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引言 众所周知,无论是现实构造形态的判定或原始构造特征的研究,都离不开岩层产状变化的分析。然而,在野外工作中,岩层产状往往并不都是容易判定的。例如,在厚层状或块状沉积岩分布区和火山熔岩分布区,如果露头比较零星,其岩性层理或流理的产状就很难以确切判测。偶有不慎,甚至还会被局部存在的斜层理或缓节理所迷惑,造成层理、流理产状的误判、误测。解决这类问题的具体方法,目前还不多,当然也就更谈不上什么将岩层现产状复原到成岩时期原始产状,以及判识该地区古构造特征的方法了。
INTRODUCTION It is well known that both the determination of the actual tectonic forms and the study of the original tectonic features can not be separated from the analysis of changes in the rock formation. However, in the field work, rock formation is not always easy to judge. For example, in thick-bedded or massive sedimentary rock distributions and volcanic lava distributions, if the outcrops are sporadic, the lithology or flow regimes of the outcrops are hard to pinpoint. Occasional inadvertently, and even be confused by the local existence of oblique bedding or slowing, resulting in bedding, flow miscarriage of justice, misidentification. There are not many specific ways to solve this kind of problem yet, of course, nothing is going to be said about the original occurrence of the rock strata in the diagenesis period and the method of identifying the paleo-tectonic features in the area.