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EPSC2013-476, 2013 European Planetary Science Congress 2013 Eeuropeapn Planetarsy Science Ccongress C Author(S) 2013
EPSC Abstracts Vol. 8, EPSC2013-476, 2013 European Planetary Science Congress 2013 EEuropeaPn PlanetarSy Science CCongress c Author(s) 2013 Geology and astrobiological implications of Argyre, Mars J.M. Dohm (1), R. El-Maarry (2), R.J. Soare (3), J.-P. Williams (4), S.J. Conway (5), H. Miyamoto (6), and S. Maruyama (1) (1) Earth-Life Science Institute, Tokyo Institute of Technology, Meguro, Tokyo, Japan 152-8551 ([email protected]), (2) Physikalisches Institut, Bern Universität, Berne, Switzerland 3012, (3) Geography Department, Dawson College, Montreal, Canada H3Z 1A4, (4) Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125, (5) Department of Physical Sciences, Open University, Milton Keynes, United Kingdom MK7 6AA, (6) The Museum, The University of Tokyo, Tokyo, Japan 113-003 1. Introduction investigation includes the Argyre floor and rim, transition zone, and the southeast margin of the Thaumasia plateau Using Viking and post-Viking data, the detailed [1]. Also shown is a newly identified paleolake basin (wide geological investigation of the Argyre impact basin arrow) located on the western margin of the Argyre impact and surroundings (30°S to 65°S, 290°E to 340.0°E; basin and the Uzboi drainage system (narrow arrows), Fig.1) has: (1) resulted in a new geologic map of the possible spillway separating the paleolake basin from the region (Fig.2); (2) revealed the stratigraphical history Argyre basin at a present-day topographic interval nearing of the region, including distinct sequence stratigraphy 1.5 km (dashed line), and a transect for topographic profile marking a lake that formed shortly after the Argyre shown in Fig. -
Rhodochrosite Gems Unstable Colouration of Padparadscha-Like
Volume 36 / No. 4 / 2018 Effect of Blue Fluorescence on the Colour Appearance of Diamonds Rhodochrosite Gems The Hope Diamond Unstable Colouration of in London Padparadscha-like Sapphires Volume 36 / No. 4 / 2018 Cover photo: Rhodochrosite is prized as both mineral specimens and faceted stones, which are represented here by ‘The Snail’ (5.5 × 8.6 cm, COLUMNS from N’Chwaning, South Africa) and a 40.14 ct square-cut gemstone from the Sweet Home mine, Colorado, USA. For more on rhodochrosite, see What’s New 275 the article on pp. 332–345 of this issue. Specimens courtesy of Bill Larson J-Smart | SciAps Handheld (Pala International/The Collector, Fallbrook, California, USA); photo by LIBS Unit | SYNTHdetect XL | Ben DeCamp. Bursztynisko, The Amber Magazine | CIBJO 2018 Special Reports | De Beers Diamond ARTICLES Insight Report 2018 | Diamonds — Source to Use 2018 The Effect of Blue Fluorescence on the Colour 298 Proceedings | Gem Testing Appearance of Round-Brilliant-Cut Diamonds Laboratory (Jaipur, India) By Marleen Bouman, Ans Anthonis, John Chapman, Newsletter | IMA List of Gem Stefan Smans and Katrien De Corte Materials Updated | Journal of Jewellery Research | ‘The Curse Out of the Blue: The Hope Diamond in London 316 of the Hope Diamond’ Podcast | By Jack M. Ogden New Diamond Museum in Antwerp Rhodochrosite Gems: Properties and Provenance 332 278 By J. C. (Hanco) Zwaan, Regina Mertz-Kraus, Nathan D. Renfro, Shane F. McClure and Brendan M. Laurs Unstable Colouration of Padparadscha-like Sapphires 346 By Michael S. Krzemnicki, Alexander Klumb and Judith Braun 323 333 © DIVA, Antwerp Home of Diamonds Gem Notes 280 W. -
Minerals of the San Luis Valley and Adjacent Areas of Colorado Charles F
