Check your mailboxes (or libraries)!
The new issue of American Antiquity is out and if you look to the Reports section, you will see an article by Sarah Trabert and colleagues, “Following a Glittering Trail: Geo-Chemical and Petrographic Characterization of Micaceous Sherds Recovered from Dismal River Sites.”
This article summarizes their analysis of “micaceous” ceramics from Dismal River sites and presents data to show that many ceramics previously believed to have been made in northern New Mexico were more likely made from mica-rich materials found in Colorado and/or Wyoming. Rather than relying solely on their connections with northern Rio Grande groups, some Dismal River potters manufactured their own versions of the glittering Rio Grande pots. These Dismal River copies were then distributed throughout the Central Plains.