 | | Report (chapter) | | Library on July 15, 2015 The study of desert dunes in Australia C. ROWLAND TWIDALE School of Earth and...Geophysics, University of Adelaide, Adelaide 5005, Australia (e-mail: rowl.twidale@adelaide.edu.au) Abstract:...the sand ridges that were so much a part of his desert experience. Scientific investigations of the dunes...include the major palaeodunefields of southern Australia. We must examine old ideas, old theories, although...of their validity. (Einstein & Infeld 1938) Australia is the driest inhabited continent. Climatic statistics |  | | Journal (article/letter/editorial) | | Indexmapof Utahshowing location of DrumMountains region. positsof thistype. 2 The purpose of thispaperis... EUGENE CALLAGHAN. the west side of the $evier Desert in Millard and Juab Counties (Fig. v.). The mountainsare...narrow canyons,diverge from the crestlineof the range,which has a northwesterlytrend (Fig. R.âąI W R...Black Boy No. 5, (3) Ibex, (4) Keystone, (5) Utah Central,(6) E.' P. H., and (7) Charmed. MANGANESE DEPOSITS...ed on the southwestside of the mountains. The. region,typical of much of the Great Basin, is 'barren |  | | Journal (article/letter/editorial) | | to the atmospheric aerosol burden not only over desert regions where atmospheric concentrations are highest...mineralogical and optical properties change with source region and are a valuable input in dust models. Implementing...dust sources contribute a large fraction to the northern African dust sources in particular, but also to...dust from the atmosphere and thus the possible range of transport distance are currently not able to...microbiological matter may be transported from the source region to deposition environment introducing foreign microbial |  | | Journal (article/letter/editorial) | | Laboratories, Private Mailbag, Sutherland, N.S.W. 2232, Australia and BRIANG. DAVEYand DAVID J. GRAY Departmentof...Departmentof Soil Science, Sydney University, Sydney, Australia (Received June 25, 1985; accepted in revisedform... 1 uranium ore body, Alligator Rivers region, N.T., Australia. The significant phases were identified...iron oxide, crystalline iron oxide and a clay/quartz resistate. The distribution of 23*U,23âU,2qh and...than the half-life of 2qh (7.52 X 10â y). The clay/quartz resistate is enriched in 23*Udescendants in such |  | | Journal (article/letter/editorial) | | and students discover, use, and build upon a wide range of content in a trusted digital archive. We use...west of Genoa, may be concisely described as a region of subdued mountains that has been partly submerged...filled bays. The peninsula of Sorrento, on its northern side, once resembled the Riviera, but it has...fall of the level of its waters. Like so many desert lakes which have no overflow, and unlike lakes...the mountains of Tergawar within the Persian territory, and on reaching the plain of LTrmi unite into |  | Abouchami, Wafa, NĂ€the, Kerstin, Kumar, Ashwini, Galer, Stephen J.G., Jochum, Klaus Peter, Williams, Earle, Horbe, Adriana M.C., Rosa, JoĂŁo W.C., Balsam, William, Adams, David, Mezger, Klaus, Andreae, Meinrat O. (2013) Geochemical and isotopic characterization of the BodĂ©lĂ© Depression dust source and implications for transatlantic dust transport to the Amazon Basin. Earth and Planetary Science Letters, 380. 