[tex]When \: two \: continental \: plates \: collide \: neither\\ \: plate \: can \: be \: subducted \: due \: Â to \: their \: high\\ \: bouyancy \: . With \: this \: type \: of \: collision \: there \: are \\\: no \: features \: such \: as \: a \: subduction \: zone, \: trench\\ \: or \: acretionary \: wedge. \: After \: collision \: the \: oceanic \: \\ lithosphere \: breaks \: off \: and \: sinks \: into \: the\\ \: mantle. \: [/tex]