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| end of the Crown Street tunnel in Liverpool. The 291 yard single track tunnel was built in 1829 by George...Photo Nick Catford Back page upper: The eastern bore of Victoria tunnel in 1970. A Mersey Docks and Harbour...just travelled through the tunnel on its way to Edge Hill Yard. The tunnel was still used by the occasional...erected right up to the portal. To see what this tunnel portal looks like today see page 24. Photo Keith...six months of the year have provided Sub Brit in Tunnel and Spring Quarry that preceded it. We even members |
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| ... ... ... (2) The Maasive Conslomerate of tbe Mt. Farrell Ridge ... ... (3) The White Hawk S.n_noo...BODBi TO THB 39 TYPBS ••• . .. BoD. . . OP , ~ MT. FABRaLL. A.-Lead orea, The Spathic Lead Ores The...Flank of Mt. Farrell ... ... .. ....... (8) The Tullibardine Co...... . (9) The White Hawk District: (a)... ... (17) The Sections on the Northern Slopes of Mt. Murchison: (a) The 40-acre Sections, 2865 nod 2886...and:JOn (e) The Barytes Lode ... ... ... (18) The Eastern Sections on the Murchison River: (a) Tbe Osborne |
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| PRELIMINARY REPORT ON THE KETCHIKAN MINING DISTRICT, ALASKA WITH AN INTRODUCTORY SKETCH OF THE GEOLOGY OF...PRELIMINARY REPORT ON THE KETCHIKAN MINING DISTRICT, ALASKA WITH AN INTRODUCTORY SKETCH OF THE GEOLOGY OF...glaciers Former glaciation The Ketchikan mining district General description History Geology Introduction...Amphibolite 3 44 CONTENTS. 'The Ketchikan mining district—Continued.4 Geology—Continued. Page. Bed-rock...68 4 68 4 5 CONTENTS.4 The Ketchikan mining district—Continued.4 Economic geology—Continued. Descriptions |
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| districts.____-_--_-----_____-______---_ Bohemia district.._i_-_-__--_---_-_--_---___-______-_____---_--...areas and mining districts Continued. Bohemia district Continued. Mineral deposits._________________...veins__.____-__.___--__-__. Gold-quartz and gold-calcite-quartz veins___________ Stibnite-pyrite-quartz...areas and mining districts Continued. Bohemia district Continued. Mines and prospects Continued. Tall...___-_-___.-______-_-_____.__________._ Quartzville district..______-_----._______-_____-.-________-_-Location |
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| surface lowering of limestone in the southern Pennines: an example in the Wye catchment, Derbyshire, UK V.J...sequence that was cut during excavations for a railway tunnel (in 1865) has provided a means of assessing limestone...and results from a trial locality in the Peak District, Derbyshire in the context of other published...valley side of the River Wye, Derbyshire, UK, at an elevation of approximately 240 m OD where the bedrock...stage Monsal Dale Limestone Formation comprises an upper pale limestone facies and a lower dark limestone |
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| Geology and Quicksilver Deposits of the New Almaden District Santa Clara County California GEOLOGICAL SURVEY... Geology and Quicksilver Deposits of the New Almaden District Santa Clara County California By EDGAR H. BAILEY...1914Geology and quicksilver deposits of the New Almaden district, Santa Clara County, California, by Edgar H. Bailey...1914Geology and quicksilver deposits of the New Almaden district, Santa Clara County, California. 1963. (Card 2)...California. Division of Mines. III. Title : New Almaden district, Santa Clara County, California. (Series) For |
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| 235 Includes the. Leadville, Colorado, mining district. Prepared in cooperation with the Colorado State...transverse syncline- ____----_----___ Monocline of Upper Long and Derry Hill______ Dyer monocline- _----...Faults of Lake Isabelle Amphitheater. Faults of the eastern section _________________ Northern part of Mosquito...north of Empire Hill________ Parallel faults on Upper Long and Derry Hellena fault _ _ ________________________...central part of the Leadville disFaults in the Nevada Tunnel.. ____ _______ Bowden and related faults in the |
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| Director Bulletin 745 THE KOTSINA-KUSKULANA DISTRICT ALASKA BY FRED H. MOFFIT AND J. B. MERTIE,...sedimentary formations___________ _ Chitistone limestone (Upper Triassic)_____________ Character and distributi...correlation _..____ _____________ Kuskulana formation (Upper Triassic)____________ Character and distribution...____ Age and correlation______________________ Upper Jurassic rocks __ ___________________ Character...Intrusive rocks_____________________________ 67 Pre-Upper Triassic igneous rocks_______________ 67 Basic diorite |
