After studying chapter 6, go to the book's website, student edition and chapter 6. Take the multiple choice quiz and the matching quiz. Write the results of both tests and when you took them on a sheet of paper. This is item 1 of your new portfolio. (Keep, but don't hand in pages previously submitted.) For study purposes (but not for the portolio) you should go through the end of chapter quiz in the textbook.

For page 2 of your portfolio:

Go to Germany and visit the Jurassic Reef Park website <http://www.palaeo.de/edu/JRP/> . Click on "Welcome to Jurassic Reef Park." Then click "Introduction". A modern reef is described.
Q1. What does the author mean by "superorganism" and how does this apply to reefs?
Return and go to "Architects of Reefs".
Q2. What two corals are shown that are important reef builders? Q. What important role do algae play in helping coral grow as fast as 25 cm. per year?

Go to Chapter III. This is an entertaining comparison between real estate advertisements that might have run 150 million years ago and characteristics of building sites for reefs in the Jurassic period.
Q3. How do the sites 1 and 4 differ from one another? Note some of the photos of Jurassic fossils.

Near the end of the chapter is a map of the continents at the time showing Jurassic reefs.
Q4. How do we explain reefs at higher latitudes than present day reefs?

Optional (Do not include in portfolio) Go to the concluding chapter on what reefs tell us about the future of reefs and a changing climate. This interrelates the atmosphere, hydrosphere, biosphere, and solid earth system. Near the end of this chapter some of the consequences of deforestation, rising sea level and warming climate are given. What effects do the rapid deforestation of South American tropical forests have on coral reefs and the climate?
  This must all be on one page and is item 2 in your portfolio.

 For page 3:

Go to Union College's site about sedimentation in New York http://zircon.geology.union.edu/Gildner/stack.html (if the link doesn't work, type it out in your web browser) This describes what is known about Ordovician rocks in a portion of the state. The Ordovician period extended from 505 to 438 million years ago. Read the first page. Click on "Tectonics"
Q1. What was the source of the Ordovician sediments and how does this relate to plate tectonics?

Click on "Lithology". Read about interpreting the cross-section.
Q2. The oldest rocks throughout the study area are all what type? Younger rocks are ________ to the east and ________ to the west?
Q3. The Dolgeville Formation is composed of?

Click on "Paleocurrents" (ancient water current direction). The current directions were determined by the orientation of fossils (trilobites, graptolites, etc.).
Q5. From the map, what is the approximate orientation of the average paleocurrent direction?

Click on "Water Depth" and read the text.
Q6. The diagram indicates shallower depth of water to the east (west) or west (right)?

This must all be on one page and is item 3 in your portfolio.