1points save ans what rock type dominates the entire western part of new york state (e. g. going towards rochester) ? igneous question 18 1 points save answer how old are the rocks found at henrietta (a town just south of rochester)? oa 420-440 ma b. 360-420 ma oc200-250 ma od. o-2.5 ma 1 points save answer question 1 what rock type is the unit mapped in red found on the western side of the tappan zee bridge? o a igneous ob. sedimentary og metamorphic save all answers ve and sub click save and submit to save and submit. click save all answers to save all answers.