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.
Similar definition of accrual basis accounting is true for financial accounting purposes, except that revenue can't be recognized until it is earned, even if a cash payment has already been received by the tax authorities.