Application of methane clumped isotope approach in natural abiotic methane reservoirs

甲烷团簇同位素方法在天然非生物甲烷储层中的应用

基本信息

批准号：
22K14134
负责人：
張乃忠
金额：
$ 2.83万
依托单位：
Tokyo Institute of Technology
依托单位国家：
日本
项目类别：
Grant-in-Aid for Early-Career Scientists
财政年份：
2022
资助国家：
日本
起止时间：
2022-04-01 至 2024-03-31
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-22K14134/
关键词：
Biodegradation Abiotic methane Mud volcano Clumped isotope methane clumped isotope mud volcano serpentinization

项目摘要

To better constrain the origins of natural hydrocarbon gases, we have applied the novel analytical technique, i.e., methane clumped isotope approach, in different types of mud volcanos across the Japanese archipelago. We have conducted multiple field trips to collected emitted gases from mud volcanos and/or surface seeps in (1) Tokamachi area (Gamo, Murono and Kusozu), and (2) Goshogake area.By combination of methane clumped isotope analysis and other geochemical approaches, such as bulk carbon isotope compositions and concentrations of alkanes and CO2, position specific isotope analysis of propane, we have successfully constrained the contribution of microbial activity (biodegradation process) in Tokamachi-type mud volcanos. The progresses have been presented at EGU2023 conference and will be submitted to an international journal soon.In the coming year, we will mainly focus on its application in Goshogake-type mud volcanos, in which hydrocarbons have been assumed as considerately contributed from abiotic source.

为了更好地限制天然碳氢化合物气体的起源，我们应用了新型的分析技术，即，在日本群岛的不同类型的泥土中，甲烷块状同位素方法。 We have conducted multiple field trips to collected emitted gases from mud volcanos and/or surface seeps in (1) Tokamachi area (Gamo, Murono and Kusozu), and (2) Goshogake area.By combination of methane clumped isotope analysis and other geochemical approaches, such as bulk carbon isotope compositions and concentrations of alkanes and CO2, position specific isotope analysis of propane, we已经成功限制了Tokamachi-Type泥土中微生物活性（生物降解过程）的贡献。这些进展已在EGU2023会议上提出，并将很快提交国际期刊。来年，我们将主要关注其在Goshogake型泥土中的应用，在该火山中，已将碳氢化合物被认为是从非生物来源贡献的。

项目成果

期刊论文数量（4）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Understanding the sources and sinks of methane using paired clumped isotope approach

使用成对簇同位素方法了解甲烷的来源和汇

DOI：
发表时间：
2022
期刊：
影响因子：
0
作者：
張乃忠;関根康人;中川麻悠子;ジルベルトアレキシー;松本良;吉田尚弘
通讯作者：
吉田尚弘

Microbial activity at different types of mud volcanos in Japan: an insight from methane clumped isotope signatures

日本不同类型泥火山的微生物活动：来自甲烷聚集同位素特征的见解

DOI：
发表时间：
2022
期刊：
影响因子：
0
作者：
Naizhong Zhang;Alexis Gilbert;Mayuko Nakagawa;Koudai Taguchi;Keita Yamada
通讯作者：
Keita Yamada

Abiotic methane formation in nature: information from clumped isotope analysis of laboratory synthesized methane

自然界中非生物甲烷的形成：实验室合成甲烷的簇同位素分析信息

DOI：
发表时间：
2022
期刊：
影响因子：
0
作者：
Naizhong Zhang;Yasuhito Sekine;Keita Yamada;Alexis Gilbert;Mayuko Nakagawa and Naohiro Yoshida
通讯作者：
Mayuko Nakagawa and Naohiro Yoshida

Methane clumped isotope signatures and microbial activity: a case study from two mud volcanos in central Japan

甲烷聚集同位素特征和微生物活动：日本中部两座泥火山的案例研究