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Geological Survey Research 1971 GEOLOGICAL SURVEY RESEARCH 1971 Chapter C GEOLOGICAL SURVEY PROFESSIONAL PAPER 750-C Scientific notes and summaries of investigations in geology, hydrology, and related fields UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON: 1971 UNITED STATES DEPARTMENT OF THE INTERIOR ROGERS C. B. MORTON, Secretary GEOLOGICAL SURVEY W. A. Radlinski, Acting Director For sale by the Superintendent of Documents, U.S. Government Printing Office Washington, D.C. 20402 - Price $2.75 CONTENTS GEOLOGIC STUDIES Marine geology Grain-size distribution and the depositional history of northern Padre Island, Tex., by K. A. Dickinson ....................... Zirconium on the continental shelf-Possible indicator of ancient shoreline deposition, by C. W. Holmes ...................... Economic geology Potential strippable oil-shale resources of the Mahogany zone (Eocene), Cathedral Bluffs area, northwestern Colorado, by J. R. DonnellandA.C.Austin .................................................................................. Paleontology Clark's Tertiary molluscan types from the Yakataga district, Gulf of Alaska, by W. 0. Addicott, Saburo Kanno, Kenji Sakamoto, and D.J.Miller ............................................................................................ Primitive squid gladii from the Permian of Utah, by Mackenzie Gordon, Jr. ............................................. Goniatites americanus n. sp., a late Meramec (Mississippian)index fossil, by Mackenzie Gordon, Jr. .......................... Eocene (Refugian) nannoplankton in the Church Creek Formation near Monterey,central California, by E. E. Brabb, David Bukry, and R. L. Pierce ......................................................................................... An ovuliferous callipteroid plant from the Hermit Shale (Lower Permian) of the Grand Canyon, Ariz., by S. H. Mamay and A. D. Watt ................................................................................................. Stratigraphy The Ordovician-Silurian boundary in the York Mountains, western Seward Peninsula, Alaska,by C. L. Sainsbury, J. T. Dutro, Jr., and MichaelChurkin,Jr. ..................................................................................... Carbonate clasts in epiclastic volcanic rocks and their paleotectonic implications, Blue Range primitive area, Arizona and New Mexico, by E. R. Landis, J. C. ~atte',and D. A. ~~ers............................................................ Glacial geology Chemical weathering and glacial erosion of crystalline rocks and the origin of till, by Tomas Feininger ........................ Sequence of glaciation in the Mesabi-Vermilion Iron Range area, northeastern Minnesota, by T. C. Winter ..................... Petrology Development of pillows on the submarine extension of recent lava flows, Mount Etna, Sicily, by J. G. Moore, Renato Cristofolini, andAntoninoLoGiudice .................................................................................. Clinoptilolite-bearingtuff beds in the Creede Formation, San Juan Mountains, Colo., T. A. Steven and R E. Van Loenen ......... Mineralogy Clay minerals, Longfellow mine, San Juan County, Colo., by R. G. Luedke and J. W. Hosterman ............................ Accessory epidote from hybrid granitoid rocks of the Mount Wheeler mine area, Nevada, by D. E. Lee, R. E. Mays, R. E. Van Loenen,andH.J.Rose,Jr. ................................................................................. Summary of mineralogic and lithologic characteristics of Tertiary sedimentary rocks in the middle Rocky Mountains and the northern Great Plains, by N. M. Denson and W. A. Chisholm ....................................................... Geochronology Age of the igneous rocks associated with ore deposits, Cortez-Buckhorn area, Nevada, by J. D. Wells, J. E. Elliott, and J. D. Obradovich ............................................................................................. Geochemistry Geochemical prospecting for thorium veins by stream-sediment sampling, Lernhi Pass quadrangle, Idaho and Montana, by M. H. Staatz, C. M, Bunker, and C. A. Bush ......................................................................... Geochemical exploration of the Monte Alto copper deposit, Bahia, Brazil, by R. W. Lewis, Jr., Antonio Luis Sarnpaio de Almeida, Antonio Germano Gomes Pinto, Carlos Pies Ferreira, ~l&oJuarez ~&ora,and Francisco Batista Duarte .................... CONTENTS Geothermal instrumentation A device for measuring down-hole pressures and for sampling fluids in geothermal wells, by R. 0. Fournier and A. H. Truesdell .............................................................................................. A device for collecting down-hole water and gas samples in geothermal wells, by R. 0. Fournier