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Items: 1 to 50 of 57

1.

Clay mineral diversity and abundance in sedimentary rocks of Gale crater, Mars.

Bristow TF, Rampe EB, Achilles CN, Blake DF, Chipera SJ, Craig P, Crisp JA, Des Marais DJ, Downs RT, Gellert R, Grotzinger JP, Gupta S, Hazen RM, Horgan B, Hogancamp JV, Mangold N, Mahaffy PR, McAdam AC, Ming DW, Morookian JM, Morris RV, Morrison SM, Treiman AH, Vaniman DT, Vasavada AR, Yen AS.

Sci Adv. 2018 Jun 6;4(6):eaar3330. doi: 10.1126/sciadv.aar3330. eCollection 2018 Jun.

2.

Chemistry, mineralogy, and grain properties at Namib and High dunes, Bagnold dune field, Gale crater, Mars: A synthesis of Curiosity rover observations.

Ehlmann BL, Edgett KS, Sutter B, Achilles CN, Litvak ML, Lapotre MGA, Sullivan R, Fraeman AA, Arvidson RE, Blake DF, Bridges NT, Conrad PG, Cousin A, Downs RT, Gabriel TSJ, Gellert R, Hamilton VE, Hardgrove C, Johnson JR, Kuhn S, Mahaffy PR, Maurice S, McHenry M, Meslin PY, Ming DW, Minitti ME, Morookian JM, Morris RV, O'Connell-Cooper CD, Pinet PC, Rowland SK, Schröder S, Siebach KL, Stein NT, Thompson LM, Vaniman DT, Vasavada AR, Wellington DF, Wiens RC, Yen AS.

J Geophys Res Planets. 2017 Dec;122(12):2510-2543. doi: 10.1002/2017JE005267. Epub 2017 Dec 7.

3.

Redetermination of metarossite, CaV5+2O6·2H2O.

Kobsch A, Downs RT, Domanik KJ.

Acta Crystallogr E Crystallogr Commun. 2016 Aug 9;72(Pt 9):1280-1284. eCollection 2016 Sep 1.

4.

Redetermination of ruizite, Ca2Mn(3+) 2[Si4O11(OH)2](OH)2·2H2O.

Fendrich KV, Downs RT, Origlieri MJ.

Acta Crystallogr E Crystallogr Commun. 2016 Jun 14;72(Pt 7):959-63. doi: 10.1107/S2056989016009129. eCollection 2016 Jul 1.

5.

Silicic volcanism on Mars evidenced by tridymite in high-SiO2 sedimentary rock at Gale crater.

Morris RV, Vaniman DT, Blake DF, Gellert R, Chipera SJ, Rampe EB, Ming DW, Morrison SM, Downs RT, Treiman AH, Yen AS, Grotzinger JP, Achilles CN, Bristow TF, Crisp JA, Des Marais DJ, Farmer JD, Fendrich KV, Frydenvang J, Graff TG, Morookian JM, Stolper EM, Schwenzer SP.

Proc Natl Acad Sci U S A. 2016 Jun 28;113(26):7071-6. doi: 10.1073/pnas.1607098113. Epub 2016 Jun 13.

6.

Mineralogy, provenance, and diagenesis of a potassic basaltic sandstone on Mars: CheMin X-ray diffraction of the Windjana sample (Kimberley area, Gale Crater).

Treiman AH, Bish DL, Vaniman DT, Chipera SJ, Blake DF, Ming DW, Morris RV, Bristow TF, Morrison SM, Baker MB, Rampe EB, Downs RT, Filiberto J, Glazner AF, Gellert R, Thompson LM, Schmidt ME, Le Deit L, Wiens RC, McAdam AC, Achilles CN, Edgett KS, Farmer JD, Fendrich KV, Grotzinger JP, Gupta S, Morookian JM, Newcombe ME, Rice MS, Spray JG, Stolper EM, Sumner DY, Vasavada AR, Yen AS.

J Geophys Res Planets. 2016 Jan;121(1):75-106. Epub 2016 Jan 29.

