Feb 27, 2017. 1  Tonight, Casey Affleck took home the Academy Award for Best Actor for his role in Manchester by the Sea. While this might be a reason for celebration for the new Oscar-winner, not everyone was so eager to join in with the applause.
Bituminous coal is a sedimentary rock. Anthracite coal is considered a metamorphic rock.
And, with metasomatism we have rock-altering fluid involved. This process is seen in the creation of anthracite coal. The parent rock, bituminous coal, is formed from the compaction of dead plant matter, usually in a wet, swampy environment.