沉积过程中有机碳及<em>Globigerinoides ruber</em>氧、碳同位素变化特征&mdash;&mdash;以南海南部为例

李文宝; 王汝建; 万随

doi:10.14027/j.cnki.cjxb.2017.04.007

ISSN 1000-0550 CN 62-1038/P

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沉积过程中有机碳及Globigerinoides ruber氧、碳同位素变化特征——以南海南部为例

李文宝, 王汝建, 万随

文章导航 > 沉积学报 > 2017 > 35(4): 730-739

李文宝, 王汝建, 万随. 沉积过程中有机碳及Globigerinoides ruber氧、碳同位素变化特征——以南海南部为例[J]. 沉积学报, 2017, 35(4): 730-739. doi: 10.14027/j.cnki.cjxb.2017.04.007

引用本文:

李文宝, 王汝建, 万随. 沉积过程中有机碳及Globigerinoides ruber氧、碳同位素变化特征——以南海南部为例[J]. 沉积学报, 2017, 35(4): 730-739. doi: 10.14027/j.cnki.cjxb.2017.04.007

LI WenBao, WANG RuJian, WAN Sui. Changes of TOC and δ18O, δ13C from Globigerinoides ruber during the Deposition Process in the Southern South China Sea[J]. Acta Sedimentologica Sinica, 2017, 35(4): 730-739. doi: 10.14027/j.cnki.cjxb.2017.04.007

Citation:

LI WenBao, WANG RuJian, WAN Sui. Changes of TOC and δ¹⁸O, δ¹³C from Globigerinoides ruber during the Deposition Process in the Southern South China Sea[J]. Acta Sedimentologica Sinica, 2017, 35(4): 730-739. doi: 10.14027/j.cnki.cjxb.2017.04.007

引用本文:

Citation:

沉积过程中有机碳及Globigerinoides ruber氧、碳同位素变化特征——以南海南部为例

doi: 10.14027/j.cnki.cjxb.2017.04.007

1.
内蒙古农业大学水资源保护与利用自治区重点实验室, 呼和浩特 010018;
2.
同济大学海洋地质国家重点实验室, 上海 200092

基金项目: 国家自然科学基金项目（41406056）；内蒙古自治区自然科学基金项目（2012MS0612，2016MS0552）

详细信息

作者简介:
李文宝,男,1980年出生,博士,副教授,第四纪地质学,E-mail:tianshitd@126.com

中图分类号: P736.21

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Changes of TOC and δ¹⁸O, δ¹³C from Globigerinoides ruber during the Deposition Process in the Southern South China Sea

1.
Inner Mongolia Autonomous Region Key Laboratory of Water Resources Protecting and Utilization, Inner Mongolia Agricultural University, Hohhot 010018, China;
2.
State Key Laboratory of Marine Geology, Tongji University, Shanghai 200092, China

Funds: National Natural Science Foundation of China, No.41406056; Natural Science Foundation of Inner Mongolia, No. 2012MS0612, 2016MS0552

