 | | Report (issue) | | ................................ 10 Miocene Pyroclastic Rocks, Tuffaceous Sandstone, and Volcanic Avalanche...resulted in a complex assemblage of lava flows, pyroclastic flow and fallout tephra deposits, and volcaniclastic...fig. 2, respectively) in a narrow belt that lies south of the Tiefort Mountains and southeast of Bicycle...west of the Avawatz Mountains, and south to the Soda Mountains (Jennings and others, 1962); they are similar...to intermediate to felsic Jurassic rocks farther south in the Cronese Hills (Walker and others, 1990) and |  | | Report (issue) | | .............................. 7 Phyllite unit south of the Big Bend fault ...................................................................... Bald Rock pluton ...........................................Geologic map of the Berry Creek quadrangle, Butte County, California ............................................................. Photograph showing pyroclastic structures in meta-andesite at Bloomer Hill Lookout...matrix and subangular to round fragments in pyroclastic metadacite ................................. |  | | Journal (article/letter/editorial) | | a result of dissolution of intermediate or mafic-rock fragments. At the same time, clay paragenesis with...UysaJ, Golding, and AudsJey 10c ,.1 Borehole Coal mine oI Figure l. 100km I OCK I SURAT 149· BA I...determine the importance of fluid chemistry and rock permeability, and (3) evaluate the formation mechanism... and sandstone were examined for clay and whole-rock mineralogy. Washed core samples were reduced in...oriented grainaggregate mount to determine whole-rock mineralogy, powders of bulk sample were back loaded |  | | Journal (article/letter/editorial) | | and Kobe Alumina (Associates) Pty. Ltd. (10%) to mine, transport and refine bauxite initially from its...and Worsley Alumina's facilities. Tunnell Road mine site, just north of Mt. Saddleback, ~ 100 km SSE...7 Mt of bauxite will be mined annually. From the mine, crushed bauxite is transported 51 km via a cable...is railed for shipment (Fig. 1). The Tunnell Road mine site has an average annual rainfall of ~ 730 mm...from 40 ° C in summer to < 20 ° C in winter. The mine site is within a State Forest but is surrounded |  | Jackson, M. D., Chae, S. R., Mulcahy, S. R., Meral, C., Taylor, R., Li, P., Emwas, A.-H., Moon, J., Yoon, S., Vola, G., Wenk, H.-R., Monteiro, P. J. M. (2013) Unlocking the secrets of Al-tobermorite in Roman seawater concrete. American Mineralogist, 98 (10) 1669-1687 doi:10.2138/am.2013.4484 | Journal (article/letter/editorial) | | mix. Trace element studies confirm that the pyroclastic rock comes from Flegrean Fields volcanic district...high-performance composite constructed from lime and pyroclastic rocks, provides a unique temporal window to address...caldera rim; red areas: volcanic craters. lanic pyroclastic rock, preparation of lime, installation techniques...concrete is determined as weight percent lime and pyroclastic rock through macroscopic observations of the present...concept of concrete produced with lime and pyroclastic rock, which opens 1671 future perspectives for |  | | Book | | rocks can be distinguished in the sequence of pyroclastic rocks, carbonatites, melilite-bearing rocks,...primary literature and provide formal names for rock samples based on petrographic analyses. Work on...zum Gesteinbestimmen (Tables for Petrography and Rock Determination). It was at this point that Streckeisen........................................ 6 2.2 Pyroclastic rocks and tephra ................................................................. 7 2.2.2 Pyroclastic deposits ................................... |  | | Report (issue) | | l-A. Sierra Blanca limestone in Santa Barbara County, CaliW. Walker. 1950. 5 pp., 1 pi. Price 25*. ...Price 25tf. Commercial "black granite" of San Diego County, California, by Richard A. Hoppin and L. A. Norman...of the San Dieguito pyrophyllite area, San Diego County, California, by Richard H. Jahns and John F. Lance...Price 25*. Geology of Bitterwater Creek area, Kern County, California, by Henry H. Heikkila and George M...lithium-bearing pegmatites of the Pala district, San Diego County, California, by Richard H. Jahns and Lauren A. |  | | Report (issue) | | northwestern Mexico. This province occupies the area south of the Great Basin physiographic province between...just south of the United States-Mexico border. The Lost Trigo fault near Cibola in Yuma County, Arizona...southwest side of the Big Maria Mountains in Riverside County, California. The feature is 5.5 km long and 92...near Lake Havasu. The graben trends nearly north-south, is slightly arcuate, and about 5 km long and 250...the western side of the Black Mountains, Mohave County, Arizona, forming a topographic depression with |  | | Book | | ::ccceeseeeees 14 US 13: Maryland state line—North Carolina state line............ 28 WSei- Tappanannock—...ceeeeecceree 89 US 1, Interstate 85: Petersburg— Nowth Carolina state (ines oe. Shee sss itd isce kyon sok 90...ecechesrcnce oper ponesnsqusconecnon: 134 US Zon C Mine per aeAmerst <..22h- con ccesescecnas ces sass ...Ridge............... 