Download or read book Shear Strength Polymorphism and Mechanical Behavior of Olivine Enstatite Diopside Labradorite and Pyrope Garnet written by Robert E. Riecker and published by . This book was released on 1966 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: Four hundred and seventeen shear and compression tests were completed on five minerals: olivine, enstatite, diopside, labradorite, and pyrope garnet. These minerals are assumed to represent the principal constituents of an upper mantle rock model. Petrographic examination and x-ray analyses indicate that the minerals deform cataclastically at low pressures and temperatures, with intragranular flow beginning at 30 kb normal pressure. Temperature enhances ductility, indicated at high pressures by x-ray line broadening on diffraction patterns and the appearance of kink bands in thin sections. Two phenomena of geophysical importance have been discovered during shear testing: (1) dehydration of less than 5 percent by volume of serpentine weakens dunite by more than 30 percent as the temperature is raised from 300C to 520C; (2) orthorhombic enstatite readily inverts to monoclinic polymorph under the influence of shear stress at all pressures and the temperatures to 920C and 50 kb. The inversion is accompanied by a small, rapid change in volume, sufficient to yield seismic energy for the production of a moderate earthquake. (Author).
Download or read book Environmental Research Papers written by and published by . This book was released on 1966 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Shear Strength of Twelve Grossly Deformed Metals at High Pressures and Temperatures written by Robert E. Riecker and published by . This book was released on 1967 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: The shear strength of grossly deformed tungsten, germanium, nickel, beryllium, uranium, copper, gold, silver, aluminum, magnesium, bismuth, and tin was measured in an opposed anvil shear apparatus at pressures up to 150 kb at 27C, and for gold, silver, and copper to 900C. The shear data agree with independent strength measurements at low pressures, but differ significantly from high-pressure shear-strength measurements made by other investigators. The data on the noble metals also fit a simple empirical formula relating the temperature and pressure dependence of the shear strength. (Author).
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1967 with total page 1388 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of AFCRL Publications from 1 July 1966 to 30 September 1967 written by Air Force Cambridge Research Laboratories (U.S.) and published by . This book was released on 1968 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: This bibliography lists all in-house reports, journal articles, and contractor reports issued from 1 July 1966 to 30 September 1967. Part I lists all in-house reports by the series in which they were issued; Part II lists all in-house reports, journal articles, and contractor reports by the Laboratory responsible for their preparation. In Part I, the reports are listed numerically by series; in Part II, in-house reports and journal articles are listed alphabetically by author, and contractor reports are listed numerically by the AFCRL report number.
Download or read book Technical Abstract Bulletin written by and published by . This book was released on with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government wide Index to Federal Research Development Reports written by and published by . This book was released on 1967 with total page 1234 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report on Research at AFCRL written by Air Force Cambridge Research Laboratories (U.S.) and published by . This book was released on 1965 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Pyroxenes and Amphiboles written by James Joseph Papike and published by . This book was released on 1969 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book High Pressure Bibliography 1900 1968 Subject index written by and published by . This book was released on 1970 with total page 768 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Shear Deformation of Nevada Test Site Rocks written by Robert E. Riecker and published by . This book was released on 1966 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Six Nevada Test Site rocks were sheared in a large opposed anvil shear press to maximum pressures of 60 kb and maximum temperatures of 900C. The torsion tests on tuff, dolomite, shale, granodiorite, and quartzite were designed to determine shear strength and internal friction data for underground test media. The most significant result is weakening of the tuff caused by dehydration of associated zeolite alteration products. This weakening mechanism might occur near the shot point of nuclear tests in tuff where temperatures rise above the dehydration temperatures for zeolite. (Author).
Download or read book High Pressure Bibliography 1900 1968 written by and published by . This book was released on 1970 with total page 710 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Annual Report of the Director of the Geophysical Laboratory written by Carnegie Institution of Washington. Geophysical Laboratory and published by . This book was released on 1966 with total page 494 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Numerical Model Study of Subduction and the Deformation of the Oceanic Lithosphere written by Thomas Mitchell Tharp and published by . This book was released on 1978 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bulletin written by Seismological Observatory (N.Z.) and published by . This book was released on 1969 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Annual Index written by and published by . This book was released on 1967 with total page 872 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government wide Index to Federal Research Development Reports written by and published by . This book was released on 1967 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt:
