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Qiao Et Al., Sosigenes Pit Crater Age 1/51
Qiao et al., Sosigenes pit crater age 1 2 The role of substrate characteristics in producing anomalously young crater 3 retention ages in volcanic deposits on the Moon: Morphology, topography, 4 sub-resolution roughness and mode of emplacement of the Sosigenes Lunar 5 Irregular Mare Patch (IMP) 6 7 Le QIAO1,2,*, James W. HEAD2, Long XIAO1, Lionel WILSON3, and Josef D. 8 DUFEK4 9 1Planetary Science Institute, School of Earth Sciences, China University of 10 Geosciences, Wuhan 430074, China. 11 2Department of Earth, Environmental and Planetary Sciences, Brown University, 12 Providence, RI 02912, USA. 13 3Lancaster Environment Centre, Lancaster University, Lancaster LA1 4YQ, UK. 14 4School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, 15 Georgia 30332, USA. 16 *Corresponding author E-mail: [email protected] 17 18 19 20 Key words: Lunar/Moon, Sosigenes, irregular mare patches, mare volcanism, 21 magmatic foam, lava lake, dike emplacement 22 23 24 25 1/51 Qiao et al., Sosigenes pit crater age 26 Abstract: Lunar Irregular Mare Patches (IMPs) are comprised of dozens of small, 27 distinctive and enigmatic lunar mare features. Characterized by their irregular shapes, 28 well-preserved state of relief, apparent optical immaturity and few superposed impact 29 craters, IMPs are interpreted to have been formed or modified geologically very 30 recently (<~100 Ma; Braden et al. 2014). However, their apparent relatively recent 31 formation/modification dates and emplacement mechanisms are debated. We focus in 32 detail on one of the major IMPs, Sosigenes, located in western Mare Tranquillitatis, 33 and dated by Braden et al. -
No. 40. the System of Lunar Craters, Quadrant Ii Alice P
NO. 40. THE SYSTEM OF LUNAR CRATERS, QUADRANT II by D. W. G. ARTHUR, ALICE P. AGNIERAY, RUTH A. HORVATH ,tl l C.A. WOOD AND C. R. CHAPMAN \_9 (_ /_) March 14, 1964 ABSTRACT The designation, diameter, position, central-peak information, and state of completeness arc listed for each discernible crater in the second lunar quadrant with a diameter exceeding 3.5 km. The catalog contains more than 2,000 items and is illustrated by a map in 11 sections. his Communication is the second part of The However, since we also have suppressed many Greek System of Lunar Craters, which is a catalog in letters used by these authorities, there was need for four parts of all craters recognizable with reasonable some care in the incorporation of new letters to certainty on photographs and having diameters avoid confusion. Accordingly, the Greek letters greater than 3.5 kilometers. Thus it is a continua- added by us are always different from those that tion of Comm. LPL No. 30 of September 1963. The have been suppressed. Observers who wish may use format is the same except for some minor changes the omitted symbols of Blagg and Miiller without to improve clarity and legibility. The information in fear of ambiguity. the text of Comm. LPL No. 30 therefore applies to The photographic coverage of the second quad- this Communication also. rant is by no means uniform in quality, and certain Some of the minor changes mentioned above phases are not well represented. Thus for small cra- have been introduced because of the particular ters in certain longitudes there are no good determi- nature of the second lunar quadrant, most of which nations of the diameters, and our values are little is covered by the dark areas Mare Imbrium and better than rough estimates. -
TRANSIENT LUNAR PHENOMENA: REGULARITY and REALITY Arlin P
