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Dr Graham Shields-Zhou

Jump to: 2013 | 2012 | 2011 | 2010 | 2009 | 2008 | 2007 | 2006 | 2005 | 2004 | 2003 | 2002 | 2001 | 2000 | 1999 | 1997 | 1996
Number of items: 81.

2013

Cremonese, L and Shields-Zhou, G and Struck, U and Ling, H-F and Och, L and Chen, X and Li, D (2013) Marine biogeochemical cycling during the early Cambrian constrained by a nitrogen and organic carbon isotope study of the Xiaotan section, South China. PRECAMBRIAN RESEARCH , 225 148 - 165. 10.1016/j.precamres.2011.12.004.

Li, D and Ling, H-F and Shields-Zhou, GA and Chen, X and Cremonese, L and Och, L and Thirlwall, M and Manning, CJ (2013) Carbon and strontium isotope evolution of seawater across the Ediacaran-Cambrian transition: Evidence from the Xiaotan section, NE Yunnan, South China. PRECAMBRIAN RESEARCH , 225 128 - 147. 10.1016/j.precamres.2012.01.002.

Ling, H-F and Chen, X and Li, D and Wang, D and Shields-Zhou, GA and Zhu, M (2013) Cerium anomaly variations in Ediacaran-earliest Cambrian carbonates from the Yangtze Gorges area, South China: Implications for oxygenation of coeval shallow seawater. PRECAMBRIAN RESEARCH , 225 110 - 127. 10.1016/j.precamres.2011.10.011.

Och, LM and Shields-Zhou, GA and Poulton, SW and Manning, C and Thirlwall, MF and Li, D and Chen, X and Ling, H and Osborn, T and Cremonese, L (2013) Redox changes in Early Cambrian black shales at Xiaotan section, Yunnan Province, South China. PRECAMBRIAN RESEARCH , 225 166 - 189. 10.1016/j.precamres.2011.10.005.

2012

Arnaud, E, and Halverson, GP, and Shields-Zhou, GA, (2012) The Geological Record of Neoproterozoic ice ages. In: Arnaud, E and Halverson, GP and Shields-Zhou, G, (eds.) The Geological Record of Neoproterozoic Glaciations. (1 - 16). Geological Society of London

Lewis, SE and Wuest, RAJ and Webster, JM and Shields, GA and Renema, W and Lough, JM and Jacobsen, G (2012) Development of an inshore fringing coral reef using textural, compositional and stratigraphic data from Magnetic Island, Great Barrier Reef, Australia. MARINE GEOLOGY , 299 18 - 32. 10.1016/j.margeo.2012.01.003.

Lu, M and Zhu, M and Zhang, J and Shields-Zhou, G and Li, G and Zhao, F and Zhao, X and Zhao, M (2012) The DOUNCE event at the top of the Ediacaran Doushantuo Formation, South China: Broad stratigraphic occurrence and non-diagenetic origin. Precambrian Research

McArthur, JM and Howarth, RJ and Shields, GA (2012) Strontium isotope stratigraphy. In: Gradstein, FM, (ed.) The Geologic Time Scale 2012. Elsevier Science Limited

Och, LM and Shields-Zhou, GA (2012) The Neoproterozoic oxygenation event: Environmental perturbations and biogeochemical cycling. EARTH-SCIENCE REVIEWS , 110 (1-4) 26 - 57. 10.1016/j.earscirev.2011.09.004.

Shields-Zhou, GA and Hill, AC and Macgabhann, BA (2012) The Cryogenian Period. In: Gradstein, FM, (ed.) The Geologic Time Scale 2012. Elsevier Science Limited

Wotte, T, and Shields-Zhou, GA, and Strauss, H, (2012) Carbonate-associated sulfate: Experimental comparisons of common extraction methods and recommendations towards a standard analytical protocol. Chemical Geology 10.1016/j.chemgeo.2012.07.020.

