Topic: The End is Just the Beginning... Leg 194 Wrap-up Broadcast 7: February 28, 2001 Mrs. Joan...
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Transcript of Topic: The End is Just the Beginning... Leg 194 Wrap-up Broadcast 7: February 28, 2001 Mrs. Joan...
Topic:The End is Just the Beginning... Leg 194 Wrap-upBroadcast 7:February 28, 2001
Mrs. Joan Linsley
Advantages of Ocean Drilling
• Deep sea sediments and rock formations are less disturbed than on land.
• Each layer represents the environment at a specific time.
Hypothesis:
Coring in this region will enable us to determine the
timing and magnitude of sea level changes during the last
fifteen million years.
Why Here?
• The edge of the continental margin in this region is stable and not subjected to tectonic forces.
• The reefs are sensitive to sea level change because they are living and within a few meters of the sea surface.
Marion Seismic Record
Basement & Exposure
ExposureSurface
Early & Mid-Miocene Deposition
CarbonatePlatform
SlopeDeposits
Hemi-pelagicSediments
Mid-Miocene Exposure
Exposure Surface
CarbonatePlatform
SlopeDeposits
Hemi-pelagicSediments
Late Miocene Deposition
CarbonatePlatform
SlopeDeposits
Hemi-pelagicSediments
Late Miocene ExposureExposureSurfaceCarbonate
Platform
SlopeDeposits
Hemi-pelagicSediments
Pliocene-Pleistocene Deposition
CarbonatePlatform
SlopeDeposits
Hemi-pelagicSediments
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