The Meteoritical Society Newsletter 2007
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Cross-References ASTEROID IMPACT Definition and Introduction History of Impact Cratering Studies
18 ASTEROID IMPACT Tedesco, E. F., Noah, P. V., Noah, M., and Price, S. D., 2002. The identification and confirmation of impact structures on supplemental IRAS minor planet survey. The Astronomical Earth were developed: (a) crater morphology, (b) geo- 123 – Journal, , 1056 1085. physical anomalies, (c) evidence for shock metamor- Tholen, D. J., and Barucci, M. A., 1989. Asteroid taxonomy. In Binzel, R. P., Gehrels, T., and Matthews, M. S. (eds.), phism, and (d) the presence of meteorites or geochemical Asteroids II. Tucson: University of Arizona Press, pp. 298–315. evidence for traces of the meteoritic projectile – of which Yeomans, D., and Baalke, R., 2009. Near Earth Object Program. only (c) and (d) can provide confirming evidence. Remote Available from World Wide Web: http://neo.jpl.nasa.gov/ sensing, including morphological observations, as well programs. as geophysical studies, cannot provide confirming evi- dence – which requires the study of actual rock samples. Cross-references Impacts influenced the geological and biological evolu- tion of our own planet; the best known example is the link Albedo between the 200-km-diameter Chicxulub impact structure Asteroid Impact Asteroid Impact Mitigation in Mexico and the Cretaceous-Tertiary boundary. Under- Asteroid Impact Prediction standing impact structures, their formation processes, Torino Scale and their consequences should be of interest not only to Earth and planetary scientists, but also to society in general. ASTEROID IMPACT History of impact cratering studies In the geological sciences, it has only recently been recog- Christian Koeberl nized how important the process of impact cratering is on Natural History Museum, Vienna, Austria a planetary scale. -
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. -
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. -
The Hamburg Meteorite Fall: Fireball Trajectory, Orbit and Dynamics
The Hamburg Meteorite Fall: Fireball trajectory, orbit and dynamics P.G. Brown1,2*, D. Vida3, D.E. Moser4, M. Granvik5,6, W.J. Koshak7, D. Chu8, J. Steckloff9,10, A. Licata11, S. Hariri12, J. Mason13, M. Mazur3, W. Cooke14, and Z. Krzeminski1 *Corresponding author email: [email protected] ORCID ID: https://orcid.org/0000-0001-6130-7039 1Department of Physics and Astronomy, University of Western Ontario, London, Ontario, N6A 3K7, Canada 2Centre for Planetary Science and Exploration, University of Western Ontario, London, Ontario, N6A 5B7, Canada 3Department of Earth Sciences, University of Western Ontario, London, Ontario, N6A 3K7, Canada ( 4Jacobs Space Exploration Group, EV44/Meteoroid Environment Office, NASA Marshall Space Flight Center, Huntsville, AL 35812 USA 5Department of Physics, P.O. Box 64, 00014 University of Helsinki, Finland 6 Division of Space Technology, Luleå University of Technology, Kiruna, Box 848, S-98128, Sweden 7NASA Marshall Space Flight Center, ST11, Robert Cramer Research Hall, 320 Sparkman Drive, Huntsville, AL 35805, USA 8Chesapeake Aerospace LLC, Grasonville, MD 21638, USA 9Planetary Science Institute, Tucson, AZ, USA 10Department of Aerospace Engineering and Engineering Mechanics, University of Texas at Austin, Austin, TX, USA 11Farmington Community Stargazers, Farmington Hills, MI, USA 12Department of Physics and Astronomy, Eastern Michigan University, Ypsilanti, MI, USA 13Orchard Ridge Campus, Oakland Community College, Farmington Hills, MI, USA 14NASA Meteoroid Environment Office, Marshall Space Flight Center, Huntsville, Alabama 35812, USA Accepted to Meteoritics and Planetary Science, June 19, 2019 85 pages, 4 tables, 15 figures, 1 appendix. Original submission September, 2018. 1 Abstract The Hamburg (H4) meteorite fell on January 17, 2018 at 01:08 UT approximately 10km North of Ann Arbor, Michigan. -
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. -
Flooding Induced by Rising Atmospheric Carbon Dioxide 10,11 204,206 87 86 B 207,208Pb Sr/ Sr
Fiscal Year 2020 Annual Report VOL. 30, NO. 10 | OCTOBER 2020 Flooding Induced by Rising Atmospheric Carbon Dioxide 10,11 204,206 87 86 B 207,208Pb Sr/ Sr 234U/ 230 Th Sr-Nd-Hf • Geochronology – U/Th age dating • Geochemical Fingerprinting – Sr-Nd-Hf and Pb isotopes • Environmental Source Tracking – B and Sr isotopes High-Quality Data & Timely Results isobarscience.com Subsidiary of OCTOBER 2020 | VOLUME 30, NUMBER 10 SCIENCE 4 Flooding Induced by Rising Atmospheric Carbon Dioxide GSA TODAY (ISSN 1052-5173 USPS 0456-530) prints news Gregory Retallack et al. and information for more than 22,000 GSA member readers and subscribing libraries, with 11 monthly issues (March- Cover: Mississippi River flooding at West Alton, Missouri, April is a combined issue). GSA TODAY is published by The Geological Society of America® Inc. (GSA) with offices at USA, 1 June 2019 (Scott Olsen, Getty Images, user license 3300 Penrose