Xiao, S and Narbonne, GM and Shields-Zhou, GA (2012) The Ediacaran Period. In: Gradstein, FM, (ed.) The Geologic Time Scale 2012. Elsevier Science Limited

2011

Goldberg, T and Shields, GA and Newton, RJ (2011) Analytical Constraints on the Measurement of the Sulfur Isotopic Composition and Concentration of Trace Sulfate in Phosphorites: Implications for Sulfur Isotope Studies of Carbonate and Phosphate Rocks. GEOSTAND GEOANAL RES , 35 (2) 161 - 174. 10.1111/j.1751-908X.2010.00102.x.

Halverson, GP and Shields-Zhou, G (2011) Chapter 4: Chemostratigraphy and the Neoproterozoic glaciations. In: UNSPECIFIED (51 - 66).

Li, D and Shields-Zhou, GA and Ling, H-F and Thirlwall, M (2011) Dissolution methods for strontium isotope stratigraphy: Guidelines for the use of bulk carbonate and phosphorite rocks. CHEMICAL GEOLOGY , 290 (3-4) 133 - 144. 10.1016/j.chemgeo.2011.09.004.

Pi, D-H and Liu, C-Q and Shields-Zhou, GA and Jiang, S-Y (2011) Trace and rare earth element geochemistry of black shale and kerogen in the early Cambrian Niutitang Formation in Guizhou province, South China: Constraints for redox environments and origin of metal enrichments. Precambrian Research

Shields-Zhou, G (2011) BIOGEOCHEMISTRY Toxic Cambrian oceans. NATURE , 469 (7328) 42 - 43. 10.1038/469042a.

Shields-Zhou, G and Och, L (2011) The case for a neoproterozoic oxygenation event: Geochemical evidence and biological consequences. GSA Today , 21 (3) 4 - 11.
An open access version is available from UCL Discovery
 file

Wotte, T, and Strauss, H, and Shields, GA, (2011) Carbonate-associated sulfate: A seawater proxy with potential and weaknesses. In: Mineralogical Magazine. (pp. 2179 - 2179).

2010

Lewis, SE and Henderson, RA and Dickens, GR and Shields, GA and Coxhell, S (2010) The geochemistry of primary and weathered oil shale and coquina across the Julia Creek vanadium deposit (Queensland, Australia). MINERALIUM DEPOSITA , 45 (6) 599 - 620. 10.1007/s00126-010-0287-6.

Li, D and Shields, G and Ling, HF and Thirlwall, M (2010) Sequential leaching methods for strontium isotope stratigraphy: Analysis of marine authigenic carbonates and phosphates. In: GEOCHIMICA ET COSMOCHIMICA ACTA. (pp. A587 - A587). PERGAMON-ELSEVIER SCIENCE LTD

2009

Cremonese, L and Struck, U and Shields, G and Guo, Q and Ling, H and Och, L (2009) delta N-15 chemostratigraphy of Ediacaran-Cambrian sections of South China. In: GEOCHIMICA ET COSMOCHIMICA ACTA. (pp. A251 - A251).

Hobday, CE and Crawford, IA and Jones, AP and Shields, GA and Ward, JD (2009) Microbial life in alkaline environments on Earth and the potential for life on other planets. In: GEOCHIMICA ET COSMOCHIMICA ACTA. (pp. A537 - A537). PERGAMON-ELSEVIER SCIENCE LTD

Li, D and Ling, HF and Shields, G and Chen, X (2009) C and Sr isotope stratigraphy of the Ediacaran-Cambrian Xiaotan section, Yangtze Platform, S. China. In: GEOCHIMICA ET COSMOCHIMICA ACTA. (pp. A751 - A751). PERGAMON-ELSEVIER SCIENCE LTD

Och, ML and Shields, GA and Ling, HF and Li, D and Cremonese, L and Thirlwall, MF and Manning, CJ and Osborne, T (2009) Redox-sensitive trace metals during the Neoproterozoic Oxygenation Event. In: GEOCHIMICA ET COSMOCHIMICA ACTA. (pp. A962 - A962). PERGAMON-ELSEVIER SCIENCE LTD

Papineau, D and Purohit, R and Goldberg, T and Pi, DH and Shields, GA and Bhu, H and Steele, A and Fogel, ML (2009) High primary productivity and nitrogen cycling after the Paleoproterozoic phosphogenic event in the Aravalli Supergroup, India. PRECAMBRIAN RES , 171 (1-4) 37 - 56. 10.1016/j.precamres.2009.03.005.

