Himalayan uplift impacts on methane flares

喜马拉雅隆起对甲烷耀斑的影响

• 批准号: 15F15029
• 负责人: 川幡 穂高
• 金额: $ 1.47万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for JSPS Fellows
• 财政年份: 2015
• 资助国家: 日本
• 起止时间: 2015-10-09 至 2018-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-15F15029/
• 关键词: organic carbon; organic matter; total nitrogen; shrubs; woody plants; herbaceous plants; バングラデシュ; ヒマラヤ; 風化; 河川; 堆積物; 土壌; 有機物; 無機分析; 有機分析

Sediments from the Bay of Bengal were measured for elemental, n-alkanes, and stable carbon (δ13C) and nitrogen (δ15Ntot) isotopic compositions to examine the gas hydrate reservoir systems in the oceanic region. The TOC, C/N ratio and isotopic compositions of the studied sediments suggest a mixture of marine and terrestrial derived organic matter. The negative δ13C values also indicate gas hydrate deposits of microbial methane dominant. Sediment accumulation rate and TOC are likely controlled by high crustal materials input in response to uplift of the Himalaya.

测量了孟加拉湾沉积物的元素、正构烷烃、稳定碳 (δ13C) 和氮 (δ15Ntot) 同位素组成，以检查海洋区域的天然气水合物储层系统的 TOC、C/N 比和同位素组成。研究的沉积物表明海洋和陆地有机物的混合物，负 δ13C 值也表明微生物甲烷的天然气水合物沉积物。沉积物积累速率和主要 TOC 可能受喜马拉雅山隆起引起的高地壳物质输入的控制。

项目成果

Geochemical implications of provenance and chemical weathering in the major river sediments of Myanmar and Thailand

缅甸和泰国主要河流沉积物来源和化学风化的地球化学意义

• 发表时间: 2017
• 作者: Hossain H. M.;川幡 穂高;Roser Barry;三瓶 良和;眞中 卓也;大谷 壮矢
• 通讯作者: 大谷 壮矢

Geochemical characteristics of organic matter in the Andaman Sea sediments: Implications for source, paleovegetation and paleoclimate changes

安达曼海沉积物中有机质的地球化学特征：对来源、古植被和古气候变化的影响

• 发表时间: 2016
• 作者: Zakir Hossain;Hodaka Kawahata
• 通讯作者: Hodaka Kawahata

Geochemical characteristics of modern river sediments in Myanmar and Thailand: Implications for provenance and weathering

缅甸和泰国现代河流沉积物的地球化学特征：对物源和风化的影响

• DOI: 10.1016/j.chemer.2017.07.005
• 发表时间: 2017
• 作者: Hossain H.M. Zakir;Kawahata Hodaka;Roser Barry P.;Sampei Yoshikazu;Manaka Takuya;Otani Souya
• 通讯作者: Otani Souya

Downstream and seasonal changes of lithium isotope ratios in the Ganges-Brahmaputra river system

恒河-雅鲁藏布江水系锂同位素比值下游及季节变化

• DOI: 10.1002/2016gc006738
• 发表时间: 2017
• 作者: Manaka Takuya;Araoka Daisuke;Yoshimura Toshihiro;Hossain H. M. Zakir;Nishio Yoshiro;Suzuki Atsushi;Kawahata Hodaka
• 通讯作者: Kawahata Hodaka

Spatial and seasonal variation in surface water pCO2 in the Ganges, Brahmaputra, and Meghna Rivers on the Indian subcontinent

印度次大陆恒河、布拉马普特拉河和梅格纳河地表水二氧化碳分压的空间和季节变化

• DOI: 10.1007/s10498-015-9262-2
• 发表时间: 2015
• 影响因子: 1.6
• 作者: Manaka; T.; Ushie; H.; Araoka; D.; Inamura; A.; Suzuki; A.; Hossain; H. M. Zakir.;Kawahata; H.
• 通讯作者: H.