Department
of Earth Science |
Northeastern
Illinois University
INTRODUCTION TO EARTH SCIENCE
ESCI 121
Section 06
Fall 2009
Department
of Earth Science |Northeastern
Illinois University
Daily
Objectives #15 (October
22, 2009)
Dr. Sanders
By the end of today's class, you should be able to do the following:
VOLCANOES
w List the
geotectonic settings in which volcanoes occur (subduction zones, divergent
zones, hotspots).
w
Tell why volcanoes occur at
each of these settings.
w Tell what
makes rock melt in the crust and mantle settings where volcanoes occur.
Describe the process in terms of changing temperature, changing pressure, and
introduction of "impurities" (water and sediments) into the melt.
w Draw
a graph illustrating the varying conditions that lead to rock melting.
LATITUDE AND LONGITUDE
w Describe the
longitude and latitude coordinate system for locating points on Earth's surface.
w
Find the approximate (degrees) latitude and
longitude of a general area using a world map.
w
Explain how the measurement units of degrees,
minutes, and seconds are used to indicate latitude and longitude.
w
Find precise latitude and longitude coordinates
of a specific site using a topographic quadrangle map.
w Explain what is meant
by "7.5 minute series" in reference to a topographic quadrangle map.
w Log in to the
class wiki and add your name to the "Earthquake Maps" list. Find the
latitude and longitude coordinates of the study area for which you sign up.