  The Metallic Ratio is fascinating topic that continually generated news
ideas. A Riemannian manifold endowed with a Metallic structure will be called a
Metallic Riemannian manifold. The main purpose of the present paper is to study
the geometry of transversal lightlike submanifolds and radical transversal
lightlike submanifolds and of Metallic Semi-Riemannian manifolds. We
investigate the geometry of distributions and obtain necessary and sufficient
conditions for the induced connection on these manifolds to be metric
connection. We also obtain characterization of transversal lightlike
submanifolds of Metallic semi-Riemannian manifolds. Finally, we give an
example.
