History Layer By Layer

Duration: 23

Year Published: 1967

Creator: Inc

Format: 16mm

Color: Color

Description: Explains the importance of taking core samples from the ocean bottom and how this helps map the past history of our earth. Uses macro- and micro-photography to show the work of Dr. Erickson of Lamont-Columbia University in studying and classifying specimens from the core. Portrays the life aboard the R. V. Vema, research vessel, including animated drawings of equipment used in collecting specimens., Showing the massive piston corer of the research schooner Vema as it probes the depths of the sea for samples, the film demonstrates how sediment cores are recovered from the ocean floor. Shows detailed laboratory examination of the cores to revea the early history of the earth.

Complete Record: Explains the importance of taking core samples from the ocean bottom and how this helps map the past history of our earth. Uses macro- and micro-photography to show the work of Dr. Erickson of Lamont-Columbia University in studying and classifying specimens from the core. Portrays the life aboard the R. V. Vema, research vessel, including animated drawings of equipment used in collecting specimens., NOTE: Two (or more) records have been merged together to create this data.