New Mexico Geological Society Downloaded from: http://nmgs.nmt.edu/publications/guidebooks/22 Minerals of the San Luis Valley and adjacent areas of Colorado Charles F. Bauer, 1971, pp. 231-234 in: San Luis Basin (Colorado), James, H. L.; [ed.], New Mexico Geological Society 22nd Annual Fall Field Conference Guidebook, 340 p. This is one of many related papers that were included in the 1971 NMGS Fall Field Conference Guidebook. Annual NMGS Fall Field Conference Guidebooks Every fall since 1950, the New Mexico Geological Society (NMGS) has held an annual Fall Field Conference that explores some region of New Mexico (or surrounding states). Always well attended, these conferences provide a guidebook to participants. Besides detailed road logs, the guidebooks contain many well written, edited, and peer-reviewed geoscience papers. These books have set the national standard for geologic guidebooks and are an essential geologic reference for anyone working in or around New Mexico. Free Downloads NMGS has decided to make peer-reviewed papers from our Fall Field Conference guidebooks available for free download. Non-members will have access to guidebook papers two years after publication. Members have access to all papers. This is in keeping with our mission of promoting interest, research, and cooperation regarding geology in New Mexico. However, guidebook sales represent a significant proportion of our operating budget. Therefore, only research papers are available for download. Road logs, mini-papers, maps, stratigraphic charts, and other selected content are available only in the printed guidebooks. Copyright Information Publications of the New Mexico Geological Society, printed and electronic, are protected by the copyright laws of the United States. -
Lower Applegate Area
... (26) ELDER MANGANESE LOWER APPLEGATE AREA Rhodonite ore with some rhodochrosite and hard manganese oxides in fracture planes occurs in a black, siliceous, metamorphosed sediment. The rock may be cobbed to show fairly large pieces of deep pink rhodonite. From the standpoint of metallurgical manganese ore, the prospect shows little promise. Authority: FWL (?) Department report Owner: J. R. Elder(?) Location: Sec. 6, T. 39 S., R. 5 W., south of Mungers Creek. Geology: "The rocks of the locality are old, highly metamorphosed sediments." n'l'he only opening -~he deposit is an opencut about 10 ft. long with a face about 8 ft. high, all in a black, siliceous, metamorphosed sediment, into which eydrothermal solutions have penetrated, depositing quartz, rhodonite and a small amount of rhodochrosite in irregular small seams and lenses. A thin\. coating of hard manganese oxides covers some fracture planes, and a little soft black oxide occurs in joint cracks near the surface." "The rock may be cobbed to show fairly large pieces of deep pink rhodonite, and several hundred pounds has been sold to collectors and lapidaries. The work done on the deposit has been to obtain rhodonite for this purpose". "The surface indicttes a considerable area of similar country rock, and probably trenching would show a greuter extent of the rhodonite oc currence. From the standpoint of producing a metallurgical manganese ore, however, the prospect shows little promise." SITE NP.ME: ELDER MANGANESE COUNTY: JOSEPHINE SYNONYMS: OWNER: LOCATION: MINING DIS:LOWER APPLEGATE BLM FS DIS: QUADl: GR.ANTS PASS SCALE: 100000 TOWNSHIP:039S QUAD2: OREGON CAVES SCALE: 62500 R.ANGE:005W RIVER BASIN:17 SECTION:06 PHYSIOG: 13 KLAMATH MOUNTAINS SECT FRACT:S USGS NUM: M013351 LAT:42-12-22N DOGAMI MLR: LONG:123-20-21W REPORTER: LEE, W UTM N:4672500 AFFILIATION: USGS UTM E:472000 REP DATE: 74 01 UTM Z:+10 UPDATE BY: FERNS, MARK L. -
Characterisation of Carbonate Minerals from Hyperspectral TIR Scanning Using Features at 14 000 and 11 300 Nm
