granite stone crushing units in latvia
Geology of Latvia Wikipedia. Low-grade metavolcanics and 1.8 billion year old granodiorites cover the Riga Megablock in the Adazi assemblage. The Riga Pluton (or Kurzeme Pluton) is a large intrusion from 1.65 billion years ago with gabbro, anorthosite and rapakivi granite, covered in unmetamorphosed Pavilosta Formation volcanics along the west coast.