Density Structure of the Upper Oceanic Crust at Zero Porosity

Abstract

As part of this research project, we obtained data on the density of about forty samples of submarine mid-ocean ridge basalt (MORB). These data were obtained using a pychnometer after careful hand-picking of glass shards and have a precision better than + or - 0.05 g/cu cm. A very surprising result is that the measured densities have a much greater range than expected densities calculated from their chemical composition (2.85-2.97). While we cannot yet rule out the effects of volatiles (H2O and CO2), micro cracks and slight alteration of glasses, we hope to be able to do so soon.

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Document Details

Document Type
Technical Report
Publication Date
Aug 25, 1994
Accession Number
ADA284235

Entities

Organizations

  • University of HawaiĘ»i System

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Chemical Composition
  • Earth Sciences
  • Geophysics
  • Heat Capacity
  • Ocean Ridges
  • Porosity
  • Precision
  • Ridges
  • Seismic Velocity
  • Submarines
  • Technical Information Centers
  • Thermodynamic Properties
  • Transitions
  • Universities

Readers

  • Materials Science and Engineering.
  • Mathematics or Statistics
  • Seismology