| 碳酸盐岩沉积相及相模式 |
| |
| 引用本文： | 金振奎,石,良,高白水,余宽宏.碳酸盐岩沉积相及相模式[J].沉积学报,2013,31(6):965-979. |
| |
| 作者姓名： | 金振奎 石 良 高白水 余宽宏 |
| |
| 摘 要： | 碳酸盐岩在我国广泛发育，是重要的油气勘探层位。目前关于碳酸盐岩沉积相及相模式，存在诸多问题，主要包括部分沉积相命名混乱，同一种相，名称不同，或同一名称，含义不同；相模式不完善，用词不严谨，不同相带的区别特征不明确，应用困难等等。本文根据多年碳酸盐岩研究经验以及国内外前人对现代及古代碳酸盐岩的研究，对一些碳酸盐岩沉积相的定义进行了厘定，对台地、斜坡和盆地的类型进行了划分。在前人研究基础上，将台地划分为孤立台地、镶边台地和离岸台地，其中将镶边台地进一步划分为镶边陡坡台地和镶边缓坡台地，将离岸台地进一步划分为离岸陡坡台地和离岸缓坡台地；将斜坡划分为缓坡、陡坡和陡崖；将盆地划分为浅盆和深盆。分析了不同类型台地的成因和演化序列，将台地演化划分为初期、早期、中期和晚期四个阶段，不同阶段特征不同。总结出了不同类型台地的沉积模式，尤其对不同相带的识别标志进行了提炼和总结。
|
| 关 键 词： | 碳酸盐岩 沉积相 沉积模式 台地 斜坡 盆地 |
Carbonate Facies and Facies Models |
| |
| Abstract: | Carbonate rocks are widespread in China, and are important exploration targets for oil and gas. About carbonate facies and facies models, there still exist many problems to be solved, including chaotic nomination of facies, different names for the same environments, different meanings for the same name, incomplete facies models, obscure identification marks in such facies models and difficult application, and so on. In this paper, based on the author's experience of long term study on carbonate rocks and previous studies on modern and ancient carbonate environments, some carbonate facies are redefined, such as platforms, slopes and basins are classified into different types. Carbonate platforms are divided into islolated platform, rimmed platform and offshore platform. Rimmed platform is further divided into steep-slope rimmed platform and gentle-slope rimmed platform; offshore platform is further divided into steep-slope offshore platform and gentle-slope offshored platform. Slope is divided into gentle slope, steep slope and steep cliff. Basin is divided into shallow basin and deep basin. Origin and evolution sequence of platforms are analyzed, and platform evolution is divided into primary stage, early stage, middle stage and late stage. In different stages, platforms show different characteristics. Depositional models of different types of platforms and key characteristics of different facies are summarized. |
| |
| Keywords: | |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《沉积学报》浏览原始摘要信息 |
| 点击此处可从《沉积学报》下载免费的PDF全文 |
|
