Yup... it is the remnant of Mount Mazama which blew itself to pieces in a pyroclastic event (think Mt. St. Helens times 1,000) about 20,000 years ago.
This just proves that we really are not positive about the meteoric origin of the extra-terrestrial craters. We have yet to see a crater formed by such means. We may see one tomorrow... or we may never be looking at the right time to see one being formed.
This just proves that we really are not positive about the meteoric origin of the extra-terrestrial craters. We have yet to see a crater formed by such means.Actually, since 1994's SL-9 impacts on Jupiter (for those who needed more than the firsthand observations of the only scientist to visit the Moon -- Apollo 17), there aren't any credible scientists who attribute lunar craters to anything besides impact. In 1960 there was only a tiny minority (geologists mostly) who subscribed to the impact origin model. Now the alleged volcanic origin of Martian craters has been raised up (again), but with Martian proximity to the largest known asteroid belt, and the probable asteroidal capture origin for both of Mars' moons, plus the likelihood that most of the craters of the Hemisphere of Craters were formed from a single large impact event, it appears to be more foolishness from the impact opponents.
George W. Bush will be reelected by a margin of at least ten per cent