1968 Oct 8-10 Council Minutes
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Ernst Zinner, Lithic Astronomer
UCLA UCLA Previously Published Works Title Ernst Zinner, lithic astronomer Permalink https://escholarship.org/uc/item/0gq43750 Journal Meteoritics & Planetary Science, 42(7/8) ISSN 1086-9379 Author Mckeegan, Kevin D. Publication Date 2007-07-01 Peer reviewed eScholarship.org Powered by the California Digital Library University of California Meteoritics & Planetary Science 42, Nr 7/8, 1045–1054 (2007) Abstract available online at http://meteoritics.org Ernst Zinner, lithic astronomer Kevin D. MCKEEGAN Department of Earth and Space Sciences, University of California, Los Angeles, Los Angeles, California 90095–1567, USA E-mail: [email protected] It is a rare privilege to be one of the founders of an entirely new field of science, and it is especially remarkable when that new field belongs to the oldest branch of “natural philosophy.” The nature of the stars has perplexed and fascinated humanity for millennia. While the sources of their luminosity and their structures and evolution were revealed over the last century, it is thanks to the pioneering efforts of a rare and remarkable man, Ernst Zinner, as well as his colleagues and students (mostly at the University of Chicago and at Washington University in Saint Louis), that in the last two decades it has become possible to literally hold a piece of a star in one’s hand. Armed with sophisticated microscopes and mass spectrometers of various sorts, these “lithic astronomers” are able to reveal stellar processes in exquisite detail by examining the chemical, mineralogical, and especially the nuclear properties of these microscopic grains of stardust. With this special issue of Meteoritics & Planetary Science, we honor Ernst Zinner (Fig. -
Fe,Mg)S, the IRON-DOMINANT ANALOGUE of NININGERITE
1687 The Canadian Mineralogist Vol. 40, pp. 1687-1692 (2002) THE NEW MINERAL SPECIES KEILITE, (Fe,Mg)S, THE IRON-DOMINANT ANALOGUE OF NININGERITE MASAAKI SHIMIZU§ Department of Earth Sciences, Faculty of Science, Toyama University, 3190 Gofuku, Toyama 930-8555, Japan § HIDETO YOSHIDA Department of Earth and Planetary Science, Graduate School of Science, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan § JOSEPH A. MANDARINO 94 Moore Avenue, Toronto, Ontario M4T 1V3, and Earth Sciences Division, Royal Ontario Museum, 100 Queens’s Park, Toronto, Ontario M5S 2C6, Canada ABSTRACT Keilite, (Fe,Mg)S, is a new mineral species that occurs in several meteorites. The original description of niningerite by Keil & Snetsinger (1967) gave chemical analytical data for “niningerite” in six enstatite chondrites. In three of those six meteorites, namely Abee and Adhi-Kot type EH4 and Saint-Sauveur type EH5, the atomic ratio Fe:Mg has Fe > Mg. Thus this mineral actually represents the iron-dominant analogue of niningerite. By analogy with synthetic MgS and niningerite, keilite is cubic, with space group Fm3m, a 5.20 Å, V 140.6 Å3, Z = 4. Keilite and niningerite occur as grains up to several hundred m across. Because of the small grain-size, most of the usual physical properties could not be determined. Keilite is metallic and opaque; in reflected light, it is isotropic and gray. Point-count analyses of samples of the three meteorites by Keil (1968) gave the following amounts of keilite (in vol.%): Abee 11.2, Adhi-Kot 0.95 and Saint-Sauveur 3.4. -
Origins of Life: Transition from Geochemistry to Biogeochemistry
December 2016 Volume 12, Number 6 ISSN 1811-5209 Origins of Life: Transition from Geochemistry to Biogeochemistry NITA SAHAI and HUSSEIN KADDOUR, Guest Editors Transition from Geochemistry to Biogeochemistry Staging Life: Warm Seltzer Ocean Incubating Life: Prebiotic Sources Foundation Stones to Life Prebiotic Metal-Organic Catalysts Protometabolism and Early Protocells pub_elements_oct16_1300&icpms_Mise en page 1 13-Sep-16 3:39 PM Page 1 Reproducibility High Resolution igh spatial H Resolution High mass The New Generation Ion Microprobe for Path-breaking Advances in Geoscience U-Pb dating in 91500 zircon, RF-plasma O- source Addressing the growing demand for small scale, high resolution, in situ isotopic measurements at high precision and productivity, CAMECA introduces the IMS 1300-HR³, successor