Zhu, M and Lu, M and Shen, Y and Shields, G and Zhang, J (2009) Testing primary origin and duration of the largest negative delta C-13 excursion in the Ediacaran ocean: Insight from South China. In: GEOCHIMICA ET COSMOCHIMICA ACTA. (pp. A1532 - A1532). PERGAMON-ELSEVIER SCIENCE LTD

2008

Kouchinsky, A and Bengtson, S and Gallet, Y and Korovnikov, I and Pavlov, V and Runnegar, B and Shields, G and Veizer, J and Young, E and Ziegler, K (2008) The SPICE carbon isotope excursion in Siberia: a combined study of the upper Middle Cambrian-lowermost Ordovician Kulyumbe River section, northwestern Siberian Platform. GEOLOGICAL MAGAZINE , 145 (5) 609 - 622. 10.1017/S0016756808004913.
An open access version is available from UCL Discovery
 file

Lewis, SE and Wust, RAJ and Webster, JM and Shields, GA (2008) Mid-late holocene sea-level variability in eastern Australia. TERRA NOVA , 20 (1) 74 - 81. 10.1111/j.1365-3121.2007.00789.x.

Prokoph, A and Shields, GA and Veizer, J (2008) Compilation and time-series analysis of a marine carbonate delta O-18, delta C-13, Sr-87/Sr-86 and delta S-34 database through Earth history. EARTH-SCI REV , 87 (3-4) 113 - 133. 10.1016/j.earscirev.2007.12.003.

Shields, GA (2008) Palaeoclimate - Marinoan meltdown. NAT GEOSCI , 1 (6) 351 - 353. 10.1038/ngeo214.

2007

Goldberg, T and Shields, G (2007) Tracing oceanic sulphate with phosphorite geochemistry. In: GEOCHIMICA ET COSMOCHIMICA ACTA. (pp. A336 - A336).

Guo, Q and Shields, GA and Liu, C and Strauss, H and Zhu, M and Pi, D and Goldberg, T and Yang, X (2007) Trace element chemostratigraphy of two Ediacaran-Cambrian successions in South China: Implications for organosedimentary metal enrichment and silicification in the early Cambrian. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY , 254 (1-2) 194 - 216. 10.1016/j.palaeo.2007.03.016.

Jaffres, JBD and Shields, GA and Wallmann, K (2007) The oxygen isotope evolution of seawater: A critical review of a long-standing controversy and an improved geological water cycle model for the past 3.4 billion years. EARTH-SCIENCE REVIEWS , 83 (1-2) 83 - 122. 10.1016/j.earscirev.2007.04.002.

Lewis, SE and Shields, GA and Kamber, BS and Lough, JM (2007) A multi-trace element coral record of land-use changes in the Burdekin River catchment, NE Australia. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY , 246 (2-4) 471 - 487. 10.1016/j.palaeo.2006.10.021.

Shields, GA (2007) A normalised seawater strontium isotope curve: possible implications for Neoproterozoic-Cambrian weathering rates and the further oxygenation of the Earth. eEarth , 2 35 - 42.
An open access publication. A version is also available from UCL Discovery.
 file

Shields, GA (2007) Chapter 7.6 The Marine Carbonate and Chert Isotope Records and Their Implications for Tectonics, Life and Climate on the Early Earth. Developments in Precambrian Geology , 15 971 - 983.

Shields, GA and Deynoux, M and Culver, SJ and Brasier, MD and Affaton, P and Vandamme, D (2007) Neoproterozoic glaciomarine and cap dolostone facies of the southwestern Taoudeni Basin (Walidiala Valley, Senegal/Guinea, NW Africa). COMPTES RENDUS GEOSCIENCE , 339 (3-4) 186 - 199. 10.1016/j.crte.2006.10.002.

Shields, GA and Deynoux, M and Strauss, H and Paquet, H and Nahon, D (2007) Barite-bearing cap dolostones of the Taoudeni Basin, northwest Africa: Sedimentary and isotopic evidence for methane seepage after a Neoproterozoic glaciation. PRECAMBRIAN RESEARCH , 153 (3-4) 209 - 235. 10.1016/j.precamres.2006.11.011.

