Search for meteoritic GEMS I: Comparison of amorphous silicates in Paris and Acfer 094 chondrite matrices and in anhydrous chondritic interplanetary dust particles

High Precision Oxygen Three Isotope Analysis of Wild-2 Particles and Anhydrous Chondritic Interplanetary Dust Particles

ANHYDROUS CHONDRITIC INTERPLANETARY DUST PARTICLES. D. Nakashima, T. Ushikubo, M. E. Zolensky, M. K. Weisberg, D. J. Joswiak, D. E. Brownlee, G. Matrajt, and N. T. Kita. WiscSIMS, Dept. Geoscience, University of Wisconsin-Madison, Madison, WI 53706 ([email protected]), NASA Johnson Space Center, Houston, TX 77058. Dept. Phys. Sci., Kingsborough College, City University of New York, Brooklyn...

High precision oxygen three-isotope analyses of anhydrous chondritic interplanetary dust particles

Oxygen three-isotope ratios of three anhydrous chondritic interplanetary dust particles (IDPs) were analyzed using an ion microprobe with a 2 lm small beam. The three anhydrous IDPs show DO values ranging from )5& to +1&, which overlap with those of ferromagnesian silicate particles from comet Wild 2 and anhydrous porous IDPs. For the first time, internal oxygen isotope heterogeneity was resolv...

DISCOVERY OF METEORITIC LAKARGIITE (CaZrO3), A NEW ULTRAREFRCTORY MINERAL FROM THE ACFER 094 CARBONACEOUS CHONDRITE

Introduction: During a nano-mineralogy investigation of the Acfer 094 carbonaceous chondrite, lakargiite (CaZrO3) was identified as submicrometer inclusions in an isolated hibonite grain in section USNM 7233-1. The hibonite grain is described in Simon and Grossman [1]. Lakargiite is a recently found perovskite-group mineral from hightemperature skarns in ignimbrites of the Upper-Chegem volcanic...

Acfer 094 Presolar Silicates Characterized Using Nanosims and Auger Nanoprobe

the search for the self in becketts theatre: waiting for godot and endgame

this thesis is based upon the works of samuel beckett. one of the greatest writers of contemporary literature. here, i have tried to focus on one of the main themes in becketts works: the search for the real "me" or the real self, which is not only a problem to be solved for beckett man but also for each of us. i have tried to show becketts techniques in approaching this unattainable goal, base...