Bentonite geochronology, marine geochemistry, and the Great Ordovician Biodiversification Event (GOBE)

Palaeogeography, Palaeoclimatology, Palaeoecology

Volumn 321-322, Issue , 2012, Pages 88-101

  Thompson, Cara K ^a   Kah, Linda C ^a   Astini, Ricardo ^b   Bowring, Samuel A ^c   Buchwaldt, Robert ^c  

^a UNIVERSITY OF TENNESSEE   (United States)

^b UNIVERSIDAD NACIONAL DE CÓRDOBA   (Argentina)

^c MASSACHUSETTS INSTITUTE OF TECHNOLOGY   (United States)

Author keywords

Argentina; Environmental change; Geochronology; K bentonite; Middle Ordovician

Indexed keywords

BENTONITE; BIOGEOCHEMICAL CYCLE; BIOSTRATIGRAPHY; CARBON ISOTOPE; CHEMOSTRATIGRAPHY; CLIMATE FORCING; GEOCHRONOLOGY; ORDOVICIAN; PALEOCEANOGRAPHY; PALEOENVIRONMENT; SEA SURFACE TEMPERATURE; VOLCANISM;

ARGENTINA; EUROPE; NORTH AMERICA; SAN JUAN [ARGENTINA];

EID: 84857658271     PISSN: 00310182     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.palaeo.2012.01.022     Document Type: Article

References (110)

