Lipid/bitumen maturation by hydrothermal activity in sediments of Middle Valley, leg 139
Lipid/bitumen maturation by hydrothermal activity in sediments of Middle Valley, leg 139
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DOI：
10.2973/odp.proc.sr.139.237.1994
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发表时间：
1994
影响因子：
3
通讯作者：
B. Simoneit
中科院分区：
文献类型：
--
作者：
B. Simoneit
在胡安德富卡海岭北部中谷海洋钻探计划第 139 段的沉积物中，研究了有机质加速成岩作用、成熟作用以及热液石油的还原作用。 855 和 856 号地点的沉积物经历了高热流，导致未成熟有机质加速成岩作用，而没有产物迁移。通过这些沉积物的液体迁移导致成熟有机成分的流入，产生不同的沥青混合物。在 857 号站点，蚀变已就地发生到退化阶段，而在 858 号站点（最热的洞），热液石油在生成后发生了迁移。正链烷烃的成熟从高 CPI 值上升至 250 道尔顿。
The accelerated diagenesis, maturation, and catagenesis of organic matter to hydrothermal petroleum was studied in sediments from Ocean Drilling Program Leg 139 in Middle Valley, northern Juan de Fuca Ridge. Sediments at Sites 855 and 856 have experienced high heat flow resulting in accelerated diagenesis of the immature organic matter without product migration. Ruid migration through these sediments has resulted in an influx of mature organic components, yielding diverse bitumen mixtures. At Site 857 the alteration has occurred in situ to the catagenetic stage and at Site 858, the hottest holes, the hydrothermal petroleums have migrated after generation. Maturation for the rc-alkanes proceeds from high CPI values to 250 dalton).