The Astrophysical Journal, 697:1–15, 2009 May 20 doi:10.1088/0004-637X/697/1/1 C 2009. The American Astronomical Society. All rights reserved. Printed in the U.S.A. TRANSIENT LUNAR PHENOMENA: REGULARITY AND REALITY Arlin P. S. Crotts Department of Astronomy, Columbia University, Columbia Astrophysics Laboratory, 550 West 120th Street, New York, NY 10027, USA Received 2007 June 27; accepted 2009 February 20; published 2009 April 30 ABSTRACT Transient lunar phenomena (TLPs) have been reported for centuries, but their nature is largely unsettled, and even their existence as a coherent phenomenon is controversial. Nonetheless, TLP data show regularities in the observations; a key question is whether this structure is imposed by processes tied to the lunar surface, or by terrestrial atmospheric or human observer effects. I interrogate an extensive catalog of TLPs to gauge how human factors determine the distribution of TLP reports. The sample is grouped according to variables which should produce differing results if determining factors involve humans, and not reflecting phenomena tied to the lunar surface. Features dependent on human factors can then be excluded. Regardless of how the sample is split, the results are similar: ∼50% of reports originate from near Aristarchus, ∼16% from Plato, ∼6% from recent, major impacts (Copernicus, Kepler, Tycho, and Aristarchus), plus several at Grimaldi. Mare Crisium produces a robust signal in some cases (however, Crisium is too large for a “feature” as defined). TLP count consistency for these features indicates that ∼80% of these may be real. Some commonly reported sites disappear from the robust averages, including Alphonsus, Ross D, and Gassendi. -
Insights from the Spatial Distribution of Floor-Fractured and Concentric Craters
52nd Lunar and Planetary Science Conference 2021 (LPI Contrib. No. 2548) 2245.pdf EVIDENCE FOR THE LUNAR PROCELLARUM BASIN: INSIGHTS FROM THE SPATIAL DISTRIBUTION OF FLOOR-FRACTURED AND CONCENTRIC CRATERS. S. Ravi and M.S. Robinson, School of Earth and Space Exploration, Arizona State University, Tempe, AZ – 85282, USA (Email: [email protected]) Introduction: Floor-fractured (FFCs) and Camera (LROC) Wide Angle Camera (WAC) GLD 100 DTM concentric craters (CCs) are impact craters that [13]. underwent modification by volcano-tectonic processes Both FFCs and CCs appear to be clustered within such as viscous relaxation or magmatic intrusion impact basins, with >60% of FFCs and CCs following basin-forming events (Fig. 1) [1-6]. concentrated along the western boundary of the proposed Procellarum basin [10] (Fig. 2). Whether the spatial distribution of FFCs and CCs are random or genetically related to impact basins is not well understood. If the latter is true, then we can not only use FFCs and CCs as proxies for identifying ancient basin Figure 1: Characteristics of floor-fractured and concentric rims, but we can also infer local and regional variations craters. (A) Vitello crater (D = 40km) exhibits radial/concentric fractures, (B) Gassendi crater (D = 100km) in the strength of the lunar lithosphere. Therefore, the exhibits mare basalt infill, and (C) an unnamed concentric overarching goal of this study is to determine and crater (D = 5km) exhibits an uplifted concentric ridge. analyze the statistical significance of the spatial distribution of FFCs and CCs with respect to impact The Procellarum KREEP Terrane (PKT) is one of basins. -
March 21–25, 2016
FORTY-SEVENTH LUNAR AND PLANETARY SCIENCE CONFERENCE PROGRAM OF TECHNICAL SESSIONS MARCH 21–25, 2016 The Woodlands Waterway Marriott Hotel and Convention Center The Woodlands, Texas INSTITUTIONAL SUPPORT Universities Space Research Association Lunar and Planetary Institute National Aeronautics and Space Administration CONFERENCE CO-CHAIRS Stephen Mackwell, Lunar and Planetary Institute Eileen Stansbery, NASA Johnson Space Center PROGRAM COMMITTEE CHAIRS David Draper, NASA Johnson Space Center Walter Kiefer, Lunar and Planetary Institute PROGRAM COMMITTEE P. Doug Archer, NASA Johnson Space Center Nicolas LeCorvec, Lunar and Planetary Institute Katherine Bermingham, University of Maryland Yo Matsubara, Smithsonian Institute Janice Bishop, SETI and NASA Ames Research Center Francis McCubbin, NASA Johnson Space Center Jeremy Boyce, University of California, Los Angeles Andrew Needham, Carnegie Institution of Washington Lisa Danielson, NASA Johnson Space Center Lan-Anh Nguyen, NASA Johnson Space Center Deepak Dhingra, University of Idaho Paul Niles, NASA Johnson Space Center Stephen Elardo, Carnegie Institution of Washington Dorothy Oehler, NASA Johnson Space Center Marc Fries, NASA Johnson Space Center D. Alex Patthoff, Jet Propulsion Laboratory Cyrena Goodrich, Lunar and Planetary Institute Elizabeth Rampe, Aerodyne Industries, Jacobs JETS at John Gruener, NASA Johnson Space Center NASA Johnson Space Center Justin Hagerty, U.S. Geological Survey Carol Raymond, Jet Propulsion Laboratory Lindsay Hays, Jet Propulsion Laboratory Paul Schenk, -
