 | | Report (issue) | | fossils, Lakefield quarry. 25 Brachiopod, Gastropod and Nautiloid fossils, Lakefield quarry. 27 Pelecypod...Trilobite and miscellaneous fossils, Lakefield quarry. 29 An example of unconformity between limestone...cliffs just outside Bancroft. View from Eagles Nest lookout. Marble tectonic breccia on Monck Road. Bicroft...gneiss with nepheline pegmatite, Golding-Keene quarry on the York River. Corundum, Lily Robertson Cooney...Trenton limestone, much of it from the Longford quarry a t Longford Mills on Lake Couchiching. The customs |  | | Report (volume) | | Western Part of the Morrison Quadrangle Jefferson County, Colorado GEOLOGICAL SURVEY BULLETIN 1251-E...Western Part of the Morrison Quadrangle Jefferson County, Colorado By D. J. GABLE CONTRIBUTIONS TO GENERAL...WESTERN PART OF THE MORRISON QUADRANGLE JEFFERSON COUNTY, COLORADO By D. J. GABLE ABSTRACT The Morrison...The part of the Morrison quadrangle, Jefferson County, Colo., in which Precambrian rocks are exposed...quartz-plagioclase gneiss from outcrop 300 ft south of old quarry in Bear Creek Canyon. Kaolinite-bearine gneiss |  | | Report (volume) | | Divide nos. 1 and 2 claims_______________________ Lookout no. 1 claim____________________________ Pegmatite...______________ Gray Goose claims__________________________ Lookout no. 3 claim__________________________ Poison Lake...sections of the Trapper no. 1 claim, Beaverhead County, Mont__________________________ In pocket FIQTJEE...Geologic map of the Frying Pan Creek area, Beaverhead County, Mont._______.______._____________ 48. Geologic...sections of the Trapper no. 4 claim, Beaverhead County, Mont________________________________ 49. Geologic |  | | Book (volume) | | 0 n101ercai o of Maine j f·~ ....__ :,,. . - .._"' ..;. .. ~ L-- -~ \. • .J_..::.; I Volume...History, Gems, and Geology edited by Vandall T. King Maine Geological Survey DEPARTMENT OF CONSERVATION Robert...Robert G. Marvinney, State Geologist of Maine Volume 2: Mining History, Gems, and Geology Edited by...Resources Information, Maine Geologi,cal Survey Robert G Marvinney, State Geologist Maine Geological Survey...DEPARTMENT OF CONSERVATION 2000 Copyright ©2000 by the Maine Geological Survey, Department of Conservation. All |  | | Journal (article/letter/editorial) | | Andesine (Ab62) Oligoclase (Ab70-72) Anorthoclase perthite Accessory (magnetite) l-luorite & magnetite Magnetite...Beaver Creek, Teller County. One-half mile southeast of Kineo Mtn., El paso County. Near trail, North Cheyenne...Cheyenne Creek, El paso County. One-fourth mile northwest of pegmatite 61-4, El paso County. the larger rectangular...granite, one-half mile east of jones Park, Teller County. G. Steiger, Analyst. Finlay, 1916. Mineralogy:...Mineralogy: Aegirine, barkevikite, biotite, anorthoclase-perthite; accessory zircon, quartz, allanite, fluorite |  | | Report (issue) | | walking, and will end near West Jefferson, Ashe County, North Carolina. The Mt. Rogers area includes the...States. The other is of Devonian age and is in Maine. The Mount Rogers is of further interest because...phenocrysts are highly perthitic, having the patch perthite texture typical of alkali feldspar phenocrysts...Crossnore, Avery County, North Carolina (Bryant 1962) and the Striped Rock Granite, Grayson County, Virginia...miles) of sodic pyroxene-bearing granite in Watauga County, North Carolina. Although the absolute ages of |  | | Book (edition) | | MARIN COUNTY FREE LIBRARY 3 1111 00289 4184 \ I s Fifth Revised Edition A complete, state-by-state...on the gem resources of our land. "Do you, Mr. Maine," he continued, "know that some of the finest tourmalines...from Alaska to the Mexican border and eastward to Maine and Florida. Still others are found in Canada and...strike gem tourmaline by the bushel basketful in Maine and California; emerald in North Carolina, a big...all challenge to the collector, especially in Maine, New Hampshire, Connecticut, New Jersey, Virginia |  | | Book (volume) | | series of pegmatite dikes ranking with those in Maine and Southern California for their production of...beds, excavations, etc.Selenite roses. BRULE COUNTY AREA: in the Oacoma zone of the Pierre Fm. On Elm...gray Barite rosette up to 5 or 6 inches. CAMPBELL COUNTY MOUND CITY, W to the Missouri R., regional hillsides...gravels, etc.petrified wood, wood opal. CORSON COUNTY LITTLE EAGLE: area ridges, slopes, stream beds...Guide for Rock Hounds in the United States CUSTER COUNTY AREA: The November Mine, 1.2 mi. SE of the Needles |  | | Book (volume) | | 600 to 800 feet thick in the north. ALEXANDER COUNTY FAYVILLE, area stream gravels⎯agate, jasper, rare...