow this link to begin the virtual field experience: https://earth.google.com/web/data=Mj8KPQo7CiExUUo2SFB1M0JzTU83azZDTzFFbGlWc3A3TTZxY1FwOVISFgoUMEI1MjgyMjVBMjBGQkZDMDE1RDg?authuser=0 (Links to an external site.)

The first few "stops" are just about transportation and parking. The geology content begins at stop 5/15. Don't forget to read all the text, look at the photos, and watch any videos! Stop 5 has a nice overview video (the auto-captions are quite good overall, but mis-caption "chert" as "shirt" and other words).

Flag this QuestionQuestion 80.15 pts

5/14 Q1

Notice that the rocks here are sedimentary. They are mainly "chert." What kind of sedimentary rocks are chert?

Group of answer choicesClastic

(Bio)Chemical

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5/14 Q2

There is also some "shale" here. What kind of sedimentary rocks are shale?

Group of answer choicesClastic

(Bio)Chemical

Flag this QuestionQuestion 100.15 pts

5/14 Q3

At 1:27 in the video, the guide (Callan Bentley) is standing with his right hand resting on the right side of what kind of fold? (if you are unsure, have a look back at our "Faults and Folds" lecture in the Module on Earthquakes, Faults and Folds).

Group of answer choicesanticline

syncline

decline

Flag this QuestionQuestion 110.15 pts

6/14

Notice that the light-colored chert is more resistant to erosion than the deep-red chert (that is, it does not erode away as easily). Why is this?

Group of answer choicesThe light-colored chert is felsic, whereas the deep-red chert is mafic.

The deep-red chert is broken by faults.

The deep-red chert contains thin layers of weaker shale.

The oxidizing iron that gives the deep red color weakens the deep-red chert.

Flag this QuestionQuestion 120.1 pts

7/14 Q1

The description says that fossils in the chert indicate that it is Jurassic in age. What Era of geologic time is the Jurassic Period a part of? (if you aren't sure, see the geologic time scale on page 132 of the lab manual, or here: http://fossils.valdosta.edu/home_time.html (Links to an external site.))

Group of answer choicesCenozoic

Mesozoic

Paleozoic

Proterozoic

Flag this QuestionQuestion 130.1 pts

7/14 Q2

Based on the environment in which these chert layers formed, these rocks have been:

Group of answer choicesmoved from a desert to a temperate environment

uplifted from deep below sea level

transported by human forces

Flag this QuestionQuestion 140.1 pts

8/14

The text here claims that the chert has been folded. How do we know that the chert layers did not simply form in these shapes? (if you are unsure, see the Dec. 1 lecture on Relative and Absolute Ages, in the Earth's History module).

Group of answer choicesThe Principle of Original Horizontality

The Principle of Inclusions

The Principle of Superposition

Flag this QuestionQuestion 150.1 pts

11/14

What kind of rock is exposed in the scarp of the slump in this video?

Group of answer choiceschert

shale

sandstone

limestone

basalt

andesite

rhyolite

granite

diorite

gabbro

Dwayne Johnson

Flag this QuestionQuestion 160.1 pts

13/14

The flat terraces, on which the road and a number of houses are built, used to be:

Group of answer choicesthe highest parts of the valley, until tectonics uplifted other parts

the lowest parts of the valley, until the river eroded deeper

steep slopes, until they were flattened by human development

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For our third virtual field experience, we will examine rocks exposed in Corona Heights Park!

Please follow this link to begin the virtual field experience:https://earth.google.com/web/data=Mj8KPQo7CiExS3Z6elhMWkFMYi16MUlWWnZQaW1nSzR5VFlZM28tT04SFgoUMDVBMjM5QTEyMzBERjU3NTQ2OTg?authuser=0 (Links to an external site.)

The first "stops" are just about transportation and parking. The geology content begins at stop 3/13. Don't forget to read all the text, look at the photos, and watch any videos!

Flag this QuestionQuestion 170.15 pts

4/13

At this stop, some basalt is visible, in addition to the chert. The text explains that this basalt, like the chert, formed on the seafloor. Where does most seafloor basalt form? (if you don't remember, have a look back at our "Earth's Interior and Plate Tectonics" lecture in the Plate Tectonics module, or do an internet search for something like "new ocean floor").

Group of answer choicesan oceanic trench (convergent plate boundary)

a mid-ocean ridge (divergent plate boundary)

a transform fault (transform plate boundary)

a cinder cone

a stratovolcano

Flag this QuestionQuestion 180.15 pts

5/13

At this stop, a fault is exposed in the cliff, sloping down from the upper-left to the lower-right of the image. This guide explains that this is a reverse fault. Assuming this is true, which side of the fault moved upwards (relative to the other side)?

If you are having trouble answering this, have a look at the "Faults and Folds" lecture in the Earthquakes, Folds, and Faults module), or do an internet search for "reverse fault diagram".

Group of answer choicesthe right side moved upwards

the left side moved upwards

neither; the two sides moved horizontally

Flag this QuestionQuestion 190.1 pts

7/13

The rock "serpentinite" is California's:

Group of answer choicesState Rock

most common type of rock

most valuable type of rock

Flag this QuestionQuestion 200.1 pts

12/13

Why is serpentinite difficult to build on?

Group of answer choicesIt is weak and easily splits apart

It is strong and hard to drill into

It expands when it gets wet

It is full of serpents