7.

Redetermination of brackebuschite, Pb2Mn(3+)(VO4)2(OH).

Lafuente B, Downs RT.

Acta Crystallogr E Crystallogr Commun. 2016 Feb 6;72(Pt 3):293-6. doi: 10.1107/S2056989016001948. eCollection 2016 Mar 1.

8.

Crystal structure of tetra-wickmanite, Mn(2+)Sn(4+)(OH)6.

Lafuente B, Yang H, Downs RT.

Acta Crystallogr E Crystallogr Commun. 2015 Jan 31;71(Pt 2):234-7. doi: 10.1107/S2056989015001632. eCollection 2015 Feb 1.

9.

The origin and implications of clay minerals from Yellowknife Bay, Gale crater, Mars.

Bristow TF, Bish DL, Vaniman DT, Morris RV, Blake DF, Grotzinger JP, Rampe EB, Crisp JA, Achilles CN, Ming DW, Ehlmann BL, King PL, Bridges JC, Eigenbrode JL, Sumner DY, Chipera SJ, Moorokian JM, Treiman AH, Morrison SM, Downs RT, Farmer JD, Marais DD, Sarrazin P, Floyd MM, Mischna MA, McAdam AC.

Am Mineral. 2015 Apr;100(4):824-836. doi: 10.2138/am-2015-5077CCBYNCND. Epub 2015 Apr 1.

10.

The first X-ray diffraction measurements on Mars.

Bish D, Blake D, Vaniman D, Sarrazin P, Bristow T, Achilles C, Dera P, Chipera S, Crisp J, Downs RT, Farmer J, Gailhanou M, Ming D, Morookian JM, Morris R, Morrison S, Rampe E, Treiman A, Yen A.

IUCrJ. 2014 Oct 21;1(Pt 6):514-22. doi: 10.1107/S2052252514021150. eCollection 2014 Nov 1. Review.

11.

Calcioferrite with composition (Ca3.94Sr0.06)Mg1.01(Fe2.93Al1.07)(PO4)6(OH)4·12H2O.

Lafuente B, Downs RT, Yang H, Jenkins RA.

Acta Crystallogr Sect E Struct Rep Online. 2014 Feb 28;70(Pt 3):i16-i17. doi: 10.1107/S1600536814004061. eCollection 2014 Mar 1.

12.

Agardite-(Y), Cu(2+) 6Y(AsO4)3(OH)6·3H2O.

Morrison SM, Domanik KJ, Origlieri MJ, Downs RT.

Acta Crystallogr Sect E Struct Rep Online. 2013 Aug 31;69(Pt 9):i61-i62. doi: 10.1107/S1600536813023477. eCollection 2013.

13.

Mineralogy of a mudstone at Yellowknife Bay, Gale crater, Mars.

Vaniman DT, Bish DL, Ming DW, Bristow TF, Morris RV, Blake DF, Chipera SJ, Morrison SM, Treiman AH, Rampe EB, Rice M, Achilles CN, Grotzinger JP, McLennan SM, Williams J, Bell JF 3rd, Newsom HE, Downs RT, Maurice S, Sarrazin P, Yen AS, Morookian JM, Farmer JD, Stack K, Milliken RE, Ehlmann BL, Sumner DY, Berger G, Crisp JA, Hurowitz JA, Anderson R, Des Marais DJ, Stolper EM, Edgett KS, Gupta S, Spanovich N; MSL Science Team.

Science. 2014 Jan 24;343(6169):1243480. doi: 10.1126/science.1243480. Epub 2013 Dec 9.

PMID:
24324271
14.

Curiosity at Gale crater, Mars: characterization and analysis of the Rocknest sand shadow.