⎯agate, jasper; d RR siding of Clay⎯agate. CALHOUN COUNTY AREA, shores of the Mississippi R., in the Warsaw...crystals). CRAWFORD COUNTY PALESTINE, area deposits⎯Siderite. EDWARDS COUNTY AREA, T. 1 S, R. 10 E...E, regional deposits⎯Siderite. FULTON COUNTY FARMINGTON, W 6 mi. on Rte. 116 to the Rapatee No. 5 strip...mine⎯pyritized gastropods (Pennsylvanian age). GRUNDY COUNTY AREA: c Regional rd. and RR cuts and banks of Mason |  | | Book (volume) | | 600 to 800 feet thick in the north. ALEXANDER COUNTY FAYVILLE, area stream gravels⎯agate, jasper, rare...⎯agate, jasper; d RR siding of Clay⎯agate. CALHOUN COUNTY AREA, shores of the Mississippi R., in the Warsaw...crystals). CRAWFORD COUNTY PALESTINE, area deposits⎯Siderite. EDWARDS COUNTY AREA, T. 1 S, R. 10 E...E, regional deposits⎯Siderite. FULTON COUNTY FARMINGTON, W 6 mi. on Rte. 116 to the Rapatee No. 5 strip...mine⎯pyritized gastropods (Pennsylvanian age). GRUNDY COUNTY AREA: c Regional rd. and RR cuts and banks of Mason |  | | Journal (article/letter/editorial) | | the eastern edge of the Parish of Granton in the County of Anglesey, as well as the northernmost part of...of the O'Shannassy Water Reservation in the County of Evelyn. Practically the whole of the Parish of...series. It is well exposed on the track to Keppel's Lookout and on Robley's Spur. 1 For a discussion of the...Orthoclase is pellucid and but rarely exhibits perthite lamellae, which then seem to be restricted to...carries veinlets of acid plagioclase, typical platy perthite is not developed. It may be sericitized along |  | | Field Trip Notes | | Hampshire Field Trip No. 2, Outstanding pegmatites of Maine and New Hampshire 73 Geology of the "Chelmsford...inplace theory for the southern part, as in Dutchess County, New York. Whether such a combination of theories...(1914) Geology of the North Creek quadrangle, Warren County, New York, New York State Mus., Bull. 170. (1919)...Geology of the Schroon Lake quadrangle, Warren County, New York, New York State Mus., Bull. 213-214....(1936) Structural and petrologic studies in Duchess County, N. Y., Part I. Geologic structure of sedimentary |  | | Report (issue) | | Idaho Batholith Near Pierce and Bungalow Clearwater County, Idaho GEOLOGICAL SURVEY PROFESSIONAL PAPER... Idaho Batholith Near Pierce and Bungalow Clearwater County, Idaho By ANNA HIETANEN METAMORPHIC AND IGNEOUS...BATHOLITH NEAR PIERCE AND BUNGALOW, CLEARWATER COUNTY, IDAHO By ANNA HIETANEN ABSTRACT The northwestern...studied lies in the south-central part of Clearwater County in the southern part of the Idaho "panhandle"....various parts D3 PIERCE AND BUNGALOW, CLEARWATER COUNTY, IDAHO ;I'~~t/ < APPROXIMATE MEAN 46°20' DECLINATION |  | | Journal (issue) | | Three mine pegmatites, Ramona district, San Diego County, California ............................101 by...Three property in the Ramona district, San Diego County, California. This mine, strictly speaking, is developed...now obliterated by fill (Sinkankas, 1959). The Lookout mine, further up the hill from the Hercules mine...for the other pegmatite gem mines in San Diego County, the collapse o f the Chinese tourmaline market...Hatfield Creek-Sinkankas-Spaulding dikes, 7 = Lookout prospect, 8 = New A .B .C . pros pect, 9 = Sonny |  | | Report (issue) | | Ouster County, South Dakota. Detailed map, plans, and sections, Ann mica mine, Ouster County, South Dakota...map and sections Beecher Lode pegmatite, Ouster County, South Dakota. Geologic map and sections, Beecher...Ouster County, South Dakota. Geologic map of the Bob Ingersoll mine, Keystone, Pennington County, South...workings, Bob Ingersoll mine, Keystone, Pennington County, South Dakota. Geologic map and sections, Buster...Buster Dike and Roosevelt mica mines, Ouster County, South Dakota. Geologic maps and sections of the underground |  | | Book (volume) | | ...........................................207 Maine .................................................................548 Table of Maps Page Alabama County Map ...................................................................................4 Alaska County and Stream Map ......................................................................22 Arizona County Map ................................................................................49 Arkansas County Map .......................................... |  | | Book | | HfiRIN COUNTY FREE LIBRfiRY 311110G386652Q I V Russell P MacFal A COLOR TREASUF FOR COLLECTORS...are 100 maps geared to leading the "hunter to his quarry" and more than eighty photographs of minerals in...to Hunting Locations ? i 9 GIVEN TO THE MARIN COUNTY LIBRARY BY MARI N L MTNF.RAT. SOCTETY DAVID...knapsack you can use a mountaineering bag or a mili- quarry or mine where a