How can I display and excerpt of all pages with a meta_key and meta_value on index.php?

I don’t know how to do it with Pages, but with Posts or CPT I use the following list of of args :

 <?php $args = array( 
                  'post_type' => 'post', 
                  'post_status' => 'publish', 
                  'meta_key' => 'votes_count', 
                  'orderby' => 'meta_value_num'; 

 $wp_query = new WP_Query( $args );
 ?>

What does a print_r($args) return for you ?