of the internationally acclaimed IMS 1280-HR, and KLEORA which is derived from the IMS 1300-HR³ and is fully optimized for advanced U-Th-Pb mineral dating. • New high brightness RF-plasma ion source greatly improving spatial resolution, reproducibility and throughput • New automated sample loading system with motorized sample height adjustment, significantly increasing analysis precision, ease-of-use and productivity • New UV-light microscope for enhanced optical image resolution (developed by University of Wisconsin, USA) ... and more! Visit www.cameca.com or email [email protected] to request IMS 1300-HR³ and KLEORA product brochures. Laser-Ablation ICP-MS ~ now with CAMECA ~ The Attom ES provides speed and sensitivity optimized for the most demanding LA-ICP-MS applications. Corr. Pb 207-206 - U (238) Recent advances in laser ablation technology have improved signal 2SE error per sample - Pb (206) Combined samples 0.076121 +/- 0.002345 - Pb (207) to background ratios and washout times. -
M Iei1canjlusellm PUBLISHED by the AMERICAN MUSEUM of NATURAL HISTORY CENTRAL PARK WEST at 79TH STREET, NEW YORK 24, N.Y
jovitatesM iei1canJlusellm PUBLISHED BY THE AMERICAN MUSEUM OF NATURAL HISTORY CENTRAL PARK WEST AT 79TH STREET, NEW YORK 24, N.Y. NUMBER 2173 APRIL I4, I964 The Chainpur Meteorite BY KLAUS KEIL,1 BRIAN MASON,2 H. B. WIIK,3 AND KURT FREDRIKSSON4 INTRODUCTION This remarkable meteorite fell on May 9, 1907, at 1.30 P.M. as a shower of stones at and near the village of Chainpur (latitude 210 51' N., longi- tude 83° 29' E.) on the Ganges Plain. Some 8 kilograms were recovered. The circumstances of the fall and the recovery of the stones, and a brief description of the material, were given by Cotter (1912). One of us (Mason), when examining the Nininger Meteorite Collection in Arizona State University in January, 1962, noticed the unusual ap- pearance of a fragment of this meteorite, particularly the large chondrules and the friable texture, and obtained a sample for further investigation. Shortly thereafter, Keil was studying the Nininger Meteorite Collection, also remarked on this meteorite, and began independently to investigate it. In the meantime, Mason had sent a sample to Wiik for analysis. Under these circumstances, it seems desirable to report all these investi- gations in a single paper. 1 Ames Research Center, Moffett Field, California. 2 Chairman, Department of Mineralogy, the American Museum of Natural History. 3Research Associate, Department of Mineralogy, the American Museum of Natural History. 4Scripps Institution of Oceanography, La Jolla. 2 AMERICAN MUSEUM NOVITATES NO. 2173 FIG. 1. Photomicrograph of a thin section of the Chainpur meteorite, showing chondrules of olivine and pyroxene in a black matrix. -
History of the Institute of Meteoritics G
University of New Mexico UNM Digital Repository UNM History Essays UNM History 1988 History of the Institute of Meteoritics G. Jeffrey Taylor Follow this and additional works at: https://digitalrepository.unm.edu/unm_hx_essays Recommended Citation Taylor, G. Jeffrey. "History of the Institute of Meteoritics." (1988). https://digitalrepository.unm.edu/unm_hx_essays/12 This Article is brought to you for free and open access by the UNM History at UNM Digital Repository. It has been accepted for inclusion in UNM History Essays by an authorized administrator of UNM Digital Repository. For more information, please contact [email protected]. History of the Institute of Meteoritics G. Jeffrey Taylor The story of the Institute of Meteoritics centers on the lives of two dynamic men. One of them, Lincoln LaPaz, founded the Institute. He grew up in Kansas, where he saw Halley’s Comet at age 13 and where he gazed up at the night sky from the top of his house, studying meteors as they blazed through the atmosphere. While a student at Fairmount College in Wichita, LaPaz rode his horse, Belle, to class, letting her graze in a neighboring field while he studied mathematics. The other key figure in the Institute’s history is Klaus Keil, Director since 1968. He grew up in what became East Germany, and escaped the stifling, totalitarian life behind the iron curtain when in his young twenties, carrying meteorite specimens with him. Though having vastly different roots, LaPaz and Keil share the same fascination with stones that fall from the sky. The Institute’s story can be told in three parts: LaPaz’s era, a period of transition, and Keil’s era. -
