Magma is a mixture of molten and semi-molten rock found below Earth's surface. Most magma consists of four types of materials: liquid rock, crystallized minerals, solid pieces of rock, and dissolved gases. When magma escapes through a volcano onto Earth's surface, scientists call it lava.
Download the Accretion of Duties Form (PDF, 8K) An accretion of duties is a promotion resulting from the upgrading of an employee's position because of additional duties and responsibilities. Jobs change and evolve for many reasons.
An accretion promotion is defined as a situation where: 1  there is demonstrated evidence of higher level work, 2  the old job is absorbed in the new job or is a natural successor to the previous position,and. 3  the accretion action will not result in the creation of a new position (i.e. there is no residual vacancy to be filled.