193 US 15: James River—North Carolina state line..........0.0.0...00.. 197 WSEZ9 2Amherst=—D...mcr erences. hoon oe 231 US 21: Wytheville—North Carolina state line ....................... 235 US' 58> |  | | Report (issue) | | PHYSICAL SCI. COUNTY REPORT 7 GEOLOGY AND MINERAL RESOURCES OF IMPERIAL COUNTY, CALIFORNIA Uk ... R&daubced. oj COUNTY IMPERIAL Gedifansua By Paul K. Morton Geologist COUNTY REPORT California...Sand Hills, as viewed toward the northwest from County Park. The prevailing wind direction, as indicated...PREFACE vi ABSTRACT vii INTRODUCTION Summary of County 1 Mineral Trends and Needs Principal Geographic... Water Resources GEOLOGY 13 General Features Rock Units 1 1 Precambrian(?) rocks _ 1 Chuckwalla |  | | Report (issue) | | 1983 7. Moye, F. J. and E. King 1980; and D. Jennings 1981 8. Atwater, B. F. a, and E. King 1980;...Lake, by Grace McCarley and R. Wade Holder. Country rock (the granite of Daisy Trail) is riddled by the Cody... Seventeenmile Mountain quadrangle, about 1 mi south of Twentythree Mile Creek. iv INTRODUCTION The...Okanogan and Ferry Counties, is bounded on the south and east by the Columbia River, on the west by the...sketched the distribution of eight of the principal rock types on a primitive 1:250,000scale bese. Subsequent |  | Wang, Xisheng, Chu, Guoqiang, Sheng, Mei, Zhang, Shuqin, Li, Jinhua, Chen, Yun, Tang, Ling, Su, Youliang, Pei, Junling, Yang, Zhenyu (2016) Millennial-scale Asian summer monsoon variations in South China since the last deglaciation. Earth and Planetary Science Letters, 451. 22-30 doi:10.1016/j.epsl.2016.07.006 | Journal (article/letter/editorial) | | Millennial-scale Asian summer monsoon variations in South China since the last deglaciation Xisheng Wang a...about ASM variations since the last glaciation in South China largely relies on several precisely-dated...and climatic changes in the tropical–subtropical South and East Asia since the last glaciation. Here we...2013; Sun et al., 2015; Liu et al., 2015a). In South China, the paucity of reliable paleoclimatic records...environmental and climatic changes in tropical–subtropical South and East Asia since the last glaciation (Chu et |  | | Journal (article/letter/editorial) | | commodity section corresponds to the common host rock lithologies (magmatic, sedimentary, and metamorphic)...research and training in geosciences. Metamorphic host rock lithologies and commodities are addressed by different...handled in a careful balance combined with “noseon-rock methods” (hammer and laptop). Results obtained by...through time. It is the terminology of the host rock lithology and the ore-bearing structures on one...scheme”) with lines (commodities) and columns (host rock and host structure) so that the relations between | | | Journal (article/letter/editorial) | | commodity section corresponds to the common host rock lithologies (magmatic, sedimentary, and metamorphic)...research and training in geosciences. Metamorphic host rock lithologies and commodities are addressed by different...handled in a careful balance combined with “noseon-rock methods” (hammer and laptop). Results obtained by...through time. It is the terminology of the host rock lithology and the ore-bearing structures on one...scheme”) with lines (commodities) and columns (host rock and host structure) so that the relations between |  | | Report (issue) | | Because of the emphasis of much modern research, rock-forming minerals are given proportionately more...pyroxenes, not only because of their importance as rock-forming minerals but because they have attracted...Christchurch and Dunedin, and at definitions of the many rock names referred to. Because DSIR Geology and Geophysics...Island Tin Range Pon Peg11ua Figure 3. Map of South Island with most of the localities Zealand. o....From fissure in hydrothermally altered rhyolitic rock, drillhole 225, Wairakei. (SEM photograph; scale |  | | Report (issue) | | Ordovician clastic sequence, and distribution of some rock types. ..........In pocket Map showing surface geology...Silurian clastic sequence, and distribution of some rock types. ..........In pocket Map showing structure...Silurian-Devonian carbonate sequence, and distribution of some rock types. ........In pocket Generalized columnar section...Devonian clastic sequence y and distribution of some rock types. .......... In pocket Map showing structure....In pocket Map of the Leidy gas field, Clinton County, Pa. ........ o ........... 