Blake DF, Morris RV, Kocurek G, Morrison SM, Downs RT, Bish D, Ming DW, Edgett KS, Rubin D, Goetz W, Madsen MB, Sullivan R, Gellert R, Campbell I, Treiman AH, McLennan SM, Yen AS, Grotzinger J, Vaniman DT, Chipera SJ, Achilles CN, Rampe EB, Sumner D, Meslin PY, Maurice S, Forni O, Gasnault O, Fisk M, Schmidt M, Mahaffy P, Leshin LA, Glavin D, Steele A, Freissinet C, Navarro-González R, Yingst RA, Kah LC, Bridges N, Lewis KW, Bristow TF, Farmer JD, Crisp JA, Stolper EM, Des Marais DJ, Sarrazin P; MSL Science Team.

Science. 2013 Sep 27;341(6153):1239505. doi: 10.1126/science.1239505.

PMID:
24072928
15.

X-ray diffraction results from Mars Science Laboratory: mineralogy of Rocknest at Gale crater.

Bish DL, Blake DF, Vaniman DT, Chipera SJ, Morris RV, Ming DW, Treiman AH, Sarrazin P, Morrison SM, Downs RT, Achilles CN, Yen AS, Bristow TF, Crisp JA, Morookian JM, Farmer JD, Rampe EB, Stolper EM, Spanovich N; MSL Science Team.

Science. 2013 Sep 27;341(6153):1238932. doi: 10.1126/science.1238932.

PMID:
24072925
16.

Redetermination of katayamalite, KLi3Ca7Ti2(SiO3)12(OH)2.

Andrade MB, Doell D, Downs RT, Yang H.

Acta Crystallogr Sect E Struct Rep Online. 2013 Jun 22;69(Pt 7):i41. doi: 10.1107/S1600536813016620. eCollection 2013.

17.

Lanthanite-(Nd), Nd2(CO3)3·8H2O.

Morrison SM, Andrade MB, Wenz MD, Domanik KJ, Downs RT.

Acta Crystallogr Sect E Struct Rep Online. 2013 Mar 1;69(Pt 3):i15-i16. doi: 10.1107/S1600536813003164. Epub 2013 Feb 6.

18.

Pirquitasite, Ag(2)ZnSnS(4).

Schumer BN, Downs RT, Domanik KJ, Andrade MB, Origlieri MJ.

Acta Crystallogr Sect E Struct Rep Online. 2013 Feb 1;69(Pt 2):i8-i9. doi: 10.1107/S1600536813001013. Epub 2013 Jan 19.

19.

Schaurteite, Ca(3)Ge(SO(4))(2)(OH)(6)·3H(2)O.

Origlieri MJ, Downs RT.

Acta Crystallogr Sect E Struct Rep Online. 2013 Feb 1;69(Pt 2):i6. doi: 10.1107/S1600536812050945. Epub 2013 Jan 12.

20.

Penikisite, BaMg(2)Al(2)(PO(4))(3)(OH)(3), isostructural with bjarebyite.

Bowman MG, Downs RT, Yang H.

Acta Crystallogr Sect E Struct Rep Online. 2013 Feb 1;69(Pt 2):i4-i5. doi: 10.1107/S1600536812051793. Epub 2013 Jan 9.

21.

Redetermination of clinobaryl-ite, BaBe(2)Si(2)O(7).

Domizio AJ, Downs RT, Yang H.

Acta Crystallogr Sect E Struct Rep Online. 2012 Oct 1;68(Pt 10):i78-i79. doi: 10.1107/S1600536812040457. Epub 2012 Sep 29.

22.

Robertsite, Ca(2)Mn(III) (3)O(2)(PO(4))(3)·3H(2)O.

Andrade MB, Morrison SM, Di Domizio AJ, Feinglos MN, Downs RT.

Acta Crystallogr Sect E Struct Rep Online. 2012 Oct 1;68(Pt 10):i74-i75. doi: 10.1107/S160053681203735X. Epub 2012 Sep 15.

23.

Redetermination of junitoite, CaZn(2)Si(2)O(7)·H(2)O.

Yang H, Jenkins NG, Downs RT.

Acta Crystallogr Sect E Struct Rep Online. 2012 Oct 1;68(Pt 10):i73. doi: 10.1107/S1600536812037622. Epub 2012 Sep 8.

24.

