In general, if a body of igneous (source) rock is subjected to partial melting, the magma that is produced is expected to be

If a body of igneous rock is subjected to partial melting, the magma that is produced is expected to be more felsic than the source rock. It means that the magma is rich or high in concentration of silicate minerals. They are also rich in silicon, aluminum, sodium and potassium.

This would be an open primary. a closed primary people can vote only prior to election day if the party if they are registered. independent voters can not participate. there is not a wide-open primary, but there is a semi-open primary.