Carbon chemostratigraphy of the Cambrian-Ordovician transition in a midlatitude mixed platform, Montagne Noire, France

Bulletin of the Geological Society of America

Volumn 120, Issue 7-8, 2008, Pages 962-975

  Álvaro, Jose Javier ^a,b   Bauluz, Blanca ^a   Subías, Ignacio ^a   Pierre, Catherine ^c   Vizcaïno, Daniel ^d  

^a UNIVERSITY OF ZARAGOZA   (Spain)

^b UNIV LILLE   (France)

^c UNIVERSITÉ PIERRE ET MARIE CURIE   (France)

^d NONE   (France)

Author keywords

Cambrian; Chemostratigraphy; Ordovician; West Gondwana

Indexed keywords

BIODEGRADATION; CARBONATION; CIRCUIT SIMULATION; ISOTOPES; LANTHANUM; LIME; LIMESTONE; STRATIGRAPHY; SULFUR COMPOUNDS;

CAMBRIANS; CARBON ISOTOPE EXCURSIONS; CHEMOSTRATIGRAPHY; NEGATIVE CARBON ISOTOPE EXCURSIONS; ORDOVICIAN; STRATIGRAPHIC ANALYSIS; TOTAL ORGANIC CARBON; WEST GONDWANA;

ORGANIC CARBON;

BIODEGRADATION; CAMBRIAN; CHEMOSTRATIGRAPHY; GONDWANA; METAMORPHISM; ORDOVICIAN; PALEOGEOGRAPHY; TOTAL ORGANIC CARBON;

EURASIA; EUROPE; FRANCE; MASSIF CENTRAL; MONTAGNE NOIRE; WESTERN EUROPE;

EID: 49749120243     PISSN: 00167606     EISSN: 00167606     Source Type: Journal    
DOI: 10.1130/B26243.1     Document Type: Article

References (95)

