Middle Ordovician Upwelling-Related Ironstone of North Wales: Coated Grains, Ocean Chemistry, and Biological Evolution

by Sarah K. Dunn, Peir K. Pufahl, Peir K. Pufahl, J. Brendan Murphy, Stephen W. Lokier
Published 2021-08-01

Botryoidal and Spherulitic Aragonite in Carbonates Associated with Microbial Mats: Precipitation or Diagenetic Replacement Product?

by Yuzhu Ge, Giovanna Della Porta, Chelsea L. Pederson, Stephen W. Lokier, René Hoffmann, Adrian Immenhauser, Adrian Immenhauser
Published 2021-06-01

Ordovician ironstone of the Iberian margin: Coastal upwelling, ocean anoxia and Palaeozoic biodiversity

by Peir K. Pufahl, Alexandra D. Squires, J. Brendan Murphy, Cecilio Quesada, Stephen W. Lokier, J. Javier Álvaro, Jason Hatch
Published 2020-09-01