112-123 doi:10.1016/j.epsl.2013.08.028 | Journal (article/letter/editorial) | | BodĂ©lĂ© Depression (Chad) in the central Sahara/Sahel region of Northern Africa is the most important source...Accumulation of dust is assured by the aridity of the region and the prevalence of ïŹne material resulting from...observations at Barbados â ïŹrst demonstrated long-range transport of African-sourced dusts to the Caribbean...this dust is thought to originate from the BodĂ©lĂ© region and is transported over during the winter months...thickness varying from 3 to 20 m. Kaolinite and quartz are the main minerals, although gibbsite, hematite |  | | Journal (article/letter/editorial) | | rocks and ores. After a brief historical review the region was described in detail, without, however, introducing...Lyon Jones spoke of the biological adaptations of desert plants to their surroundings, mentioning first...tropical regions was noted; also the struggle of desert plants against inorganic nature. The effects of...and stem by coatir~gsof wax is always thick in desert plants, and the hairy coatings form a striking...of the Mediterranean flora. The fertilization of desert plants was described in detail, also the distribution |  | | Book (volume) | | Pleistocene Continental Deposits in Northern Fazzan and the Central Sirt Basin : ; j x LudĂ©k Domaci, Pavel...Eames The Upper CretaceousâTertiary Formations of Northern Libya. : a OF Mohamed Megerisi and V.D. Mamgain...Cretaceous (Maastrichtian) Foraminifera of North-central and Northwestern Libya : F ; Bahlul A. Eliagoubi...Planktonic Foraminifera from the Middle Eocene of the Northern Escarpment of Al Jabal al Akhdar, NE Libya : :...Discovery of a New Species of ae ge on Oligocene of Central Libya ZdenĂ©k V. Spinar 309 ae in the Contents |  | | Journal (article/letter/editorial) | | Gallium in Younger Granites of Northern Nigeria Geological Survey of Tanganyika, P.O. Ros 903, Dodoma...recorded by SHAW (1957, p. 174, Table 6) who quotes a range of gallium values from 18-50 ppm, mean 36 ppm, for...also found in riebeckitc and aegirine. Analyses of quartz-feldspar fractions confirm that the bulk of the...gallium is carried in feIdspar, assuming that. quartz contains less than 1 ppm Ga (BURTON et al., 1959...Yonnger Granites. for the (Al i_ Fe3f)/10Ga ratio range from 415 to 140. The lowest ratio is recorded in |  | | Journal (article/letter/editorial) | | chloritoid assemblages in Turkey, 159 Augite, 485 AUSTRALIA,lithiophorite, 383; YEW SOUTHWALES,Broken Hill...529; Walcha area, garnet websterites, 167; SOUTH AUSTRALIA,Arkaroola, pyrite sulphur jarosite assemblage...mine, mpororoite and anthoinite, 397; WESTERN AUSTRALIA, Norseman, low-Zn chalcophanite, 556; Walgidee...Celadonite, Lake District, 113 Chalcophanite, Western Australia, low-Zn content, 556 CHEN, T. T., see PAAR, W... A. G., see CLARK, A. M., 267, 537 Cowlesite, Northern Ireland, new data, 565 CRIDDLE, A. J., see PRYCE |  | Zhao, Wancang, Balsam, William, Williams, Earle, Long, Xiaoyong, Ji, Junfeng (2018) SrâNdâHf isotopic fingerprinting of transatlantic dust derived from North Africa. Earth and Planetary Science Letters, 486. 23-31 doi:10.1016/j.epsl.2018.01.004 | Journal (article/letter/editorial) | | fractions SrâNdâHf isotope a b s t r a c t Long-range transport of African dust plays an important role...constrain dust provenance and the pathways of long-range transported mineral dust. We investigated the clay-sized...samples along four transects bordering the Sahara Desert. The transects are from Mali, Niger/Benin/Togo...primarily the western Sahel and Sahara as well as the central Sahel. Summer emission dust is derived mainly from...dust not only from western areas, but also south central areas. Comparison of the SrâNdâHf isotopic ïŹngerprints |  | | Report (issue) | | Jab9.1 area ____________________________ _ The desert of Cyrenaica ____________________ _ Drainage and...Northeastern and northern Fez zan _______ _ Northern Tripolitania __________________ _ South-central Libya ____________________..._______________________ _ Economic considerations ____________ _ Northern Tripolitania iron-bearing rocks ______ _ ~anganese...crater__________________________________________ 14 8. The central cone at Waw an Nam\is_ _ __ ___ _________ ___ ____...Post-Tassilian Group and Nubian Sandstone in south-central Libya_______________ 32 24. Petrified wood in the |  | | Journal (issue) | | P. Smith Zircon from the Harts