1. Achab A., Paris F. The Ordovician chitinozoan biodiversification and its leading factors. Palaeogeography, Palaeoclimatology, Palaeoecology 2007, 245:5-19.
2. Ainsaar L., Meidla T., Tinn O. Middle and Upper Ordovician stable isotope stratigraphy across the facies belts in the East Baltic. WOGOGOB-2004 Conference Materials 2004, 11-12. Tartu University Press, Tartu. O. Hints, L. Ainsaar (Eds.).
3. Ainsaar L., Kaljo D., Martma T., Meidla T., Männik P., Nõlvak J., Tinn O. Middle and Upper Ordovician carbon isotope chemostratigraphy in Baltoscandia: a correlation standard and clues to environmental history. Palaeogeography, Palaeoclimatology, Palaeoecology 2010, 294:189-201.
4. Albanesi G.L., Ortega G. Advances on conodont-graptolite biostratigraphy of the Ordovician system of Argentina. Serie Correlacion Geologica 2002, 16:143-165.
5. Albanesi G.L., Hünicken M.A., Barnes C.R. Bioestratigrafía de conodontes de las secuencias ordovícicas del cerro Potrerillo, Precordillera Central de San Juan, R. Argentina. Actas XII Academia Nacional de Ciencias, Córdoba 1998, 7-72. (in Spanish).
6. Albanesi G.L., Ortega G., Barnes C.R., Hünicken M.A. Conodont-graptolite biostratigraphy of the Gualcamayo Formation (Middle Ordovician) in the Gualcamayo-Guandacol rivers area, Argentina Precordillera. Acta Univesitatis Carolinae - Geologica 1999, 43:45-48.
7. Astini R.A. Geologic meaning of Arenig-Llanvirn diachronous black shales (Gualcamayo Alloformation) in the Argentine Precordillera, tectonic or eustatic?. Ordovician Odyssey: Short Papers for the 7th International Symposium on the Ordovician System. Pacific Section, Society for Sedimentary Geology, Fullerton, CA 1995, 217-220.
8. Astini R.A. Ordovician basins of Argentina. Ordovician Fossils of Argentina 2003, 1-74. Universidad Nacional de Córdoba. J.L. Benedetto (Ed.).
9. Astini R.A., Dávila F.M. Ordovician back arc foreland and Ocloyic thrust belt development on the western Gondwana margin as a response to Precordillera terrane accretion. Tectonics 2004, 23:TC4008. 10.1029/2003TC001620.
10. Astini R.A., Benedetto J.L., Vaccari N.E. The early Paleozoic evolution of the Argentine Precordillera as a Laurentian rifted, drifted, and collided terrane: a geodynamic model. Geological Society of America Bulletin 1995, 107:253-273.
11. Astini R.A., Collo G., Martina F. Ordovician K-bentonites in the upper-plate active margin of Western Gondwana, (Famatina Ranges): stratigraphic and palaeogeographic significance. Gondwana Research 2007, 11:311-325.
12. Bambach R.K. Seafood through time: changes in biomass, energetics, and productivity in the marine ecosystem. Paleobiology 1993, 19:372-397.
13. Barnes C.R. Was there an Ordovician superplume event. The Great Ordovician Biodiversification Event 2004, 77-80. Columbia University Press, New York. B.D. Webby, M.L. Droser, F. Paris, I.G. Percival (Eds.).
14. Benedetto J.L. Early Paleozoic brachiopods and associated shelly faunas from western Gondwana: its bearing on the geodynamic history of the pre-Andean margin. Geological Society of London, Special Publication 1998, 142:57-83. R.J. Pankhurst, C.W. Rapela (Eds.).
15. Benedetto J.L. The allochthony of the Argentine Precordillera ten years later (1993-2003): a new paleobiologic test of the microcontinent model. Gondwana Research 2004, 7:1027-1039.
16. Benedetto J.L., Sánchez T.M., Carrera M.G., Brussa E.D., Salas M.J. Paleontological constraints on successive paleogeographic positions of Precordillera terrane during the early Paleozoic. Geological Society of America, Special Paper 1999, 336:21-42.
17. Bergström S.M. The Ordovician conodont biostratigraphy in the Siljan region, south-central Sweden: a brief review of an international reference standard. Field Guide and Abstracts: Sveriges Geologiska Undersökning, Rapporter och Meddelanden 2007, 128:26-41. J.O.R. Ebbestad, L.M. Wickström, A.E.S. Högström (Eds.).
18. Bergström S.M., Huff W., Kolata D., Bauert H. Nomenclature, stratigraphy chemical fingerprinting, and real distribution of some middle Ordovician bentonites in Baltoscandia. GFF 1995, 117:1-13.
19. Bergström S.M., Huff W.D., Saltzman M.R., Kolata D.R., Leslie S.A. The greatest volcanic ash falls in the Phanerozoic: Millbrig and Kinnekulle K-bentonites. The Sedimentary Record 2004, 2:4-7.
