( ( ( Igneous rocks ) ( derived ( from ( felsic magma ) ) ) ) ( ( ( ( contain ( ( ( relatively high ) quantities ) ( of ( sodium ( , ( ( aluminum and ) potassium ) ) ) ) ) ) and ) ( are ( composed ( of ( ( more ( ( than 65 ) % ) ) silica ) ) ) ) ) . ) )
(ROOT (S (NP (NP (JJ Igneous) (NNS rocks)) (VP (VBN derived) (PP (IN from) (NP (JJ felsic) (NN magma))))) (VP (VP (VBP contain) (NP (NP (ADJP (RB relatively) (JJ high)) (NNS quantities)) (PP (IN of) (NP (NN sodium) (, ,) (NN aluminum) (CC and) (NN potassium))))) (CC and) (VP (VBP are) (VP (VBN composed) (PP (IN of) (NP (QP (JJR more) (IN than) (CD 65) (NN %)) (NN silica)))))) (. .)))
Igneous rocks derived from felsic magma contain relatively high quantities of sodium, aluminum and potassium and are composed of more than 65 % silica.
(ROOT (S (NP (JJ Felsic) (NNS igneous) (NNS rocks)) (VP (VP (VBP contain) (NP (JJ felsic) (NNS minerals))) (, ,) (VP (ADVP (RB typically)) (VBP contain) (NP (NN aluminum) (CC and) (NN sodium))) (CC and) (VP (VBP are) (ADJP (JJ high) (PP (IN in) (NP (NN silica)))))) (. .)))
Felsic igneous rocks contain felsic minerals, typically contain aluminum and sodium and are high in silica.