陆相沉积盆地岩相古地理图编制准则及其方法概述  

Compilation guidelines and methods on lithofacies and palaeogeographic map for terrestrial sedimentary basin

作　　者：陈戴生[1] 蔡煜琦[1] 宋继叶[1] 

机构地区：[1]核工业北京地质研究院中核集团铀资源勘查与评价技术重点实验室,北京100029

出　　处：《世界核地质科学》2011年第4期194-201,共8页World Nuclear Geoscience

摘　　要：在强调陆相沉积盆地岩相古地理图件编制重要性的基础上,着重提出若干编图准则:(1)编图对象必须是"同时相"的地层,亦即同一时期内沉积作用的产物;(2)所取地层间隔(作用单元)原则上是越短,越接近真实情况,具体比例尺选择应根据任务而定;(3)要严格遵循瓦尔特相律,沉积相在剖面上的变化序列应与沉积相在平面上的展布相一致;(4)必须综合分析各类沉积相标志,充分利用地质、地球物理、地球化学和古生物等多方面的信息,准确开展沉积相类型的划分;(5)图面上各类沉积相要配套,形成一个沉积体系。编图具体方法首先必须要有完备而可靠的第一手素材,然后按照先剖面图,后平面图;先基础性图件,后综合性图件的步骤有序地进行。The significances of compiling lithofacies palaeogeographic map are emphasized for the study on terrestrial sedimentary basin,and the compilation guidelines are proposed as the following： 1）the compiling objects must be the layers in＇spontaneous phases＇,i.e.the products of sedimentation at the same phases;2）the layer intervals（sedimentation units）are principally as short as possible,so as to close the real situation and the compiling scales should be decided by the tasks;3）Walter＇s law of facies should be strictly followed.The changing succession of sedimentary facies on the profile should be consistent to their extension sequences on the plane;4）all kinds of sedimentary facies indication such as information from geology,geophysics,geochemistry and paleontology should be fully used and analyzed,so as to comprehensively summarize out the criteria for the correct classification of sedimentary facies;5）all kinds of sedimentary facies in the map should be integrated to form a sedimentary system.To compile,the first important thing is to get the full and reliable first-hand material.Then,the compilations shall be carried out from the section to plane,the basic maps first and comprehensive map second by following the above steps orderly.

关 键 词：陆相沉积盆地 岩相古地理图 编制准则 

分 类 号：P619.14[天文地球—矿床学] P598[天文地球—地质学]