Service: BLOOD BANK. Organization Description: A full service hospital serving the needs of the Northern Virginia area with a special emphasis in cardiovascular, women and children, oncology, and emergency services while offering a broad range of medical specialties and community educational programs. NONPROFIT. 1/1/1872.
Introduction. Diagenesis encompasses all the physical and chemical processes that affect sediments and sedimentary rocks in the portion of the rock cycle that includes the period of burial between deposition and weathering, and also between deposition and the onset of metamorphism.hysical grain rearrangement in very early diagenesis of unconsolidated sediment is an important control on the subsequent path of chemical diagenesis because of the effects on permeability and grain surface characteristics.
Late diagenesis, or epigenesis, covers everything that may happen to sedimentary rock between consolidation and the lowest stage of metamorphism. Emplacement of sedimentary dikes, growth of new minerals (authigenesis) and various low-temperature chemical changes (hydration, dolomitization) mark this stage.t does not include weathering, the processes that turn all kinds of rock into sediment. Diagenesis is sometimes divided into early and late phases. Early diagenesis covers everything that may happen after sediment is laid down (deposition) until it first becomes rock (consolidation).