title: SEDIMENTARY GEOLOGY: Homegrown Quartz Muddies the Water.
abstract: Mudstones are an important source of hydrocarbons that migrate into petroleum deposits, and they can reveal much about Earth's history--if they are read correctly. Now a team of geologists has found that a telling feature of many mudstones may have been misinterpreted, throwing into question conclusions about everything from climate to ocean currents.
authors.forename: E
authors.initials: E
authors.lastname: Stokstad