1. Aceñolaza, G.F., and Aceñolaza, F, 2000, The Cambrian System in northwest Argentina, in Aceñolaza, G.F., and Peralta, S., eds., Cambrian from the Southern Edge: Instituto Superior de Correlación Geológica, Miscelánea, v. 6, p. 46-50.
2. Ahlberg, R, and Bergström, J., 1998, The Cambrian of Scania, in Ahlberg, P., ed., Guide to excursions in Scania and Västergötland, Southern Sweden: Lund Publications in Geology, v. 141, p. 20-23.
3. Ahlberg, R, Axheimer, N., and Robison, R.A., 2007, Taxonomy of Ptychagnostus atavus: A key trilobite in defining a global stage boundary: Geobios, v. 40, 709-714.
4. Allen, J.R., and Matthews, R.K., 1982, Isotopic signature associated with early meteoric diagenesis: Sedimentology, v. 29, p. 791-817, doi: 10.1111/j. 1365-3091.1982. tb00085.x.
5. Álvaro, J.J., and Vizcaïno, D., 1998, Révision biostratigraphique du Cambrien moyen du versant méridional de la Montagne Noire (Languedoc, France): Bulletin de la Société Géologique de France, v. 169, p. 233-242.
6. Álvaro, J.J., Rouchy, J.M., Bechstädt, T., Boucot, A., Boyer, E, Debrenne, F., Moreno-Eiris, E., Perejón, A., and Vermin, E., 2000, Evaporitic constraints on the southward drifting of the western Gondwana margin during Early Cambrian times: Palaeogeography, Palaeoclimatology, Palaeoecology, v. 160, p. 105-122, doi: 10.1016/S0031-0182(00)00061-4.
7. Álvaro, J.J., Elicki, O., Geyer, G., Rushton, A.W.A., and Shergold, J.H., 2003a, Palaeogeographical controls on the Cambrian trilobite immigration and evolutionary patterns reported in the western Gondwana margin: Palaeogeography, Palaeoclimatology, Palaeoecology, v. 195, p. 5-35, doi: 10.1016/SO031-0182(03)00300-6.
8. Álvaro, J.J., González-Gómez, C., and Vizcaïno, D., 2003b, Paleogeographic patterns of the Cambrian-Ordovician transition in the southern Montagne Noire (France): Preliminary results: Bulletin de la Société Géologique de France, v. 174, p. 23-31.
9. Álvaro, J.J., Ferretti, A., González-Gómez, C., Serpagli, E., Tortello, M.F., Vecoli, M., and Vizcaïno, D., 2007, A review of the Late Cambrian (Furongian) palaeogeography in the western Mediterranean region, NW Gondwana: Earth-Science Reviews, v. 85, p. 47-81, doi: 10.1016/j.earscirev.2007.06.006.
10. Arthur, M.A., Schlanger, S.O., and Jenkyns, H.C., 1987, The Cenomanian-Turonian oceanic anoxic event: II. Palaeoceanographic controls on organic-matter production and preservation, in Fleet, A.J., and Brooks, J., eds., Marine Petroleum Source Rocks: Geological Society [London] Special Publication 26, p. 401-420.
11. Babcock, L.E., Rees, M.N., Robison, R.A., Lagenburg, E.S., and Peng, S.C., 2004, Potential global stratotype section and point for a Cambrian stage boundary defined by the first appearance of the trilobite Ptychagnostus atavus, Drum Mountains, Utah, USA: Geobios, v. 37, p. 149-158, doi: 10.1016/j.geobios.2003.03.007.
12. Babcock, L.E., Robison, R.A., Rees, M.N., Peng, S., and Saltzman, R., 2007, The global boundary stratotype and point (GSSP) of the Drumian Stage (Cambrian) in the Drum Mountains, Utah, USA: Episodes, v. 30, p. 84-94.
13. arb coupling, and the evolution of the Proterozoic carbon cycle: Geology, v. 32, p. 129-132, doi: 10.1130/ G19939.1.
14. Bauluz, B., Fernández-Nieto, C., and González López, J.M., 1998, Diagenesis-very low-grade metamorphism of clastic Cambrian and Ordovician sedimentary rocks in the Iberian Range (Spain): Clay Minerals, v. 33, p. 373-393, doi: 10.1180/000985598545697.
15. Berner, R.A., 1990, Atmospheric carbon dioxide over Phanerozoic time: Science, v. 249, p. 1382-1386, doi: 10.1126/science.249.4975.1382.
