Contributions to Stratigraphy 1965 GEOLOGICAL SURVEY BULLETIN 12,24 This volume was published as separate chapters A-J UNITED STATES DEPARTMENT OF THE INTERIOR STEWART L. UDALL, Secretary GEOLOGICAL SURVEY William T. Pecora, Director Library of Congress catalog-card No. GS 66-235 CONTENTS [Letters designate the separately published chapters] (A) Changes in stratigraphic nomenclature by the U.S. Geological Survey, by George V. Cohee and Walter S. West. (B) Clays Ferry Formation (Ordovician) a new map unit in south-central Kentucky, by Gordon W. Weir and Robert C. Greene. (C) The Lexington Limestone (Middle Ordovician) of central Kentucky, by Douglas F. B. Black, Earle R. Cressman, and William C. MacQuown, Jr. (D) Galloway Creek Limestone and Ashlock and Drakes Formations (Upper Ordovician) in south-central Kentucky, by Gordon W. Weir, Robert C. Greene, and George C. Simmons. (E) Geyser Creek Fanglomerate (Tertiary), La Sal Mountains, Eastern Utah, by W. D. Carter and J. L. Gualtieri. (F) Borden Formation (Mississippian) in south- and southeast-central Kentucky, by G. W. Weir, J. L. Gualtieri, and S. 0. Schlanger. (G) The Yakima Basalt and Ellensburg Formation of south-central Washington, by J. W. Bingham and M. J. Grolier. (H) Stratigraphy and regional relationships of a reference section for the Juana Lopez Member, Mancos Shale, in the San Juan Basin, New Mexico, by Carle H. Dane, William A. Cobban, and Erie G. Kauffman. (I) Harrodsburg Limestone in Kentucky, by E. G. Sable, R. C. Kepferle, and W. L. Peterson. (J) Stratigraphic names in the New London area, Connecticut, by Richard Goldsmith. o Changes in Stratigraphic Nomenclature by the U.S. Geological Survey 1964 By GEORGE V. COHEE and WALTER S. WEST CONTRIBUTIONS TO STRATIGRAP H Y GEOLOGICAL SURVEY BULLETIN 1224-A UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1965 UNITED STATES DEPARTMENT OF THE INTERIOR STEWART L. UDALL, Secretary GEOLOGICAL SURVEY William T. Pecora, Director For sale by the Superintendent of Documents, U.S. Government Printing Office Washington, D.C. 20402 - Price 30 cents (paper cover) CONTENTS Listing of nomenclatural changes. __ __. ._-_-_-___-_--_-___-_-___ Al New names adopted for official use in U.S. Geological Survey reports. 2 Previously used names adopted for official use in U.S. Geological Sur­ vey reports.. _ _____ _ _______-_--__-_-_____-_-____-_________ 6 Stratigraphic names revised_______--_-_---___--_______________-_ 10 Changes in age designation. ..___1_1_'__.____ _-____-__.._____.____ 16 Stratigraphic names reinstated. ___--___---_____-_____..__________ 22 Stratigraphic names abandoned..-..-.------.--------.. 22 Denny Creek Granodiorite Gneiss, Browns Pass Quartz Monzonite, and Kroenke Granodiorite, Mount Harvard quadrangle, Colorado, by Fred Barker and M. R. Brock.. ___ _________---_--_--____--______- _ 23 Denny Creek Granodiorite Gneiss. --_._--___-__-____.-_::____:__ 23 Browns Pass Quartz Monzonite- ________________________________ 25 Kroenke Granodiorite _ ______________ ____________..._____ ____ 26 South Pass Formation on the southwest flank of Wind River Mountains, Wyoming, by Norman M. Denson, Howard D. Zeller, and E. Vernon Stephens. ___ _ _ __. :____ . _ _ __ ___ _____ 27 Nomenclature and age of formations in the Ansonia quadrangle, Fairfield and New Haven Counties, Connecticut, by Crawford E. Fritts. _______ 30 Belted Range Tuff of Nye and Lincoln Counties, Nevada, by K. A. Sar- >gent, D. C: Noble, and E. B. Ekren __ .