OLIVINE SHEAR STRENGTH AT HIGH PRESSURE AND ROOM TEMPERATURE

The shear strength of olivine (forsterite) varies from 1.77 kb at 5.5 kb coafining pressure to 15.2 kb at 50 kb confining pressure in room temperature shearing tests at strain rates from 1/sec to 10.3/sec. Extreme grain granulation, increased undulatory extinction, diffuse X-ray patterns and refractive index reductions up to 0.030 are found in sheared pellets. Extreme microfracturing and absence of recrystalization or gliding indicate predominantly brittle behavior.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00167606
• Corporate Authors:

  Geological Society of America

  3300 Penrose Place
  Boulder, CO  United States  80301
• Authors:
  • Riecker, R E
  • Seifert, K E
• Publication Date: 1964-6

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 571-574
• Serial:
  • Geological Society of America, Bulletin
  • Volume: 75
  • Publisher: Geological Society of America
  • ISSN: 0016-7606

Subject/Index Terms

• TRT Terms: Brittleness; Magnesium compounds; Mechanical strain; Pressure; Refractivity; Shear strength; Shear tests; Temperature; X rays
• Uncontrolled Terms: Olivine; Strain rate
• Old TRIS Terms: Decarbonizing
• Subject Areas: Geotechnology; Highways;

Filing Info

• Accession Number: 00084098
• Record Type: Publication
• Files: TRIS
• Created Date: Jul 15 1975 12:00AM