{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,26]],"date-time":"2025-11-26T16:11:34Z","timestamp":1764173494544,"version":"3.28.0"},"reference-count":38,"publisher":"Geological Society of London","issue":"1","license":[{"start":{"date-parts":[[2002,1,1]],"date-time":"2002-01-01T00:00:00Z","timestamp":1009843200000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-002"}],"content-domain":{"domain":["www.lyellcollection.org"],"crossmark-restriction":true},"short-container-title":["JGS"],"published-print":{"date-parts":[[2002,1]]},"abstract":"<jats:p>\n            A magnetostratigraphic investigation of the Permian Emeishan LIP (large igneous province) was carried out on a composite section in Ebian County, close to the type area in Sichuan, SW China. The main succession of twelve flows (175\u2009m thick) carries a normal polarity whilst the one reliable site from the overlying 30\u2009m thick volcanic waning sequence is marked by a reverse polarity. The data enable a correlation to be proposed with an Emeishan Basalt sequence in western Guizhou,\n            <jats:italic>c.<\/jats:italic>\n            \u2008400\u2009km to the SE. From our knowledge of the geomagnetic field's reversal behaviour during the Permian, it suggests that the main lava pile along the eastern half of the Emeishan Basalt outcrop belt was erupted within a half to one million years. Using magnetobiostratigraphic data from the adjacent South China platform, the normal polarity magnetozone is correlated with the normal polarity chron associated with the upper part of the Maokou Limestones. Constrained by conodont data, the main Emei Basalts appear to be at least two biozones older (1\u20131.5\u2009Ma) than the Mid\u2013Late Permian boundary. It is possible, however, that the Emei Basalt waning zone sequence, which represents an explosive volcanic phase, might be coeval with the \u2018end-Guadalupian\u2019 biotic crisis. Thus arguments implicating Emei Basalt volcanism as the causal mechanism behind this major global event have to accommodate the new relative-age constraints.\n          <\/jats:p>","DOI":"10.1144\/0016-764901086","type":"journal-article","created":{"date-parts":[[2008,10,17]],"date-time":"2008-10-17T17:35:46Z","timestamp":1224264946000},"page":"21-29","update-policy":"http:\/\/dx.doi.org\/10.1144\/crossmark-policy","source":"Crossref","is-referenced-by-count":117,"title":["Emeishan Basalts (SW China) and the \u2018end-Guadalupian\u2019 crisis: magnetobiostratigraphic constraints"],"prefix":"10.1144","volume":"159","author":[{"given":"JASON R.","family":"ALI","sequence":"first","affiliation":[{"name":"1Department of Earth Sciences, University of Hong Kong, Pokfulam Road, Hong Kong, P.R. China (e-mail: jrali@hku.hk)"}]},{"given":"GARY M.","family":"THOMPSON","sequence":"additional","affiliation":[{"name":"1Department of Earth Sciences, University of Hong Kong, Pokfulam Road, Hong Kong, P.R. China (e-mail: jrali@hku.hk)"},{"name":"2Beppu Geothermal Institute, Kyoto University, Noguchibaru, Beppu, Oita, 874-0903, Japan"}]},{"given":"XIEYAN","family":"SONG","sequence":"additional","affiliation":[{"name":"1Department of Earth Sciences, University of Hong Kong, Pokfulam Road, Hong Kong, P.R. China (e-mail: jrali@hku.hk)"},{"name":"3Centre for Analyses and Research, Chengdu University of Technology, Chengdu, 610059, Sichuan, P.R. China"}]},{"given":"YUNLIANG","family":"WANG","sequence":"additional","affiliation":[{"name":"3Centre for Analyses and Research, Chengdu University of Technology, Chengdu, 610059, Sichuan, P.R. China"}]}],"member":"1881","published-online":{"date-parts":[[2022,4,6]]},"reference":[{"key":"e_1_3_2_1_1","unstructured":"1991. [Regional Geology of Sichuan Province]. Geological Memoir Series 23 Geological Press Beijing [in Chinese]."