试论“盆”“山”耦合和脱耦研究的方法学

Methodology of studying coupling and decoupling of “basin” and “range”

“盆”“山”耦合和脱耦把造山作用和盆地发育当作一个整体来研究其统一的运动学过程和动力学机制 ,必须有相应的方法论作保证。针对这一问题 ,有 3个方面需要讨论 :1)空间关系上 ,要在确定一个时间段的基础上正确划分“盆”“山”系统 ;2 )两套分类体系并用 ,在“正序”的研究和区域的研究中采用理性的系统分类 ,在“反序”的和局部 (主要指油气藏 )的研究中以应用性的分类为主 ;3)以造山带和盆地研究近年里形成的成功方法为基础 ,努力汲取各种新知识 ,将思路、方法和技术手段三者有机地结合起来。“盆”“山”耦合和脱耦研究自身 ,包括其方法学 ,不断开拓新领域 ,将可能成为中国大陆油气勘探新的理论指导。

Coupling and decoupling of “basin” and “range” is to study the uniform kinematic process and geodynamic mechanism of orogeny and basin development through viewing the two as a whole.It must be guaranteed by corresponding methodology.Three topics are discussed in this paper.(1)The “basin” and “range” system should be defined correctly on the basis of determining a certain time interval;(2)Two sets of classification systems should be used concurrently.Theoretical classification system is mainly used in “normal sequence” study and regional study,while practical classification system is mainly used in “reverse sequence” study and local(mainly refer to oil and gas reservoirs)study.(3)Thoughts,methods and technical means should be integrated together based on the successful study methods of orogenic belt and basin development in recent years.Coupling and decoupling of “basin” and “range” study,including its methodology,may provide new theoretical guidance for petroleum exploration in-China's Mainland.