Shields, GA and Kasting, JF (2007) Palaeoclimatology: Evidence for hot early oceans? Nature , 447 (7140)

Wotte, T and Alvaro, JJ and Shields, GA and Brown, B and Brasier, MD and Veizer, J (2007) C-, O- and Sr-isotope stratigraphy across the Lower-Middle Cambrian transition of the Cantabrian Zone (Spain) and the Montagne Noire (France), West Gondwana. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY , 256 (1-2) 47 - 70. 10.1016/j.palaeo.2007.09.002.

Zhu, M and Strauss, H and Shields, GA (2007) From snowball earth to the Cambrian bioradiation: Calibration of Ediacaran-Cambrian earth history in South China. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY , 254 (1-2) 1 - 6. 10.1016/j.palaco.2007.03.026.

2006

Cooper, M and Shields, G and Faithful, J and Zhao, J (2006) Using Sr/Nd isotopic ratios to determine sediment sources in the Burdekin falls dam, Queensland, Australia. In: GEOCHIMICA ET COSMOCHIMICA ACTA. (pp. A112 - A112).

Goldberg, T and Mazumdar, A and Strauss, H and Shields, G (2006) Insights from stable S and O isotopes into biogeochemical processes and genesis of Lower Cambrian barite-pyrite concretions of South China. ORGANIC GEOCHEMISTRY , 37 (10) 1278 - 1288. 10.1016/j.orggeochem.2006.04.013.

Goldberg, T and Shields, GA (2006) Phosphorites as tracers of 2.0 Gyr old ocean chemistry and oxygenation. In: GEOCHIMICA ET COSMOCHIMICA ACTA. (pp. A206 - A206).

Hough, ML and Shields, GA and Evins, LZ and Strauss, H and Henderson, RA and Mackenzie, S (2006) A major sulphur isotope event at c.510 Ma: a possible anoxia-extinction-volcanism connection during the Early-Middle Cambrian transition? TERRA NOVA , 18 (4) 257 - 263. 10.1111/j.1365-3121.2006.00687.x.

Kasting, JF and Howard, MT and Wallmann, K and Veizer, J and Shields, G and Jaffres, J (2006) Paleoclimates, ocean depth, and the oxygen isotopic composition of seawater. EARTH AND PLANETARY SCIENCE LETTERS , 252 (1-2) 82 - 93. 10.1016/j.epsl.2006.09.029.

Shields, GA (2006) Snowball earth is dead! Long live snowball Earth! EPISODES , 29 (4) 287 - 288.

2005

Shields, GA (2005) Neoproterozoic cap carbonates: a critical appraisal of existing models and the plumeworld hypothesis. TERRA NOVA , 17 (4) 299 - 310. 10.1111/j.1365-3121.2005.00638.x.

Shields, GA (2005) The Carbon Cycle. In: Selley, RC and Cocks, R and Plimer, I, (eds.) The Encyclopaedia of Geology. (335 - 345). Elsevier

2004

Evins, LZ and Shields, G and Glass, LM and Brown, B (2004) A possible connection between mass extinction and volcanism in the late Early Cambrian. In: GEOCHIMICA ET COSMOCHIMICA ACTA. (pp. A574 - A574).

Perret, D and Stille, P and Crovisier, J-L and Shields, G and Mäder, U and Schenk, K and Chardonnens, M (2004) Corrosion and stability of vitrified material derived from municipal solid waste. In: UNSPECIFIED (381 - 410).

Robb, L and Knoll, AH and Plumb, K and Shields, GA and Strauss, H and Veizer, J (2004) The Precambrian. In: Ogg, JG and Gradstein, F and Smith, A, (eds.) The 2004 Geological Timescale. (128 - 140). Cambridge University press

Shields, G and Kimura, H and Yang, JD and Gammon, P (2004) Sulphur isotopic evolution of neoproterozole-Cambrian seawater: new francolite-bound sulphate delta S-34 data and a critical appraisal of the existing record. CHEMICAL GEOLOGY , 204 (1-2) 163 - 182. 10.1016/j.chemgeo.2003.12.001.

