早三叠世海洋异常的碳-氮-硫同位素记录

宋虎跃; 童金南; 杜勇; 宋海军; 田力; 楚道亮

doi:10.3799/dqkx.2018.334

早三叠世海洋异常的碳-氮-硫同位素记录

doi: 10.3799/dqkx.2018.334

中国地质大学生物地质与环境地质国家重点实验室, 湖北武汉 430074

基金项目:

国家自然科学基金项目 41872033

安徽省国土资源科技项目 2016-K-5

湖北省自然科学基金项目 2017CFB610

国家自然科学基金项目 41402302

国家自然科学基金项目 41661134047

详细信息

作者简介:
宋虎跃(1986-), 男, 副教授, 主要从事古-中生代之交古海洋环境演变研究

中图分类号: P539.7
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- 被引次数: 0
出版历程
- 收稿日期: 2017-12-20
- 刊出日期: 2018-11-15

Large Perturbed Marine Carbon-Nitrogen-Sulfur Isotopes during Early Triassic

State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074, China

摘要

摘要: 早三叠世作为显生宙最大生物灭绝之后的一段特殊地质历史时期，不仅见证了海洋生物的迟缓复苏，而且记录了极其动荡的海洋环境变化，该时期异常的生物环境事件及其机制已经成为当前国际地质学者关注的重大科学问题之一.近些年来，研究学者在早三叠世的碳-氮-硫异常循环研究中取得了许多重要的进展，这对深入理解该时期的环境演变及其对生物复苏的影响十分重要.重点回顾近年来关于早三叠世古海洋碳-氮-硫循环方面的研究进展，对当前存在的科学问题及发展趋势进行分析和总结.
- 早三叠世 /
- 碳同位素 /
- 氮同位素 /
- 硫同位素 /
- 海洋缺氧 /
- 地层学
Abstract: Early Triassic oceans recorded the delayed biotic recovery and the large perturbed environments. Hence, the environmental events and their mechanism became one of the key scientific topics for the geological scientists. In recent years, researchers have made many significant progresses in the marine carbon-nitrogen-sulfur cycles of the Early Triassic, which are important for understanding the co-evolution between the biotic recovery and environmental changes. The progress, problem and future development in the researches of carbon-nitrogen-sulfur cycles during the Early Triassic have been reviewed and summarized.
- Early Triassic /
- carbon isotope /
- nitrogen isotope /
- sulfur isotope /
- ocean anoxia /
- stratigraphy

HTML全文

图 1 早三叠世碳同位素组成全球对比

δ¹³C_carb结果均相对于VPDB；碳同位素分别引自：华南，Payne et al.(2004)；意大利，Horacek et al.(2007a)；伊朗，Horacek et al.(2007b)；N代表碳同位素负偏事件，P代表碳同位素正漂事件

Fig. 1. Global correlation of the Early Triassic carbon isotope changes

下载: 全尺寸图片幻灯片

图 2 珠穆朗玛峰地区早三叠世全岩有机碳-氮同位素初步结果

未发表数据；δ¹³C_org结果均相对于VPDB；δ¹⁵N_TN结果均相对于空气中氮气；TN代表全岩总有机氮

Fig. 2. Early Triassic organic carbon-nitrogen isotope curves in the Everest area

下载: 全尺寸图片幻灯片

图 3 打讲、上关刀、下关刀剖面早三叠世δ³⁴S_CAS, δ¹³C_carb曲线

据Song et al.(2014)；δ¹³C_carb结果均相对于VPDB；δ³⁴S_CAS结果均相对于VCDT.C.=Clarkina; H.=Hindeodus parvus; I.s.=Isarcicella staeschi; I.i.=Isarcicella isarcica; Ns.=Neospathodus; Nv.= Novispathodus; T.=Triassospathodus; Cs.=Chiosella; Ni.=Nicoraella; Pg.=Paragondolella; Bv.=Budurovignathus

Fig. 3. Early Triassic δ³⁴S_CAS, δ¹³C_carb curves from Dajiang, Lower and Upper Guandao sections

下载: 全尺寸图片幻灯片

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