Nioboaeschynite-(Ce), Ce(NbTi)O(6).

Morrison SM, Downs RT, Domanik KJ, Yang H, Doell D.

Acta Crystallogr Sect E Struct Rep Online. 2012 Aug 1;68(Pt 8):i64-i65. doi: 10.1107/S1600536812031765. Epub 2012 Jul 18.

25.

High-pressure synthetic (Na(0.97)Mg(0.03))(Mg(0.43)Fe(0.17)Si(0.40))Si(2)O(6), with six-coordinated silicon, isostructural with P2/n omphacite.

Posner ES, Konzett J, Frost DJ, Downs RT, Yang H.

Acta Crystallogr Sect E Struct Rep Online. 2012 Feb 1;68(Pt 2):i18. doi: 10.1107/S1600536812002966. Epub 2012 Jan 31.

26.

Redetermination of kovdorskite, Mg(2)PO(4)(OH)·3H(2)O.

Morrison SM, Downs RT, Yang H.

Acta Crystallogr Sect E Struct Rep Online. 2012 Feb 1;68(Pt 2):i12-i13. doi: 10.1107/S1600536812000256. Epub 2012 Jan 11.

27.

Lotharmeyerite, Ca(Zn,Mn)(2)(AsO(4))(2)(H(2)O,OH)(2).

Yang YW, Evans SH, Downs RT, Yang H.

Acta Crystallogr Sect E Struct Rep Online. 2012 Jan;68(Pt 1):i9-i10. doi: 10.1107/S1600536811054286. Epub 2011 Dec 23.

28.

Pyrosmalite-(Fe), Fe(8)Si(6)O(15)(OH,Cl)(10).

Yang H, Downs RT, Yang YW, Allen WH.

Acta Crystallogr Sect E Struct Rep Online. 2012 Jan;68(Pt 1):i7-i8. doi: 10.1107/S1600536811052822. Epub 2011 Dec 14.

29.

Lithio-marsturite, LiCa(2)Mn(2)Si(5)O(14)(OH).

Yang H, Downs RT, Yang YW.

Acta Crystallogr Sect E Struct Rep Online. 2011 Dec 1;67(Pt 12):i73. doi: 10.1107/S1600536811047581. Epub 2011 Nov 16.

30.

Crystallography Open Database (COD): an open-access collection of crystal structures and platform for world-wide collaboration.

Gražulis S, Daškevič A, Merkys A, Chateigner D, Lutterotti L, Quirós M, Serebryanaya NR, Moeck P, Downs RT, Le Bail A.

Nucleic Acids Res. 2012 Jan;40(Database issue):D420-7. doi: 10.1093/nar/gkr900. Epub 2011 Nov 8.

31.

Redetermination of despujolsite, Ca(3)Mn(SO(4))(2)(OH)(6)·3H(2)O.

Barkley MC, Yang H, Evans SH, Downs RT, Origlieri MJ.

Acta Crystallogr Sect E Struct Rep Online. 2011 Sep 1;67(Pt 9):i47-i48. doi: 10.1107/S1600536811030911. Epub 2011 Aug 6.

32.

Discovery of the recoverable high-pressure iron oxide Fe4O5.

Lavina B, Dera P, Kim E, Meng Y, Downs RT, Weck PF, Sutton SR, Zhao Y.

Proc Natl Acad Sci U S A. 2011 Oct 18;108(42):17281-5. doi: 10.1073/pnas.1107573108. Epub 2011 Oct 3.

33.

Bond paths and van der Waals interactions in orpiment, As2S3.

Gibbs GV, Wallace AF, Zallen R, Downs RT, Ross NL, Cox DF, Rosso KM.

J Phys Chem A. 2010 Jun 17;114(23):6550-7. doi: 10.1021/jp102391a.

PMID:
20499911
34.

Kôzulite, an Mn-rich alkali amphibole.

Barkley MC, Yang H, Downs RT.

Acta Crystallogr Sect E Struct Rep Online. 2010 Nov 17;66(Pt 12):i83. doi: 10.1107/S1600536810046015.

