Eric Walker added Hothouse Earth: our planet has been here before – here's what it looked like to Geology
Eric Walker added Ship spies largest underwater eruption ever | Science | AAAS to Geology
Eric Walker added Huronian glaciation - Wikipedia to Geology
Eric Walker added r/geology - Purple gem in diorite - Amethyst or Garnet? to Geology
Eric Walker added r/geology - Oregon Coast, Devil's Kitchen - anyone know what made these holes? to Geology
Eric Walker added r/geology - This piece of sediment I found on the beach to Geology
Eric Walker added Sinkholes in Siberia and The Sinkhole That Swallowed a Mexican Farm | The New Yorker and A Giant Sinkhole Just Opened Up in Chile to Sinkholes, and added Sinkholes to Geology
Eric Walker added a number of topics and a number of links to Geologic time scale (GTS), and added Geologic time scale (GTS) to Geology and History, prehistory and geologic time
Eric Walker added International Commission on Stratigraphy (ICS) and International Union of Geological Sciences (IUGS) to Organizations involved in Geology, and added Organizations involved in Geology to Geology
Eric Walker added a number of topics to Geologists, and added Geologists to Geology and Scientists, researchers and academics
Eric Walker added a number of topics and a number of links to Minerals and gems, and added Minerals and gems to Geology, Natural resources and Atoms, molecules, chemicals, minerals, materials and compounds
Eric Walker added a number of topics and a number of links to Geology, and added Geology to Science, engineering, mathematics and the humanities
Eric Walker added a number of topics and a number of links to Science, engineering, mathematics and the humanities, and added Science, engineering, mathematics and the humanities to Aesthetics, Society and Knowledge
Eric Walker added The Day the Dinosaurs Died | The New Yorker and Hell Creek Formation - Wikipedia to Hell Creek Formation, and added Hell Creek Formation to Geology
Eric Walker added Paleoanthropology, Paleontologists and Extinction events and a number of links to Paleontology, and added Paleontology to Biology, Geology and History, prehistory and geologic time