Pay streak

Also found in: Encyclopedia.
1.(Mining) The zone, parallel to the walls of a vein, in which the ore is concentrated, or any narrow streak of paying ore in less valuable material.
2.(Oil Boring) A stratum of oil sand thick enough to make a well pay.
References in periodicals archive ?
Higher gold grades occur concentrated in fluvial channels or pay streaks, and valleys in the footwall upon which the conglomerate was deposited.