Robinson, M.S., Clough, J.G., Roe, J.T., and Decker, J.E., 1992, Chronologic variations along the contact between the Echooka Formation and the Lisburne Group in the northeastern Brooks Range, Alaska: Alaska Division of Geological & Geophysical Surveys Public Data File 92-3, 98 p. https://doi.org/10.14509/1528
Arctic National Wildlife Refuge; Brookian Sequence; Canning Formation; Conodonts; Echooka Formation; Endicott Group; Foraminifera; Franklinian Sequence; Geochemistry; Glauconite; Hue Shale; Ivishak Formation; Katakturuk Dolomite; Lisburne Group; Neruokpuk Quartzite; Pennsylvanian; Permian; Rapitanian Sequence; Sadlerochit Mountains; Sedimentation; Shublik Mountains; Stratigraphy; Structure