-__._ - _ ______ _______ 32 Belted Range Tuff. _____ _______ _________ ___ ________ ___:__ 33 Tub Spring Member: _:____________________'_____..________ 34 Grouse Canyon Member. ______ _-_-_-_._____.___..________ 36 Salyer and Wahmonie Formations of southeastern Nye County, Nevada, by F. G. Poole, W. J. Carr, and D. P. Elston.. ________ ____..__. 36 Stratigraphic relations _ .. _ -____--_--_-_--_-__-_-__--__________ 40 Lithologic description. ____-_______-_-_-_--:_____-__________:___ 40 Chemical composition. __ ___-_____----_-----_______---- _..__ _:___ 43 Age, ___._-__-__---_.---_____:.--:_-- _ _.- __ : _ 43 Paintbrush Tuff and Timber Mountain Tuff of Nye County, Nevada, by Paul P. Orkild. _ __- _ _ _ _.____:-- _--______. _ _ __ .___::__ 44 Paintbrush Tuff ___- ____r- __ .._..._ ::_-..__. _ . _ . _____ 45 Pah Canyon Member________-- _-__-.__-_____________:___ 49 Timber Mountain Tuff __ ___._ _____-_.- _-__.___._ _ __________ 49 Rainier Mesa Member. -_-_-__-__.--_-_-___.___-.__._-____ 50 Tuff of Cat Cany on. _ _ _ ... _ __...__ _ _.___.. _ ___ _ 50 Tuff of Transvaal. _ . -. _-_- _ _ _ _-_ _'. _ : _-i _ _ _ . _ __________ 50 Ammonia Tanks Member ___ ...^.. ............... _..___.__ 50 Age_____. ___..-__-._ . -_______-._.--___...._.__...._...____ 51 Age of the Eleana Formation (Devbman'arid Mississippian) in the Nevada Test Site, by F. G. Poole, Paul P. Orkild, Mackenzie Gordon, Jr., and Helen Duncan ______ _-^____-_.-_ __------_---_-----______________ 51 ...... m IV CONTENTS Page Marinette Quartz Diorite and Hoskin Lake Granite of northeastern Wis­ consin, by William C. Prinz ___ __________________________________ A53 Mashel Formation of southwestern Pierce County, Washington, by Kenneth L. Walters __ ____________ _ __________________________ 55 Character and thickness________________________________________ 55 Age and climatic implications--__-_____---_----__---___________- 58 Distribution. __ ________ _ ______ _ ________________________ 59 -. Mode of deposition- ___________________________________________ 59 Precambrian and Lower Cambrian formations in the Last Chance Range area, Inyo County, California, by John H . Stewart _ _ ______ 60 Miocene and Pliocene rocks of central Wyoming, by Norman M. Denson. 70 References _ ____ ____________ _____________.____-_-'________-- 74 ILLUSTRATIONS .... FIGURE 1. Map of Mount Harvard quadrangle, Colorado, showing gen­ eralized distribution of major Precambrian intrusive rocks. A24 2. Geologic map of the South Pass area, Wyoming.___________ 28 3. Geologic map showing the distribution of the Tub Spring and Grouse Canyon Members of the Belted Range Tuff in the northeastern part of the Nevada Test Site and the south­ eastern part of the Las Vegas Bombing and Gunnery Range. 34 4. Stratigraphic nomenclature of the Indian Trail Formation and Belted Range Tuff.________.____._____. 35 5. Index map of Nevada Test Site showing topographic quad­ rangles and distribution of Salyer and Wahmonie Forma­ tions. _ . __ _____ 37 6. North-south section in Cane Spring quadrangle showing rela­ tions between volcanic units.