摘要
这里的造岩矿物与一般的常见的湖湘沉积矿物不同,研究区平地泉组出现来自地幔的岩浆矿物和热液流体参与沉积的特征。主要的造岩矿物有石英、钠长石、正长石、透长石、白云石、铁白云石、方沸石,少量的霓石(霓辉石)、硅钡钛石、石盐和黄铁矿等。平地泉组特殊矿物的出现,表明研究区平地泉组沉积成岩过程中有来自深部的超基性碱性火山碎屑矿物的参与,碱性岩浆活动及地幔物质对该地区矿物及岩石组合的影响较大。岩浆活动和热液活动形成的特殊矿物不仅对油气成藏具有重要的指示意义,而且对烃源岩和储集层的形成意义重大。此类特殊矿物的发现可能为致密油的研究带来新的思路。
In this paper,the Rock-forming minerals are different from other common huxiang sedimentary miner-als;flat spring in the study area group magma is from the mantle minerals and of sedimentary characteristics ofhydrothermal fluids involved. Major Rock-forming minerals are quartz,albite,orthoclase,albite,dolomite,Fe Do-lomites,analcime,small amounts of aegirine,acmite,Silicon-barium titanium stone,halite,pyrite and so on. Spe-cial minerals in the Flat Springs group indicated that there are Ultrabasic-alkaline volcanic minerals of the deepinvolvement of alkaline magmatism,and mantle mineral and alkaline magmatism have great effect on rock form.Magmatic activity and special minerals of hydrothermal activity not only has important guidance for hydrocarbonaccumulation but also has important meaning for the formation of hydrocarbon source rocks and reservoirs.
出处
《新疆石油天然气》
CAS
2016年第2期14-17,1-2,共4页
Xinjiang Oil & Gas
关键词
准东北部
平地泉组
特殊矿物
成因
Northeast of gunggar basin
Pingdiquan group
Special minerals
Formation cause