Discoveries of Mass Independent Isotope Effects in the Solar System: Past, Present and Future Mark H
Reviews in Mineralogy & Geochemistry Vol. 86 pp. 35–95, 2021 2 Copyright © Mineralogical Society of America Discoveries of Mass Independent Isotope Effects in the Solar System: Past, Present and Future Mark H. Thiemens Department of Chemistry and Biochemistry University of California San Diego La Jolla, California 92093 USA [email protected] Mang Lin State Key Laboratory of Isotope Geochemistry Guangzhou Institute of Geochemistry, Chinese Academy of Sciences Guangzhou, Guangdong 510640 China University of Chinese Academy of Sciences Beijing 100049 China [email protected] THE BEGINNING OF ISOTOPES Discovery and chemical physics The history of the discovery of stable isotopes and later, their influence of chemical and physical phenomena originates in the 19th century with discovery of radioactivity by Becquerel in 1896 (Becquerel 1896a–g). The discovery catalyzed a range of studies in physics to develop an understanding of the nucleus and the properties influencing its stability and instability that give rise to various decay modes and associated energies. Rutherford and Soddy (1903) later suggested that radioactive change from different types of decay are linked to chemical change. Soddy later found that this is a general phenomenon and radioactive decay of different energies and types are linked to the same element. Soddy (1913) in his paper on intra-atomic charge pinpointed the observations as requiring the observations of the simultaneous character of chemical change from the same position in the periodic chart with radiative emissions required it to be of the same element (same proton number) but differing atomic weight. This is only energetically accommodated by a change in neutrons and it was this paper that the name “isotope” emerges. -
The Meteoritical Society Newsletter 2001
SUPPLEMENT TO METEORITICS & PLANETARY SCIENCE, VOL. 36, 11 The Meteoritical Society Newsletter (November 2001) A report of the business carried out by the Society over the past year, edited by Edward Scott, Secretary. PRESIDENT'S EDITORIAL Nomenclature President's Editorial Gero Kurat There are some indications that SNC meteorites could originate from Mars, there are others that relate them to carbonaceous Things usually turn out somewhat different from what one expects chondrites. Among the advocates for a martian origin is also the them to be and this was exactly so also with my first few months in foremost expert on these meteorites, Hap McSween. Some colleagues office. I was positively surprised by the amount of activities initiated neglect the possibility that SNC meteorites could not come from Mars by members of our Society. The overwhelmingly constructive and call them "martian meteorites". Others prefer to call them contributions make investing time for the Society a joy. There are, "SNICs", for obvious reasons. Hap has this year been honored for however, also some unsolved problems which do not create instant his work on "martian meteorites". As the possibility for a non-martian joy but whose solution eventually could lead to improvements origin of SNC meteorites still exists, a curious conundrum emerges: beneficial for all of us. So joy is awaiting us afterwards. Us means how could Hap have done this wonderful work on something that the Council and in particular the Secretary of the Society who does possibly does not exist? Please help us to solve that riddle—the best an excellent job in spite of the bumpy communication between our three solutions will receive prizes. -
2005 Leonard Medal for Joseph I. Goldstein