__________-_-_.-_____ 39 7. Map of Nevada Test Site and vicinity showing localities re­ ferred to in text___ 45 8. Stratigraphic nomenclature of Tertiary volcanic rocks of the Nevada Test Site______________________ 47 9. Schematic diagram of the Tertiary volcanic rocks ________ 48 10. Index map of southwestern Pierce County area, Washington-. 55 11. Index map showing location of measured sections in Last Chance Range area, California.________________.. 60 12. Precambrian and Lower Cambrian formations in Last Chance . Range area. _______________________________ 61 ,., 13. Columnar section of Deep Spring Formation and related strata in northern Last Chance Range area. ___________ 64 14. Columnar sections and correlations of Lower Cambrian strata in Last Chance Range area. ___________________________ 66 TABLE Pag« TABLE 1. Chemical and modal analyses of Denny Creek Granodiorite : Gneiss, Browns Pass Quartz Monzonite, and Kroenke Granodiorite, Mount Harvard quadrangle, Colorado...__.-- A25 CONTRIBUTIONS TO STRATIGRAPHY CHANGES IN STRATIGRAPHIC NOMENCLATURE BY THE U.S. GEOLOGICAL SURVEY, 1964 By GEORGE V. COHEE and WALTER S. WEST LISTINGS OF NOMENCLATUBAL CHANGES In the following listings, the changes in stratigraphic nomenclature are grouped together in the categories of (1) new names adopted, (2) previously used names adopted, (3) names revised, (4) changes in age designation, (5) names reinstated, and (6) names abandoned. The stratigraphic names involved in change are listed alphabetically under each category. The age of the unit, the area in which the name is employed, the title of the report, and the publication in which the change is described are given. - A I A2 CONTRIBUTIONS TO STRATIGRAPHY «~.2 CQ J9 13 S & PM S IPS a 823 FL, PH W 1 > a MX 2 a 3.3 ** 6 Il|«2gll|^l ra WM"9 uSaB_'S SliSlg|'C-2° -Sofl MaSjg . iSril'i |Q!. f^S H^0« fl - gSd^t^ -gS §js<o ilSift-W o |i&!3 || °li| iiiiii|gQij|f Hi «§sl >.»sa&2 Ow |ggPQ»J33«CQ fe&H !Illfl-:l!ll!l o 03 11 III a^sllafg^ 2 <S ,Xslr-\ d ?rft*s (3 03 ,-, fiSlmSl&F^o gP®"5 W g 3o o o p H O 9 Pnd CQ .2 S W EH H fc m W « o Hyden, H. McAndrews, and Ri H Tschudy. Foote Creek Formation _ ..... Late Cretaceous and ...do-. ............. ..do........ ..... ...... 1965 Paleocene. Frenchie Creek Bhyolite (of Pony Geology of the. Frenchie Creek quadrangle, Bull. 1179........ ........ 1964 Trail Group). north-central Nevada, by L. J. P. Muffler. [1965] Gold Flat Member (of Thirsty .....do...... ........... Thirsty Canyon Tuff of Nye and Esmeralda f>rf\f T^arwir 47** T^ 1964 Canyon Tuff). Counties, Nevada, by D.C. Noble, R. E. Anderson, E. B. Ekren, and J. T. 0' Connor. Grier Limestone Member (of Middle Ordovician .... Kentucky.. __ . __ Geology of the Tyrone quadrangle, Kentucky, Map GQ-303. _ .. ..__. 1964 Lexington Limestone). by E. B. Cressman. Marinette Quartz Diorite and Hoskin Lake Granite of northeastern Wisconsin, by W. C. Prinz. Kirkham Hollow Volcanics ........ middle Pliocene or Geology of the Garns Mountain quadrangle, Bull. 1205. __ ... _ . 1965 younger. Bonneville, Madison and Teton Counties, Idaho, by M. H. Staatz and H. F. Albee. Paleocene through Reconnaissance geology of Admiralty Island, Bull.