},{"key":"e_1_3_2_2_1","doi-asserted-by":"crossref","unstructured":"Anderson D.L. Zhang Y.S. & Tanimoto T. 1992. Plume heads continental lithosphere flood basalts and tomography In: Storey B.C. Alabaster T. & Pankhurst R.J. (eds) Magmatism and the causes of continental break-up. Geological Society London Special Publications 68 99\u2013124.","DOI":"10.1144\/GSL.SP.1992.068.01.07"},{"key":"e_1_3_2_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/0012-821X(90)90072-6"},{"key":"e_1_3_2_4_1","doi-asserted-by":"crossref","unstructured":"Chung S.L. Jahn-B M. W G.Y. Lo C.H. & Cong B. 1998. The Emeishan flood basalt in SW China; a mantle plume initiation model and its connection with continental breakup and mass extinction at the Permian-Triassic boundary In: Flower Mf.J. Chung S.L. Lo C.H. & Lee T.L. (eds) Mantle dynamics and plate interactions in East Asia. AGU Geodynamics Series 27 47\u201358.","DOI":"10.1029\/GD027p0047"},{"key":"e_1_3_2_5_1","unstructured":"Courtillot V. 1999. Evolutionary Catastrophes. Cambridge University Press Cambridge."},{"key":"e_1_3_2_6_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0012-821X(98)00282-9"},{"key":"e_1_3_2_7_1","doi-asserted-by":"publisher","DOI":"10.1098\/rspa.1953.0064"},{"key":"e_1_3_2_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/0031-9201(94)02993-L"},{"key":"e_1_3_2_9_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0012-821X(98)00169-1"},{"key":"e_1_3_2_10_1","first-page":"1","article-title":"On the Lopingian Series of the Permian System","volume":"9","year":"1998","unstructured":"Jin, Y., Mei, S., Wang, W., Wang, X., Shen, S., Shang, Q. & Chen, Z. 1998. On the Lopingian Series of the Permian System, Palaeoworld, 9, 1\u201319.","journal-title":"Palaeoworld"},{"key":"e_1_3_2_11_1","doi-asserted-by":"publisher","DOI":"10.1130\/0091-7613(1992)020<0891:LIPSOP>2.3.CO;2"},{"key":"e_1_3_2_12_1","doi-asserted-by":"publisher","DOI":"10.1016\/0012-821X(95)00205-Q"},{"key":"e_1_3_2_13_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-246X.1980.tb02601.x"},{"key":"e_1_3_2_14_1","doi-asserted-by":"publisher","DOI":"10.1080\/00206819409465508"},{"key":"e_1_3_2_15_1","unstructured":"Liu B. & Xu X. 1994. Atlas of the lithofacies and paleogeography of South China (Sinian-Triassic). Science Press Beijing."},{"key":"e_1_3_2_16_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-246X.1993.tb03918.x"},{"key":"e_1_3_2_17_1","doi-asserted-by":"crossref","first-page":"357","DOI":"10.1098\/rsta.1981.0026","article-title":"The direction of the Earth's magnetic field at London, 1570\u20131975","volume":"299","year":"1981","unstructured":"Malin, S.R.C. & Bullard, E. 1981. The direction of the Earth's magnetic field at London, 1570\u20131975, Philosophical Transactions of the Royal Society, London, A299, 357\u2013423.","journal-title":"Philosophical Transactions of the Royal Society, London"},{"key":"e_1_3_2_18_1","first-page":"163","article-title":"Fragmentation of Asia in the Permian","volume":"239","year":"1981","unstructured":"McElhinny, M.W., Embleton, B.J.J., Ma, X. & Zhang, Z. 1981. Fragmentation of Asia in the Permian, Nature, 239, 163\u2013169.","journal-title":"Nature"},{"key":"e_1_3_2_19_1","first-page":"53","article-title":"Conodont succession of the Guadalupian-Lopingian boundary strata in Laibin of Guangxi, China and west Texas, USA","volume":"9","year":"1998","unstructured":"Mei, S., Jin, Y. & Wardlow, B.R. 1998. Conodont succession of the Guadalupian-Lopingian boundary strata in Laibin of Guangxi, China and west Texas, USA, Palaeoworld, 9, 53\u201376.","journal-title":"Palaeoworld"},{"key":"e_1_3_2_20_1","doi-asserted-by":"publisher","DOI":"10.1130\/MEM132-p7"},{"key":"e_1_3_2_21_1","doi-asserted-by":"crossref","unstructured":"Opdyke N.D. 1995. Magnetostratigraphy of Permo-Carboniferous time In: Berggren W.A. Kent D.V. Aubry M.