Hydrocarbon compositions of bitumens from mineralized Devonian lavas and Carboniferous sedimentary rocks, central Scotland
Hydrocarbon compositions of bitumens from mineralized Devonian lavas and Carboniferous sedimentary rocks, central Scotland
复制标题
苏格兰中部矿化泥盆纪熔岩和石炭纪沉积岩中沥青的碳氢化合物成分
DOI：
10.1016/0264-8172(89)90028-7
复制
发表时间：
1989
影响因子：
4.2
通讯作者：
S. Brassell
中科院分区：
文献类型：
--
作者：
N. Robinson;J. Parnell;S. Brassell
固体沥青产于苏格兰米德兰河谷下泥盆统奥奇尔火山岩组的矿化脉中。沥青在米德兰河谷的石炭纪也很普遍。气相色谱法（g.c.）- 质谱法（m.s.）对来自泥盆纪岩石的沥青以及泥盆纪和石炭纪泥岩进行的研究表明，沥青含有生物标志物，石炭纪岩石更可能是沥青的来源。烃类可能是从断层以南的石炭纪盆地沿沿着奥奇尔断层带迁移到泥盆纪岩石中的。石炭纪岩石中沥青样品的有机地球化学反应反映了不同程度的生物降解作用和火成岩侵入体的加热作用。
Solid bitumens occur in mineralized veins in the Lower Devonian Ochil Volcanic Formation in the Midland Valley of Scotland. Bitumens are also widespread in the Carboniferous of the Midland Valley. Gas chromatography (g.c.) - mass spectrometry (m.s.) studies undertaken on bitumens from the Devonian rocks and on Devonian and Carboniferous mudrocks show that the bitumens contain biomarkers and that Carboniferous rocks are the more likely source for the bitumens. Hydrocarbons may have migrated into the Devonian rocks along the Ochil Fault zone from a downthrown Carboniferous basin to the south of the fault. The organic geochemistry of bitumen samples from the Carboniferous rocks reflects varying degrees of biodegradation, and heating by igneous intrusions.