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| 77 GEOLOGY AND ORE DEPOSITS OF THE PARK CITY DISTRICT, UTAH BY JOHN J\IIASON BOUTWELL WITH CO)l"TRIB"CTIO)JS......................... . History of Park City district ................. , .................................. . Descriptive geology of the Park City district ................................................ CONTENTS. Descriptive geology of the Park City district-Continued. Page. Sedimentary rocks-Continued.... CONTENTS. 5 Descriptive geology of the Park City district-Continued. Page. · Metamorphism........ . . . |
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| DIRECTOR ECONOMIC GEOLOGY OF THE BINGHAM MINING DISTRICT, UTAH By JOHN MASON BODTWELL WITH A SECTION ON...ON AREAL GEOLOGY By ARTHUR KEITH AND ** AN INTRODUCTION ON GENERAL GEOLOGY" By SAMUEL FRANKLIN EMMONS...DIRECTOR ECONOMIC GEOLOGY OF THE BINGHAM MINING ^DISTRICT, UTAH By JOHN MASON BOUTWELL WITH A SECTION OE"...... 25 PART I. AREAL GEOLOGY OF THE BINGHAM DISTRICT, BY ARTHUR KEITH. Geography...............--....PART II. ECONOMIC GEOLOGY OF THE BINGHAM MINING DISTRICT, UTAH, HY JOHN MASON BOUTWELL. Introduction.. |
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| write to the Geological Surrey in Washington for an official mailing label to use in returning it UNITED............. Bedding-plane faults of the Eureka district Interpretation of original conditions along the...deposits................ Deposits of the Sylvanite district......................... ' Types of deposits....structural features............ Deposits of the Eureka district .............................. Types of deposits......................................... Eureka district...................'........................., |
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| MONZOMTE POWWRT GEOLOGIC MAP OF HAROLD D. ROBERTS TUNNEL AREA, COLORADO Adapted and modified from T. S....Roberts Tunnel, Colorado: West Portal to Station 468+49 Abstract: The Harold D. Roberts Tunnel is a 23...dog-leg diversion tunnel designed to transport water from Dillon to Grant, Colorado. The tunnel passes beneath...From the west portal to Station 468 -f- 49 the tunnel encountered the following lithologic and structural...Station 180 + 00, folded and faulted Jurassic to Upper Cretaceous continental and marine sedimentary rocks; |
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| INTRODUCTION. reports are those on the Mercur district, by J. E. Spurr and S. F. Emmons; the Bingham...Bingham The senior author, J3. S. Butler, began district, by J. M. Boutwell, Arthur Keith, and field work on...deposits of Utah in the S. F. Emmons; the Park City district, by J. M. FIELD .WORK AND AUTHORSHIP. summer...author, G. F. Loughlin, began work in the Tintic district in 1911 in collaboration with Waldemar Lindgren...the Tin tic and Thomas ranges, of the Leamington district, and of districts in theW asatch Range. Several |
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| CELLA. EOU,S: itrate dcpo i in southern Idaho and eastern Oregon, by G. R. Mansfield (published July 26,...Diego County, Cal., by W. T . chall er (published J an. 15, 1916)-- ----- - - - . - - - - - - - - - . -...Pin mining district, Clark ounty, N v.. Contorted flow structure in the rhyolite of, uck r an yon, Qr g... . Geolo<>ic r connaissan c map of the ottonwood-Am rican Fork Inl.ru ng region, tab, including a portion...rn Idaho showin<> main tributaries of nake River an d principal lo a l.iti s at which plac r work has |
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| and Zinc Deposits in Goodsprings (Yellow Pine) District, Nevada By CLAUDE C. ALBRITTON, ]R., ARTHUR RICHARDS...-------------------Geology of the Goodsprings district, by Claude C. Albritton, Jr_________ Introduc...map of the southeastern part of the Goodsprings district, Nevada. 2. Generalized columnar section of the...containing lead and zinc deposits in the Goodsprings district. 3. ~aps and diagrammatic sections illustrating...3. Anchor mine. A, Sketch of galena and white calcite along thrust. B, Detail of mineralization in South |
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| ...................................... Juneau district.................................................Inlet.................................. Ketchikan district............................................. Kasaan........................................ Skagway district...................................................... Wrangell district.............................................. Sitka district...................................................... Ketchikan district............................................. Kasaan |
