 | | Report (issue) | | University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln Conservation and Survey...Gemstones of Nebraska: A Handbook for Students and Collectors Roger K. Pabian University of Nebraska - Lincoln...Lincoln, rpabian1@unl.edu Allan Cook University of Nebraska - Lincoln Follow this and additional works at:...K. and Cook, Allan, "Minerals and Gemstones of Nebraska: A Handbook for Students and Collectors" (1976)...Resources, School of at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion |  | | Journal (article/letter/editorial) | | 329–345 www.elsevier.com/locate/gca Intergranular aragonite cement as evidence for widespread cryogenic brine...Bessey Hall, University of Nebraska-Lincoln, Lincoln, NE 68588-0340, USA Received 31 July 2019; accepted...petrography and isotope geochemistry of intergranular aragonite cement phases that occur in subsurface Pliocene-Quaternary...11) and in offshore McMurdo Sound (core AND-1B). Aragonite cement in the coastal Taylor Valley sections is...edifices and the expanded West Antarctic Ice Sheet. Aragonite cement phases serve as excellent proxies for tracing |  | Druffel-Rodriguez, Kevin C., Vetter, Desiree, Griffin, Sheila, Druffel, Ellen R.M., Dunbar, Robert B., Mucciarone, David A., Ziolkowski, Lori A., Sanchez-Cabeza, Joan-Albert (2012) Radiocarbon and stable isotopes in Palmyra corals during the past century. Geochimica et Cosmochimica Acta, 82. 154-162 doi:10.1016/j.gca.2010.11.028 | Journal (article/letter/editorial) | | Sheila Griffin a, Ellen R.M. Druffel a,⇑, Robert B. Dunbar b, David A. Mucciarone b, Lori A. Ziolkowski a...92697-3100, USA b Environmental Earth System Science, Stanford University, Stanford, CA 94305, USA c Institut...Marshall Islands bomb tests in 1954. Secondary aragonite precipitation was identified in a portion of one...Battalion, Camp Pendleton Marine Corps Base, CA 92055, USA. 2 Present address: Origins Institute, McMaster University...organisms such as corals incorporate DIC into their aragonite skeletons and record the D14C value of the seawater |  | | Report (issue) | | University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln Conservation and Survey...the Invertebrate Fossils of Nebraska Roger K. Pabian University of Nebraska - Lincoln, rpabian1@unl.edu...Rock: A Handbook of the Invertebrate Fossils of Nebraska" (1970). Conservation and Survey Division. 1....Resources, School of at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion...DigitalCommons@University of Nebraska - Lincoln. A Handbook of the Invertebrate Fossils of Nebraska /} / ~>,\\1 |  | | Journal (article/letter/editorial) | | Copyright 0 1995 Elsevier Science Ltd Printed in the USA. All rights reserved 0016.7037/95 $9.50 + .OO 0016-7037(...ROBERTB. DUNBAR~ ‘School of Oceanography, University of Washington, Seattle, WA 98195, USA *Departmentof...*Departmentof Geology, Rice University, Houston, TX 7725 1, USA (Received August 22, 1994; accepted in revised form...conformation of calcite than the orthorhombic form of aragonite. This first order observation hints at uranium...calcite (e.g., foraminifera, speleothems) or aragonite (e.g., molluscs, reef corals), remains poorly |  | Meibom, Anders, Cuif, Jean-Pierre, Houlbreque, Fanny, Mostefaoui, Smail, Dauphin, Yannicke, Meibom, Karin L., Dunbar, Robert (2008) Compositional variations at ultra-structure length scales in coral skeleton. Geochimica et Cosmochimica Acta, 72 (6) 1555-1569 doi:10.1016/j.gca.2008.01.009 | Journal (article/letter/editorial) | | Yannicke Dauphin b, Karin L. Meibom d, Robert Dunbar c a Muséum National d’Histoire Naturelle, Laboratoire...Sciences, Stanford University, Stanford, CA 94305, USA