95 Map showing general |  | | Report (issue) | | Berryessa to the southeast, Suisun Bay still farther south (lower right corner), and the Pacific Ocean to the...Survey 97 Seismic-reflection investigations at Castle Rock Springs in the Geysers geothermal area, by Roger...Faulting and ore controls at the Culver-Baer mine, Sonoma County, California, by Eugene V. Ciancanelli, Cascadia...complex structural high associated with the Castle Rock Springs area of the Geysers steam field 10. Map...intensity, susceptibility, and Koenigsberger ratio for rock types of Clear Lake Volcanics 37. Chart showing |  | | Report (volume) | | Distribution Branch, U.S. Geological Survey, 604 South Pickett Street, Alexandria, VA 22304 CONTENTS...Early, Middle, and Late, and fo'!' epochs. Informal rock terms lover 1 middle 1 and upper may be used where...of all words used in forming the names of formal rock-stratigraphic units be capitalized. The Commission's...or "late", as used by an author with the age of rock units, is changed to "lower" or "upper." The age...74, Ph miles east of Dutchtown, Cape Girardeau County, Mo. Type section cut by northtrending fault with |  | Stephenson, D., Bevins, R. E., Millward, D., Highton, A. J., Parsons, I., Stone, P., Wadsworth, W. J. (1999) References, Glossary & Index. In Caledonian Igneous Rocks of Great Britain (Geological Conservation Review Series - Geological Conservation Review No. 17. Joint Nature Conservation Committee, Peterborough. p.575-648. | Book (chapter) | | Townsend Tuff Bed (Lower Old Red Sandstone) in South Wales and the Welsh Borders. Journal of the Geological...(1981) Copper-bearing rocks at Cairngarroch Bay, south-west Scotland. Mineral Reconnaissance Programme...Arthur, M. J. (1983) A possible extension of the South Leicestershire Diorite complex. Report of the Institute...Balsillie, D. (1932) The Ballantrae Igneous Complex, South Ayrshire. Geological Magazine, 69, 107-31. Balsillie...observations on the Ballantrae Igneous Complex, South Ayrshire. Geological Magazine, 74, 20-33. Barber |  | | Report (volume) | | Early, Middle, and Late, and for epochs. Informal rock terms lower, middle, and upper may be used where...of all words used in forming the names of formal rock-stratigraphic units be capitalized. All the geologic...or 11 late," if used by an author with the age of rock units, is changed to 11lower" or 11upper." The age...Bull. 1060-D, p. 193, 252-253, pl. 7. In Nemaha County, Kans., member is basal unit of Howard limestone... Greenwood County. Aaron Slatet Precambrian or Paleozoic: Central northern North Carolina and central |  | | Report (issue) | | Isotope studies Mineralogy Petrology Paleontology Rock mechanics Storage and retrieval of geologic data...changes across part of the Carolina slate belt-Charlotte belt boundary, North Carolina and Virginia, by O. T...Pliocene ash-flow tuff, Buzzard Creek area, Harney County, Oreg., by G. W. Walker.________ Petrography and...__________________-__-__------___----___--_ 79 83 89 106 123 Rock mechanics Some relations between stress, geological...structure, and underground excavation in a metamorphic rock mass west of Denver, Colo., by F. T. Lee, T. C. |  | | Report (issue) | | a changing world Hydrologic Consequences of Hot-Rock/Snowpack Interactions*^ at Mount St. Helens Volcano...Valley Dr. • Salt Lake City, Utah-2222 West, 2300 South (books and maps available for inspection only) •...Geological Survey Hydrologic Consequences of Hot-Rock/Snowpack Interactions at Mount St. Helens Volcano...PUBLICATION DATA Hydrologic consequences of hot-rock/snowpack interactions at Mount St. Helens Volcano...and shows erosion (closely spacedfurrows) by pyroclastic flows and surges. Photo by Austin Post, June |  | | Report (issue) | | Hydrologic Consequences of Hot-Rock/Snowpack Interactions at Mount St. Helens Volcano, Washington, 1982-84...1. Nature of Depositional Contacts between Pyroclastic Deposits and Snow or Ice ...................... 53 Thomas C. Pierson and Richard B. Waitt 5. Rock Avalanches, Rockfalls, and Associated Processes...of slopes of Sakurajima volcano with incandescent rock fragments during nighttime .......................Photograph showing pyroclastic surges descending snow- and ash-covered slopes of the south sector of Mount |  | | Journal (issue) | | 3579) to Mining Congress Journal, DEVELOPMENT IN ROCK USES CREATED MINING NEWSMONTH SPOTLIGHT ON SURFACE... of Minerals Analysis, Policy and National Mine Health and Safety Academy and the remainder of...Federal Mine Safety and Health Act of 1977 and its standards to working conditions on mine sites and...mines where the responsible employer is neither a mine operator nor an independent contractor. In clarifying...construction facilities to OSHA unless the borrow pit is on mine property. Carter would increase U.S. wilderness |  | | Journal (volume) | | centers of the state; exhibits of minerals, rocks, mine models, scientific lurgy, etc. ; a service...the wise utilization of California's mineral and rock resources. The pays tific investment in geologic...the state. No square mile should be overlooked. No rock exposure should lie unobserved. CALIFORNIA JOURNAL...zones, parks, defense, etc., so that mineral and rock deposits which are becoming increasingly useful...areas two degrees east-west by one degree north-south, and will be distributed separately or assembled |
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