16. Bickert, T., Pätzold, J., Samtleben, C., and Munnecke, A., 1997, Paleoenvironmental changes in the Silurian indicated by stable isotopes in brachiopod shells from Gotland, Sweden: Geochimica et Cosmochimica Acta, v. 61, p. 2717-2730, doi: 10.1016/S0016-7037(97)00136-1.
17. Brand, U., 2004, C, O and Sr isotopes in Paleozoic carbonate components: An evaluation of original seawater and glaciations: Geological Society of America Bulletin, v. 110, p. 1499-1512.
18. Brasier, M.D., and Sukhov, S.S., 1998, The falling amplitude of carbon isotopic oscillations through the Lower to Middle Cambrian: Northern Siberian data: Canadian Journal of Earth Sciences, v. 35, p. 353-373, doi: 10.1139/cjes-35-4-353.
19. Brasier, M., Cowie, J., and Taylor, M., 1994, Decision on the Precambrian-Cambrian boundary stratotype: Episodes, v. 17, p. 95-100.
20. Brock, G.A., Engelbretsen, M.J., Jago, J.B., Kruse, P.D., Laurie, J.R., Shergold, J.H., Shi, G.R., and Sorauf, J.E., 2000, Palaeobiogeographic affinities of Australian Cambrian faunas: Memoir of the Association of Australasian Palaeontologists, v. 23, p. 1-61.
21. Bruckschen, P., Oesmann, S., and Veizer, J., 1999, Isotope stratigraphy of the European Carboniferous: Proxy signals for ocean chemistry, climate and tectonics: Chemical Geology, v. 161, p. 127-163, doi: 10.1016/S0009-2541(99)00084-4.
22. Calver, C.R., 2000, Isotope stratigraphy of the Ediacaran (Neoproterozoic III) of the Adelaide Rift Complex, Australia, and the overprint of water column stratification: Precambrian Research, v. 100, p. 121-150, doi: 10.1016/S0301-9268(99)00072-8.
23. Cocks, L.R.M., and Torsvik, T.H., 2002, Earth geography from 500 to 400 million years ago. A faunal and palaeomagnetic review: Journal of the Geological Society [London], v. 159, p. 631-644.
24. Cooper, R.A., and Nowlan, G.S., 1999, Proposed global stratotype section and point for the base of the Ordovician System: International Working Group on the Cambrian-Ordovician Boundary, March 1999, p. 1-28.
25. Craig, H., 1957, Isotopic standards for carbon and oxygen and correction factors for mass spectrometric analyses of carbon dioxide: Geochimica et Cosmochimica Acta, v. 12, p. 133-149, doi: 10.1016/0016-7037(57)90024-8.
26. Cramer, B.D., and Saltzman, M.R., 2007, Fluctuations in epeiric.sea carbonate production during Silurian positive carbon isotope excursions: A review of proposed palaeoceanographic models: Palaeogeography, Palaeoclimatology, Palaeoecology, v. 245, p. 37-45, doi: 10.1016/ j.palaeo.2006.02.027.
27. Foden, J., Elburg, M.A., Dougherty-Page, J., and Burtt, A., 2006, The timing of duration of the Delamerian orogeny: Correlation with the Ross orogen and implications for Gondwana assembly: The Journal of Geology, v. 114, p. 189-210, doi: 10.1086/499570.
28. Fortey, R.A., and Cocks, L.R.M., 2003, Palaeontological evidence bearing on global Ordovician-Silurian continental reconstructions: Earth-Science Reviews, v. 61, p. 245-307, doi: 10.1016/S0012-8252(02)00115-0.
29. Frey, M., 1987, Low Temperature Metamorphism: Blackie, Glasgow, 51 p.
30. 86Sr variation: Geochimica et Cosmochimica Acta, v. 55, p. 2911-2920, doi: 10.1016/0016-7037(91)90456-F.
31. Glumac, B., and Walker, K.R., 1998, A Late Cambrian positive carbon-isotope excursion in the southern Appalachians: Relation to biostratigraphy, sequence stratigraphy, environments of deposition, and diagenesis: Journal of Sedimentary Research, v. 68, p. 1212-1222.