20. 13C chemostratigraphy. Lethaia 2008, 42:97-107.
21. 2 over Phanerozoic time. American Journal of Science 2001, 301:182-204.
22. Bottjer D.J., Droser M.L., Sheehan P.M., McGhee G.R. The ecological architecture of major events in the Phanerozoic history of marine life. Evolutionary Paleoecology. The Ecological Context of Macroevolutionary Change 2001, 35-61. Columbia University Press, New York. W.D. Allmon, D.J. Bottjer (Eds.).
23. Brenchley P.J., Marshall J.D., Carden G.A.F., Robertson D.B.R., Long D.G.F., Meidla T., Hints L., Anderson T.F. Bathymetric and isotopic evidence for a short-lived Late Ordovician glaciation in a greenhouse period. Geology 1994, 22:295-298.
24. Buggisch W., Keller M., Lehnert O. Carbon isotope record of the Late Cambrian to Early Ordovician carbonates of the Argentine Precordillera. Palaeogeography, Palaeoclimatology, Palaeoecology 2003, 195:357-373.
25. Buggisch W., Joachimski M.M., Lehnert O., Bergström S.M., Repetski J.E., Webers G.F. Did intense volcanism trigger the first Late Ordovician icehouse?. Geology 2010, 38:327-330.
26. 86Sr throughout Phanerozoic time. Geology 1982, 10:516-519.
27. Calner M., Lehnert O., Nolvak J. Palaeokarst evidence for widespread regression and subaerial exposure in the middle Katian (Upper Ordovician) of Baltoscandia: significance for global climate. Palaeogeography, Palaeoclimatology, Palaeoecology 2010, 296:235-247.
28. Cañas F.L. Facies and sequences of the Late Cambrian-Early Ordovician carbonates of the Argentine Precordillera: a stratigraphic comparison with Laurentian platforms. Geological Society of America, Special Paper 1999, 336:43-62. V.A. Ramos, J.D. Keppie (Eds.).
29. Cañas F.L., Aguirre H.D. High-resolution stratigraphy of the San Juan Formation, Lower Ordovician, Precordillera of Cuyo, San Juan, Argentina; preliminary results. Actas del Congresa Geologico Argentino 2005, 16:365-370. (in Spanish).
30. Cardenas A.L., Harries P.J. Effect of nutrient availability on marine origination rates throughout the Phanerozoic eon. Nature Geoscience 2010, 3:430-434.
31. Casquet C., Baldo E., Pankhurst R., Rapela C., Galindo C., Fanning C., Saawedra J. Involvement of the Argentine Precordillera terrane in the Famatinian mobile belt: U-Pb SHRIMP and metamorphic evidence from the Sierra de Pie de Palo. Geology 2001, 29:703-706.
32. Cherns L., Wheeley J.R. A pre-Hirnantian (Late Ordovician) interval of global cooling - the Boda event re-assessed. Palaeogeography, Palaeoclimatology, Palaeoecology 2007, 251:449-460.
33. Corfu F., Hanchar J.M., Hoskin P.W.O., Kinny P. Atlas of zircon textures. Mineralogical Society of America 2003, 53:468-500. J.M. Hanchar, P.W.O. Hoskin (Eds.).
34. Droser M.L., Finnegan S. The Ordovician radiation: a follow-up to the Cambrian explosion. Integrative and Comparative Biology 2003, 43:178-184.
35. Droser M.L., Sheehan P.M. Palaeoecology of the Ordovician Radiation: resolution of large-scale patterns with individual clade histories, palaeogeography and environments. Geobios 1997, 20:221-229.
36. Fanning C.M., Pankhurst R.J., Rapela C.W., Baldo E.G., Casquet C., Galindo C. K-bentonites in the Argentine Precordillera contemporaneous with rhyolite volcanism in the Famatinian Arc. Journal of the Geological Society of London 2004, 161:747-756.
37. Felitsyn S.B., Kirianov V.Y. Mobility of phosphorus during the weathering of volcanic ashes. Lithology and Mineral Resources 2002, 37:275-278.
38. Finnegan S., Bergmann K., Eiler J.M., Jones D.S., Fike D.A., Eisenman I., Hughes N.C., Tripati A.K., Fischer W.W. The magnitude and duration of Late Ordovician-Early Silurian Glaciation. Science 2011, 331:903-906.
39. Gaddy A.J., Parker R.A. Zooplankton grazing activity and assimilation in the presence of Mount St. Helens ash. Northwest Science 1986, 60:47-51.
40. Gomez F.J., Ogle N., Astini R.A., Kalin R.M. Paleoenvironmental and carbon-oxygen isotope record of Middle Cambrian carbonates (La Laja Formation) in the Argentine Precordillera. Journal of Sedimentary Research 2007, 77:826-842.
41. Hamoumi N. Upper Ordovician glaciation spreading and its sedimentary record in Moroccan North Gondwana margin. Acta Universitatis Carolinae Geologica 1999, 43:11-14.
42. Haq B.U., Schutter S.R. A chronology of Paleozoic sea-level changes. Science 2008, 322:64-68.