and J. C. Morgenstern ........... Geophysics Microearthquakes near Lassen Peak, Calif., by J. D. Unger and J. M. Coakley ........................................... Hawaiian seismic events during 1969, by R Y. Koyanagi and E. T. Endo .............................................. Magnetic and resistivity studies of gold deposits in the Teton National Forest, Teton County, Wyo., by L. A. Anderson .......see Reset direction of rernanent magnetization for Upper Cambrian rhyodacitic welded tuff, Pensacola Mountains, Antarctica, by M. E. Beck,Jr.,andD.L.Schmidt ...................................................................... Chemical and spectrographic analyses of lunar samples from Apollo 12 mission, by C. S. Annell, M. K. Carron, R. P. Christian, Frank Cuttitta, E. J. Dwornik, A. W. Helz, D. T. Iigon, Jr., and H. J. Rose, Jr. .............................................. Semimicro analysis of Apollo 12 lunar samples, by H. J. Rose, Jr., Frank Cuttitta, C. S. Annell, M. K. Carron, R. P. Christian, E. J. Dwornik, A. W. Helz, and D. T. Ligon, Jr. ..................................................................... HYDROLOGIC STUDIES Estuarine hydrology Plant nutrients and the estuary mechanism in the Duwamish &ver estuary, Seattle, Wash., by L. J. Tiey and W. A. Dawson ....... Hydrologic applications of remote sensing Data relay system specifications for Earth Resources Technology Satellite image interpretation, by J. F. Daniel ................. The role of remotely sensed and relayed data in the Delaware River basin, by R. W. Paulson ................................ Ground water Carbonate equilibria distribution and its relation to an area of high ground-water yield in northwest Ohio, by S. E. Norris and R. E. Fidler ................................................................................................ A method for estimating effective porosity in a rubble chimney formed by an underground nuclear explosion, by M. S. Garber ..... Ouality of water Detergents in the streamflow of Suffolk County, Long Island, N.Y., by Ph'f p Cohen, D. E. Vaupel, and N. E. McClymonds ....... Nitrate and orthophosphate in several Nebraska streams, by R. A. Engberg ............................................. Occurrence of phosphorus and nitrogen in Salt Creek at Lincoln, Nebr., by R. A. Engberg and T. 0. Renschler ................. Surface water Prediction error of regression estimates of streamflow characteristics at ungaged sites, by C. H. Hardiion ...................... Precipitation depth-duration-frequency relations for the San Francisco Bay region, California, by S. E. Rantz .................. Floods Origin and sedimentology of 1969 debris flows near Glendora, Calif., by K. M. Scott ..................................... Forest species as indicators of flooding in the lower White River valley, Arkansas, by M. S. Bedinger .......................... INDEXES GEOLOGICAL SURVEY RESEARCH 1971 This collection of 40 short papers is the second published chapter of "Geological Survey Research 1971." The papers report on scientific and economic results of current work by members of the Geologic and Water Resources Divisions of the U.S. Geological Survey. Chapter A, to be published later in the year, will present a summary of significant results of work done in fiscal year 1971, together with lists of investigations in progress, reports published, cooperating agencies, and Geological Survey offices. "Geological Survey Research 1971" is the twelfth volume of the annual series Geological Survey Research. The eleven volumes already published are listed below, with their series designations. Geological Survey Research Prof. Paper 1960 ............................................................. 400 1961 ............................................................. 424 GEOLOGICAL SURVEY RESEARCH 1971 CLARK'S TERTIARY MOLLUSCAN TYPES FROM THE YAKATAGA DISTRICT, GULF OF ALASKA By WARREN 0. ADDICOTT; SABURO KANNO' ; KENJI SAKAMOTO, and DON J. MILLER', Menlo Park, Calif.; Tokyo, Japan; Menlo Park, Calif. Abstract.-Forty-six molluscan taxa described and illustrated by systematic study of mollusks from the Yakataga district, Clark in 1932 from the Oligocene and Miocene part of the Poul Creek from the ~i~~~~~ section at capeyakataga, is and Yakataga Formations, Gulf of Alaska Tertiary province, Alaska, are being prepared by Kanno. will treat many, but not all, of reillustrated. One species from the Poul Creek Formation, Turritella sp., It fired by Merriam in 1941 is also reillustrated. clarrs the species illustrated by Clark (1932), in addition to several aesignments have been reevaluated, in most cases necessitating changes species not previously recorded from the Yakataga district. in the generic cladication of his species. Some of the collections used
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