摘要
The Qiantang Basin is now one of the topics of general interest in petroleum exploration in China. This paper reports a comprehensive study of geophysical and geological survey data recently obtained in this area and, combined with INDEPTH-3 deep survey results, comes to the following conclusions： 1） The hydrocarbon source formations, reservoirs, and overlying strata and their association within the basin are quite good, local structures are developed, and, therefore, the region is favorable for forming and preserving oil and gas accumulations. Faults are not a fatal problem. The future main target strata are the middle-deep structural strata composed of Upper-Triassic and middle Jurassic rocks; 2） A new classification has been made for second-order tectonic sequences inside the basin to disavow the central Qingtang uplift. It is noted that the main structures at the surface are orientated NW-SE and the crustal structure can be described as three depressions, three risees, and one deep depression, of which the prospective zone with the most potential is the inner main subsided belt and its two sides; 3） Comparatively intensive interaction between the crust and mantle and volcanic and thermal activities in the northern basin play a very important role in petroleum evaluation. The southern deeper sedimentation and less thermal activity make this area a more perfect zone for oil exploration; 4） Currently, the most important objective is determining the physical properties of the deep strata, the status of oil and gas accumulations, the source of the hydrocarbons, and the relationship between the upper and lower structures; and 5） The Lunpola Tertiary basin may be favorable for oil accumulations because petroleum may migrate from marine strata on two sides.
Qiantang 盆现在是对中国的对石油探索的一般兴趣的话题之一。这篇论文报导最近在这个区域获得的地球物理、地质的调查数据的全面研究并且，与 INDEPTH-3 深调查结果结合了，来到下列结论：1 ) 在盆以内的烃来源形成，水库，和 overlying 阶层和他们的协会相当好，本地结构被开发，并且，因此，这个区域为形成并且保存油和煤气的累积是有利的。差错不是一个致命的问题。未来主要目标阶层是由上面三叠纪、中间的侏罗记岩石组成的中间深的结构的阶层；2 ) 一个新分类在盆内为秒顺序被做了构造序列不承认中央 Qingtang 高举。在表面的主要结构是面向的 NE-SE，外壳的结构能深被描述为三消沉，三 risees，和消沉，这被注意消沉，哪个未来的地区与最潜在是内部主要的减退的带和它的二个方面；3 ) 在在北盆戏的外壳和披风和暴烈、热的活动之间的比较地集中的相互作用在石油评估的一个很重要的角色。南部的更深的沉积和不太热的活动为油探索使这个区域成为一个更完美的地区；4 ) 当前，最重要的目的正在决定深阶层，油的地位和煤气的累积的物理性质，烃的来源，和在上面、更低的结构之间的关系；并且 5 ) 因为石油可以在二个方面上从海洋的阶层移居， Lunpola 第三级的盆可能为油累积是有利的。