43. Harper D.A.T. The Ordovician biodiversification: setting and agenda for marine life. Palaeogeography, Palaeoclimatology, Palaeoecology 2006, 232:148-166.
44. 2, poleward ocean heat transport and sea level change on global cooling during the Late Ordovician. Palaeogeography, Palaeoclimatology, Palaeoecology 2004, 206:59-74.
45. Herrmann A.D., MacLeod K.G., Leslie S.A. Did a volcanic mega-eruption cause global cooling during the Late Ordovician?. Palaios 2010, 25:831-836.
46. Hints O., Delabroye A., Nõlvak J., Servais T., Uutela A., Wallin A. Biodiversity patterns of Ordovician marine microphytoplankton from Baltica: comparison with other fossil groups and sea-level changes. Palaeogeography, Palaeoclimatology, Palaeoecology 2010, 294:161-173.
47. Huff W.D. Ordovician K-bentonites: issues in interpreting and correlating ancient tephras. Quaternary International 2008, 178:276-287.
48. Huff W., Bergström S.M., Kolata D. Gigantic Ordovician ashfall in North America and Europe: biological, tectonomagmatic, and event stratigraphic significance. Geology 1992, 20:875-878.
49. Huff W.D., Kolata D.R., Bergström S.M., Zhang Y.-S. Large-magnitude Middle Ordovician volcanic ash falls in North America and Europe: dimensions, emplacement and post-emplacement characteristics. Journal of Volcanology and Geothermal Research 1996, 73:285-301.
50. Huff W.D., Davis D., Bergström S.M., Krekeler M.P.S., Kolata D.R., Cingolani C. A biostratigraphically well-constrained K-bentonite U-Pb zircon age of the lowermost Darriwilian State (Middle Ordovician) from the Argentine Precordillera. Episodes 1997, 20:29-33.
51. Huff W.D., Bergström S.M., Kolata D.R., Cingolani C.A., Astini R.A. Ordovician K-bentonites in the Argentine Precordillera: relations to Gondwana margin evolution. Geological Society, London, Special Publication 1998, 142:107-126. R.J. Pankhurst, C.W. Rapela (Eds.).
52. Huff W.D., Bergström S.M., Kolata D.R. Ordovician explosive volcanism. Geological Society of America, Special Paper 2010, 466:13-28.
53. Jablonski D. Extinctions: a paleontological perspective. Science 1991, 253:754-757.
54. Jaffey A.H., Flynn K.F., Glendenin L.E., Bently W.C., Essling A.M. Precision measurement of the halflives and specific activities of U235 and U238. Physical Review 1971, C4:1889-1906.
55. Kaljo D., Martma T., Saadre T. Post-Hunnebergian Ordovician carbon isotope trend in Baltoscanadia, its environmental implications and some similarities with that of Nevada. Palaeogeography, Palaeoclimatology, Palaeoecology 2007, 245:138-155.
56. Keller M. Argentine Precordillera: sedimentary and plate tectonic history of a Laurentian crustal fragment in South America. Geological Society of America, Special Paper 1999, 341. (131pp.).
57. Keller M., Lehnert O. Ordovician paleokarst and quartz sand: evidence of volcanically triggered extreme climates?. Palaeogeography, Palaeoclimatology, Palaeoecology 2010, 296:297-309.
58. Keller M., Eberlein S., Lehnert O. Sedimentology of Middle Ordovician carbonates in the Argentine Precordillera: evidence of regional relative sea-level changes. Geologische Rundschau 1993, 82:362-377.
59. Kidder D.L., Worsley D.L. Phanerozoic Large Igneous Provinces (LIPs), HEATT (Haline Euxinic Acidic Thermal Transgression) episodes, and mass extinctions. Palaeogeography, Palaeoclimatology, Palaeoecology 2010, 295:162-191.
60. Kolata D.R., Huff W.D., Bergström S.M. Ordovician K-bentonites of eastern North America. GSA Special Paper 1996, 313:1-84.
61. Krogh T.E. A low contamination method for hydrothermal decomposition of zircon and extraction of U and Pb for isotopic age determination. Geochimica et Cosmochimica Acta 1973, 37:485-494.
62. 2 during the Late Ordovician. Palaeogeography, Palaeoclimatology, Palaeoecology 1999, 152:173-187.
63. Lefebvre V., Servais T., François L., Averbuch O. Did a Katian large igneous province trigger the Late Ordovician glaciation? A hypothesis tested with a carbon cycle model. Palaeogeography, Palaeoclimatology, Palaeoecology 2010, 296:310-319.
64. Maletz J., Albanesi G.L., Voldman G.G. Lower Darriwilian radiolarians from the Argntine Precordillera. Geobios 2009, 42:53-61.
65. Mattinson J.M. Zircon U-Pb chemical-abrasion (CA-TIMS) method: combined annealing and multi-step dissolution analysis for improved precision and accuracy of zircon ages. Chemical Geology 2005, 220:47-56.
