Can solr point into a certain point in a document?
Not easily (unless there is a module I don't know of which does it). 

Solr can return highlighted terms, you can use this highlighting, to preprocess the node when being displayed to insert an anchor tag (after removing the ems), you cold append this tag to the search results page. 

Another way would be to index the pages separately. So you could at least link to the correct page (even if is a fragment id) when showing the results.