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| OCCURRENCES IN THE WEST-CENTRAL GEORGIA PIEDMONT The Carroll County gold belt and the southwestern portion... German Georgia Department of Natural Resources Environmental Protection Division Georgia Geologic Survey...workings at the Yorkville Mine, Paulding County (Circa 1930). Photo courtesy of Georgia Department of Archives...OCCURRENCES IN THE WEST-CENTRAL GEORGIA PIEDMONT The Carroll County gold belt and the southwestern portion...portion of the Dahlonega gold belt Jerry M. German Georgia Department of Natural Resources J. Leonard Ledbetter |
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| Deposits in quartzose rocks _________________ Kyanite-quartz deposits . ._._ __ ____ _________________ Petrography...Sillimanite-quartz deposits _________________________________ Andalusite-pyrophyllite-quartz deposits ______...gneiss_________________ ______________ Deposits in quartz veins and pegmatites-_.-_____-_ _____ Residual...group minerals in micaceous schists and gneisses, quartz veins, and pegmatites Kyanite group minerals in...Graphitic schist Biotite-quartz syenite and aplite____ _ Pegmatites and quartz veins _______________ Diabase |
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| Natural Resources Environmental Protection Division Georgia Geologic Survey Cover and title page photo: ...Division Harold F. Reheis, Assistant Director Georgia Geologic Survey William H. McLemore, State Geologist.... . . . . . . . . . . . . . . . . . . . . New Georgia Group . . . . . . . . . . . . . . . . . . . . ... Variation diagrams of mafic rocks of the New Georgia Group ...........................................FeO*, MgO+Mnoplotofmeta-igneousrocksofthe New Georgia Group ........................................ |
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| Quartzite_________________________________________ Quartz-microcline gneiss____________________________ Intrusive...tonalite_ ____ __ ____ ____ ________ ____ ___ __ _ Yorkville Quartz Monzonite________________________ Unnamed...___________ Toluca Quartz Monzonite__________________________ Cherryville Quartz Monzonite_______________________...the Piedmont____________________________ Toluca Quartz Monzonite_ _ _ _ __ ____________ _____ __ __ __..._____ Cherryville Quartz Monzonite_______________________________ Yorkville Quartz Monzonite________ |
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| Igneous rocks. ........................ 15 Toluca quartz monzonite ................. 15 .r *- General...c 15 Lithology. ..................... 16 Yorkville granite .................... 19 General features...Lithology. ..................... 20 Page CherryvlUe quartz monzonite. ............. 20 General features........... 44 Pegmatites related to the Toluca quartz monzonite. ..... 44 Distribution and mode of...... 47 Pegmatites related to the Cherryville quartz monzonite ... kS Distribution. ............. |
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| DIRECTOR RESULTS OF SPIRIT LEVELING IN ALABAMA, GEORGIA, NORTH CAROLINA, SOUTH CAROLINA, AND TENNESSEE................... Stevenson quadrangle (Jackson County)............................. Primary leveling...Chilton, Cullman, Jefferson, and Shejby counties)... Georgia.................................................. Floyd, Fulton, Glynn, Gordon, Henry, Monroe, Paulding, Polk, Pulaski, Telfair, Twiggs, Wayne, and Whitfield...Whitfield counties).... Ringgold quadrangle (Dade County)............................... Macon and Meriwether |
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| Aquifer in the Vicinity of the Nelson Landfill near Yorkville, Illinois By Robert T. Kay In cooperation with...Environmental Protection Agency and the United City of Yorkville, Illinois Open-File Report 2006–1045 U.S. Department...Landfill site and the Newark Bedrock Valley in Kendall County, Illinois.............................................2 Location of the Nelson Landfill site, Yorkville, Illinois.......................................................5 Surficial geology of Kendall County, Illinois..................................... |
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| by intrusive quartz monzonites. The monzonite to the southeast is known as the Yorkville “granite”, and...“granite” (now divided into the Cherryville and Toluca quartz monzonites), but the field-trip stops are in the...injuries. Be careful, and in particular stay away from mine faces containing loose slabs. The lunch stop on...somewhat similar to that at Stop 1 in a deep open-cut mine. The kyanitic quartzite occurs in fine-grained muscovite...have been found invariably to contain fine-grained quartz and plagioclase in addition. Such beds are believed |