66. McLean N.M., Bowring J.F., Bowring S.A., Schoene R.B. More than just an age: quantitative analysis of geochronological data and uncertainty. Geological Society of America Abstracts with Programs 2008, 40:134.
67. McLean N., Bowring J.F., Bowring S.A. Using statistics and software to maximize precision and accuracy in U-Pb geochronological measurements. American Geophysical Union Abstract No. V33B-2033 2009.
68. Noble P.J., Danelian T. Radiolarians. The Great Ordovician Biodiversification Event 2004, 97-101. Columbia University Press, New York. B.D. Webby, M.L. Droser, F. Paris, I.G. Percival (Eds.).
69. Owen A.W., Crame J.A. Palaeobiogeography and the Ordovician and Mesozoic-Cenozoic radiations. Geological Society, London, Special Publications 2002, 194:1-11. J.A. Crame, A.W. Owen (Eds.).
70. Pankhurst R.J., Rapela C.W., Casquet C., Baldo E., Saavedra J., Galindo C. Early Paleozoic evolution of the Gondwana margin of South America. Journal of African Earth Sciences 1998, 27:145-146.
71. Pankhurst R.J., Rapela C.W., Fanning C.M. Age and origin of coeval TTG, I- and S-type granites in the Famatinian belt of NW Argentina. Transactions of the Royal Society of Edinburgh, Earth Science 2000, 91:151-168.
72. Paris F., Achab A., Chen X., Grahn Y., Nolvak J., Obut O., Samuelsson J., Sennikov N., Vecoli M., Verniers J., Wang X., Winchester-Seeto T. Chitinozoans. The Great Ordovician Biodiversification Event 2004, 294-311. Columbia University Press, New York. B.D. Webby, M.L. Droser, F. Paris, I.G. Percival (Eds.).
73. Pope M.C., Read J.F. Ordovician metre-scale cycles: implications for Ordovician climate and eustatic fluctuations in the central Appalachian Basin, USA. Palaeoclimatology, Palaeogeography, Palaeoecology 1998, 138:27-42.
74. Pope M.C., Steffan J.B. Widespread, prolonged late Middle to Late Ordovician upwelling in North America: a proxy record of glaciation. Geology 2003, 31:63-66.
75. Qing H., Barnes C.R., Buhl D., Veizer J. The strontium isotopic composition of Ordovician and Silurian brachiopods and conodonts: relationships to geological events and implications for coeval seawater. Geochimica et Cosmochimica Acta 1998, 62:1721-1733.
76. Ramos V.A. The tectonics of the Central Andes : 30°-33° S latitude. Geological Society of America, Special Paper 1988, 218:31-54. C. Burchfiel, J. Suppe (Eds.).
77. Ramos V.A. Cuyania, an exotic block to Gondwana: review of a historical success and the present problems. Gondwana Research 2004, 7:1009-1026.
78. Rapela C.W., Pankhurst R.J., Casquet C., Baldo E., Saavedra J., Galindo C. Early evolution of the proto-Andean margin of South America. Geology 1998, 26:707-710.
79. Rapela C.W., Pankhurst R.J., Baldo E., Casquet C., Galindo C., Fanning C.M., Saavedra J. Ordovician metamorphism in the Sierras Pampeanas: new U-Pb SHRIMP ages in central-east Valle Fértil and the Velasco batholith. 3° S. American Symposium on Isotope Geology 2001, 616-619.
80. Saltzman M.R. Phosphorus, nitrogen, and the redox evolution of the Paleozoic oceans. Geology 2005, 33(7):573-576.
81. Saltzman M.R., Young S.A. Long-lived glaciation in the Late Ordovician? Isotopic and sequence-stratigraphic evidence from western Laurentia. Geology 2005, 33:109-112.
82. Sarmiento G.N. Conodonts of the Suecicus Zone (lower Llanvirnian) in the Sierra de Villicum, San Juan Precordillera, Argentina. Revista Espanola de Micropaleontologica 1991, 23:113-132. (in Spanish).
83. Schmitz B., Harper D.A.T., Peucker-Ehrenbrink B., Stouge S., Alwmark C., Cronholm A., Bergström S.M., Tassinari M., Wang X.F. Asteroid breakup linked to the Great Ordovician Biodiversification Event. Nature Geoscience 2007, 1:49-53.
84. 13C excursion (MDICE) discovered in the Yangtze Platform succession in China: implications of its first recorded occurrences outside Baltoscanadia. Journal of the Geological Society of London 2010, 167:249-259.
85. Schoene B., Crowley J.L., Condon D.J., Schmitz M.D., Bowring S.A. Reassessing the uranium decay constants for geochronology using ID-TIMS U-Pb data. Geochimica et Cosmochimica Acta 2006, 70:426-445.
86. Scotese C.R., McKerrow W.S. Revised world maps and introduction. Memoir of the Geological Society of London 1990, 12:1-21. W.S. McKerrow, C.R. Scotese (Eds.).