Glossary of Lunar Terminology
Glossary of Lunar Terminology albedo A measure of the reflectivity of the Moon's gabbro A coarse crystalline rock, often found in the visible surface. The Moon's albedo averages 0.07, which lunar highlands, containing plagioclase and pyroxene. means that its surface reflects, on average, 7% of the Anorthositic gabbros contain 65-78% calcium feldspar. light falling on it. gardening The process by which the Moon's surface is anorthosite A coarse-grained rock, largely composed of mixed with deeper layers, mainly as a result of meteor calcium feldspar, common on the Moon. itic bombardment. basalt A type of fine-grained volcanic rock containing ghost crater (ruined crater) The faint outline that remains the minerals pyroxene and plagioclase (calcium of a lunar crater that has been largely erased by some feldspar). Mare basalts are rich in iron and titanium, later action, usually lava flooding. while highland basalts are high in aluminum. glacis A gently sloping bank; an old term for the outer breccia A rock composed of a matrix oflarger, angular slope of a crater's walls. stony fragments and a finer, binding component. graben A sunken area between faults. caldera A type of volcanic crater formed primarily by a highlands The Moon's lighter-colored regions, which sinking of its floor rather than by the ejection of lava. are higher than their surroundings and thus not central peak A mountainous landform at or near the covered by dark lavas. Most highland features are the center of certain lunar craters, possibly formed by an rims or central peaks of impact sites. -
Det.,Class.,Lunar Rilles 1
UNIVERSITÀ DEGLI STUDI DI PERUGIA DIPARTIMENTO DI FISICA E GEOLOGIA Corso di Laurea Magistrale in Scienze e Tecnologie Geologiche TESI DI LAUREA DETECTION, CLASSIFICATION, AND ANALYSIS OF SINUOUS RILLES ON THE NEAR-SIDE OF THE MOON Laureando: Relatore: SOFIA FIORUCCI LAURA MELELLI Correlatore: MARIA TERESA BRUNETTI Anno Accademico 2019/2020 “I have not failed. I've just found 10,000 ways that won't work.” ― Thomas A. Edison Table of Contents 1 Chapter 1: Introduction .................................................................................. 1 1.1 The Moon Mapping Project ..................................................................................... 1 1.2 Chang’E missions ...................................................................................................... 4 1.3 Moon Mapping Topics ............................................................................................. 9 1.3.1 Topic 1 –Map of the solar wind .............................................................................................. 10 1.3.2 Topic 2 – Geomorphologic map of the Moon ....................................................................... 11 1.3.3 Topic 3 – Data processing of Chang’E-1 mission ................................................................. 13 1.3.4 Topic 4 –Map of element distribution ................................................................................... 14 1.3.5 Topic 5 – 3D Visualization system ......................................................................................... 14 -
South Pole-Aitken Basin