32. Grossman, E.L., Zhang, C., and Yancey, T.E., 1991, Stable-isotope stratigraphy of brachiopods from Pennsylvanian shales in Texas: Geological Society of America Bulletin, v. 103, p. 953-965, doi: 10.1130/ 0016-7606(1991)103<0953:SISOBF>2.3.CO;2.
33. Hayes, J.M., Kaplan, I.R., and Wedeking, K.W., 1983, Precambrian organic geochemistry, preservation of the record, in Schopf, J.W., ed., The Earth's Earliest Biosphere: Its Origin and Evolution: Princeton, Princeton University Press, p. 93-134.
34. Hayes, J.M., Popp, B.N., Takigiku, R., and Johnson, M.W., 1989, An isotopic study of biogeochemical relationships between carbonates and organic carbon in the Greenhorn Formation: Geochimica et Cosmochimica Acta, v. 53, p. 2961-2972, doi: 10.1016/0016-7037(89)90172-5.
35. He, Z., 1995, Sedimentary Facies and Variation of Stable Isotope Composition of Upper Cambrian to Lower Ordovician Strata in Southern Missouri: Implications for the Origin of MVT Deposits and the Geochemical and Hydrological Features of Regional Ore-Forming Fluids [Ph.D. thesis]: Rolla, University of Missouri, 124 p.
36. Hesselbo, S.P., Gröcke, D.R., Jenkyns, H.C., Bjerrum, C.J., Farrimand, P., Morgans Bell, H.S., and Green, O.R., 2000, Massive dissociation of gas hydrate during a Jurassic oceanic anoxic event: Nature, v. 406, p. 392-395, doi: 10.1038/35019044.
37. Holser, W.S., 1997, Geochemical events documented in inorganic carbon isotopes: Palaeogeography, Palaeoclimatology, Palaeoecology, v. 132, p. 173-182, doi: 10.1016/S0031-0182(97)00070-9.
38. Howley, R.A., Rees, M.N., and Jiang, C.Q., 2006, Significance of Middle Cambrian mixed carbonate-siliciclastic units for global correlation, southern Nevada, USA: Palaeoworld, v. 15, p. 360-366, doi: 10.1016/ j.palwor.2006.10.010.
39. Jarvis, I., Carson, G.A., Cooper, M.K.E., Hart, M.B., Leary, P.N., Tocher, B.A., Horne, D., and Rosenfeld, A., 1988, Microfossil assemblages and the Cenomanian-Turonian (Late Cretaceous) oceanic anoxic event: Cretaceous Research, v. 9, p. 3-103, doi: 10.1016/ 0195-6671(88)90003-1.
40. Joachimski, M.M., 1997, Comparison of organic and inorganic isotope patterns across the Frasnian-Famennian boundary: Palaeogeography, Palaeoclimatology, Palaeoecology, v. 132, p. 133-145, doi: 10.1016/ S0031-0182(97)00051-5.
41. Kaufman, A.J., and Knoll, A.H., 1995, Neoproterozoic variations in the carbon isotopic composition of seawater: Stratigraphic and biogeochemical implications: Precambrian Research, v. 73, p. 27-49, doi: 10.1016/0301-9268(94)00070-8.
42. Kisch, H.J., 1991, Illite crystallinity: Recommendations on sample preparation, X-ray diffraction settings, and interlaboratory samples: Journal of Metamorphic Geology, v. 9, p. 665-670, doi: 10.1111/ j.1525-1314.1991.tb00556.x.
43. Knoll, A.H., Hayes, J.M., Kaufman, A.J., Swett, K., and Lambert, I.B., 1986, Secular variation in carbon isotope ratios from Upper Proterozoic successions of Svalbard and East Greenland: Nature, v. 321, p. 832-838, doi: 10.1038/321832a0.
44. Koch, P.L., Zachos, J.C., and Gingerich, P.D., 1992, Correlation between isotope records in marine and continental carbon reservoirs near the Palaeocene/Eocene boundary: Nature, v. 358, p. 319-322, doi: 10.1038/ 358319a0.
45. Kump, L.R., and Arthur, M.A., 1999, Interpreting carbon-isotope excursions: Carbonates and organic matter: Chemical Geology, v. 161, p. 181-198, doi: 10.1016/S0009-2541(99)00086-8.
46. 2 during the Late Ordovician: Palaeogeography, Palaeoclimatology, Palaeoecology, v. 152, p. 173-187, doi: 10.1016/S0031-0182(99)00046-2.
47. Landing, E., 1996, Avalon: Insular continent by the latest Precambrian, in Nance, R.D., and Thompson, M.D, eds., Avalonian and related Perigondwanan terranes of the circum-North Atlantic: Geological Society of America Special Paper 304, p. 29-63.
