Study on sedimentary characteristics and its effects on the formation and decomposition of gas hydrate on continental slope of the northern South China Sea
南海是中国最大的边缘海，覆盖着巨厚的富含有机质的沉积地层，沉积速率高，具备良好的生油生烃能力，具有巨大的资源潜力，是我国的海洋油气资源宝库。天然气水合物作为分布广储量大且对环境友好的资源，具有极高的科学意义和社会意义，南海北部陆坡是我国天然气水合物赋存的最有利海域。近年来南海北部多处天然气水合物钻探采样为我国天然气水合物资源的研究提供了强有力的支撑。本文通过对南海北部陆坡台西南盆地邻近海域地质调查所获沉积物柱状样进行粒度、有机碳、孔隙水、元素矿物等地球化学分析，以研究南海北部陆坡沉积物的分布特征及变化规律，并对比天然气水合物赋存区的沉积环境特征，探讨研究区域沉积物特征对天然气水合物形成、分解的...The South China Sea is the largest marginal sea of China, covered with thick sedimentary strata rich in organic matter, with high deposition rate, it is a good source of hydrocarbon generation ability, which has a great resource potential, it is a precious ocean oil and gas resource of China. As a widely distributed,large reserved and friendly to the environment resources, gas hydrate has importa...学位：理学硕士院系专业：海洋与环境学院_海洋地质学号：2242010115131