Feasibility Assessment of All Science Concepts within South Pole-Aitken Basin INTRODUCTION While most of the NRC 2007 Science Concepts can be investigated across the Moon, this chapter will focus on specifically how they can be addressed in the South Pole-Aitken Basin (SPA). SPA is potentially the largest impact crater in the Solar System (Stuart-Alexander, 1978), and covers most of the central southern farside (see Fig. 8.1). SPA is both topographically and compositionally distinct from the rest of the Moon, as well as potentially being the oldest identifiable structure on the surface (e.g., Jolliff et al., 2003). Determining the age of SPA was explicitly cited by the National Research Council (2007) as their second priority out of 35 goals. A major finding of our study is that nearly all science goals can be addressed within SPA. As the lunar south pole has many engineering advantages over other locations (e.g., areas with enhanced illumination and little temperature variation, hydrogen deposits), it has been proposed as a site for a future human lunar outpost. If this were to be the case, SPA would be the closest major geologic feature, and thus the primary target for long-distance traverses from the outpost. Clark et al. (2008) described four long traverses from the center of SPA going to Olivine Hill (Pieters et al., 2001), Oppenheimer Basin, Mare Ingenii, and Schrödinger Basin, with a stop at the South Pole. This chapter will identify other potential sites for future exploration across SPA, highlighting sites with both great scientific potential and proximity to the lunar South Pole. -
Serving the Community in a Time of Need Tribe Continues Core Services
February 1, 2019 suwarog’omasuwiini (9) Odd Culture 3 • Health 4-5 • Education 6 • Sports 16 Cooking Clifford Subscription or advertising PRSRT STD information, 970-563-0118 matters with attends book U.S. POSTAGE PAID Ignacio, CO 81137 $29 one year subsciption family fair Permit No. 1 $49 two year subscription PAGES 5 PAGE 6 March 27, 2020 Vol. LII, No. 7 FOOD DISTRIBUTION SOUTHERN UTE INDIAN TRIBE Tribe increases safety So. Ute Food Distribution: Serving the measures and issues community in a time of need ‘Stay At Home’ order By Jeremy Wade Shockley THE SOUTHERN UTE DRUM The Southern Ute Indian Tribe’s Food Distribution program has seen an uptick in demand from the local community, and increasingly, younger families are benefit- ing from the service. This was before the COVID-19 crisis increased needs for food sup- McKayla Lee/SU Drum plies throughout the country; Southern Ute Emergency and Risk Manager, Donald especially true in rural com- Brockus helps brainstorm ways to best operate the munities where resources are Southern Ute Permanent Fund during the COVID-19 often limited. The Southern pandemic. Ute Food Distribution pro- Staff report 25, 2020 at 3:30 p.m. gram continues to provide SOUTHERN UTE INdiAN TRIBE Because it is crucial to nutritious and healthy food slow down the spread of choices to the community Jeremy Wade Shockley/SU Drum archive The Southern Ute In- COVID-19, the Tribe is during the crisis under the Food Distribution Program Manager, Deanna Frost emphasizes a healthy diet with the dian Tribal Chairman, requiring all tribal mem- direction of program man- program’s goals of providing more fresh produce, including fresh farm eggs. -
China's Chang'e-5 Landing Site
52nd Lunar and Planetary Science Conference 2021 (LPI Contrib. No. 2548) 1306.pdf CHINA’S CHANG’E-5 LANDING SITE: AN OVERVIEW. Yuqi Qian1,2, Long Xiao1*, James W. Head2*, Car- olyn H. van der Bogert3, Harald Hiesinger3, Lionel Wilson4, and Yuefeng Yuan5, 1Planetary Science Institute, School of Earth Sciences, China University of Geosciences, Wuhan 430074, China ([email protected]), 2Department of Earth, Environmental, and Planetary Sciences, Brown University, Providence 02912, USA ([email protected]), 3Institut für Planetologie, Westfälische Wilhelms-Universität Münster, Münster 48149, Germany, 4Lancaster Environment Centre, Lancaster University, Lancaster LA1 4YQ, UK, 5Institute of Geophysics and Geomatics, China University of Geosciences, Wuhan 430074, China Introduction: The Chang’e-5 (CE-5) mission is the unit, and Rima Sharp is the most likely source re- China’s first lunar sample return mission and the first gion for the Em4/P58 mare basalts [3,10]. sample return mission since Luna-24 in 1976. CE-5 Scientific Significance of the Returned Samples: landed on December 1, 2020 at 43.1°N, 51.8°W in The scientific significance of the young mare basalts is Northern Oceanus Procellarum (Fig. 1), collected 1731 summarized in our previous studies [2,3] and by other g of lunar samples, including a ~1 m of drilling core, authors [e.g., 4,11]. In [3], we first summarized the 27 and returned to the Earth on December 17, 2020. The fundamental questions that may be answered by the CE-5 landing site is ~170 km ENE of Mons Rümker returned CE-5 samples, including questions about [1], and is characterized by some of the youngest mare chronology, petrogenesis, regional setting, geodynamic basalts (Em4/P58) on the Moon [2,3] – materials not & thermal evolution, and regolith formation (Tab. -