摘要

摘要: 由水体到沉积物，不同沉积阶段的沉积过程也有所不同。通过对比南海南部（SCS-S）水体沉降颗粒物、海底表层沉积物和岩芯柱状沉积物（上部3 m）中Globigerinoides ruber氧、碳同位素（δ¹⁸O、δ¹³C）值和有机碳（TOC）含量及堆积速率的变化，系统分析了TOC、δ¹⁸O、δ¹³C等环境演变指标参数在沉积过程中的变化特征。结果显示：1）整个沉积过程中，TOC及同位素等环境演变指标参数的变化情况并不一致。不过，由下层水体沉降到海底表层的过程中，TOC及堆积速率（分别由4.20%、0.38 g/（cm²·ka）下降到1.182%、0.039 g/（cm²·ka）、δ¹⁸O、δ¹³C值（分别偏重0.196 ‰、0.855 ‰）均出现了明显变化。而一旦形成表层沉积物并被埋藏覆盖形成海底沉积物层（以岩芯柱状沉积物代表）以后，在不考虑冰期—间冰期气候旋回的影响下，除TOC外，δ¹⁸O、δ¹³C值等则基本保持不变；2）不同沉积阶段，TOC含量变化与δ¹⁸O、δ¹³C值的相关性分析表明，岩芯柱状沉积物中TOC含量变化与δ¹⁸O、δ¹³C变化之间的相关性最为明显，特别是TOC含量与δ¹⁸O 变化间呈显著正相关（r=0.74），即由下层水体到表层沉积物这一沉降过程中，TOC含量与堆积速率的突变及其对应的底层水中溶解氧（O₂）、二氧化碳（CO₂）含量变化可能是诱导δ¹⁸O、δ¹³C大幅偏重的主要因素。因此，利用TOC等指标参数进行古环境变化分析时有必要考虑不同沉积过程的影响。
- Globigerinoides rubber /
- 同位素 /
- 有机碳（TOC） /
- 沉积过程 /
- 南海南部
Abstract: The ocean sediments are formed in surface water and finally preserved in sea floor. During this process, the sedimentary environment always changed. In this paper, the change characteristics of TOC(%), TOC flux and δ¹⁸O and δ¹³C values from Globigerinoides ruber during the deposition process had been discussed in detail, basing on analyzing the relationships among particulate matter, surface sediment and core sediment in Southern of South China Sea(SCS). Here, the results shown that:1) The different proxies, such as TOC(%), TOC flux and δ¹⁸O,δ¹³C, have different changes during the deposition process. Specially, all the values of TOC(%), TOC flux and δ¹⁸O,δ¹³C descended visibly during the deposition satge from deep water layers to sea floor. The value of TOC% and TOC flux descend from 4.20%, 0.38 g/(cm²·ka) to 1.182%, 0.039 g/(cm²·ka), respectively. The value of δ¹⁸O,δ¹³C descend from 3.298‰ and 0.431‰ to 2.923‰ and 1.461‰, respectively. Reversely, when the core sediment formed in sea floor, the value of δ¹⁸O,δ¹³C would become stable except TOC(%) and TOC flux; 2) The relationship between TOC(%) change and value of δ¹⁸O, δ¹³C become visibly when the core sediment formed. Specially, there are clearer coherence between TOC(%) and value of δ¹⁸O in core sediments than other sediment types. In other hand, the change of relationship between TOC(%) and value of δ¹⁸O and δ¹³C indicate that the dissolution of TOC might be one of important factors leads to change of δ¹⁸O and δ¹³C value. In one word, the change characteristics of TOC(%), TOC flux and δ¹⁸O, δ¹³C during different sedimentary stages must be considered when reconstruct the palaeoenvironment evolution history based on these proxies.
- Globigerinoides rubber /
- isotope /
- total organic carbon(TOC) /
- deposition process /
- southern of South China Sea

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[1]	侯明才, 杨田, 田景春, 蔡来星, 李晓芳, 何青, 余文强. 吉尔伯特型三角洲沉积过程与沉积模式 . 沉积学报, 2023, 41(5): 1281-1294. doi: 10.14027/j.issn.1000-0550.2022.084
[2]	王壮生, 林小兵, 范峻铭, 杨华童, 张萱, 贾伟. 陆相石膏赋存状态及沉积过程 . 沉积学报, 2023, 41(5): 1354-1365. doi: 10.14027/j.issn.1000-0550.2023.027
[3]	尹力, 冯文杰, 尹艳树, 雷诚, 徐庆岩, 何一鸣. 波浪作用下砂质滩坝的沉积过程与沉积模式 . 沉积学报, 2022, 40(5): 1393-1405. doi: 10.14027/j.issn.1000-0550.2021.147
[4]	谈明轩, 吴峰, 马皓然, 付奕霖, 张旭, 崔浩楠. 海底扇沉积相模式、沉积过程及其沉积记录的指示意义 . 沉积学报, 2022, 40(2): 435-449. doi: 10.14027/j.issn.1000-0550.2021.144
[5]	张明宇, 常鑫, 胡利民, 毕乃双, 王厚杰, 刘喜停. 东海内陆架有机碳的源—汇过程及其沉积记录 . 沉积学报, 2021, 39(3): 593-609. doi: 10.14027/j.issn.1000-0550.2020.080
[6]	朱筱敏, 谈明轩, 董艳蕾, 李维, 秦祎, 张自力. 当今沉积学研究热点讨论——第20届国际沉积学大会评述 . 沉积学报, 2019, 37(1): 1-16. doi: 10.14027/j.issn.1000-0550.2018.185
[7]	周锡强, 陈代钊, 刘牧, 胡建芳. 中国沉积学发展战略:沉积地球化学研究现状与展望 . 沉积学报, 2017, 35(6): 1293-1316. doi: 10.14027/j.cnki.cjxb.2017.06.020
[8]	程红光, 李心清, 黄思静, 王兵, 程建中. 腕足壳体与碳酸盐岩全岩中碳、氧、锶同位素差异 . 沉积学报, 2015, 33(1): 60-66. doi: 10.14027/j.cnki.cjxb.2015.01.006
[9]	. 南海表层沉积物与沉降颗粒物中有机碳的δ13C对比研究及其古环境再造意义 . 沉积学报, 2012, 30(2): 340-345.
[10]	叶先仁, 任建国, 陶明信, 王宗礼. 事件沉积及其周期性的氦同位素指示 . 沉积学报, 2003, 21(4): 640-647.
[11]	孙省利, 曾允孚. 西成矿化集中区热水沉积岩物质来源的同位素示踪及其意义 . 沉积学报, 2002, 20(1): 41-46.