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| Esmond Till Members 7 7 Member 7 Member 8 9 Yorkville Till Member Haeger Till Member 1 Wadsworth Till...at the Beverly pit 54 Member 56 Member 57 Yorkville Till Haeger Till Henry Formation Richland Loess...Wedron Formation was named for Wedron, La Salle County, Illinois. The Wedron Section, exposed in the Wedron...Formation were differentiated: the Tiskilwa, Maiden, Yorkville, Haeger, and Wadsworth Till Members (fig. 1)....defined as members (e.g., the Tiskilwa, Maiden, Yorkville, Haeger, and Wadsworth Till Members of the Wedron |
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| Gneiss » » Distribution and iypes » ."letaoorphosed Quartz Gabbro Hornblende Osaiss » Albitization Septa in...Photomicrograph of oligoclase tonallte Crinkled quartz-mica schist ........... Bedding and flow cleavage...the Shelton property, Shall folds shoving flowage Quartz-kyanite vein at Clubb Mountain Photomicrograph.... Porphyritic Yorkville granodlorite.................... Photomicrograph of Yorkville granodlorite ....Mountain-flenry Knob aroa, Gaston County, North Carolina and York County* South Carolina. Geologic Map of |
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| Gold Depositsof the Dahlonegaand Carroll County Gold Belts, Georgia JERRYM. GERMAN GeorgiaGeologicSurvey...UniveterFormation.Mostgolddepositsof the Dahlonega and Carroll County belts can be groupedinto six districts:the Villa...smallerscale(Yeates called the Dahlonegaand the Carroll County gold et al., 1896). belts.Thesebeltscanbe tracedacross...tracedacross Georgiafrom Gold was first discoveredin Georgia in 1829. For Alabamato North Carolina(Fig. 2) andconsistof...political and Countybeltsarelargelyconfinedto the New Georgia economicconditionsand the availability of mining |
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| Geology, Geomorphology, and Climatic History of Kane County, Illinois B. Brandon Curry, David Illinois A...Formation, Batestown Member of the Lemont Formation, Yorkville Member of the Lemont Formation, Henry Formation...Lithostratigraphic Units REFERENCES FIGURES Kane County 1 Simplified bedrock stratigraphy of 2 Paleozoic...Maximum extent of glacial ice in northeastern Kane County during the Woodstock Phase, with terraces formed... Kane County has recently undergone tremendous growth. In 1996, the population in Kane County was 370 |
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| TY, GEORGI A PLATE t GEOLOGICAL SURVEY OF GEORGIA S. W. McCALLIE, State Geologist BULLETIN No.... 19 SECOND REPORT ON THE GOLD DEPOSITS OF GEORGIA BY S. P. JONES Assistant State Geologist ATLANTA...Survey of Georgia in the Year 1909 (Ex-Officio) His ExcELLENCY, HOKE SMITH, Governor of Georgia PRESIDENT...Schools LETTER OF TRANSMITTAL GEoLOGICAL SuRVEY OF GEoRGIA, ATLANTA, June 15, 1909. To His Excellency, HoKE...the Advisory Board of the Geological Survey of Georgia. SIR: I have the honor to transmit herewith for |
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| Low-rank metamorphic rocks 1 Bessemer granite 1 Yorkville granite 1 High- rank metamorphic rocks 1 Carolina...the Carolina gneiss 3 Toluca quartz monzonite 4 Cherryville quartz monzonite 4 Literature cited...nor will the participants see the Bessemer and Yorkville granites. INTRODUCTION The variety of features...fine-grained, bluish-gray to white marble that contains quartz, mica, and tremolite. GEOLOGICAL SUMMARY The summary...rock commonly is metamorphosed to light-colored quartz-sericite schist. Bessemer granite intrudes the |
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| PYRITE DEPOSITS OF GEORGIA FRONTISPIECE-PLATE I .. • ~~~ · ., i;:~~· ~:·. .. .,.. ., ~:,V: ...S'I'ANDARD PYRITES COMPANY, CHEROKEE COUNTY. GEOLOGICAL SURVEY OF GEORGIA S. W. McCALLIE, State Geologist...REPORT ON A PART OF THE PRYITES DEPOSITS OF GEORGIA BY H. K. SHEARER and J. P. D. HULL, • Assistant... THE ADVISORY BOARD OF THE Geological Survey of Georgia IN THE YEAR 1918 (Ex-Officio) His ExcELLENCY, HUGH...HUGH l\1. DORSEY ........ Governor of Georgia PRESIDENT OF 'rim BoARD HoN. HENRY B. S'l'RANGE ... |
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| addition, that geologists in and near Columbia and Georgia will be spurred by the reconnaissance maps to initiate...Counties;W. T. McCutchen, Edgefield County; and B. F. Buie, Union County. Published reports have been fully...utilized as follows (to date): J. R. Butler, York County; D. T. Secor and H. D. Wagener, Fairfield and Richland...Keith and D. B. Sterrett, Cherokee County; J. F. McCauley, Newberry County; H. Y. McSween, parts of Greenwood...coarse porphyries similar to the Yorkville adamellite of York County. A body in group 3, partly mapped |
