Quaternary profile type map sheet 31-39 Brussels – Yellies

This map gives an overview of the Quartarian profile types found on the map sheet. The map shows the sequence of most recent deposits. These deposits are eolic, fluviatiel, tidal deposits or slope deposits. The surfaces of the quarta map represent the areas where similar successions of specific quaternary layers (profile types) occur. The thickness of the various component layers of a profile type must, in particular, provide guidance on the additional isohypsen and isopacher cards and additional texts. The quarernary deposits in Flanders are lateral and vertical heterogeneous and vary widely in thickness.本地图对图幅内的第四纪（Quaternary）剖面类型（profile types）进行了概览。该地图展示了最新沉积的序列，此类沉积涵盖风成（eolic）、河流相（fluvial）、潮成（tidal）以及斜坡沉积（slope deposits）。本第四纪地图所覆盖的区域，对应发育相似的特定第四纪地层序列（即剖面类型）的地块。尤为关键的是，某一剖面类型的各组成层厚度，可作为配套等高程图件（isohypsen cards）、等厚图件（isopacher cards）及补充说明文本的编制依据。佛兰德斯（Flanders）地区的第四纪沉积在横向与纵向上均具显著非均质性，且厚度差异悬殊。