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| is now nearing completion and which will include an account of the region herein described. Owing to...though expressing the general features of the district, lack the detail desirable for the laying out...very careful mapping. A portion of the Park City district, mapped by Boutwell, Irving, and Woolsey, is shown...the region discussed to that district. The map of the Park City district as a whole is published in Professional...Wasatch Mountains just southwest of the Park City district. Its approximate limits are parallels 40° 30' |
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| DESCRIPTION OF THE FAIRBANKS DISTRICT BY L. M. PRINDLE AND F. J. KATZ AND AN ACCOUNT OF LODE MINING NEAR...Geologic history_______ GEOLOGY OF THE FAIRBANKS DISTRICT, by L. M. PRINDLE and F. J. KATZ_ Descriptive...61 62 CONTENTS. 5 GEOLOGY OF THE FAIRBANKS DISTRICT, by L. M. PRINDLE and F. J. KATZ Continued. Descriptive...87 89 D CONTENTS. GEOLOGY OF THE FAIRBANKS DISTRICT, by L. M. PRINDLE and F. J. KATZ Continued. Economic...114 Methods of placer mining in the Fairbanks district, by F. J. Katz____________________________ 115 |
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| Director Bulletin 866 GEOLOGY OF THE TONSINA DISTRICT, ALASKA BY FRED H. MOFFIT UNITED STATES GOVERNMENT...1. Geologic reconnaissance map of the Tonsina district, Alaska.. In pocket FIGURE 1. Plan and elevation...elevation of auriferous quartz veins and exploratory tunnel on the Wetzler claims on Hurtle Creek._______ 28... GEOLOGY OF THE TONSINA DISTRICT, ALASKA By FRED H. MOFFIT ABSTRACT The Tonsina district is a part of the...Tonsina, and Tiekel Rivers and their upper valleys. This district is an area of rugged mountains, which reach |
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| minerals are oxidized to shallow depths, and the upper parts of many veins have been secondarily enriched...districts and copper sulfldes in the Antamina-Contonga district contain large reserves of possibly minable material...world, comprising thousands of ore deposits, covers an area including Peru, Bolivia, and northern Chile...the southeastern part of Ancash (fig. 1). One district in Huanuco lies along the southeast border of...Rio Pativilca, or as it is known locally in its upper reaches, the Rio Chiquian; this drainage system |
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| both men and money for other enterprises has given an impetus to prospecting for lode deposits which has...productive mines. The writer visited the lode-mining district late in the open season of 1912 to study the conditions...summary of the bedrock geology of the Fairbanks district has been abstracted from a report by Prindle and... F. J., Detailed description of the Fairbanks district: U. S. Geol. Survey Bull. 525, pp. 59-77,1913...The greater part of the bedrock of the Fairbanks district is formed of metamorphic rocks which have been |
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| 'Geology of the Weald,' and some observa tions on the Upper Cretaceous rocks were incorporated by A. J. Jukes-Browne...Osborne White, who was already acquainted with tl1e district, has re.-examined the principal sections for the...BEDS: Gault and Upper G-reensand... CHAPTER V.-THE CHALK: Lo,ver, l\'liddle, and Upper 31 ,,�oolwich...II.-Sketch Map of the Brighton and Worthing District ..• PLA.!'E IIJ•......:.Chalk Escarpment near...Barns (by the roadside) and 2 37 Fulking are on Upper Greensand. Cultivated ground in mid view is on Lower |
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| Jurassic) 4 to 10. of birds and mammals; of cycads, an order of palmlike plants (in Triassic); and of angiospermous...deposition in any area produces there what geologists term an unconformity. Many of the time divisions shown above...OTIS SMITH. The United States of America comprise an area so vast in extent and so diverse in natural...afforded in 1915 to render service of this kind to an unusually large number of American citizens as well...the broad, well-watered Mississippi Valley, where an abundance of rainfall is indicated by the numerous |
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| Reed, M.A., So.D., F.G.S. (With Plates 1 and 2 and an Append ix ..... by Stanley Smith, M.A., D.Sc.,...West M.A. of India. 249 327 in 328 343 Nagpur District By W. D. (Cantab.), Assistant Superintendent...Jaunsar and Krol district waZa. (sheet and Height difference, series. Syncline of Upper Tal 8,098 feet...bedded, sandy limestone overlying pale quartzites. Upper Tals. Current-bedding concave upwards. Kigali Dhar...Orissa Coal : Gangpur, Bihar and Orissa Belul district, Central Provinces Copper -ore : Kurnool, Madras |
Eastern tunnel, A9 motorway tunnel, Bosruck Mt, Spital am Pyhrn, Kirchdorf an der Krems District, Upper Austria, Austria