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Masters Theses in the Pure and Applied Sciences was first conceived, published, and disseminated by the Center for Information and Numerical Oata Analysis and Synthesis (CINOAS) * at Purdue. University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the activity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all con cerned if the printing and distribution of the volumes were handled by an interna tional publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Cor poration of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 33 (thesis year 1988) a total of 13,273 theses titles from 23 Canadian and 1 85 United States universities. We are sure that this broader base for these titles reported will greatly enhance the value of this important annual reference work. While Volume 33 reports theses submitted in 1988, on occasion, certain univer sities do report theses submitted in previous years but not reported at the time.
Contains papers presented for the -30th annual meeting of the association.
Relationships between deformation fabrics and porphyroblasts have been used to evaluate the metamorphic and deformational histories of mountain belts. However, some porphyroblast-fabric relationships, such as those of spiral inclusion trails in garnets, remain controversial. Two end-member models for their formation include: 1) a rotational model that invokes rotation of progressively growing garnet porphyroblasts, and 2) a non-rotational model that involves multiple periods of garnet growth, resorption, and successive overprinting of near-orthogonal foliations. However, field, petrographic, and microanalytical techniques used to evaluate the origin of spiral inclusion trails from the Laramie Mountains appear consistent with overgrowth of an existing crenulation foliation and only modest rotation. This study presents evidence to explain ~360 degrees of apparent rotation within our garnets via as little as 58 degrees of real rotation. Varying degrees of apparent rotation from our samples can be explained through the overgrowth of an asymmetric crenulation foliation during progressive shortening and continued foliation development, and foliation wrapping that occurs around the garnets during their growth. Additionally, the real garnet rotation likely results from partitioned shear strain around garnet porphyroblasts.