permit tary bag; make it it...may be able to buy specimens. map of Keweenaw County. Mich- Part of the U.S. Geological Survey topographic |  | | Journal (article/letter/editorial) | | ABSTRACTS SEVEN NEW BARIUM MINERALS FROM FRESNO COUNTY, CALIFORNIA EASTERN CaliJornia Dilision Joux...silicate minerals have been found in eastern Fresno County, California. The minerais occur in sanbornite-bearing...distance comparrsons MINERALOGY OI'THE KALKAR QUARRY, SANTA CRUZ, CALIFORNIA Cnanr,Bs W. CnrsrenueN...more than 50 minerals has been found in the Kalkar quarry of the Pacific Limestone Products Company, near...quartz and large masses and crystals of microcline perthite The primary rare-earth minerals have been found |  | | Report (issue) | | by mantling ........................ Exsolution perthite in the alkali granite ............ Evidence for...and croas-aectiorsof the Judith Mountains, Fergus County, Montana. ........................ In pocket 2...Pseudoleucite tinguaite porphyry from sill at east base of Lookout Peak. B. Photomicrograph of green tinguaite dike...Photomicrograph of gray tinguaite porphyry from Lookout Peak. B. Same specimen as A............. 71 23...25 miles northeast of Lewistown, the county seat of Fergus County. They cover approximately 140 square |  | | Report (issue) | | etrography-------------------Granite of Tejon Lookout --------------Setting ---------------------in ...of the Garlock fault Continued Granite of Tejon Lookout Continued Petrography-------------------- 65 Granite...diagrams showing modal plots of the granite of Tejon Lookout -----------------------31. Triangular diagrams...------------------------73. Granites of Tejon Lookout and Brush Mountain ---------------------------------...--------------------------------------------22. Granite of Tejon Lookout --------------------------------------------23 |  | | Book | | many minerals found in this region Eagle's Nest Lookout Get an overview of Bancroft and the scenic York...GOULDING-KEENE QUARRY 2 1 EGAN CHUTE 2 1 YORK RIVER SKARN ZONE2 MORRISON QUARRY 2 2 3 DAVIS QUARRY 2 3...calcite, feldspar, magnetite, sodalite 19 DAVIS QUARRY Dungannon sodalite, hackmanite, zircon, cancrinite...molybdenite, pyrite, 4 3 uraninite GOULDING-KEENE QUARRY Dungannon nepheline, biotite, apatite, calcite...smoky), graphic granite, allanite, zircon MORRISON QUARRY Dungannon sodalite, hackmanite, cancrinite, calcite |  | | Report (issue) | | rocks at the Georgia Nuclear Laboratory, Dawson County, Georgia, by J. W. Stewart..--_____________._....fill in collapse structures, southeastern Eddy County, New Mexico, by J. B. Cooper-___ 226. Relation...fresh water to salt water at Centre Island, Nassau County, New York, by John Isbister____ _______ 227. Highly...a trachytoid texture and is composed mostly of perthite and albite-oligoclase (about 80 percent), and...light-brown grain surfaces between intersecting white perthite crystals. The nepheline syenite contains abundant |  | | Report (issue) | | Creek, and conformably by the Inman Formation in Lookout Valley. 5 INTRODUCTION Regional Geologic Setting...the region-the McLemore Cove, Wills Creek, and Lookout Valley anticlines. The Pigeon Mountain syncline...east, and the Lookout Mountain syncline separates the McLemore, Wills Creek, and Lookout Valley anticlines...Sequatchie in the Chickamauga Limestone in Walker County, Georgia. In northwestern Georgia Butts and Gildersleeve...Formation in the Chickamauga Limestone in Dade County, Georgia. There, Croft (p. 8) divided the Chickamauga | | | Book | | 100 maps geared to leading the " hunter to his quarry" and more than eighty photographs of minerals in...easier for you If you plan to vIsIt an operating quarry or mine where a permll Is required make the necessary...topographic map of the Delaware q uadrangle o f Keweenaw County, Michigan This ,s an example o f the more picturesque...be discovered by locating the porous layers In a quarry or other exposure and following them along the...been washed into the stream ,tselt. Southwestern Maine around the town of Pans. and the rugged area north |  | | Report (issue) | | shore of Lake Huron, Ontario, Canada; and Dickinson County, Michigan........................................Overland and Rock Creeks, T. 19 N., R. 79 W., Carbon County, are designated the type area. Rocks of the Overland...Dolomite or marble Sugarloaf Quartzite 580 m Lookout Schist 0-400 m Quartzite Quartz-granule conglomerate...phyllite lenses g^ku'->;.:v': Micaceous general, perthite and microcline are the most common 183 m varieties...13 19 23 3 8 6 Tr 7 10 3 1 9 8 Microcline Perthite 4.3 9 9 8 12 6 3 11 3 3 Orthoclase 8.3 |
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