a Musa, Yusuf Avamiku \a Characterization of Lineament Structures Across Amethyst Mineralization Zones Using Aeromagnetic Data at Northern Kaduna State, Nigeria \h [Text] \c by Avamiku Yusuf Musa - \a Zaria: \b Dept. of Physcis, ABU \c 2017 - \a xiv,66leaves.: \b ill. \a Faculty of Physical Science \a Includes bibliographical references LC Class. No.: \a QE 394.A4 Mus / \b 500073