48. Magaritz, M., Krishnamurthy, R.V., and Holser, T., 1992, Parallel trends in organic and inorganic carbon isotopes across the Permian/Triassic boundary: American Journal of Science, v. 292, p. 727-739.
49. Mángano, M.G., Buatois, L.A., and Aceñolaza, G.F., 1996, Trace fossils from a Late Cambrian-Early Ordovician tide-dominated shelf (Santa Rosita Formation, northwest Argentina): Implications for ichnofacies models and shallow marine successions: Ichnos, v, 5, p. 53-88.
50. Marshall, J.D., 1992, Climatic and oceanographic isotope signals from the carbonate rock record and their preservation: Geological Magazine, v. 2, p. 143-160.
51. 13C stratigraphy through the early Aptian "Livello Selli" of the Alpine Tethys: Paleoceanography, v. 13, p. 530-545, doi: 10.1029/ 98PA01793.
52. Middleton, P.D., Marshall, J.D., and Brenchley, P.J., 1991, Evidence for isotopic changes associated with Late Ordovician glaciation from brachiopods and marine cements of central Sweden, in Baines, C.R., and Williams, S.E., eds., Advances in Ordovician Geology: Geological Survey of Canada Paper 90 (9), p. 313-323.
53. Miller, J.F., Ethington, R.L., Evans, K.R., Holmer, L.E., Coch, J.D., Popov, L.E., Repetski, J.E., Ripperdan, R.L., and Taylor, J.F., 2006, Proposed stratotype for the base of the highest Cambrian stage at the first appearance datum of Cordylodus undresi, Lawson Cow section, Utah, USA: Palaeoworld, v. 15, p. 384-405, doi: 10.1016/ j.palwor.2006.10.017.
54. Montañez, I.P., Osleger, D.A., Mack, L.E., and Musgrove, M., 2000, Evolution of the Sr and C isotope composition of Cambrian oceans: GSA Today, v. 10, no. 5, p. 1-7.
55. Munnecke, A., Samtleben, C.. and Bickert, T., 2003, The Ireviken Event in the Lower Silurian of Gotland, Sweden - Relation to similar Palaeozoic and Proterozoic events: Palaeogeography, Palaeoclimatology, Palaeoecology, v. 195, p. 99-124, doi: 10.1016/S0031-0182(03)00304-3.
56. Nysæther, E., Torsvik, T.H., Feist, R., Walderhang, H.J., and Eide, E.A., 2002, Ordovician palaeogeography with new palaeomagnetic data from the Montagne Noire (southern France): Earth and Planetary Science Letters, v. 203, p. 329-341, doi: 10.1016/S0012-821X(02)00847-6.
57. Öpik, A.A., 1966, The early Upper Cambrian crisis and its correlation: Journal and Proccedings of the Royal Society of New Wales, v. 100, p. 9-14.
58. Osleger, D.A., and Read, J.F., 1993, Comparative analysis of methods used to define eustatic variations in outcrop: Late Cambrian interbasinal sequence development: American Journal of Science, v. 293, p. 157-216.
59. Palmer, A.R., 1965, Trilobites of the Late Cambrian Pterocephaliid Biomere in the Great Basin, United States: U.S. Geological Survey Professional Paper 493, p. 1-105.
60. Palmer, A.R., 1984, The biomere problem: Evolution of an idea: Journal of Paleontology, v. 58, p. 599-611.
61. Pegel, T.V., 2000, Evolution of trilobite biofacies in Cambrian basins of the Siberian Platform: Journal of Paleontology, v. 74, p. 1000-1019, doi: 10.1666/0022- 3360(2000)074<1000:EOTBIC>2.0.CO;2.
62. Peng, S., and Robison, R.A., 2000, Agnostoid biostratigraphy across the middle-upper Cambrian boundary in Hunan, China: Palaeontological Society Memoir, v. 53, p. 1-104.
63. Peng, S.C., Babcock, L.E., Lin, H.L., Chen, Y.G., and Zhu, X.J., 2001, Potential global stratotype section and point for the base of an upper Cambrian series defined by the first appearance of the trilobite Glyptagnostus reticulatus, Hunan Province, China: Acta. Palaeontologica Sinica, v. 40, supplement, p. 151-172.
