Samuel Y. Johnson Carl C. Swisher III Mark A. Mason John D. Obradovich Mary Lou Cotton Mark V. Filewicz David R. Vork Mark J. Pawlewicz Zenon C. Valin Jean-Luc Schneider Richard V. Fisher Richard G. Stanley 1996 <p>No abstract available.</p> application/pdf 10.3133/b1995MNO en U.S. Geological Survey Age of the Lospe Formation (early Miocene) and origin of the Santa Maria Basin, California. Petroleum source potential and thermal maturity of the Lospe Formation (lower Miocene) near Point Sal, onshore Santa Maria Basin, California. Obispo Formation, California; remobilized pyroclastic material reports