87. Servais T., Lehnert O., Li J., Mullins G.L., Munnecke A., Nützel A., Vecoli M. The Ordovician biodiversification: revolution in the oceanic trophic chain. Lethaia 2008, 41:99-109.
88. Servais T., Harper D.A.T., Li J., Munnecke A., Owen A.W., Sheehan P.M. Understanding the Great Ordovician Biodiversification Event (GOBE): influences of paleogeography, paleoclimate, or paleoecology?. GSA Today 2009, 19:4-10.
89. Servais T., Owen A.W., Harper D.A.T., Kröger B., Munnecke A. The Great Ordovician Biodiversification Event (GOBE): the palaeoecological dimension. Palaeogeography, Palaeoclimatology, Palaeoecology 2010, 294:99-119.
90. Sheehan P.M. The Late Ordovician mass extinction. Annual Reviews of Earth and Planetary Sciences 2001, 29:331-364.
91. Shields G.A., Carden G.A.F., Veizer J., Meidla T., Rong J.Y., Rong Y.L. Sr, C, and O isotope geochemistry of Ordovician brachiopods: a major isotopic event around the Middle-Late Ordovician transition. Geochimica et Cosmochimica Acta 2003, 67:2005-2025.
92. Signor P.W., Vermeij G. The plankton and the benthos: origins and early history of an evolving relationship. Paleobiology 1994, 20:297-319.
93. Steiger R.H., Jager E. Subcomission of geochronology: convention on the use of decay constants in geo- and cosmochronology. Earth and Planetary Science Letters 1977, 36:359-362.
94. Theron J.N. The Ordovician System in South Africa; correlation chart and explanatory notes. The Ordovician System in Greenland and South Africa: International Union of Geological Sciences 1994, 29:1-5. S.H. Williams (Ed.).
95. Thomas W.A., Astini R.A. The Argentine Precordillera: a traveler from the Ouachita embayment of North American Laurentia. Science 1996, 273:752-757.
96. Thomas W.A., Astini R.A. Simple-shear conjugate rift margins of the Argentine Precordillera and the Ouachita embayment of Laurentia. Geological Society of America Bulletin 1999, 111:1069-1079.
97. Thomas W.A., Astini R.A. Ordovician accretion of the Argentine Precordillera terrane to Gondwana: a review. Journal of South America Earth Science 2003, 16:667-679.
98. Thompson C.K., Kah L.C. Sulfur isotope evidence for widespread euxinia and a fluctuating oxycline in Early to Middle Ordovician greenhouse oceans. Palaeogeography, Palaeoclimatology, Palaeoecology 2012, 313-314:189-214.
99. Thompson C.K., Kah L.C., Kaufman A.J. Sulfur cycling in the late Middle Ordovician: implications for ocean circulation and the onset of Late Ordovician glaciation. GSA Abstracts with Programs 2010, 42:513.
100. Trotter J.A., Williams I.S., Barnes C.R., Lécuyer C., Nicoll R.S. Did cooling oceans trigger Ordovician biodiversification? Evidence from conodont thermometry. Science 2008, 321:550-554.
101. 86Sr in Precambrian carbonates as an index of crustal evolution. Geochimica et Cosmochimica Acta 1974, 40:905-914.
102. Veizer J., Fritz P., Jones B. Geochemistry of brachiopods, oxygen, and carbon isotopic records of Paleozoic oceans. Geochimica et Cosmochimica Acta 1986, 50:1679-1696.
103. Walker J.D., Geissman J.W. 2009 GSA geologic time scale. GSA Today 2009, 19:60-61.
104. Walker L.J., Wilkinson B.H., Ivany L.C. Continental drift and Phanerozoic carbonate accumulation in shallow-shelf and deep-marine settings. Journal of Geology 2002, 110:75-87.
105. Webby B.D., Paris F., Droser M.L., Percival I.G. The Great Ordovician Biodiversification Event 2004, 1-484. Columbia University Press, New York.
106. 13C) stratigraphy in eastern and central North America: regional expression of a perturbation of the global carbon cycle. Palaeogeography, Palaeoclimatology, Palaeoecology 2005, 222:53-76.
107. org records of Upper Ordovician (Sandbian-Katian) carbonates in North America and China: implications for paleoceanographic change. Palaeogeography, Palaeoclimatology, Palaeoecology 2008, 270:166-178.
108. 86Sr during the Middle Ordovician (Darriwilian): links to volcanism and climate. Geology 2009, 37:951-954.
109. 2 coincide with latest Ordovician glacial-interglacial cycles?. Palaeogeography, Palaeoclimatology, Palaeoecology 2010, 296:376-388.
110. Zhang T., Shen Y., Algeo T.J. High-resolution carbon isotopic records from the Ordovician of South China: links to climatic cooling and the Great Ordovician Biodiversification Event (GOBE). Palaeogeography, Palaeoclimatology, Palaeoecology 2010, 289:102-112.