2005 Leonard Medal for Joseph I. Goldstein Item Type Article; text Authors Rubin, Alan Citation Rubin, A. (2005). 2005 Leonard Medal for Joseph I. Goldstein. Meteoritics & Planetary Science, 40(Supplement), A5-A6. DOI 10.1111/j.1945-5100.2005.tb00418.x Publisher The Meteoritical Society Journal Meteoritics & Planetary Science Rights Copyright © The Meteoritical Society Download date 01/10/2021 07:56:30 Item License http://rightsstatements.org/vocab/InC/1.0/ Version Final published version Link to Item http://hdl.handle.net/10150/656695 Meteoritics & Planetary Science 40, Supplement, A5–A6 page (2005) Abstract available online at http://meteoritics.org Award 2005 Leonard Medal for Joseph I. Goldstein To tell the truth, I was a bit bewildered when I was assigned the task of giving the citation for Joe Goldstein for the Leonard Medal. Who was this guy? We had never worked in the same research group and had never published a paper together. I thought I had occasionally seen him in Houston at the Lunar and Planetary Science Conference, but never after Wednesday. I asked one of the postdocs in our group at UCLA who Goldstein was, but he had no idea. Now it began to make sense. Goldstein was just another Leonard medallist no one had ever heard of. I reasoned that he must be some Meteoritical Society apparatchik working his way through the ranks. This suspicion was confirmed when I found out that he is a former treasurer of the society and currently its vice- president—a man obviously being groomed for the top spot. So, to complete my assignment, I did what any modern investigator would do. -
Defending Planet Earth: Near-Earth Object Surveys and Hazard Mitigation Strategies Final Report
PREPUBLICATION COPY—SUBJECT TO FURTHER EDITORIAL CORRECTION Defending Planet Earth: Near-Earth Object Surveys and Hazard Mitigation Strategies Final Report Committee to Review Near-Earth Object Surveys and Hazard Mitigation Strategies Space Studies Board Aeronautics and Space Engineering Board Division on Engineering and Physical Sciences THE NATIONAL ACADEMIES PRESS Washington, D.C. www.nap.edu PREPUBLICATION COPY—SUBJECT TO FURTHER EDITORIAL CORRECTION THE NATIONAL ACADEMIES PRESS 500 Fifth Street, N.W. Washington, DC 20001 NOTICE: The project that is the subject of this report was approved by the Governing Board of the National Research Council, whose members are drawn from the councils of the National Academy of Sciences, the National Academy of Engineering, and the Institute of Medicine. The members of the committee responsible for the report were chosen for their special competences and with regard for appropriate balance. This study is based on work supported by the Contract NNH06CE15B between the National Academy of Sciences and the National Aeronautics and Space Administration. Any opinions, findings, conclusions, or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the views of the agency that provided support for the project. International Standard Book Number-13: 978-0-309-XXXXX-X International Standard Book Number-10: 0-309-XXXXX-X Copies of this report are available free of charge from: Space Studies Board National Research Council 500 Fifth Street, N.W. Washington, DC 20001 Additional copies of this report are available from the National Academies Press, 500 Fifth Street, N.W., Lockbox 285, Washington, DC 20055; (800) 624-6242 or (202) 334-3313 (in the Washington metropolitan area); Internet, http://www.nap.edu. -
Oral History Whipple.Fm
Meteoritics & Planetary Science 39, Supplement, A199–A213 (2004) Abstract available online at http://meteoritics.org Report Oral histories in meteoritics and planetary science: XIII: Fred L. Whipple Ursula B. MARVIN Harvard-Smithsonian Center for Astrophysics, Cambridge, Massachusetts 02138, USA E-mail: [email protected] (Received 13 June 2004) Abstract–Born in Red Oak, Iowa, in 1906, Fred Lawrence Whipple earned his Ph.D. in astronomy at the University of California at Berkeley in 1931. He immediately accepted a position at the Harvard College Observatory and remained at Harvard throughout his career. In 1950, he was appointed to the Phillips Professorship in the Department of Astronomy, and in 1955, he began serving concurrently as the Director of the Smithsonian Astrophysical Observatory when it moved from Washington, D.C. to Cambridge, Massachusetts. In the 1930s, Whipple established the Harvard Meteor Project in which two cameras, 26 miles apart, simultaneously photographed the same meteors, for which he invariably derived elliptical orbits indicative of their origin within the solar system. In 1950, Whipple introduced his “dirty snowball” model of comet nuclei, which soon became widely accepted and was fully confirmed in 1986 by close-up images of comet Halley taken by the European Space Agency’s Giotto spacecraft. Keenly anticipating the orbiting of satellites during the International Geophysical Year (July 1, 1957-December 31, 1958), Whipple won contracts to build a worldwide network of telescopic cameras for satellite tracking. At least one of the cameras was ready in time to photograph the Soviet Union’s Sputnik I satellite in October 1957, and all 12 stations were in operation by midsummer of 1958. -