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沉积过程中有机碳及Globigerinoides ruber氧、碳同位素变化特征——以南海南部为例

doi: 10.14027/j.cnki.cjxb.2017.04.007

1. 内蒙古农业大学水资源保护与利用自治区重点实验室, 呼和浩特 010018;

2. 同济大学海洋地质国家重点实验室, 上海 200092

基金项目: 国家自然科学基金项目（41406056）；内蒙古自治区自然科学基金项目（2012MS0612，2016MS0552）

作者简介:
李文宝,男,1980年出生,博士,副教授,第四纪地质学,E-mail:tianshitd@126.com

收稿日期: 2016-06-20
修回日期: 2016-09-04
刊出日期: 2017-08-10

中图分类号: P736.21

关键词:

Globigerinoides rubber /

同位素 /

有机碳（TOC） /

沉积过程 /

南海南部

摘要: 由水体到沉积物，不同沉积阶段的沉积过程也有所不同。通过对比南海南部（SCS-S）水体沉降颗粒物、海底表层沉积物和岩芯柱状沉积物（上部3 m）中Globigerinoides ruber氧、碳同位素（δ¹⁸O、δ¹³C）值和有机碳（TOC）含量及堆积速率的变化，系统分析了TOC、δ¹⁸O、δ¹³C等环境演变指标参数在沉积过程中的变化特征。结果显示：1）整个沉积过程中，TOC及同位素等环境演变指标参数的变化情况并不一致。不过，由下层水体沉降到海底表层的过程中，TOC及堆积速率（分别由4.20%、0.38 g/（cm²·ka）下降到1.182%、0.039 g/（cm²·ka）、δ¹⁸O、δ¹³C值（分别偏重0.196 ‰、0.855 ‰）均出现了明显变化。而一旦形成表层沉积物并被埋藏覆盖形成海底沉积物层（以岩芯柱状沉积物代表）以后，在不考虑冰期—间冰期气候旋回的影响下，除TOC外，δ¹⁸O、δ¹³C值等则基本保持不变；2）不同沉积阶段，TOC含量变化与δ¹⁸O、δ¹³C值的相关性分析表明，岩芯柱状沉积物中TOC含量变化与δ¹⁸O、δ¹³C变化之间的相关性最为明显，特别是TOC含量与δ¹⁸O 变化间呈显著正相关（r=0.74），即由下层水体到表层沉积物这一沉降过程中，TOC含量与堆积速率的突变及其对应的底层水中溶解氧（O₂）、二氧化碳（CO₂）含量变化可能是诱导δ¹⁸O、δ¹³C大幅偏重的主要因素。因此，利用TOC等指标参数进行古环境变化分析时有必要考虑不同沉积过程的影响。

English Abstract

Changes of TOC and δ¹⁸O, δ¹³C from Globigerinoides ruber during the Deposition Process in the Southern South China Sea

1. Inner Mongolia Autonomous Region Key Laboratory of Water Resources Protecting and Utilization, Inner Mongolia Agricultural University, Hohhot 010018, China;

2. State Key Laboratory of Marine Geology, Tongji University, Shanghai 200092, China

Funds: National Natural Science Foundation of China, No.41406056; Natural Science Foundation of Inner Mongolia, No. 2012MS0612, 2016MS0552

Received Date: 2016-06-20
Rev Recd Date: 2016-09-04
Publish Date: 2017-08-10

Keywords:

