当前位置: X-MOL 学术Pet. Explor. Dev. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Architecture of deepwater turbidite lobes: A case study of Carboniferous turbidite outcrop in the Clare Basin, Ireland
Petroleum Exploration and Development ( IF 7.0 ) Pub Date : 2020-10-19 , DOI: 10.1016/s1876-3804(20)60111-2
Leifu ZHANG , Yilong LI

Through lithofacies analysis and architecture anatomy of the Carboniferous Ross Sandstone turbidites outcropped at western Ireland, the depositional model of deepwater turbidite lobes is established. Seven types of lithofacies are recognized including goniatites-rich shale, laminated shale, laminated siltstone, massive sandstone, fine-medium sandstone with mud-clast, basal gravel, and chaotic mudstone, which can be subdivided into units of three origins, turbidite lobe, turbidite channel, and slide-slump; and four hierarchical levels, lobe complex, lobe, lobe element and single sandstone layer. The lobes show apparent compensational stacking pattern, lobe elements display typical thickening-upward cycles on vertical profile, and the higher the hierarchical level, the better the preservation of the hierarchical boundary is. In general, turbidite lobe deposits appear as tabular, parallel/sub-parallel sandstone and mudstone interbeds, and change from thick, massive sandstone in the proximal end to thinner sandstone and mudstone interbeds from axis to fringe, with the sand-shale ratio and degree of sandstone amalgamation decreasing.



中文翻译:

深水浊积叶的构造:以爱尔兰克莱尔盆地的石炭系浊积露头为例

通过对西爱尔兰出露的石炭纪罗斯砂岩浊积岩的岩相分析和构造解剖,建立了深水浊积岩片的沉积模型。公认的岩相类型有7种,包括富辉石岩页岩,层状页岩,层状粉砂岩,块状砂岩,带碎屑的中型砂岩,基底砾石和混沌泥岩,它们可细分为三个来源的单元,浊积叶,浑浊通道,滑塌;和四个层次级别,分别为波瓣复杂度,波瓣,波瓣元素和单个砂岩层。裂片显示明显的补偿堆积模式,裂片元素在垂直剖面上显示典型的向上-向上循环,并且层次级别越高,层次边界的保存越好。一般来说,

更新日期:2020-10-29
down
wechat
bug