Index to JRASC Volumes 61-90 (PDF)
THE ROYAL ASTRONOMICAL SOCIETY OF CANADA GENERAL INDEX to the JOURNAL 1967–1996 Volumes 61 to 90 inclusive (including the NATIONAL NEWSLETTER, NATIONAL NEWSLETTER/BULLETIN, and BULLETIN) Compiled by Beverly Miskolczi and David Turner* * Editor of the Journal 1994–2000 Layout and Production by David Lane Published by and Copyright 2002 by The Royal Astronomical Society of Canada 136 Dupont Street Toronto, Ontario, M5R 1V2 Canada www.rasc.ca — [email protected] Table of Contents Preface ....................................................................................2 Volume Number Reference ...................................................3 Subject Index Reference ........................................................4 Subject Index ..........................................................................7 Author Index ..................................................................... 121 Abstracts of Papers Presented at Annual Meetings of the National Committee for Canada of the I.A.U. (1967–1970) and Canadian Astronomical Society (1971–1996) .......................................................................168 Abstracts of Papers Presented at the Annual General Assembly of the Royal Astronomical Society of Canada (1969–1996) ...........................................................207 JRASC Index (1967-1996) Page 1 PREFACE The last cumulative Index to the Journal, published in 1971, was compiled by Ruth J. Northcott and assembled for publication by Helen Sawyer Hogg. It included all articles published in the Journal during the interval 1932–1966, Volumes 26–60. In the intervening years the Journal has undergone a variety of changes. In 1970 the National Newsletter was published along with the Journal, being bound with the regular pages of the Journal. In 1978 the National Newsletter was physically separated but still included with the Journal, and in 1989 it became simply the Newsletter/Bulletin and in 1991 the Bulletin. That continued until the eventual merger of the two publications into the new Journal in 1997. -
The Buritizal Meteorite
Rogerio Nogueira Salaverry et al. GeosciencesGeociências The Buritizal meteorite: classification http://dx.doi.org/10.1590/0370-44672016700081 of a new Brazilian chondrite Rogerio Nogueira Salaverry Abstract Mestre Universidade Federal do Rio de Janeiro - UFRJ On August 14, 1967, the reporter Saulo Gomes, working at TV Tupi, went to a Instituto de Geociências small city in the State of São Paulo called Buritizal to investigate reports of a mete- Departamento de Geologia orite fall and write a newspaper report. He actually recovered three fragments of the Rio de Janeiro - Rio de Janeiro - Brasil meteorite at a small farm. In 2014, he donated one of the fragments to the Museu [email protected] Nacional of the Universidade Federal do Rio de Janeiro (MN/UFRJ). We named this meteorite Buritizal and studied its petrology, geochemistry, magnetic properties and Maria Elizabeth Zucolotto cathodoluminescence with the intent to determine the petrologic classification of the Professora Adjunta meteorite. In this manner, the Buritizal meteorite is classified as an ordinary chondrite Universidade Federal do Rio de Janeiro - UFRJ LL 3.2 breccia (as indicated by lithic fragments). The meteorite consists of ~ 2% of me- Museu Nacional – Departamento de tallic Fe,Ni and many well-defined chondrules with ~ 0.8 mm in average diameter. An Geologia e Paleontologia ultramafic ferromagnesian mineralogy is predominant in the meteorite, represented by Rio de Janeiro - Rio de Janeiro – Brasil olivine, orthopyroxene, clinopyroxene, Fe-Ni alloy, troilite and glass. The total iron [email protected] content was calculated as 20.88 wt%. Furthermore, the meteorite was classified as weathering grade W1 and shock stage S3.