Abstract: The ocean sediments are formed in surface water and finally preserved in sea floor. During this process, the sedimentary environment always changed. In this paper, the change characteristics of TOC(%), TOC flux and δ¹⁸O and δ¹³C values from Globigerinoides ruber during the deposition process had been discussed in detail, basing on analyzing the relationships among particulate matter, surface sediment and core sediment in Southern of South China Sea(SCS). Here, the results shown that:1) The different proxies, such as TOC(%), TOC flux and δ¹⁸O,δ¹³C, have different changes during the deposition process. Specially, all the values of TOC(%), TOC flux and δ¹⁸O,δ¹³C descended visibly during the deposition satge from deep water layers to sea floor. The value of TOC% and TOC flux descend from 4.20%, 0.38 g/(cm²·ka) to 1.182%, 0.039 g/(cm²·ka), respectively. The value of δ¹⁸O,δ¹³C descend from 3.298‰ and 0.431‰ to 2.923‰ and 1.461‰, respectively. Reversely, when the core sediment formed in sea floor, the value of δ¹⁸O,δ¹³C would become stable except TOC(%) and TOC flux; 2) The relationship between TOC(%) change and value of δ¹⁸O, δ¹³C become visibly when the core sediment formed. Specially, there are clearer coherence between TOC(%) and value of δ¹⁸O in core sediments than other sediment types. In other hand, the change of relationship between TOC(%) and value of δ¹⁸O and δ¹³C indicate that the dissolution of TOC might be one of important factors leads to change of δ¹⁸O and δ¹³C value. In one word, the change characteristics of TOC(%), TOC flux and δ¹⁸O, δ¹³C during different sedimentary stages must be considered when reconstruct the palaeoenvironment evolution history based on these proxies.

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沉积过程中有机碳及Globigerinoides ruber氧、碳同位素变化特征——以南海南部为例

doi: 10.14027/j.cnki.cjxb.2017.04.007

作者简介:
李文宝,男,1980年出生,博士,副教授,第四纪地质学,E-mail:tianshitd@126.com

计量

Changes of TOC and δ¹⁸O, δ¹³C from Globigerinoides ruber during the Deposition Process in the Southern South China Sea

计量

目录

沉积过程中有机碳及Globigerinoides ruber氧、碳同位素变化特征——以南海南部为例

doi: 10.14027/j.cnki.cjxb.2017.04.007

1. 内蒙古农业大学水资源保护与利用自治区重点实验室, 呼和浩特 010018;

2. 同济大学海洋地质国家重点实验室, 上海 200092

作者简介:
李文宝,男,1980年出生,博士,副教授,第四纪地质学,E-mail:tianshitd@126.com

English Abstract

Changes of TOC and δ¹⁸O, δ¹³C from Globigerinoides ruber during the Deposition Process in the Southern South China Sea

1. Inner Mongolia Autonomous Region Key Laboratory of Water Resources Protecting and Utilization, Inner Mongolia Agricultural University, Hohhot 010018, China;

2. State Key Laboratory of Marine Geology, Tongji University, Shanghai 200092, China

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沉积过程中有机碳及Globigerinoides ruber氧、碳同位素变化特征——以南海南部为例

doi: 10.14027/j.cnki.cjxb.2017.04.007

作者简介: 李文宝,男,1980年出生,博士,副教授,第四纪地质学,E-mail:tianshitd@126.com

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Changes of TOC and δ18O, δ13C from Globigerinoides ruber during the Deposition Process in the Southern South China Sea

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出版历程

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沉积过程中有机碳及Globigerinoides ruber氧、碳同位素变化特征——以南海南部为例

doi: 10.14027/j.cnki.cjxb.2017.04.007

1. 内蒙古农业大学水资源保护与利用自治区重点实验室, 呼和浩特 010018; 2. 同济大学海洋地质国家重点实验室, 上海 200092

作者简介: 李文宝,男,1980年出生,博士,副教授,第四纪地质学,E-mail:tianshitd@126.com

English Abstract

Changes of TOC and δ18O, δ13C from Globigerinoides ruber during the Deposition Process in the Southern South China Sea

1. Inner Mongolia Autonomous Region Key Laboratory of Water Resources Protecting and Utilization, Inner Mongolia Agricultural University, Hohhot 010018, China; 2. State Key Laboratory of Marine Geology, Tongji University, Shanghai 200092, China

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联系我们

作者简介:
李文宝,男,1980年出生,博士,副教授,第四纪地质学,E-mail:tianshitd@126.com

Changes of TOC and δ¹⁸O, δ¹³C from Globigerinoides ruber during the Deposition Process in the Southern South China Sea

1. 内蒙古农业大学水资源保护与利用自治区重点实验室, 呼和浩特 010018;

2. 同济大学海洋地质国家重点实验室, 上海 200092

作者简介:
李文宝,男,1980年出生,博士,副教授,第四纪地质学,E-mail:tianshitd@126.com

Changes of TOC and δ¹⁸O, δ¹³C from Globigerinoides ruber during the Deposition Process in the Southern South China Sea

1. Inner Mongolia Autonomous Region Key Laboratory of Water Resources Protecting and Utilization, Inner Mongolia Agricultural University, Hohhot 010018, China;

2. State Key Laboratory of Marine Geology, Tongji University, Shanghai 200092, China