Australian Journal of Earth Sciences An International Geoscience Journal of the Geological Society of Australia ISSN: 0812-0099 (Print) 1440-0952 (Online) Journal homepage: http://www.tandfonline.com/loi/taje20 Characterisation of carbonate minerals from hyperspectral TIR scanning using features at 14 000 and 11 300 nm D. Green & M. Schodlok To cite this article: D. Green & M. Schodlok (2016): Characterisation of carbonate minerals from hyperspectral TIR scanning using features at 14 000 and 11 300 nm, Australian Journal of Earth Sciences, DOI: 10.1080/08120099.2016.1225601 To link to this article: http://dx.doi.org/10.1080/08120099.2016.1225601 Published online: 13 Nov 2016. Submit your article to this journal Article views: 13 View related articles View Crossmark data Full Terms & Conditions of access and use can be found at http://www.tandfonline.com/action/journalInformation?journalCode=taje20 Download by: [Bundesstalt Fuer Geowissenschaften] Date: 21 November 2016, At: 02:06 AUSTRALIAN JOURNAL OF EARTH SCIENCES, 2016 http://dx.doi.org/10.1080/08120099.2016.1225601 Characterisation of carbonate minerals from hyperspectral TIR scanning using features at 14 000 and 11 300 nm D. Greena and M. Schodlokb aMineral Resources Tasmania, Department of State Growth, Hobart, Australia; bBundesanstalt fur€ Geowissenschaften und Rohstoffe (Federal Institute for Geosciences and Natural Resources), Hannover, Germany ABSTRACT ARTICLE HISTORY Rapid characterisation of carbonate phases in hyperspectral reflectance spectra acquired from drill Received 11 February 2016 core material has important implications for mineral exploration and resource modelling. Major Accepted 9 August 2016 infrared active features of carbonates lie in the thermal region around 6500 nm, 11 300 nm and KEYWORDS 14 000 nm, with the latter two features being most useful for differentiating mineral species. -
Dissolution and Solubility of Calcite-Rhodochrosite Solid Solutions
Zhu et al. Geochem Trans (2021) 22:1 https://doi.org/10.1186/s12932-021-00075-1 Geochemical Transactions RESEARCH ARTICLE Open Access Dissolution and solubility of calcite-rhodochrosite solid solutions [(Ca1-xMnx)CO3] at 25 °C Yinian Zhu1* , Peijie Nong1, Nan Mo1, Zongqiang Zhu2,3*, Huan Deng1, Shen Tang2, Hongqu Yang1, Lihao Zhang2 and Xingxing Wang1 Abstract A complete series of calcite-rhodochrosite solid solutions [(Ca1-xMnx)CO3] are prepared, and their dissolution pro- cesses in various water samples are experimentally investigated. The crystal morphologies of the solid solutions vary from blocky spherical crystal aggregates to smaller spheres with an increasing incorporation of Mn in the solids. Regarding dissolution in N2-degassed water, air-saturated water and CO2-saturated water at 25 °C, the aqueous Ca and Mn concentrations reach their highest values after 1240–2400 h, 6–12 h and < 1 h, respectively, and then decrease gradually to a steady state; additionally, the ion activity products (log_IAP) at the fnal steady state ( solubil- ity products in log_K ) are estimated to be 8.46 0.06, 8.44 0.10 and 8.59 0.10 for calcite [CaCO ], ≈respec- sp − ± − ± − ± 3 tively, and 10.25 0.08, 10.26 0.10 and 10.28 0.03, for rhodochrosite [MnCO3], respectively. As XMn increases, the log_IAP− values ±decrease− from ± 8.44 ~ 8.59− for calcite± to 10.25 ~ 10.28 for rhodochrosite. The aqueous Mn − − − − concentrations increase with an increasing Mn/(Ca Mn) molar ratio (XMn) of the (Ca1-xMnx)CO3 solid solutions, while the aqueous Ca concentrations show the highest values+ at X 0.53–0.63. -
Geological Setting and Genesis of Coticules (Spessartine Metapelites) in the Lower Ordovician of the Stavelot Massif, Belgium
