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© RECENT AUDIO-VISUAL ACQUISITIONS

FEBRUARY, 1987

The Earth Explored Series 14 %" video 30 mins each
programs
including:

The Life and Work of Sir James Hutton:

The theory of uniformitarianism, the basis of modern
geology, began in Scotland with the work of this 18th
century scientist. This program visits the places
where Hutton's Theory was shaped; defines key geologic
terms used in field observation and study; summarizes
Hutton's theory of the earth; interprets physical
processes through field evidence and mapping, and
describes three locations where Hutton used field
evidence to support his theory.

Form and Function of Fossils:

The program describes how geologists reconstruct the
life habits of a particular fossil, emphasizing the

© different ways in which paleontologists determine the
swimming capabilities of extinct animals using homology
with living relatives, analogy with unrelated but
Similar organisms, or by using experimental models and
paleocological information such as a Mosasaur's tooth
marks.

Rocks and Minerals:

The science of geology is built upon an understanding
of rocks and minerals: their identification in the
field and under the microscope, and their uses in our
modern environment. This program presents basic
classification techniques ang prepares students for
field trip/laboratory lessons.

Sandstone Secrets:

Interpretation of sediments provide geologists with

many clues to the history of an area. The kind of
material which is deposited and the varying depositional
structures from streams and oceans are the subjects of
this program. The concepts of textural and composi-
tional maturity are defined and several types of bed-
forms are illustrated as theories of past environments

© are reconstructed.

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