If underground shifts in pressure increase the pressure on a magma chamber, the magma chamber may fracture and lead to a volcanic eruption. Sometimes, the remaining magma cools and crystallizes into an igneous body of granite called a pluton.
Accrual (accumulation) of something is, in finance, the adding together of interest or different investments over a period of time. It holds specific meanings in accounting, where it can refer to accounts on a balance sheet that represent liabilities and non-cash-based assets used in accrual-based accounting.
Accrual is the cumulative growth of a given asset, usually in the context of a percentage increase. Savings accrue over time from interest or deposits. Interest accrues over time as time passes and the terms of the interest agreement happen. Debt accrues as more money is owed.