Journal of the Geological Society, London, Vol. 143, 1986, pp. 253-258, 8 figs, 2 tables Printed in Northern Ireland Geological setting and genesis of coticules (spessartine metapelites) in the Lower Ordovician of the Stavelot Massif, Belgium J. LAMENS’, F. GEUKENS’ & W. VIAENE2 Instituut voor Aardwetenschappen, Katholieke Universiteit Leuven, Redingenstraat 16, B-3000 Leuven, Belgium ’Afdeling Fysico-Chemische Geologie, Katholieke Universiteit Leuven, Celestijnenlaan 200C, B-3030 Heverlee, Belgium Abstract: The LowerOrdovician in the CaledonianStavelot Massif (Belgium) containsa coticule member, probablyArenig in age, composed of redhematite-rich shales alternating with thin yellowish coticulebeds. These coticules are fine-grained highly manganiferousmetamorphic rocks mainly composed of spessartine garnet, mica and quartz. Similar rocks of about the same age occur in several localities along the Appalachian and Caledonian fold belts. The Belgian coticules are thought to haveoriginated from marly sediments which had beendeposited rapidly, probably by density currents, and in which CaCO, had been diagenetically replaced by MnCO,. During metamorphism, spessartine garnets- were formed from this MnCO, and mica. Manganese and iron are thought to have originated from volcanic-exhalative processes. The Stavelot Massif is one of the five Caledonian Massifs in could be used as a key lithology for correlation along the Belgium. It consists of MiddleCambrian to Lower Appalachian and Caledonian fold belts. Similar rocks have Ordovician strata (Fig. 1, Table 1). The southeastern partof also been described from older (Precambrian) and younger the Stavelot Massifis at a low metamorphicgrade. The strata(Roy & Purkait 1968; Vearncombe 1983; Minnigh LowerOrdovician of the Stavelot Massifis called 1979). Most of these spessartine-rich rocks, however, have “Salmian”.It has been subdivided into Salmian 1 (Sml), morequartz and less mica than the Belgian coticules. -
Mineralization of the Luis Lopez Epithermal Manganese Deposits in Light of Fluid Inclusion and Geologic Studies David I
New Mexico Geological Society Downloaded from: http://nmgs.nmt.edu/publications/guidebooks/34 Mineralization of the Luis Lopez epithermal manganese deposits in light of fluid inclusion and geologic studies David I. Norman, Khosrow Bazrafshan, and Ted L. Eggleston, 1983, pp. 247-251 in: Socorro Region II, Chapin, C. E.; Callender, J. F.; [eds.], New Mexico Geological Society 34th Annual Fall Field Conference Guidebook, 344 p. This is one of many related papers that were included in the 1983 NMGS Fall Field Conference Guidebook. Annual NMGS Fall Field Conference Guidebooks Every fall since 1950, the New Mexico Geological Society (NMGS) has held an annual Fall Field Conference that explores some region of New Mexico (or surrounding states). Always well attended, these conferences provide a guidebook to participants. Besides detailed road logs, the guidebooks contain many well written, edited, and peer-reviewed geoscience papers. These books have set the national standard for geologic guidebooks and are an essential geologic reference for anyone working in or around New Mexico. Free Downloads NMGS has decided to make peer-reviewed papers from our Fall Field Conference guidebooks available for free download. Non-members will have access to guidebook papers two years after publication. Members have access to all papers. This is in keeping with our mission of promoting interest, research, and cooperation regarding geology in New Mexico. However, guidebook sales represent a significant proportion of our operating budget. Therefore, only research papers are available for download. Road logs, mini-papers, maps, stratigraphic charts, and other selected content are available only in the printed guidebooks. Copyright Information Publications of the New Mexico Geological Society, printed and electronic, are protected by the copyright laws of the United States. -
