GEOLOGY & PLANETARY SCIENCE A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z                    HOME ABOUT CATEGORIES SITE MAP COPYRIGHT ADVERTISE CONTACT entire Web this site agglomerate Agglomerate, Kootznahoo Formation, Southeastern Alaska. Credit: USGS A coarse volcanic rock made up of both rounded and angular fragments of lava in a matrix of smaller, often ashy, particles. It thus combines the characteristics of conglomerates and breccias. Related category    • GEOLOGY AND PLANETARY SCIENCE Also on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History Transport Concepts & Designs (partner site) BACK TO TOP