d INSERM U570, Faculté de Médecine Necker-Enfants...centers of calcification (COC) and fibrous aragonite. In fibrous aragonite, the trace element variations are typically...deep-sea and reef-building corals and is neither aragonite nor calcite. Ó 2008 Elsevier Ltd. All rights reserved...indicated by the line in (C). Systems of fibrous aragonite fans protrude symmetrically on both sides of the |  | Juillet-Leclerc, A., Reynaud, S., Rollion-Bard, C., Cuif, J.P., Dauphin, Y., Blamart, D., Ferrier-Pagès, C., Allemand, D. (2009) Oxygen isotopic signature of the skeletal microstructures in cultured corals: Identification of vital effects. Geochimica et Cosmochimica Acta, 73 (18) 5320-5332 doi:10.1016/j.gca.2009.05.068 | Journal (article/letter/editorial) | | conditions, we infer that the scattered d18O aragonite fibers indicate precipitation through kinetic precipitation...cultured corals: Identification of vital effects 1993; Dunbar et al., 1994; Wellington et al., 1996). However...compared with the equilibrium values of inorganic aragonite formed in the culture conditions. A temperature...taking into account the enrichment estimated for aragonite by Tarutani et al. (1969) and we obtained d18OV-PDB...and Ku (1986) equations determined for organic aragonite providing oxygen isotopic values of 1.12 and |  | Lazar, Boaz, Enmar, Rivka, Schossberger, Michelle, Bar-Matthews, Miriam, Halicz, Ludwik, Stein, Mordechai (2004) Diagenetic effects on the distribution of uranium in live and Holocene corals from the Gulf of Aqaba. Geochimica et Cosmochimica Acta, 68 (22) 4583-4593 doi:10.1016/j.gca.2004.03.029 | Journal (article/letter/editorial) | | 2004 Copyright © 2004 Elsevier Ltd Printed in the USA. All rights reserved 0016-7037/04 $30.00 ⫹ .00 Pergamon...diagenetic alteration (dissolution, secondary aragonite precipitation and pore filling) on the distribution...addition, we sampled Holocene corals and beachrock aragonite cements from a pit opened in a reef buried under...isotopic composition of U in the coral skeletal aragonite, aragonite cements, coral porewater and open NRR and...Aqaba waters. Uranium concentration in secondary aragonite filling the skeletal pores is significantly higher |  | | Journal (article/letter/editorial) | | reconstruction Justine B. Kimball a,⁎, Robert B. Dunbar a, Thomas P. Guilderson b,1 a b Stanford University...Environmental Earth System Science, Stanford, CA 94025, USA Center for Accelerator Mass Spectrometry, Lawrence...Livermore National Laboratory, Livermore, CA 94550, USA a r t i c l e i n f o Article history: Received...jkimball@stanford.edu (J.B. Kimball), dunbar@stanford.edu (R.B. Dunbar), tguilderson@llnl.gov, tguilder@ucsc...University of California, Santa Cruz, CA 95064, USA. http://dx.doi.org/10.1016/j.chemgeo.2014.05.008 |  | Gabitov, R.I., Gaetani, G.A., Watson, E.B., Cohen, A.L., Ehrlich, H.L. (2008) Experimental determination of growth rate effect on U6+ and Mg2+ partitioning between aragonite and fluid at elevated U6+ concentration. Geochimica et Cosmochimica Acta, 72 (16) 4058-4068 doi:10.1016/j.gca.2008.05.047 | Journal (article/letter/editorial) | | rate effect on U6+ and Mg2+ partitioning between aragonite and fluid at elevated U6+ concentration R.I. Gabitov...Rensselaer Polytechnic Institute, Troy, NY 12180, USA Department of Geology and Geophysics, Woods Hole...Oceanographic Institution, Woods Hole, MA 02543, USA Received 30 August 2007; accepted in revised form...in which the partitioning of U and Mg between aragonite and an aqueous solution were determined as a function...of crystal growth rate. Crystals, identified as aragonite by X-ray diffractometry and micro-Raman spectroscopy |  | | Journal (article/letter/editorial) | | Copyright © 1995 Elsevier Science Ltd Printed in the USA. All rights reserved 0016-7037/95 $9.50 + .00 Pergamon...02543-1543, USA 2School of Oceanography, WB-10, University of Washington, Seattle, WA 98915, USA (Received...not prove, that REEs are incorporated in the aragonite lattice of these corals. The shale-normalized...ocean basins, and upper ocean mixing (Shen, 1993; Dunbar and Cole, 1993; Linsley et al., 1994; McCulloch...dark brown structures within a matrix of white aragonite. Upon the cleaning and final dissolution of this |  | | Journal (article/letter/editorial) | | Copyright 0 19% Elsevier Science Ltd Printed in the USA. All rights reserved C016-7037196 $15.00 + .OO Pergamon...Oceanographic Institution, Woods Hole, MA 02543, USA (Received December 22, 1995; accepted in revised...(Quinn et al., 1993; Druffel and Griffin, 1993; Dunbar et al., 1994; Linsley et al., 1994; Cole et al...a paleothermometer (Min et al., 1995; Shen and Dunbar, 1995). 3075 S. R. Hart and A. L. Cohen 3076...times that of Sr/Ca (Min et al., 1995; Shen and Dunbar, 1995). Magnesium in ostracodes has been studied |  | Rong Min, G, Lawrence Edwards, R, Taylor, Frederick W, Recy, Jacques, Gallup, Christina D, Warren Beck, J (1995) Annual cycles of in coral skeletons and thermometry. Geochimica et Cosmochimica Acta, 59 (10) 2025-2042 doi:10.1016/0016-7037(95)00124-7 | Journal (article/letter/editorial) | | Copyright0 1995 Else&r ScienceLtd printedin the USA. All rightsreserved 0016.7037/95 $9.50 + .OO Pergamon...Minneapolis, MN 55455, USA ‘Institute for Geophysics, University of Texas, Austin, TX 78759, USA de Geodynamique...238U/‘“‘Ca and -C1%0 (20) for 88Sr/40Ca. Coralline aragonite subsamples weighed -2 mg, enabling subtemporal...to be a general feature of primary coralline aragonite, the preservation of such features will be important...to that of inorganically precipitated marine aragonite (Tatsumoto and Goldberg, 1959), but orders of |  | Armid, Alrum, Asami, Ryuji, Fahmiati, Tanri, Sheikh, Mohammed Ali, Fujimura, Hiroyuki, Higuchi, Tomihiko, Taira, Eiko, Shinjo, Ryuichi, Oomori, Tamotsu (2011) Seawater temperature proxies based on DSr, DMg, and DU from culture experiments using the branching coral Porites cylindrica. Geochimica et Cosmochimica Acta, 75 (15) 4273-4285 doi:10.1016/j.gca.2011.05.010 | Journal (article/letter/editorial) | | the U/Ca ratio (e.g., Min et al., 1995; Shen and Dunbar, 1995; Sinclair et al., 1998; Fallon et al., 1999...using a thermometer (IR100, EXTECH Instruments, USA). The temperatures from the three tanks were 22.0...remove organic material, approximately 10 mg of aragonite powder from each subsample was reacted with 2...“infilling” skeleton (secondarily precipitated aragonite) and “framework” skeleton. By using microscale...between the concentration of Sr in the skeletal aragonite of corals and seawater temperature. Since the |  | Anagnostou, Eleni, Sherrell, Robert M., Gagnon, Alex, LaVigne, Michele, Field, M. Paul, McDonough, William F. (2011) Seawater nutrient and carbonate ion concentrations recorded as P/Ca, Ba/Ca, and U/Ca in the deep-sea coral Desmophyllum dianthus. Geochimica et Cosmochimica Acta, 75 (9) 2529-2543 doi:10.1016/j.gca.2011.02.019 | Journal (article/letter/editorial) | | 08901, USA Department of Earth and Planetary Sciences, Rutgers University, Piscataway, NJ 08854, USA c Lawrence...94720, USA d University of California Davis, Bodega Marine Laboratory, Bodega Bay, CA 94923, USA e Department...University of Maryland, College Park, MD 20742, USA Received 23 February 2010; accepted in revised form...University, 71 Dudley Road, New Brunswick, NJ 08901, USA. Tel.: +1 732 932 6555x252. E-mail address: eleni@marine...and other variables (Min et al., 1995; Shen and Dunbar, 1995). The limited temperature range of deep coral |  | | Journal (article/letter/editorial) | | Copyright © 1998 Elsevier Science Ltd Printed in the USA. All rights reserved 0016-7037/98 $19.00 1 .00 Pergamon...fine-scale compositional heterogeneity in coralline aragonite. Schroeder et al. (1970) found indications of...is enriched in calcite relative to aragonite, and Shen and Dunbar (1995) found that traces of inorganic...contained up to 3.5 times more U than the skeletal aragonite. Amiel et al. (1973a) propose the existence of...strontianite domains in Montastrea and Acropora aragonite. The skeletal geometry is likely to be another |  | | Journal (article/letter/editorial) | | California, Davis, One Shields Avenue, Davis, CA 95616, USA Bodega Marine Laboratory, University of California...Davis, 2099 Westside Road, Bodega Bay, CA 94923, USA c Center for Accelerator Mass Spectrometry, Lawrence... CA 94550, USA d Institute of Marine Sciences, University of California, Santa Cruz, USA b a r t i c...Davis, 2099 Westside Rd., Bodega Bay, CA 94923, USA. Tel.: + 1 707 875 1961; fax: + 1 707 875 2009. E-mail...Scientific) and Milli-Q (18.2 MΩ-cm, Millipore, MA, USA) water unless otherwise noted. Coral powders (~ 1 |  | | Journal (article/letter/editorial) | | Copyright 0 1997Elsevier Science Ltd Printed in the USA. All rights reserved 0016.7037/97$17.00 + .OO Pergamon...Old Dominion University, Norfolk, Virginia 23529, USA *Marine Fish Division, Bedford Institute of Oceanography...Science, University of Miami, Miami, Florida 33 149, USA (Received November 21, 1996; accepted in revised...dynamics of isotope fractionation in otolith aragonite. In particular, the potential for isotopic disequilibria...activity (Spero and Williams, 1988; Wellington and Dunbar, 1995). Oxygen isotopes from invertebrate skeletons |  | | Journal (article/letter/editorial) | | Copyright © 1996 Elsevier Science Ltd Printed in the USA. All rights reserved 0016-7037/96 $15.00 + .00 Pergamon...Atmospheric Science, University of Miami, Miami, FL 33149, USA 2Division of Biology and Living Resources, Rosenstiel...33149, USA 3Nova Southeastern Institute of Oceanography, 8000 N. Ocean Drive, Dania, FL 33004, USA (Received...variables (Carriquiry et al., 1988; Cole et al., 1993; Dunbar and Wellington, 1995, and others). In such studies...confirm the presence of annual temperature cycles (Dunbar and Wellington 1981; Klein et al., 1992). However |  | | Journal (article/letter/editorial) | | Compositional and morphological features of aragonite precipitated experimentally from seawater and...Oceanographic Institution, Woods Hole, MA 02543, USA b Dept. Earth and Environmental Sciences, Rensselaer...Rensselaer Polytechnic Institute, Troy, NY 12180, USA c Dept. Physics and Astronomy, The University of Western...precipitated experimentally from seawater and the aragonite accreted by scleractinian corals were characterized...California Institute of Technology, Pasadena, CA 91125, USA. 0016-7037/$ - see front matter Ó 2009 Elsevier Ltd |  | Grottoli, Andréa G., Rodrigues, Lisa J., Matthews, Kathryn A., Palardy, James E., Gibb, Olivia T. (2005) Pre-treatment effects on coral skeletal δ13C and δ18O. Chemical Geology, 221 (3) 225-242 doi:10.1016/j.chemgeo.2005.05.004 | Journal (article/letter/editorial) | | Elsevier B.V. All rights reserved. Keywords: Coral; Aragonite; Pre-treatment; d 13C; d 18O; Method 1. Introduction...isotopic shift in coral skeletal d 18O (e.g.: Dunbar and Wellington, 1981; Gaffey et al., 1991; Land...Griffin, 1993, 1995, 1999; Druffel et al., 2001; Dunbar et al., 1994; Epstein et al., 1953; Goreau, 1977;...1996a,b, 1998; Wellington and Dunbar, 1995 Dunbar and Wellington, 1981; Dunbar et al., 1990; McConnaughey...oxygen isotopic exchange between H2O2 and coral aragonite. Therefore, dissolution of skeletal material is |  | Brahmi, Chloe, Kopp, Christophe, Domart-Coulon, Isabelle, Stolarski, Jarosław, Meibom, Anders (2012) Skeletal growth dynamics linked to trace-element composition in the scleractinian coral Pocillopora damicornis. Geochimica et Cosmochimica Acta, 99. 