石油学报 ›› 1988, Vol. 9 ›› Issue (1): 25-35.DOI: 10.7623/syxb198801004

• 论文 • 上一篇    下一篇

云南温浏构造变质沥青的性质及其地质意义

罗槐章   

  1. 滇黔桂石油地质科研所
  • 修回日期:1986-12-29 出版日期:1988-01-25 发布日期:2013-07-08

THE NATURE AND GEOLOGICAL SIGNIFICANCE OF METAMORPHIC ASPHALT IN WENLIU STRUCTURE YUNNAN

Luo Huaizhang   

  1. Dian-Qian-Gui Institute of Petroleum Geology
  • Revised:1986-12-29 Online:1988-01-25 Published:2013-07-08

摘要: 南盘江坳陷温浏构造石炭、二叠系固体沥青分布广泛,野外调查主要见有6种产状分布,显微镜下观察,可分为6类显微结构,并对其特征进行了描述。通过对沥青的物理性质的描述、元素分析、沥青反射率的测定、沥青的x射线衍射分析,初步可以了解温浏沥青的结构特征,认为温浏沥青属高变质的碳质沥青和碳沥青类。从生油岩的热演化史,讨论了沥青的形成及演化过程,并对沥青的多期性进行了分析。

关键词: 生沥青, 地质意义, 镜质体反射率, 南盘江坳陷, 二叠系, 构造变质, 显微结构, 生油岩, 方解石, 溶蚀孔隙

Abstract: Solid asphalt is widely dispersed over Carboniferous and Permian formations in Wenliu structure of Nanpanjiang depression. It has been discovered that there are six types of occurrence in field survery and six micro-textures in microscope observation. Wenliu asphalts is a type of highly metamorphosed carbonaceous asphalt and anthraxolite according to the physical properties, determined by x-ray diffraction, C-, H- analysis and the measuring of reflectance. The Permian source rock in the area has reached a postmaturity stage. The precess of asphalt formation and evolution are discussed from the thermal evolution history of that source rock. Properties multistage formation of the asphalts are analyzed also.