Department of Earth Science |Northeastern Illinois University

INTRODUCTION TO EARTH SCIENCE
ESCI 121
Section 06
Fall 2009

Daily Objectives #21  (November 17, 2009)                                                                                                         Dr. Sanders

By the end of today's class, you should be able to do the following:

EARTHQUAKE MAPS AND GEOTECTONICS

w  (Complete last week's exercise)  Using the earthquake maps the class produced, arrange them in meaningful groups based on the patterns of earthquake epicenters and based on the patterns of focal depths you observe in each.  The worksheet appears at this link. 


TOPOGRAPHIC MAPS

w   List and explain the components that are common to all well-made maps:

        title            key or legend    coordinate system
        scale        north arrow 

w   Using the scale on a topographic map, find the distance between two points.

w   Define these terms:   

            ○ topography           ○ topographic map           ○ contour line        ○ contour interval

w   Using the green globs of "playdough", sculpt a model of a hill, scribe contour lines into your sculpture, and based on your model, sketch a topographic map of the area.

w   Using a topographic map, find the elevation of a point.

w   Using a USGS topographic map, identify these landforms/features:

            ○  hill                               ○  valley                                   ○  closed depression (basin)
            ○  stream                        ○  intermittent stream            ○  lake

w   Determine the direction a stream flows based on a topographic map.