Shields, GA (2004) Mass extinctions and massive volcanism. Australasian Science , 25 (4) 14 - 18.

Shields, GA and Deynoux, M and Strauss, H and Stille, P (2004) Isotopic evidence for methane seep origin of barite in Neoproterozoic cap carbonates of NW Africa. In: GEOCHIMICA ET COSMOCHIMICA ACTA. (pp. A327 - A327).

Shields, GA and Veizer, J (2004) Isotopic signatures. In: Webby, BD and Paris, F, and Droser, ML, and Percival, IG,, (eds.) The Great Ordovician Biodiversification Event. (68 - 71).

Shields, GA and Webb, GE (2004) Has the REE composition of seawater changed over geological time? CHEMICAL GEOLOGY , 204 (1-2) 103 - 107. 10.1016/j.chemgeo.2003.09.010.

2003

Perret, D and Crovisier, JL and Stille, P and Shields, G and Mader, U and Advocat, T and Schenk, K and Chardonnens, M (2003) Thermodynamic stability of waste glasses compared to leaching behaviour. APPLIED GEOCHEMISTRY , 18 (8) 1165 - 1184. 10.1016/S0883-2927(02)00245-7.

Shields, GA and Carden, GAF and Veizer, J and Meidla, T and Rong, JY and Li, RY (2003) Sr, C, and O isotope geochemistry of Ordovician brachiopods: A major isotopic event around the Middle-Late Ordovician transition. GEOCHIMICA ET COSMOCHIMICA ACTA , 67 (11) , Article PII S0016-7037(02)01116-X. 10.1016/S0016-7037(02)01116-X.

2002

Shields, GA (2002) 'Molar-tooth microspar': a chemical explanation for its disappearance similar to 750 Ma. TERRA NOVA , 14 (2) 108 - 113. 10.1046/j.1365-3121.2002.00396.x.

Shields, GA and Brasier, MD and Stille, P and Dorjnamjaa, DI (2002) Factors contributing to high delta C-13 values in Cryogenian limestones of western Mongolia. EARTH AND PLANETARY SCIENCE LETTERS , 196 (3-4) , Article PII S0012-821X(02)00461-1. 10.1016/S0012-821X(02)00461-2.

Shields, GA and Veizer, J (2002) The Precambrian marine carbonate isotope database: version 1.1. Geochemistry, Geophysics, Geosystems , 3 (6) , Article 1031. 10.1029/2001GC000266.
An open access version is available from UCL Discovery
 file

2001

Ebneth, S and Shields, GA and Veizer, J and Miller, JF and Shergold, JH (2001) High-resolution strontium isotope stratigraphy across the Cambrian-Ordovician transition. GEOCHIMICA ET COSMOCHIMICA ACTA , 65 (14) 2273 - 2292. 10.1016/S0016-7037(01)00580-4.

Purton-Hildebrand, LMA and Grime, GW and Shields, GA and Brasier, MD (2001) The use of external micro-PIXE to investigate the factors determining the Sr : Ca ratio in the shells of fossil aragonitic molluscs. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS , 181 506 - 510. 10.1016/S0168-583X(01)00626-7.

Shields, G and Stille, P (2001) Diagenetic constraints on the use of cerium anomalies as palaeoseawater redox proxies: An isotopic and REE study of Cambrian phosphorites. Chemical Geology , 175 (1-2) 29 - 48.

Shields, G. and Stille, P. (2001) Diagenetic constraints on the use of cerium anomalies as palaeoseawater redox proxies: an isotopic and REE study of Cambrian phosphorites. Chemical Geology , 175 (1-2) pp. 29-48. 10.1016/S0009-2541(00)00362-4.

2000

Brasier, M and McCarron, G and Tucker, R and Leather, J and Allen, P and Shields, G (2000) New U-Pb zircon dates for the Neoproterozoic Ghubrah glaciation and for the top of the Huqf Supergroup, Oman. GEOLOGY , 28 (2) 175 - 178. 10.1130/0091-7613(2000)028<0175:NUPZDF>2.3.CO;2.

