对运用瓦尔特相律中的某些问题的讨论

瓦尔特相律不可随便套用－ 该相律明显不适用于有大沉积间断的情况－ 当沉积环境在时空上出现突变或随时间推移发生重大变化时，不适宜于用单个的静态模式，而适宜于用动态模式或多个静态模式的组合来表示相的时空关系，进行相解释和建立相关系时应排除各种因素的干扰－ 参５－

DISCUSSION ON THE APPLICATION OF WALTHER'S LAW OF FACIES

Walther's Law of Facies applies only to the successions without major breaks. The breaks in successions are marked by the erosive contacts or sometimes the sharp contacts. The law can not apply inflexibly in the case of abrupt changes of facies in vertical or lateral directions. The abrupt changes of facies are caused by some particular factors, such as the reef growth and the large differentiation of the relief of sea floor. In order to represent the great changes of facies in both vertical and lateral directions, a dynamic model or a series of static models, instead of a single static model, should be made. Great attention should be paid to the transition between the two different facies, especially in the situation of the abruptly gradational contacts.5refs.