146-158 doi:10.1016/j.gca.2012.09.031 | Journal (article/letter/editorial) | | Kewalo Marine Laboratory (University of Hawaii, USA) for 8 weeks. Experiments were conducted under ambient...of 97%, Oak Ridge National Laboratory, Tennessee, USA) in 1 L filtered (0.2 lm) seawater. For further details...upon which a Thickening Deposits (TD) of fibrous aragonite can form. This TD is structurally identical to...146–158 compositional evolution of the fluid, and aragonite formed at different stages will exhibit a negative...negative correlation between Sr/Ca and Mg/Ca in aragonite. Fig. 5 shows the same data as in Fig. 4, but |  | Böhm, Florian, Gussone, Nikolaus, Eisenhauer, Anton, Dullo, Wolf-Christian, Reynaud, Stéphanie, Paytan, Adina (2006) Calcium isotope fractionation in modern scleractinian corals. Geochimica et Cosmochimica Acta, 70 (17) 4452-4462 doi:10.1016/j.gca.2006.06.1546 | Journal (article/letter/editorial) | | Environmental Sciences, Stanford University, Stanford, CA, USA b d Received 2 December 2005; accepted in revised...similar to inorganic aragonite precipitates. However, d44/40Ca of the coral aragonite is offset from inorganic...inorganic and sclerosponge aragonite by about +0.5&. This offset can neither be explained by the very fast...glass slides where they form a sheet of skeletal aragonite attached to the slide. After two months the newly...225 0.8 200 0.7 175 0.6 150 0.5 125 0.4 aragonite 100 0.3 75 0.2 Galápagos Coral 50 Red Sea |  | Montagna, Paolo, McCulloch, Malcolm, Douville, Eric, López Correa, Matthias, Trotter, Julie, Rodolfo-Metalpa, Riccardo, Dissard, Delphine, Ferrier-Pagès, Christine, Frank, Norbert, Freiwald, André, Goldstein, Steve, Mazzoli, Claudio, Reynaud, Stephanie, Rüggeberg, Andres, Russo, Simone, Taviani, Marco (2014) Li/Mg systematics in scleractinian corals: Calibration of the thermometer. Geochimica et Cosmochimica Acta, 132. 288-310 doi:10.1016/j.gca.2014.02.005 | Journal (article/letter/editorial) | | Columbia University, 61 Route 9W, Palisades, NY 10964, USA k Dipartimento di Geoscienze, Università degli Studi...microstructure-related co-variations between the fibrous aragonite and centres of calcification, a characteristic...mechanisms, specifically the mass fraction of aragonite precipitated during calcification, which is shown...et al., 1992; Guilderson et al., 1994; Shen and Dunbar, 1995; Mitsuguchi et al., 1996; McCulloch et al...thus different from that expected for inorganic aragonite precipitation (Smith et al., 2000). Accordingly |  | | Journal (article/letter/editorial) | | Copyright © 2001 Elsevier Science Ltd Printed in the USA. All rights reserved 0016-7037/01 $20.00 ⫹ .00 Pergamon...Strontium heterogeneity and speciation in coral aragonite: Implications for the strontium paleothermometer...60637, USA 4 Consortium for Advanced Radiation Sources, University of Chicago, Chicago, IL 60637, USA 2...inferred previously from the Sr/Ca ratios of coral aragonite. However, microanalytical studies have indicated...skeletal phases, as Sr substituted for Ca in aragonite and as separate SrCO3 (strontianite) domains. |
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