Northern Alberta kimberlite province maar-style diatremes that have a vertical-walled volcanic crater of explosive origin, surrounded by a low rim of ejecta. Pyroclastic fall and surge are the two volcanic mechanisms of deposition. There are also deposits formed by hydraulic reworking and resedimentation of material from tephra cones and/or extra-crater fall and surge deposits. The NAKP volcanics, including the ML pipes, contain abundant lapilli and olivine supported in a fine-grained groundmass. Other minerals may include serpentine, clay minerals, carbonate minerals, phlogopite, ilmenite, perovskite, spinel, apatite, pyrite and, in some cases, diamonds. Northern Alberta kimberlite province The Northern Alberta Kimberlite Province (NAKP) consists of three
Latin Grammy Award for Best Portuguese Language Rock or Alternative Album Latin Grammy Award for Best Portuguese Language Rock or Alternative Album The Latin Grammy Award for Best Portuguese Language Rock or Alternative Album is an honor presented annually at the Latin Grammy Awards, a ceremony that recognizes excellence and creates a wider awareness of cultural diversity and contributions of Latin recording artists in the United States and internationally. According to the category description guide for the 13th Latin Grammy Awards, the award is for vocal or instrumental Portuguese Language Rock albums containing at least 51% playing time of newly recorded material. For Solo artists, duos or groups. From 2000 to