Pesquisa | Portal de Pesquisa da BVS

1.

Bulk and grain-scale minor sulfur isotope data reveal complexities in the dynamics of Earth's oxygenation.

Izon, Gareth; Luo, Genming; Uveges, Benjamin T; Beukes, Nicolas; Kitajima, Kouki; Ono, Shuhei; Valley, John W; Ma, Xingyu; Summons, Roger E.

Proc Natl Acad Sci U S A ; 119(13): e2025606119, 2022 03 29.

Artigo em Inglês | MEDLINE | ID: mdl-35312361

2.

Garnet secondary ion mass spectrometry oxygen isotopes reveal crucial roles of pulsed magmatic fluid and its mixing with meteoric water in lode gold genesis.

Fan, Gao-Hua; Li, Jian-Wei; Valley, John W; Scicchitano, Maria Rosa; Brown, Philip E; Yang, Jin-Hui; Robinson, Paul T; Deng, Xiao-Dong; Wu, Ya-Fei; Li, Zhan-Ke; Gao, Wen-Sheng; Li, Si-Yuan; Zhao, Shao-Rui.

Proc Natl Acad Sci U S A ; 119(19): e2116380119, 2022 05 10.

Artigo em Inglês | MEDLINE | ID: mdl-35500124

3.

Comparison of Î´¹³ C analyses of individual foraminifer (Orbulina universa) shells by secondary ion mass spectrometry and gas source mass spectrometry.

Wycech, Jody B; Kelly, Daniel Clay; Kozdon, Reinhard; Ishida, Akizumi; Kitajima, Kouki; Spero, Howard J; Valley, John W.

Rapid Commun Mass Spectrom ; 38(2): e9658, 2024 Jan 30.

Artigo em Inglês | MEDLINE | ID: mdl-38124172

4.

SIMS analyses of the oldest known assemblage of microfossils document their taxon-correlated carbon isotope compositions.

Schopf, J William; Kitajima, Kouki; Spicuzza, Michael J; Kudryavtsev, Anatoliy B; Valley, John W.

Proc Natl Acad Sci U S A ; 115(1): 53-58, 2018 01 02.

Artigo em Inglês | MEDLINE | ID: mdl-29255053

5.

Pedothem carbonates reveal anomalous North American atmospheric circulation 70,000-55,000 years ago.

Oerter, Erik J; Sharp, Warren D; Oster, Jessica L; Ebeling, Angela; Valley, John W; Kozdon, Reinhard; Orland, Ian J; Hellstrom, John; Woodhead, Jon D; Hergt, Janet M; Chadwick, Oliver A; Amundson, Ronald.

Proc Natl Acad Sci U S A ; 113(4): 919-24, 2016 Jan 26.

Artigo em Inglês | MEDLINE | ID: mdl-26755592

6.

Evaluation of micromilling/conventional isotope ratio mass spectrometry and secondary ion mass spectrometry of Î´¹⁸ O values in fish otoliths for sclerochronology.

Helser, Thomas E; Kastelle, Craig R; McKay, Jennifer L; Orland, Ian J; Kozdon, Reinhard; Valley, John W.

Rapid Commun Mass Spectrom ; 32(20): 1781-1790, 2018 Oct 30.

Artigo em Inglês | MEDLINE | ID: mdl-29993156

7.

GZ7 and GZ8 - Two Zircon Reference Materials for SIMS U-Pb Geochronology.

Nasdala, Lutz; Corfu, Fernando; Schoene, Blair; Tapster, Simon R; Wall, Corey J; Schmitz, Mark D; Ovtcharova, Maria; Schaltegger, Urs; Kennedy, Allen K; Kronz, Andreas; Reiners, Peter W; Yang, Yue-Heng; Wu, Fu-Yuan; Gain, Sarah E M; Griffin, William L; Szymanowski, Dawid; Chanmuang N, Chutimun; Ende, Martin; Valley, John W; Spicuzza, Michael J; Wanthanachaisaeng, Bhuwadol; Giester, Gerald.

Geostand Geoanal Res ; 42(4): 431-457, 2018 Dec.

Artigo em Inglês | MEDLINE | ID: mdl-30686958

8.

Sulfur-cycling fossil bacteria from the 1.8-Ga Duck Creek Formation provide promising evidence of evolution's null hypothesis.

Schopf, J William; Kudryavtsev, Anatoliy B; Walter, Malcolm R; Van Kranendonk, Martin J; Williford, Kenneth H; Kozdon, Reinhard; Valley, John W; Gallardo, Victor A; Espinoza, Carola; Flannery, David T.

Proc Natl Acad Sci U S A ; 112(7): 2087-92, 2015 Feb 17.

Artigo em Inglês | MEDLINE | ID: mdl-25646436

9.

Intermineral oxygen three-isotope systematics of silicate minerals in equilibrated ordinary chondrites.

McDougal, David; Nakashima, Daisuke; Tenner, Travis J; Kita, Noriko T; Valley, John W; Noguchi, Takaaki.