Range, Northern Territory, Australia Maxwell J Faulkner and lames E....to 5.10) can significantly increase it. The S.G. range determined is consistent with that reported in the...Winter 1989 ZIRCON FROM T H E HARTS RANGE, NORTHERN TERRITORY, AUSTRALIA By Maxwell Faulkner and Tames E...underdeveloped locality in the Harts Range o f central Australia is described. While exhibiting m a n...Rmge material occurs in a size, quality, and color range suitable for faceting. ABOUT THE AUTHORS Mr. Faulkner |  | | Journal (article/letter/editorial) | | west by 4 miles from north to south consists of a central area of Z-beds surrounded on the north, west and...and has an average width of about a mile. The northern portion is composed of S-beds, but a powerful...from the south against the S-beds forming the northern margin. The southern part of the hill is also...ROCKS BRISTOL COALFIE L D. II9 outcrop. The northern limit of the horse-shoe forms a continuation of...as is the succession of old quarries along th e northern limb of the horse-sho e from Upper Knole past |  | Jiang, Shijun, Bralower, Timothy J., Patzkowsky, Mark E., Kump, Lee R., Schueth, Jonathan D. (2010) Geographic controls on nannoplankton extinction across the Cretaceous/Palaeogene boundary. Nature Geoscience, 3 (4) 280-285 doi:10.1038/ngeo775 | Journal (article/letter/editorial) | | find that extinction rates were higher in the Northern Hemisphere oceans, and diversity remained low...impact concentrated ejected particulates into the Northern Hemisphere, blocking sunlight and suppressing...nannoplankton crisis in the Northern Hemisphere, and thereby slowed the recovery of the Northern Hemisphere marine...more information on sites. between the sites. Central Pacific Site 1210 shows a significant decrease...Pacific and Tethyan oceans (hereafter termed the Northern Hemisphere oceans) sustained the highest extinction |  | | Journal (article/letter/editorial) | | Geosciences, Monash University, Clayton Vic. 3800, Australia a r t i c l e i n f o Article history: Received...the atmospheric corrected Na and K concentrations range from ~ 1.1 to ~ 4.3, suggesting incongruent weathering...long-term average CO2 ïŹuxes from silicate weathering range from ~0.012Ă106 to 0.039Ă106 mol/km2/yr with the...due to low relief, and the arid climate in that region. Time series measurements show that exposure to...explain the lack of dissolved silica in rivers in northern Siberia during the warmer summer months. Jacobson |  | | Journal (article/letter/editorial) | | system followed by sub-boiling distillation in a quartz still. All acids used were of ultrapure quality...temperatures lower than 1000°C. At the temperature range between 1000 and 14OOâC, the âLG6Li ratio approaches...foraminiferal tests. These samples represent a wide range of lithium concentrations and S6Li in nature (more...dLi = -31.4 f 0.8 ?& B. Mid Atlantic f 0.01298 (Ghan and Edmond, (95% CL.) 1988) Ridge basalt (1680-4)...CL) 66Li = -4.1 f 0.9 %o 66Li = -4.7 f 0.8 %o (Ghan et al., 1992) Fe-rich silicates to avoid Fe*+ interference |  | | Report (Issue volume) | | The geology of South Australia Volume 2 The Phanerozoic Bulletin 54 BULL 054 (Vol 2) Geological Survey...Survey of South Australia Bulletin 54 The geology of South Australia Volume 2 The Phanerozoic Edited...for Mines and Energy © Government of South Australia 1995. This work is copyright. Apart from any use...written permission from the Government of South Australia available through the Department for Manufacturing...1995. The geology of South Australia. Vol. 2, The Phanerozoic. South Australia. Geological Survey. Bulletin |  | | Journal (article/letter/editorial) | | shop! Call for ap pointment. THURSTON'S, 385 Central St., Boylston, MA 01505; 508/869-2435. FOSSILS...Clayton St., Littleton, CO 80121. WYOMING GOLD in quartz specimens. Gold vis ible to the naked eye, $25...Epidote. Garnet (several varieties). Kunzite. Af ghan lapis (top quality). Articles made of green onyx...GiftsâSouvenirs World-Famous HERKIMER DIAMONDS Quartz Crystals Herkimer Diamond Book $9.95 (includes...Illinois; tourmaline and amethyst from Brazil; quartz and calcite from Arkansas; material from Elmwood |  | | Journal (article/letter/editorial) | | Nonmetallic impurities identified are muscovite, quartz,garnet,zircon,andamphibole. X-ray diffraction data...principal mechanisms:replace- ment of rocks rich in quartz, muscovite,garnet, and perhapsother minerals; filling...theNsutabatteryorearecryptomelane, pyrolusite, lithiophorite,quartz,and clayminerals. Exceptfor Dunn,theinvestigators...CAMERON cluded in the phyllite are beds of gondite (quartz-spessartiterock), formed by metamorphismof manganiferoussediments...specimensstudiedis due to variations in the ratio of quartz and silicatesto manganeseoxides. Concretionarylayering |  | | Journal (article/letter/editorial) | | Germany for three years. The turf would be burnt at central stations of 10.000 horse power capacity, conÂ ïżœllming...St. Johns. The physical characteristics of the region lend t hemsel ves admirably to the success of this...chilla heads are made COl1!:lists of china clay, quartz saud, feldspath and k aolin. These materials are...Province of Ontario has granted a bonus to the Algoma Central Railway of 7,400 acres of land to the mile of road...of April 25, 1900, Vice and Acting Consul Mona ghan, of Chemnitz, says : German papers note that the |  | | Journal (article/letter/editorial) | | Germany for three years. The turf would be burnt at central stations of 10.000 horse power capacity, conÂ ïżœllming...St. Johns. The physical characteristics of the region lend t hemsel ves admirably to the success of this...chilla heads are made COl1!:lists of china clay, quartz saud, feldspath and k aolin. These materials are...Province of Ontario has granted a bonus to the Algoma Central Railway of 7,400 acres of land to the mile of road...of April 25, 1900, Vice and Acting Consul Mona ghan, of Chemnitz, says : German papers note that the |  | | Journal (article/letter/editorial) | | ages of Proterozoic Lesser Himalayan rocks in central Nepal Aaron J. Martin a,â , Katherine D. Burgy...Carbon isotopes a b s t r a c t In the Himalaya of central Nepal, uncertainty in the absolute depositional...stratigraphic base of the Lesser Himalayan series in central Nepal, 441 new U/Pb isotopic ages of detrital zircons...Fagfog Formation is present in the Kali Gandaki region but apparently pinches out to the east because...exposures of the Malekhu Formation reveal a narrow range of âŠ13 C values between â1.7 and +0.2â° (VPDB) and |  | | Journal (issue) | | continental scales. Workshop participants included a wide range of scientists at different career stages, including...activities. The Norweand European Centre for M  edium-âRange S 8 // Eos 1 July 2016 Creating Career Paths...convergence of the African and Eurasian plates in the central Mediterranean (Figure 1). This compression creates...event, in 1978, was M6.2) that extends from the central sector of the Aeolian Archipelago (islands of Vulcano...in the southern Tyrrhenian Sea toward the Etna region to the south [Billi et al., 2006]. This tectonic |  | | Report (issue) | | other areas of the world. In spite of the wide range in trace-element contents, no samples contained...significant concentrations of a single element. Samples range from peralkaline to strongly peraluminous; most...metavolcanic, plutonic, and metasedimentary rocks that range in age from 1,100 to 660 Ma and in composition from...that this event did not extend all the way to the northern part of the exposed shield (Stuckless, Hedge,...data is log-normal (01 nearly so), and because the range for the transformed trace element is more similar |
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