STABLE ISOTOPES of HYDROTHERMAL CARBONATE MINERALS in the BUTTE PORPHYRY-LODE DEPOSITS, MONTANA Ryan Stevenson Montana Tech of the University of Montana
Montana Tech Library Digital Commons @ Montana Tech Graduate Theses & Non-Theses Student Scholarship Summer 2015 STABLE ISOTOPES OF HYDROTHERMAL CARBONATE MINERALS IN THE BUTTE PORPHYRY-LODE DEPOSITS, MONTANA Ryan Stevenson Montana Tech of the University of Montana Follow this and additional works at: http://digitalcommons.mtech.edu/grad_rsch Part of the Biogeochemistry Commons, Geology Commons, and the Geophysics and Seismology Commons Recommended Citation Stevenson, Ryan, "STABLE ISOTOPES OF HYDROTHERMAL CARBONATE MINERALS IN THE BUTTE PORPHYRY-LODE DEPOSITS, MONTANA" (2015). Graduate Theses & Non-Theses. 44. http://digitalcommons.mtech.edu/grad_rsch/44 This Thesis is brought to you for free and open access by the Student Scholarship at Digital Commons @ Montana Tech. It has been accepted for inclusion in Graduate Theses & Non-Theses by an authorized administrator of Digital Commons @ Montana Tech. For more information, please contact [email protected]. STABLE ISOTOPES OF HYDROTHERMAL CARBONATE MINERALS IN THE BUTTE PORPHYRY-LODE DEPOSITS, MONTANA by Ryan Stevenson A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science in Geosciences Montana Tech 2015 ii Abstract The stable isotopic compositions of over 90 hydrothermal carbonate minerals in the Butte porphyry-lode system were analyzed. These samples came from the underground workings as well as the active Continental Pit area. Most material came from polymetallic “Main Stage” veins which post-date the porphyry Cu-Mo mineralization of Butte. Some samples from late calcite-stellerite veins were also included in the study. Rhodochrosite 13C and 18O values range from -8.3 to -2.9‰ (average of -6.7±1.0‰) and -1.8 to 12.8‰ (average of 3.6 ±3.4‰) respectively, while calcite 13C and 18O values range from -9.0 to -2.6‰ (average of -5.4 ± 1.5‰) and -4.4 to 12.3‰ (average of 6.2±2.8‰) respectively. -
Morphology and Temporal Evolution of the Ejecta of Hale Crater in the Argyre Basin, Mars: Results from High Resolution Mapping
44th Lunar and Planetary Science Conference (2013) 3064.pdf MORPHOLOGY AND TEMPORAL EVOLUTION OF THE EJECTA OF HALE CRATER IN THE ARGYRE BASIN, MARS: RESULTS FROM HIGH RESOLUTION MAPPING. M. R. El Maarry1 J. M. Dohm2, G. Michael3, and N. Thomas1, 1Physikalisches Institut, Bern Universtät, Sidler Str., 5, 3012, Berne, Switzer- land. 2Department of Hydrology and water resources, University of Arizona, Tucson, AZ, USA. 3Department of Earth Sciences, Freie Universitaet Berlin, Berlin, Germany. Introduction: Various lines of evidence point to recent hydrological, periglacial, and glacial activities at several locations on Mars [1–6]. In this study, we in- vestigate one such region in the Nereidum Montes, north of Argyre basin, including Hale crater and its ejecta (Fig. 1). In particular, we concentrate on the distal part of the ejecta as mapped by [7]. [7] published a geomorphological map of the region surrounding Hale crater that characterizes the behavior of the distal part of the ejecta as being fluid-like. Additionally, they mapped a number of valleys associated with these de- posits, interpreting them to be carved by impact- generated meltwater from ice-rich terrain. We use re- cently acquired images from the HiRISE camera, among other datasets, to perform detailed study of the- se deposits. We concentrate on a region west of Hale Fig.1. [a] Daylight IR mosaic of Hale crater and its surround- crater that includes a 38-km-wide impact crater, re- ings. The Moanda cater-valley system (MCVS) can be seen cently named Moanda, cut by a well-developed valley west of Hale crater (black box). -
