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Dynamic Pore-scale Reservoir-condition Imaging of Reaction in Carbonates Using Synchrotron Fast Tomography

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Deep-sea carbonates: dissolution and mass wasting on ontong-java plateau.

W H Berger, T C Johnson

Science (New York, N.Y.)

|May 21, 1976

Summary

Large-scale land sliding and sediment flows occurred on the Ontong-Java Plateau. These geological processes are influenced by depth-dependent dissolution, shaping the seafloor morphology.

Area of Science:

Geology
Marine Geology
Sedimentology

Background:

The Ontong-Java Plateau is a large igneous province with significant sediment cover.
Understanding sediment transport and mass wasting processes is crucial for interpreting marine geological records.

Purpose of the Study:

To investigate evidence of large-scale land sliding and sediment flow on the Ontong-Java Plateau.
To determine the factors controlling the topographic morphology of these geological features.

Main Methods:

Analysis of seismic reflection profiles to identify large-scale structures.
Examination of sediment structures in box cores to understand depositional processes.

Main Results:

Seismic data reveal extensive land sliding features.

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Box core analysis indicates significant sediment flow processes.

The observed sliding and slumping morphology is dependent on water depth.

Conclusions:

The Ontong-Java Plateau has experienced substantial mass wasting events.
Dissolution processes appear to play a key role in controlling the depth-dependent morphology of these features.