35.

Crystallography Open Database - an open-access collection of crystal structures.

Gražulis S, Chateigner D, Downs RT, Yokochi AF, Quirós M, Lutterotti L, Manakova E, Butkus J, Moeck P, Le Bail A.

J Appl Crystallogr. 2009 Aug 1;42(Pt 4):726-729. Epub 2009 May 30.

36.

Role of directed van der Waals bonded interactions in the determination of the structures of molecular arsenate solids.

Gibbs GV, Wallace AF, Cox DF, Dove PM, Downs RT, Ross NL, Rosso KM.

J Phys Chem A. 2009 Jan 29;113(4):736-49. doi: 10.1021/jp807666b.

PMID:
19123777
37.

Raman spectroscopic and visible absorption investigation of LiCrSi2O6 pyroxene under pressure.

Pommier CJ, Redhammer GJ, Denton MB, Downs RT.

Appl Spectrosc. 2008 Jul;62(7):766-72.

PMID:
18935826
39.

Shared and closed-shell O-O interactions in silicates.

Gibbs GV, Downs RT, Cox DF, Ross NL, Boisen MB Jr, Rosso KM.

J Phys Chem A. 2008 Apr 24;112(16):3693-9. doi: 10.1021/jp076396j. Epub 2008 Mar 7.

PMID:
18324795
40.

Safflorite, (Co,Ni,Fe)As(2), isomorphous with marcasite.

Yang H, Downs RT, Eichler C.

Acta Crystallogr Sect E Struct Rep Online. 2008 Aug 23;64(Pt 9):i62. doi: 10.1107/S1600536808026688.

41.

Redetermination of olivenite from an untwinned single-crystal.

Li C, Yang H, Downs RT.

Acta Crystallogr Sect E Struct Rep Online. 2008 Aug 23;64(Pt 9):i60-i61. doi: 10.1107/S1600536808026676.

42.

Redetermination of conichalcite, CaCu(AsO(4))(OH).

Henderson RR, Yang H, Downs RT, Jenkins RA.

Acta Crystallogr Sect E Struct Rep Online. 2008 Aug 6;64(Pt 9):i53-i54. doi: 10.1107/S1600536808024173.

43.

Iranite, CuPb10(CrO4)6(SiO4)2(OH)2, isomorphous with hemihedrite.

Yang H, Sano JL, Eichler C, Downs RT, Costin G.

Acta Crystallogr C. 2007 Dec;63(Pt 12):i122-4. Epub 2007 Nov 30.

PMID:
18057588
44.

Inelastic neutron scattering study of hydrogen in d(8)-THFD(2)O ice clathrate.

Tait KT, Trouw F, Zhao Y, Brown CM, Downs RT.

J Chem Phys. 2007 Oct 7;127(13):134505.

PMID:
17919035
45.

Kolbeckite, ScPO(4).2H(2)O, isomorphous with metavariscite.

Yang H, Li C, Jenkins RA, Downs RT, Costin G.

Acta Crystallogr C. 2007 Oct;63(Pt 10):i91-2. Epub 2007 Sep 22.

PMID:
17917207
46.

Isokite, CaMg(PO(4))F(0.8)(OH)(0.2), isomorphous with titanite.

Yang H, Zwick J, Downs RT, Costin G.

Acta Crystallogr C. 2007 Oct;63(Pt 10):i89-90. Epub 2007 Sep 22.

PMID:
17917206
47.

Tyrrellite, Cu(Co0.68Ni0.32)2Se4, isostructural with spinel.

Yang H, Hubler DK, Lavina B, Downs RT, Costin G.

Acta Crystallogr C. 2007 Aug;63(Pt 8):i73-4. Epub 2007 Jul 26.

PMID:
17675677
48.
49.
50.

Comparison of the electron localization function and deformation electron density maps for selected earth materials.

Gibbs GV, Cox DF, Ross NL, Crawford TD, Downs RT, Burt JB.

J Phys Chem A. 2005 Nov 10;109(44):10022-7.

PMID:
16838920

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