64. Peng, S.C., Babcock, L.E., Robison, R.A., Lin, H., Rees, M.N., arid Saltzman, M.R., 2004, Global standard stratotype-section and point (GSSP) of the Furongian Series and Paibian Stage (Cambrian): Lethaia, v. 37, p. 365-379, doi: 10.1080/00241160410002081.
65. Pratt, B.R., 1992, Trilobites of the Marjuman and Steptoean stages (Upper Cambrian), Rabbitkettle Formation, southern Mackenzie Mountains, northwest Canada: Palaeontographica. Canadiana, v. 9, p. 1-179.
66. Pratt, B.R., 1998, Probable predation on Upper Cambrian trilobites and its relevance for the extinction of soft-bodied Burgess Shale-type animals: Lethaia, v. 31, p. 73-88.
67. Qing, H., and Veizer, J., 1994, Oxygen and carbon isotope composition of Ordovician brachiopods: Implications for coeval seawater: Geochimica et Cosmochimica. Acta, v. 58, p. 4429-4442, doi: 10.1016/ 0016-7037(94)90345-X.
68. Racki, G., and Wignall, P., 2001, Eutrophication by decoupling of the marine biogeochemical cycles of C, N, and P: A mechanism for the Late Devonian mass extinction: Geology, v. 29, p. 469-470, doi: 10.1130/ 0091-76 13(2001)029<0469:EBDOTM>2.0.CO;2.
69. Rowell, A.J., and Brady, M.J., 1976, Brachiopods and biomeres: Brigham Young University Geology Studies, v. 23, p. 165-180.
70. Rushton, A.W.A., Owen, A.W., Owens, R.M., and Prigmore, J.K., 1999, British Cambrian to Ordovician Stratigraphy: Peterborough, Joint Nature Conservation Committee, Geological Conservation Review Series 18, xxi + 435 p.
71. Saltzman, M.R., 1999, Upper Cambrian carbonate platform evolution, Elvinia and Taenicephalus zones (pterocephaliid-ptychaspid biomere boundary), northwestern Wyoming: Journal of Sedimentary Research, v. 69, p. 926-938, doi: 10.1306/ D4268ABD-2B26-11D7-8648000102C1865D.
72. 13 C stratigraphy: A view from North America: Geology, v. 29, p. 671-674, doi: 10.1130/ 0091-7613(2001)029<0671:SCSAVF>2.0.CO;2.
73. 13C stratigraphy across the Silurian-Devonian transition in North America: Evidence for a perturbation of the global carbon cycle: Palaeogeography, Palaeoclimatology, Palaeoecology, v. 187, p. 83-100, doi: 10.1016/ S0031-0182(02)00510-2.
74. Saltzman, M.R., Runnegar, B., and Lohmann, K.C., 1998, Carbon isotope stratigraphy of Upper Cambrian (Steptoean Stage) sequences of the eastern Great Basin: Record of a global oceanographic event: Geological Society of America Bulletin, v. 110,p. 285-297, doi: 10. 1130/ 0016-7606(1998)110<0285:CISOUC>2.3.CO;2.
75. Saltzman, M.R., Ripperdan, R.L., Brasier, M.D., Lohmann, K.C., Robison, R.A., Chang, W.T., Peng, S., Ergaliev, E.K., and Runnegar, B., 2000, A global carbon isotope excursion (SPICE) during the Late Cambrian: Relation to trilobite extinctions, organic-matter burial and sea level: Palaeogeography, Palaeoclimatology, Palaeoecology, v. 162, p. 211-223, doi: 10.1016/S0031-0182(00)00128-0.
76. 13C) event and the Sauk II-Sauk III regression: New evidence from Laurentian basins in Utah, Iowa, and Newfoundland: Journal of Sedimentary Research, v. 74, p. 366-377, doi: 10.1306/120203740366.
77. Schrag, D.P., DePaolo, D.J., and Richter, F.M., 1995, Reconstructing past sea surface temperatures: Correcting for diagenesis of bulk marine carbonate: Geochimica et Cosmochimica Acta, v. 59, p. 2265-2278, doi: 10.1016/0016-7037(95)00105-9.
78. Schumacher, D., 1996, Hydrocarbon-induced alteration of soils and sediments, in Schumacher, D., and Abrams, M.A., eds., Hydrocarbon Migration and its Near-Surface Expression: American Association of Petroleum Geologists Memoir 66, p. 71-89.
