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Related Experiment Video

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Simulating Imaging of Large Scale Radio Arrays on the Lunar Surface

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Apollo 17 seismic profiling: probing the lunar crust.

R L Kovach, J S Watkins

Science (New York, N.Y.)

|June 8, 1973

Summary

Apollo 17 seismic data reveal a stepwise increase in seismic velocity below the Taurus-Littrow region. This indicates a lunar crust structure with approximately 1200 meters of mare basalts and high-velocity material underneath.

Area of Science:

Lunar geology
Seismology
Planetary science

Background:

Understanding the Moon's subsurface structure is crucial for planetary evolution studies.
Previous seismic investigations have provided limited resolution of the lunar crust.

Purpose of the Study:

To interpret Apollo 17 seismic data to determine lunar crustal structure.
To analyze seismic velocity variations beneath the Taurus-Littrow region.

Main Methods:

Analysis of seismic data collected during the Apollo 17 mission.
Interpretation of seismic wave propagation to infer subsurface layering and properties.

Main Results:

A distinct stepwise increase in seismic velocity was observed beneath the Apollo 17 site.

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The mare basalts at Taurus-Littrow are estimated to be approximately 1200 meters thick.

High seismic velocities (around 4 km/s) characterize the material directly below the basalts.

Conclusions:

The seismic data delineate a layered structure within the lunar crust at the Apollo 17 landing site.
The findings provide insights into the composition and structure of the lunar subsurface in the Taurus-Littrow valley.