主题：【已应助】求助英文文献，谢谢啦！

【序号】：1
【作者】：Xuelei Chu, Tonggang Zhang, Qirui Zhang, Timothy W. Lyons
【题名】：Sulfur and carbon isotope records from 1700 to 800 Ma carbonates of the Jixian section, northern China: Implications for secular isotope variations in Proterozoic seawater and relationships to global supercontinental events
【刊名】：Geochimica et Cosmochimica Acta
【年、卷、期、起止页码】:Volume 71, Issue 19, 1 October 2007, Pages 4668–4692
【全文链接】：http://www.sciencedirect.com/science/article/pii/S0016703707004346

【序号】：2
【作者】：R.J Newton, E.L Pevitt, P.B Wignall, S.H Bottrell
【题名】：Large shifts in the isotopic composition of seawater sulphate across the Permo–Triassic boundary in northern Italy
【刊名】：Earth and Planetary Science Letters
【年、卷、期、起止页码】:Volume 218, Issues 3–4, 15 February 2004, Pages 331–345
【全文链接】：http://www.sciencedirect.com/science/article/pii/S0012821X03006769

【序号】：3
【作者】：P. Gorjan, K. Kaiho, T. Kakegawa, S. Niitsuma, Z.Q. Chen, Y. Kajiwara, A. Nicora
【题名】：Paleoredox, biotic and sulfur-isotopic changes associated with the end-Permian mass extinction in the western Tethys
【刊名】：Chemical Geology
【年、卷、期、起止页码】:Volume 244, Issues 3–4, 15 October 2007, Pages 483–492
【全文链接】：http://www.sciencedirect.com/science/article/pii/S000925410700318X

【序号】：4
【作者】：Benjamin C. Gill, Timothy W. Lyons, Tracy D. Frank
【题名】：Behavior of carbonate-associated sulfate during meteoric diagenesis and implications for the sulfur isotope paleoproxy
【刊名】：Geochimica et Cosmochimica Acta
【年、卷、期、起止页码】:Volume 72, Issue 19, 1 October 2008, Pages 4699–4711
【全文链接】：http://www.sciencedirect.com/science/article/pii/S0016703708004080

【序号】：5
【作者】：Kunio Kaiho, Yoshimichi Kajiwara, Zhong-Qiang Chen, Paul Gorjan
【题名】：A sulfur isotope event at the end of the Permian
【刊名】：Chemical Geology
【年、卷、期、起止页码】:Volume 235, Issues 1–2, 30 November 2006, Pages 33–47
【全文链接】：http://www.sciencedirect.com/science/article/pii/S0009254106002786