Appendix the Economic Commodities
Appendix The Economic Commodities This section provides a commodity cross-reference to ARSENIC the geological descriptions of the main text. The page (209-210) numbers given after most section headings (main entries are enumerated in italic type) are intended to direct the World 1979 production of arsenic trioxide 32 824 t. reader to the pages in which the geological descriptions Share of production: USSR 23%, France 22%, Sweden are found. The brief entries also give some idea of the 21%, Mexico 18%, Namibia 8%. These figures exclude world's annual production, and the five major countries the USA, whose production figures are withheld. Arse that share in this. Commodity production figures are nic compounds are used in herbicides and plant desic based on those of the Bureau of Mines (1980a,b) and cants, wood preservatives, mineral flotation agents, United Nations (1979). Other important references are glassware and pharmaceuticals. Arsenic is produced Brobst and Pratt (1973) and LeFond (1975). always as a by-product of some metal, and the principal There is no unified quantity of measure. Commodities ore minerals are arsenopyrite FeAsS, lOllingite FeAs2, may be traditionally quoted in metric tonnes (denoted smaltite CoAs2, niccolite NiAs, tennantite by t) ( = 2205 pounds), long tons ( = 2240 pounds) and (Cu,Fe)sAs2S7, enargite Cu3AsS4, proustite Ag3AsS3 short tons (2000 pounds). Precious metals are usually and relagar AsS (Gualtieri, 1973). quoted in troy ounces ( = 31.103 grams), diamonds in carats ( = 0.2 gram) and mercury in flasks ( = 76 pounds). The standard unit used throughout this book is the ASBESTOS metric tonne (tonne), which is equal to 1000 000 grams (1 Mg). -
Abstracts of the Annual Meeting of Planetary Geologic Mappers, Washington, DC, 2013
Abstracts of the Annual Meeting of Planetary Geologic Mappers, Washington, DC, 2013 Edited by: James A. Skinner, Jr. U. S. Geological Survey, Flagstaff, AZ David Williams Arizona State University, Tempe, AZ NOTE: Abstracts in this volume can be cited using the following format: Graupner, M. and Hansen, V.L., 2013, Structural and Geologic Mapping of Tellus Region, Venus, in Skinner, J.A., Jr. and Williams, D. A., eds., Abstracts of the Annual Meeting of Planetary Geologic Mappers, Washington, DC, June 19-21, 2013. SCHEDULE OF EVENTS Wednesday, June 19 – Planetary Geologic Mappers Meeting Time Planet/Body Topic 8:30 am Arrive – 6th Street SW and Independence Ave SW 9:00 Welcome/Logistics 9:15 USGS Map Coordinator Remarks (K. Tanaka) 9:30 NASA HQ and Program Remarks (M. Kelley) 9:45 GIS and Web Updates (T. Hare) 10:00 Mercury Caloris Basin (D. Buczkowski) 10:20 Venus Beta-Atla-Themis (BAT) region (L. Bleamaster) 10:40 Moon LQ-29 (A. Yingst) 11:00 Moon LQ-30 (S. Mest) 11:20 POSTER VIEWING / DEPART FOR METEORITE TOUR 12:00 pm LUNCH 1:00 POSTER VIEWING 2:30 Mars Nili Fossae: Possible Hot Springs? (MESDT – Grosse Pointe) 2:40 Mars MSL Landing Ellipse (F. Calef) 3:00 Mars Global Map, etc. (K. Tanaka) 3:20 Mars Highland Resurfacing (R. Irwin) 3:40 GROUP DISCUSSION 5:00 ADJOURN Thursday, June 20 – Planetary Geologic Mappers Meeting Time Planet/Body Topic 8:30 Arrive – 6th Street SW and Independence Ave SW 9:00 Mars Uzboi Vallis (S. Wilson) 9:20 Mars Runanga-Jörn (J. Skinner) 9:40 Mars Aeolis Dorsa (R.