• 责任者：Guan Shuwei (Research Institute of Petroleum Exploration and Development ; PetroChina ; Beijing 100083 ; China) ; Li Benliang
• 刊名：Earth Science Frontiers
• 出版年：2009
• 卷期：16(3)
• 关键词：构造楔 ; tectonic wedges ; 准噶尔盆地 ; Junggar Basin
• 页码：p.129-137
• 图表：7 illus., 31 refs.
• 分类号：0300
• issnNo：ISSN1005-2321
• isbnNo：CN11-3370/P

///Two basic conditions are necessary for structural wedges forming: one is at least two connected fault segments that bound a triangular or wedge-shaped fault block, and the other is the contrary slip transfer directions of these two fault segments. When the backward slip cut through the overlying stratum, folds were formed on the forelimb of structural wedge, which can also be used as the direct evidence to infer the deep wedging. Structural wedges are very typical in the southern margin of Junggar Basin and exhibit a variety of shapes and styles imbricated each other out of sequence. In the exploration, it is a key procedure to define the wedges trend and lateral change in three-dimensional space subtly, then drilling the target wedge that has been precisely defined based on the progress of seismic acquisition, processing and interpretation.