Thermal Expansion of Natural Spinel, Ferroan Gahnite, Magnesiochromite, and Synthetic Spinel. (9999)
Singh, H. P., Simmons, Gene, McFarlin, P. F.
The lattice parameters of natural spinel, ferroan gahnite, magnesiochromite, and synthetic spinel at elevated temperatures have been determined. Expressions for thermal expansions are derived. The...
Thermal Cycling Cracks in Three Igneous Rocks (9999)
Simmons,Gene, Cooper,Herman W.
The slow < = 1c/min heating and cooling of Westerly granite and two diabases at 1 atm pressure and temperatures up to 900 deg produces cracks with relatively low crack closure pressures. The volume...
Contents: Coupling of seismic waves; Geologic studies of USSR and China for nuclear test detection (Abstract); Dynamic properties of geologic media; Dynamic properties of rocks; Shock-wave data and...
Complex Dielectric Properties of Several Igneous and Metamorphic Rocks. (2002)
Simmons,Gene, Caruso,Lou, Miller,Frank
The complex dielectric properties of rocks are interesting scientifically and important practically. The scientific interest derives from a desire to understand the properties of materials, the...
The Electrical Conductivity of the Crust of the Eastern United States. (2002)
Simmons,Gene, Caruso,Lou, Miller,Frank
The electrical properties of the crust can be measured directly in the field or estimated for in situ conditions from suitable measurements made in the laboratory. Unfortunately, removal of rocks...
The Physical Properties of Deep Crustal Rocks. (2002)
Simmons,Gene, Bales,Linda, Caruso,Louis, Cooper,Herman, Fehler,Michael
Several results of the project stand out. First, the DSA technique provides an important method of characterizing microcracks. Second, a suite of rocks with crack porosity that varies from less than...
Beardsley,Robert C., Edmond,John M., Press,Frank, Rhines,Peter B., Simmons,Gene
;Contents: Ocean-island interaction; Ocean circulation model studies; Equatorial undercurrent observations in the Indian Ocean; Ocean bottom pressure fluctuations; Internal waves and tides in...
Hadley Rille, Apollo A Guidebookto, Gene Simmons
Reproduced for NASA by the