Place, Boulder, Colorado, USA, and a mail- 2064617248). For the related article, see pages 4–8. ing address of P.O. Box 9140, Boulder, CO 80301-9140, USA. GSA provides this and other forums for the presentation of diverse opinions and positions by scientists worldwide, regardless of race, citizenship, gender, sexual orientation, religion, or political viewpoint. Opinions presented in this publication do not reflect official positions of the Society. © 2020 The Geological Society of America Inc. All rights reserved. Copyright not claimed on content prepared Special Section: FY2020 Annual Report wholly by U.S. government employees within the scope of their employment. Individual scientists are hereby granted 11 Table of Contents permission, without fees or request to GSA, to use a single figure, table, and/or brief paragraph of text in subsequent work and to make/print unlimited copies of items in GSA TODAY for noncommercial use in classrooms to further education and science. -
DISTRIBUTION of PULTUSK METEORITE FRAGMENTS. T. Brachaniec1 and J. W. Kosiński2, 1University of Silesia; Faculty of Earth Science; Bedzinska Str
45th Lunar and Planetary Science Conference (2014) 1067.pdf DISTRIBUTION OF PULTUSK METEORITE FRAGMENTS. T. Brachaniec1 and J. W. Kosiński2, 1University of Silesia; Faculty of Earth Science; Bedzinska str. 60, 41-200 Sosnowiec; email: [email protected], 2Comet and Meteor Workshop - Meteorites Section, Warsaw; email: [email protected]. Pultusk meteorite, which is classified as a brec- Modern research of literature and field working ciated H5 chondrite [1] fell at 30th of January 1868 in (Fig. 1) clearly show that the map created by Sam- Central Poland. The bolide was witnessed over a huge sonowicz is only a approximate picture of the distribu- part of Europe, from cities in Hungary and Austria in tion of Pultusk meteorites. The result of a field search- the south, to Gdańsk (Poland), Russia, in the north, ing is an observation that in a small area occur small and big specimens. Author has been claimed that in and from Berlin (Germany), in the west to Grodno the central part of the ellipse should be found speci- (Belarus), in the east. The shock from the bolide re- mens from 0.2 to 2 kg, however, in this area occur portedly collapsed structures in Warsaw, 60 km south small meteorites, weighing a few grams, called “Pul- of where it impacted. Within a few days of the fall, tusk peas”. There are many indications that Sam- about 400 pieces of the meteorite were collected. sonowicz also overestimated the amount of fallen me- After 80 years after the fall Samsonowicz as first teorites [3][4]. published his field working results [2]. -
Post-Impact Hydrothermal Activity in Meteorite Impact Craters and Potential Opportunities for Life
Bioastronomy 2002: Life Among the Stars IAU Symposium, Vol. 213, 2004 R.P.Norris and F.H.Stootman (eds.) Post-Impact Hydrothermal Activity in Meteorite Impact Craters and Potential Opportunities for Life Christian Koeberl Department of Geological Sciences, University of Vienna, Althanstrasse 14, A-1090 Vienna, Austria, [email protected] Wolf Uwe Reimold Impact Cratering Research Group, School of Geosciences, University of the Witwatersrand, Johannesburg 2050, South Africa, [email protected] Abstract. Impact craters are prominent landforms on all objects with a solid surface in the solar system. The formation of an impact structure is a high-energy, high-temperature transient event which introduces large amounts of energy into a limited area. This energy can, in part, be expanded on the creation and activation of a hydrothermal system within and even outside of the crater. Depending on the crater size and geology of the target region, this hydrothermal system may persist for extended periods of time. Such impact-induced hydrothermal systems could well have provided conditions supportive of the development of life on the early Earth and it is not unreasonable to assume that similar conditions could have led to life-favoring circumstances on other planets and satellites. 1. Introduction Studies during the last few decades have convinced most workers that the planets formed by collision and hierarchical growth starting from small objects, Le., from dust to planetesimals to planets. All planets and satellites of the solar system that have solid surfaces (e.g., Mercury, Venus, Mars, the asteroids) are covered by craters. Impact cratering has been either the most important, or one of the most important processes that affected the shaping of their surfaces. -
1968 Oct 8-10 Council Minutes