Brasier, MD and Shields, G (2000) Neoproterozoic chemostratigraphy and correlation of the Port Askaig glaciation, Dalradian Supergroup of Scotland. JOURNAL OF THE GEOLOGICAL SOCIETY , 157 909 - 914.

Compton, J, and Mallinson, D, and Glenn, CR, and Filipelli, G and Follmi, K, and Shields, G, and Zanin, Y (2000) Variations in the global phosphorus cycle. In: Glenn, CR and Prévôt-Lucas, L and Lucas, J and Geology, SEPMSFS, (eds.) Marine authigenesis: from global to microbial. (21 - 33). SEPM (Society for Sedimentary Geology)

Shields, GA and Stille, P and Brasier, MD (2000) Isotopic records across two phosphorite giant episodes compared: the Precambrian-Cambrian and the late Cretaceous-Recent. In: Glenn, C and Prevot-Lucas, L and Lucas, J, (eds.) Marine authigenesis: from global to microbial. (103 - 116).

Yang, JD and Chen, J and An, ZS and Shields, G and Tao, XC and Zhu, HB and Ji, JF and Chen, Y (2000) Variations in Sr-87/Sr-86 ratios of calcites in Chinese loess: a proxy for chemical weathering associated with the East Asian summer monsoon. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY , 157 (1-2) 151 - 159. 10.1016/S0031-0182(99)00159-5.

1999

Purton, LMA and Shields, GA and Brasier, MD and Grime, GW (1999) Metabolism controls Sr/Ca ratios in fossil aragonitic mollusks. GEOLOGY , 27 (12) 1083 - 1086. 10.1130/0091-7613(1999)027<1083:MCSCRI>2.3.CO;2.

Shields, G (1999) Working towards a new stratigraphic calibration scheme for the Neoproterozoic-Cambrian. ECLOGAE GEOLOGICAE HELVETIAE , 92 (2) 221 - 233.

Shields, GA and Strauss, H and Howe, SS and Siegmund, H (1999) Sulphur isotope compositions of sedimentary phosphorites from the basal Cambrian of China: implications for Neoproterozoic-Cambrian biogeochemical cycling. JOURNAL OF THE GEOLOGICAL SOCIETY , 156 943 - 955. 10.1144/gsjgs.156.5.0943.

1997

Brasier, M and Green, O and Shields, G (1997) Ediacarian sponge spicule clusters from southwestern Mongolia and the origins of the Cambrian fauna. GEOLOGY , 25 (4) 303 - 306. 10.1130/0091-7613(1997)025<0303:ESSCFS>2.3.CO;2.

Shields, G and Stille, P and Brasier, MD and Atudorei, NV (1997) Stratified oceans and oxygenation of the late Precambrian environment: a postglacial geochemical record from the Neoproterozoic of W Mongolia. TERRA NOVA , 9 (5-6) 218 - 222. 10.1111/j.1365-3121.1997.tb00016.x.

Stille, P and Shields, GA (1997) Radiogenic isotope geochemistry of sedimentary and aquatic systems. Lecture Notes in Earth Science: Vol.68. Springer-Verlag: Berlin Heidelberg.

1996

Brasier, MD and Shields, G and Kuleshov, VN and Zhegallo, EA (1996) Integrated chemo- and biostratigraphic calibration of early animal evolution: Neoproterozoic early Cambrian of southwest Mongolia. GEOLOGICAL MAGAZINE , 133 (4) 445 - 485.

Jacobs, E and Weissert, H and Shields, G and Stille, P (1996) The Monterey event in the Mediterranean: A record from shelf sediments of Malta. Paleoceanography , 11 (6) 717 - 728. 10.1029/96PA02230.
An open access version is available from UCL Discovery
 file

Lindsay, JF and Brasier, MD and Shields, G and Khomentovsky, VV and BatIreedui, YA (1996) Glacial facies associations in a Neoproterozoic back-arc setting, Zavkhan basin, western Mongolia. GEOLOGICAL MAGAZINE , 133 (4) 391 - 402.

This list was generated on Sat May 18 04:45:04 2013 BST.

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