Breda Formation whale bones were found), the Zenderen Member (green, glauconiferous fine sand) and the Delden Member (sandy, glauconite and goethite bearing clay and loam. The Breda Formation corresponds largely with the Berchem Formation of northern Belgium. Breda Formation The Breda Formation (; abbreviation: BR) is a geologic formation in the subsurface of the Netherlands. The formation consists of marine glauconiferous sands and clays that were deposited during the Miocene epoch. Although the formation is not very rich in fossils, sometimes bones of fishes, mammals ("Leptophoca cf. proxima", "Protophocaena minima"), shells and shark teeth (a.o of Megalodon) are found. The Breda Formation
Capture of Breda (1590) so the poorly attempted siege ended in failure and Mansfeld retreated. The city would remain in Dutch hands until 1625, date in which the Spanish tercios of Ambrosio Spinola would be able to recapture it after a long siege. In 1637 Breda after yet another siege would return to Dutch hands once and for all. Around 1610 the construction of the Spanish Gate or "Spandjaardsgat" was started as a remembrance to the successful capture of Breda in 1590. Also the gate was to assist in refreshing the stagnant water of the castle's moat. Capture of Breda (1590) The Capture of