Minutes of the Council Meeting of the Meteoritical Society October 8, 1968 Hoffman Geological Laboratory Harvard University Cambridge The meeting was convened at 2:15 p.m. with President Carleton B. Moore presiding. In attendance were Vice Presidents Barandon Barringer, Robert S. Dietz and John A. O'Keefe, Secretary Roy S. Clarke, Jr., Treasurer Ursula B. Marvin, Editor Dorrit Hoffleit, Past President Peter M. Millman, and Councilors Richard Barringer, Kurt Fredriksson, Gerald S. Hawkins, Klaus Keil, Brian H. Mason and John A. Wood. Robin Brett, John T. Wasson and Fred L. Whipple attended the meeting as visitors. Minutes The minutes of the Council meeting held at the Holiday Inn, Mountain View California, on October 24, 1967, were approved as submitted. Program, 31st Annual Meeting Ursula Marvin presented the program for the Annual Meeting and discussed arrangements and last minute changes. The Council unanimously approved the program as presented and thanked Mrs. Marvin and her coworkers for their efforts on behalf of the Society. Secretary's Report The report of the Secretary was submitted to the Council in writing and was accepted as submitted (copy attached). There was brief discussion of the nomenclature problem of Barringer Meteor Crater. It was pointed out that in the final analysis usage determines the name that becomes accepted. It was suggested that Society members use the name Barringer Meteor Crater in speaking and writing and that we encourage others to do the same. No other action was suggested at this time. The problem of dues for foreign members was discussed, and several individuals suggested that funds are available to help in cases of demonstrated need. -
The Tennessee Meteorite Impact Sites and Changing Perspectives on Impact Cratering
UNIVERSITY OF SOUTHERN QUEENSLAND THE TENNESSEE METEORITE IMPACT SITES AND CHANGING PERSPECTIVES ON IMPACT CRATERING A dissertation submitted by Janaruth Harling Ford B.A. Cum Laude (Vanderbilt University), M. Astron. (University of Western Sydney) For the award of Doctor of Philosophy 2015 ABSTRACT Terrestrial impact structures offer astronomers and geologists opportunities to study the impact cratering process. Tennessee has four structures of interest. Information gained over the last century and a half concerning these sites is scattered throughout astronomical, geological and other specialized scientific journals, books, and literature, some of which are elusive. Gathering and compiling this widely- spread information into one historical document benefits the scientific community in general. The Wells Creek Structure is a proven impact site, and has been referred to as the ‘syntype’ cryptoexplosion structure for the United State. It was the first impact structure in the United States in which shatter cones were identified and was probably the subject of the first detailed geological report on a cryptoexplosive structure in the United States. The Wells Creek Structure displays bilateral symmetry, and three smaller ‘craters’ lie to the north of the main Wells Creek structure along its axis of symmetry. The question remains as to whether or not these structures have a common origin with the Wells Creek structure. The Flynn Creek Structure, another proven impact site, was first mentioned as a site of disturbance in Safford’s 1869 report on the geology of Tennessee. It has been noted as the terrestrial feature that bears the closest resemblance to a typical lunar crater, even though it is the probable result of a shallow marine impact. -
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. -
Annotated Bibliography: Women in Physics, Astronomy, and Related Disciplines
Annotated Bibliography: Women in Physics, Astronomy, and Related Disciplines Abir Am, Pnina and Dorinda Outram, eds. Uneasy Careers and Intimate Lives: Women in Science, 1787-1979. New Brunswick, NJ: Rutgers University Press, 1987. Abir Am and Outram’s volume includes a collection of essays about women in science that highlight the intersection of personal and professional spheres. All of the articles argue that the careers of women scientists are influenced by their family lives and that their family lives are impacted because of their scientific careers. This text is significant in two ways: first, it is one of the earliest examples of scholarship that moves beyond the recovering women in science, but placing them in the context of their home and work environments. Second, it suggests that historians of science can no longer ignore the private lives of their historical subjects. This volume contains four articles relating to women in physics and astronomy: Marilyn Bailey Ogilvie’s “Marital Collaboration: An Approach to Science” (pages 104-125), Sally Gregory Kohlstedt’s “Maria Mitchell and the Advancement of Women in Science” (pages 129-146), Helena M. Pycior’s “Marie Curie’s ‘Anti-Natural Path’: Time Only for Science and Family” (pages 191-215), and Peggy Kidwell’s “Cecelia Payne-Gaposchkin: Astronomy in the Family” (pages 216-238). As a unit, the articles would constitute and interesting lesson on personal and professional influences. Individually, the articles could be incorporated into lessons on a single scientist, offering a new perspective on their activities at work and at home. It complements Pycior, Slack, and Abir Am’s Creative Couples in the Sciences and Lykknes, Opitz, and Van Tiggelen’s For Better of For Worse: Collaborative Couples in the Sciences, which also look at the intersection of the personal and professional.