In my RSS reader I have a bunch of feeds from journals. Some work wonderfully, while others are even poor substitutes for the e-mailed table of contents. (Come on, who only wants their RSS feed to have the Online Early Articles, but NOT the table of contents!) I tend to read the smaller geo blogs and their postings in the morning over breakfast, but the journal blogs get left on a weekly basis till I have a chunk of time to cath up with them.
Today while cathing up on my Science feeds, I noticed a few technical comments and replies that I enjoyed and since they are not blocked by the paywall at AAS I thought some of you might enjoy them as well.
The first is on whether a channel system on Mars is draped with ice or lava. Without having read the original article, this comment and reply summarized their positions and rebuttals well. The way a good comment and reply should be.
Comment on "Athabasca Valles, Mars: A Lava-Draped Channel System"
Response to Comment on "Athabasca Valles, Mars: A Lava-Draped Channel System"
The second is on mechanics of plate tectonics in the past. But are their proposed changes to the mechanics correct/possible?
Comment on "Intermittent Plate Tectonics?"
Response to Comment on "Intermittent Plate Tectonics?"