Quaternary profile type map sheet 27-28-36 Proven – Ieper – Ploegsteert

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.本地图概览了图幅内的第四纪（Quaternary）剖面类型。该地图展示了最新沉积序列的空间分布，此类沉积涵盖风成（eolic）、河流相（fluviatiel）、潮成及坡积四类沉积。第四纪地图所覆盖的地表区域，均发育有特定第四纪地层（剖面类型）的相似沉积序列。尤为关键的是，单一套剖面类型的各组成地层厚度，可为后续的等高程线图（isohypsen）、等厚线图（isopacher）及配套文本提供指导依据。佛兰德斯（Flanders）地区的第四纪沉积兼具横向与纵向非均质性，且厚度差异悬殊。