79. Shergold, J.H., 1996, Cambrian, in Young, G.C., and Laurie, J.R., eds., An Australian Phanerozoic Timescale: Melbourne, Oxford University Press, p. 63-76.
80. Stitt, J.H., 1975, Adaptive radiation, trilobite paleoecology and extinction, Ptychaspid biomere, Late Cambrian of Oklahoma: Fossils and Strata, v. 4, p. 381-390.
81. Strauss, H., DesMarais, D.J., Hayes, J.M., and Summons, R.E., 1992, The carbon-isotope record, in Schopf, J.W., and Klein, C., eds., The Proterozoic Biosphere: A Multidisciplinary Study: Cambridge, Cambridge University Press, p. 117-128.
82. Thompson, R., 2003, Sedimentologic, Sequence Stratigraphic and Stable Isotopic Study of the Late Cambrian Conococheague Formation, Strasburg, VA [Ph.D. thesis]: Baltimore, University of Maryland, GEOL 394, Series, 31 p.
83. Veizer, J., Fritz, R, and Jones, B., 1986, Geochemistry of brachiopods: Oxygen and carbon isotopic records of Paleozoic oceans: Geochimica et Cosmochimica Acta, v. 50, p. 1679-1696, doi: 10.1016/ 0016-7037(86)90130-4.
84. Veizer, J., Bruckschen, P., Pawellek, F., Diener, A., Podlaba, O.G., Jasper, T., Korte, C., Carden, G.A.F, Strauss, H., Azmy, K., and Ala, D., 1997, Oxygen isotope evolution of Phanerozoic seawater: Palaeogeography, Palaeoclimatology, Palaeoecology, v. 132, p. 159-172, doi: 10.1016/S0031-0182(97)00052-7.
85. 18 evolution of Phanerozoic seawater: Chemical Geology, v. 161, p. 59-88, doi: 10.1016/S0009-2541(99)00081-9.
86. 2: Natural Variations from the Archean to the Present: American Geophysical Union, Geophysical Monograph Series 32, p. 455-468.
87. Vizcaïo, D., and Álvaro, J.J., 2003, Adequacy of the Lower Ordovician trilobite record in the southern Montague Noire (France): Biases for biodiversity documentation: Transactions of the Royal Society of Edinburgh, Earth Sciences, v. 93, p. 1-9.
88. 12C in lower Paleozoic brachiopods: Implications for the isotopic composition of sea water: Geochimica et Cosmochimica Acta, v. 56, p. 431-443, doi: 10.1016/0016-7037(92)90143-7.
89. Wang, W., Cao, C., and Wang, Y, 2004, The carbon isotope excursion on GSSP candidate section of Lopingian-Guadalupian boundary: Earth and Planetary Science Letters, v. 220, p. 57-67.
90. Warr, L.N., and Rice, A.H.N., 1994, Interlaboratory standardization and calibration of clay mineral crystallinity size data: Journal of Metamorphic Geology, v. 12, p. 141-152, doi: 10.1111/ j.1525-1314.1994.tb00010.x.
91. Weissert, H., Lini, A., Föllmi, K., and Kuhn, O., 1998, Correlation of Early Cretaceous carbon isotope stratigraphy and platform drowning events: A possible link?: Palaeogeography, Palaeoclimatology, Palaeoecology, v. 137, p. 189-203, doi: 10.1016/S0031-0182(97)00109-0.
92. org-curve from the Valanginian of DSDP Site 416: Terra Nova, v. 12, p. 289-294, doi: 10.1046/ j.1365-3121.2000.00312.x.
93. Yang, J., and Xu, S., 1997, The second-order sequence division and sea level fluctuation in Cambrian on the border of Sichuan, Guizhou and Hunan: Earth-Science Journal of China University of Geosciences, v. 22, p. 466-470.
94. Zhu, M.Y, Zhang, J.M., Li, GX, and Yang, A.H., 2004, Evolution of C isotopes in the Cambrian of China: Implications for Cambrian subdivision and trilobite mass extinctions: Geobios, v. 37, p. 287-301, doi: 10.1016/ j.geobios.2003.06.001.
95. Zhu, M.Y., Babcock, L.E., and Peng, S.C., 2006, Advances in Cambrian stratigraphy and paleontology: Integrating correlation techniques, palcobiology, taphonomy and paleoenviromnental reconstruction: Palaeoworld, v. 15, p. 217-222, doi: 10.1016/j.palwor.2006.10.016.