Sea slate area oldland

The southwestern sea valley area covers a large part of Zeeland and the South Holland islands. It is classified chronologically in old and new land. The old country includes Schouwen, a small part of Duiveland (around Zierikzee), part of Tholen, most of Walcheren, the Zak van Zuid-Beveland, the Yerseke and Kapelse Moer, and some small, isolated areas in East and West Zeeuwsch-Flanders. Sa_Text "The ancient sea clay landscape has formed in particular after the Roman Age, when large sea-intrusions eroded the present peat package or covered it with a thick layer of sea sand and clay. Where the peat remained, it was later excavated to a large extent for peat and salt extraction. The ancient land includes the sea deposits from the Early Middle Ages (500-1000), consisting of sandy creek ridges and low-lying, limeless ponds. The formation of creek ridges has to do with differential latch (klink = subsidence due to dewatering). Initially, the creeks themselves were the lowest part of the landscape. The flanking ramparts, made up of relatively coarse material, were somewhat higher than the environment that consisted of the remaining, previously formed peat. Then much finer material was deposited, mainly heavy clay. In this way the pool areas were created. When the creeks landed, the bed filled itself with sandy and savvy material, just as long as the bed had the same height as the banks. The pool areas now consisted of clay on peat, which began to sound in the process of dewatering with the extraction. The bottom fell. Because sand and zavel sound much less, the former creekbeds remained as backs in the landscape. As a result of nut and scouring (excavation for salt and peat extraction, see below), the pond areas became increasingly lower, increasing the height difference with the creek back soils. The first structural habitation on the creek ridges took place from the 9th and 10th centuries, especially on Walcheren and in the western part of Schouwen. The inhabitants came from the previously formed beach walls, where they lived since the Bronze Age. On the higher ridges, fields were built and villages were built; the road pattern was also traditionally related to the creek ridges. The pool areas were used as meadow and hayland. The marshes were also used as pastures. Heavy storms hit the Delta area in 1014 and 1042; this led to the raising of living heights from 1 to 2 meters high. Some grew into complete village stars, such as Kloetinge on South Beveland. In the 12nd/13rd century, a number of individual dwellings were raised into castle mountains (vliedbergen). The heavy storm surge of 1134 led to the systematic embankment of the oldland in the course of the 12nd and 13rd centuries. Earlier dams and dikes were included in the dike rings. In the Late Middle Ages, we started to extract peat for the production of salt and fuel. This was done by removing the relatively thin clay layer at the ground level and digging and drying the peat. Before salt extraction, the peat was poured several times with salt water, until it was saturated. After combustion, the salt could be extracted from the ashes. After the excavation of the peat, the deposited clay was dispersed again and a “hollow sphere” (very irregular) ground was left behind, which was a lot lower than in the unearthed situation. Large areas have been excavated for the purpose of selving and moerning, making it easy for the sea to make a road in the country in the event of dike break-through. In addition, the drainage of the “moved” areas was made more difficult and waterways had to be digging.