CREATE TABLE table_1081235_1 (composition VARCHAR, name_of_lava_dome VARCHAR)

What is the composition at Valles lava dome?
SELECT composition FROM table_1081235_1 WHERE name_of_lava_dome = "Valles lava dome"
SELECT "composition" FROM "table_1081235_1" WHERE "Valles lava dome" = "name_of_lava_dome"