-P. & Hardenbol J. (eds) Geochronology time scales and stratigraphic correlation: framework for an historical geology. SEPM Special Publications 54 271\u2013274.","DOI":"10.2110\/pec.95.04.0041"},{"key":"e_1_3_2_22_1","doi-asserted-by":"publisher","DOI":"10.1126\/science.246.4926.103"},{"key":"e_1_3_2_23_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0012-821X(98)00241-6"},{"key":"e_1_3_2_24_1","first-page":"14","article-title":"Correlation of Permian deposits in China","volume":"4","year":"1994","unstructured":"Sheng, J. & Jin, Y. 1994. Correlation of Permian deposits in China, Palaeoworld, 4, 14\u2013113.","journal-title":"Palaeoworld"},{"key":"e_1_3_2_25_1","first-page":"1340","article-title":"A double mass extinction at the end of the Paleozoic Era","volume":"291","year":"1994","unstructured":"Stanley, S.M. & Yang, X. 1994. A double mass extinction at the end of the Paleozoic Era, Science, 291, 1340\u20131344.","journal-title":"Science"},{"key":"e_1_3_2_26_1","doi-asserted-by":"publisher","DOI":"10.1046\/j.1365-246x.1998.00634.x"},{"key":"e_1_3_2_27_1","doi-asserted-by":"publisher","DOI":"10.1144\/jgs.158.4.593"},{"key":"e_1_3_2_28_1","doi-asserted-by":"publisher","DOI":"10.1016\/0040-1951(90)90116-P"},{"key":"e_1_3_2_29_1","unstructured":"Van der Voo R. 1993. Paleomagnetism of the Atlantic Tethys and Iapetus Oceans. R. Paleomagnetism of the Atlantic Tethys and Iapetus Oceans. Cambridge University Press Cambridge."},{"key":"e_1_3_2_30_1","doi-asserted-by":"publisher","DOI":"10.1016\/0040-1951(93)90168-J"},{"key":"e_1_3_2_31_1","doi-asserted-by":"publisher","DOI":"10.1080\/002411600750053853"},{"key":"e_1_3_2_32_1","unstructured":"Wang Y. Li J. Zhou R. Wang W. Tong C. & Xiong S. 1987. [Principle on trace element geochemistry of igneous rocks and its applications and demonstration of the petrogenesis of the Emeishan basalts]. [Principle on trace element geochemistry of igneous rocks and its applications and demonstration of the petrogenesis of the Emeishan basalts.] Chengdu Science and Technology Publishing House Chengdu China [in Chinese]."},{"key":"e_1_3_2_33_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0012-8252(00)00037-4"},{"key":"e_1_3_2_34_1","doi-asserted-by":"publisher","DOI":"10.1029\/JB094iB06p07685"},{"key":"e_1_3_2_35_1","doi-asserted-by":"publisher","DOI":"10.1029\/95JB01585"},{"key":"e_1_3_2_36_1","doi-asserted-by":"crossref","unstructured":"Zhao X. & Coe R.S. 1989. Tectonics implications of Permo-Triassic results from North and South China In: Hillhouse J.W. (ed.) Deep Structure and past kinematics of accreted terranes. AGU Geophysical Monographs 5 267\u2013283.","DOI":"10.1029\/GM050p0267"},{"key":"e_1_3_2_37_1","doi-asserted-by":"publisher","DOI":"10.1080\/08120099608728285"},{"key":"e_1_3_2_38_1","unstructured":"Zhou Mf. Malpas J. Song X.Y. Robinson P.T. Kennedy A.K. Sun M. Thompson G. Yan D. & Zhang C.J. 2001. SHRIMP zircon geochronology of the Emeishan large igenous province (SW China): implications for double mass extinctions in the Late Permian Eleventh Goldschmidt Conference .Virginia"}],"container-title":["Journal of the Geological Society"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.lyellcollection.org\/doi\/pdf\/10.1144\/0016-764901086","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2024,11,19]],"date-time":"2024-11-19T11:30:14Z","timestamp":1732015814000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.lyellcollection.org\/doi\/10.1144\/0016-764901086"},"secondary":[{"URL":"https:\/\/geoscienceworld.org\/jgs\/article-lookup?doi=10.1144\/0016-764901086","label":"geoscienceworld"}]},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2002,1]]},"references-count":38,"journal-issue":{"issue":"1","published-online":{"date-parts":[[2007,5,16]]},"published-print":{"date-parts":[[2002,1]]}},"alternative-id":["10.1144\/0016-764901086"],"URL":"https:\/\/doi.org\/10.1144\/0016-764901086","relation":{},"ISSN":["0016-7649","2041-479X"],"issn-type":[{"type":"print","value":"0016-7649"},{"type":"electronic","value":"2041-479X"}],"subject":[],"published":{"date-parts":[[2002,1]]},"assertion":[{"value":"2001-06-05","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2001-08-20","order":2,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2022-04-06","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}