21. Furthermore, the process for carrying out cementation for brass did not change greatly until the 19th century. 22. This intrusion advected heat from lower in the crust, facilitating pervasive quartz cementation of the detrital grains. 23. Deeper burial cementation shows a succession with two types of saddle dolomite and three types of blocky calcite. 24. During the Roman period a new process of metalworking started, cementation , used in the production of brass. 25. Beachrock is a type of carbonate beach sand that has been cemented together by a process called synsedimentary cementation . 26. Its operators concluded that the preservation and cementation of these outcrops had been controlled by flow of shallow groundwater. 27. The formation's thick bedding, extensive cementation and dolomitisation have made it a generally stable engineering material. 28. New methods of producing it by carburizing bars of iron in the cementation process were devised in the 17th century. 29. If the process of cementation continues, new beachrock would be formed in a new position in the intertidal zone. 30. Furthermore, once a sediment is deposited, it becomes subject to cementation through the various stages of diagenesis discussed below.