What's Hot on the Moon Tonight?: the Ultimate Guide to Lunar Observing
What’s Hot on the Moon Tonight: The Ultimate Guide to Lunar Observing Copyright © 2015 Andrew Planck All rights reserved. No part of this book may be reproduced in any written, electronic, recording, or photocopying without written permission of the publisher or author. The exception would be in the case of brief quotations embodied in the critical articles or reviews and pages where permission is specifically granted by the publisher or author. Although every precaution has been taken to verify the accuracy of the information contained herein, the publisher and author assume no responsibility for any errors or omissions. No liability is assumed for damages that may result from the use of information contained within. Books may be purchased by contacting the publisher or author through the website below: AndrewPlanck.com Cover and Interior Design: Nick Zelinger (NZ Graphics) Publisher: MoonScape Publishing, LLC Editor: John Maling (Editing By John) Manuscript Consultant: Judith Briles (The Book Shepherd) ISBN: 978-0-9908769-0-8 Library of Congress Catalog Number: 2014918951 1) Science 2) Astronomy 3) Moon Dedicated to my wife, Susan and to my two daughters, Sarah and Stefanie Contents Foreword Acknowledgments How to Use this Guide Map of Major Seas Nightly Guide to Lunar Features DAYS 1 & 2 (T=79°-68° E) DAY 3 (T=59° E) Day 4 (T=45° E) Day 5 (T=24° E.) Day 6 (T=10° E) Day 7 (T=0°) Day 8 (T=12° W) Day 9 (T=21° W) Day 10 (T= 28° W) Day 11 (T=39° W) Day 12 (T=54° W) Day 13 (T=67° W) Day 14 (T=81° W) Day 15 and beyond Day 16 (T=72°) Day 17 (T=60°) FINAL THOUGHTS GLOSSARY Appendix A: Historical Notes Appendix B: Pronunciation Guide About the Author Foreword Andrew Planck first came to my attention when he submitted to Lunar Photo of the Day an image of the lunar crater Pitatus and a photo of a pie he had made. -
Arxiv:0706.3947V1
Transient Lunar Phenomena: Regularity and Reality Arlin P.S. Crotts Department of Astronomy, Columbia University, Columbia Astrophysics Laboratory, 550 West 120th Street, New York, NY 10027 ABSTRACT Transient lunar phenomena (TLPs) have been reported for centuries, but their nature is largely unsettled, and even their existence as a coherent phenomenon is still controversial. Nonetheless, a review of TLP data shows regularities in the observations; a key question is whether this structure is imposed by human observer effects, terrestrial atmospheric effects or processes tied to the lunar surface. I interrogate an extensive catalog of TLPs to determine if human factors play a determining role in setting the distribution of TLP reports. We divide the sample according to variables which should produce varying results if the determining factors involve humans e.g., historical epoch or geographical location of the observer, and not reflecting phenomena tied to the lunar surface. Specifically, we bin the reports into selenographic areas (300 km on a side), then construct a robust average count for such “pixels” in a way discarding discrepant counts. Regardless of how we split the sample, the results are very similar: roughly 50% of the report count originate from the crater Aristarchus and vicinity, 16% from Plato, 6% from recent, major impacts (Copernicus, ∼ ∼ Kepler and Tycho - beyond Aristarchus), plus a few at Grimaldi. Mare Crisium produces a robust signal for three of five averages of up to 7% of the reports (however, Crisium subtends more than one pixel). The consistency in TLP report counts for specific features on this list indicate that 80% of the reports arXiv:0706.3947v1 [astro-ph] 27 Jun 2007 ∼ are consistent with being real (perhaps with the exception of Crisium).