Meteorit Planet Sci ; 52(11): 2322-2342, 2017 Nov.

Artigo em Inglês | MEDLINE | ID: mdl-29551884

10.

Otolith oxygen isotopes measured by high-precision secondary ion mass spectrometry reflect life history of a yellowfin sole (Limanda aspera).

Matta, Mary Elizabeth; Orland, Ian J; Ushikubo, Takayuki; Helser, Thomas E; Black, Bryan A; Valley, John W.

Rapid Commun Mass Spectrom ; 27(6): 691-9, 2013 Mar 30.

Artigo em Inglês | MEDLINE | ID: mdl-23418148

11.

Reply to Dvorák et al.: Apparent evolutionary stasis of ancient subseafloor sulfur cycling biocoenoses.

Schopf, J William; Kudryavtsev, Anatoliy B; Walter, Malcolm R; Van Kranendonk, Martin J; Williford, Kenneth H; Kozdon, Reinhard; Valley, John W; Gallardo, Victor A; Espinoza, Carola; Flannery, David T.

Proc Natl Acad Sci U S A ; 112(20): E2560, 2015 May 19.

Artigo em Inglês | MEDLINE | ID: mdl-25902537

12.

Mollusk shell nacre ultrastructure correlates with environmental temperature and pressure.

Olson, Ian C; Kozdon, Reinhard; Valley, John W; Gilbert, Pupa U P A.

J Am Chem Soc ; 134(17): 7351-8, 2012 May 02.

Artigo em Inglês | MEDLINE | ID: mdl-22313180

13.

Searching for the Great Oxidation Event in North America: A Reappraisal of the Huronian Supergroup by SIMS Sulfur Four-Isotope Analysis.

Cui, Huan; Kitajima, Kouki; Spicuzza, Michael J; Fournelle, John H; Ishida, Akizumi; Brown, Philip E; Valley, John W.

Astrobiology ; 18(5): 519-538, 2018 05.

Artigo em Inglês | MEDLINE | ID: mdl-29791234

14.

A Study of the Microbial Spatial Heterogeneity of Bahamian Thrombolites Using Molecular, Biochemical, and Stable Isotope Analyses.

Louyakis, Artemis S; Mobberley, Jennifer M; Vitek, Brooke E; Visscher, Pieter T; Hagan, Paul D; Reid, R Pamela; Kozdon, Reinhard; Orland, Ian J; Valley, John W; Planavsky, Noah J; Casaburi, Giorgio; Foster, Jamie S.

Astrobiology ; 17(5): 413-430, 2017 May.

Artigo em Inglês | MEDLINE | ID: mdl-28520472

15.

Oxygen Isotope Variability within Nautilus Shell Growth Bands.

Linzmeier, Benjamin J; Kozdon, Reinhard; Peters, Shanan E; Valley, John W.

PLoS One ; 11(4): e0153890, 2016.

Artigo em Inglês | MEDLINE | ID: mdl-27100183

16.

Compensation of charging in X-PEEM: a successful test on mineral inclusions in 4.4 Ga old zircon.

De Stasio, Gelsomina; Frazer, Bradley H; Gilbert, Benjamin; Richter, Katherine L; Valley, John W.

Ultramicroscopy ; 98(1): 57-62, 2003 Dec.

Artigo em Inglês | MEDLINE | ID: mdl-14609643

17.

Of travertine and time: otolith chemistry and microstructure detect provenance and demography of endangered humpback chub in Grand Canyon, USA.

Limburg, Karin E; Hayden, Todd A; Pine, William E; Yard, Michael D; Kozdon, Reinhard; Valley, John W.

PLoS One ; 8(12): e84235, 2013.

Artigo em Inglês | MEDLINE | ID: mdl-24358346

18.

A cool early Earth?

Valley, John W.

Sci Am ; 293(4): 58-65, 2005 Oct.

Artigo em Inglês | MEDLINE | ID: mdl-16196254

19.

A novel symbiosis between chemoautotrophic bacteria and a freshwater cave amphipod.

Dattagupta, Sharmishtha; Schaperdoth, Irene; Montanari, Alessandro; Mariani, Sandro; Kita, Noriko; Valley, John W; Macalady, Jennifer L.

ISME J ; 3(8): 935-43, 2009 Aug.

Artigo em Inglês | MEDLINE | ID: mdl-19360027

20.

Chondrulelike objects in short-period comet 81P/Wild 2.

Nakamura, Tomoki; Noguchi, Takaaki; Tsuchiyama, Akira; Ushikubo, Takayuki; Kita, Noriko T; Valley, John W; Zolensky, Michael E; Kakazu, Yuki; Sakamoto, Kanako; Mashio, Etsuko; Uesugi, Kentaro; Nakano, Tsukasa.

Science ; 321(5896): 1664-7, 2008 Sep 19.

Artigo em Inglês | MEDLINE | ID: mdl-18801994

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