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| for Geothermometry of Aluminum Substitution in Quartz from Kings Mountain, North Carolina E. C. PE~,...29, 1970 Abstract. The aluminum concentration of quartz from contact-metamorphosed, AlzSiO5 bearing quartzite...temperature-dependent solubility of aluminum in quartz, but critical comparison of these results with...temperature of metamorphism and aluminum concentration in quartz from rocks containing an A12SiO5 polymorph. Initial...rocks and the tedious procedures required to obtain quartz free of aluminous phases in these rocks appeared |
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| surface of the Piedmont. It is located in York County,SouthCarolina,two milessouthof the North Carolina-South...baseof the knob. The.schistmemberis essentiallya quartz-sericitemetamorphic. No chlorite is to be foundin...are simplyvaryingfaciesof an ancientdeposit. Yorkville Granite.--This intrusiveis exposedover a large...mineralcomposition. No mineralsotherthan quartz,kyaniteand pyrlte have been found. Quartz formsa mosaicstructurein ...someexhibittwinning. Singlekyanitecrystals may enclosea swarm of quartz grains. Such inclusionsare particularly abundantnear |
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| SOME CERUSITE DEPOSITS IN OUSTER COUNTY, COLORADO. By J. FEED. HUNTER. INTRODUCTION. The following notes...vicinity of Use, Custer County, Colo. One day was spent in examining the Terrible mine, the most important...by R. B. Brinsmade,2 who described the Terrible mine and offered the curious conjecture that the lead...galena-, even on the 250-foot level of the Terrible mine. GEOGRAPHY. The cerusite deposits here described...of Oak Creek, in the northeastern part of Custer County, Colo., about 12 miles northeast of Silver Cliff |
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| hornblende appears as the most abundant constituent. Quartz is in small grains. The feldspar is deeply kaolinized...locality in question. Microcline, acid plagioclase, quartz, and biotite, with zircon, apatite, magnetite,...Mountain Boy bears NI4E from it. The distance from the mine tunnel is about 100oyards. The United States landmark...Macroscopic description.-In hand specimens glassy quartz, in grains an eighth of an inch across, is the...corundum appears to favor association with the quartz. White sugary plagioclase is present, with rarer |
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| tinge, and some pinkish bands. Colorless drusy quartz encrusts some of the chert. The find was made on...Collected on the beach. Quartz (Agate). Gray pebble that vas found on the beach. Quartz (Chalcedony). Grayish...Grayish pebbles from east end of island. Quartz (Milky). Nice pebble found on beach. Limestone. Grayish pebble...microcline, lustrous silvery muscovite, and smoky quartz. It comes from beautiful Glenwood Canyon, near...ferruginous quartz, occur at shipping many tons and the mine shows the old Lane bismuth mine, at Monroe |
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| northern hemisphere (37° 35' N. latitude, in Johnson County); it is where the outwash drainageways from the...SUBSTAGE c o 5S TWOCREEKAN UJ a> .O Till rCO Yorkville WOODFORDIAN SUBSTAGE H CO >CO or CO T.M....'.*:;>. MISSISSIPPIAN Includes Devonian Hardin County in DEVONIAN Includes Silurian in Douglas Champaign...brown chert faces, generally with quartz pebbles in a matrix of quartz sand, but it contains pebbles of...Missouri and in Illinois, the gravel con- Calhoun County, tains boulders of quartzite as much as 2 and |
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| NORTHERN = ~ 54 es 719 DESERT, DEATH a cs 4103 MINE THE SOUTHERN MINES, THE MOJAVE VALLEY AND YOSEMITE...208 233 aes ILLUSTRATIONS Section of a lead mine in Wisconsin in the 1840's a - 65 Emigration...The remains of a Cornish rege in the Cora Blanca Mine, New Almaden ea ie ‘ie Wee “‘Crowst-time” for...the Cliff Mine, Lake Superior, about 1850 ‘a oa. 395 Surface workings of the Cliff Mine, about 1850...ballad commemorating the Central Mine disaster os 196 The famous Chapin Mine at Iron Mountain, Michigan |
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| the New Georgia Group and immediately overlie units of the Sandy Springs Group. New Georgia Group rocks...and Crawford, 1970; Cook, 1970). It is a major Georgia (Fig. 1) has resulted in a reevaluationof thesisof...depositsof the precious metal depositsof western Georgia are andformedwithina bimodalvolcanogenic area....metaGeorgia. The northern Piedmont in western Georgia morphosedto kyanite grade to form amphibolite,...mostareas. or systematicexplorationeffortsin the west Georgia Metamorphism and deformationalsoinfluencedthe Piedmontin |
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| COVER PHOTO : Gold nugget from Dukes Creek, White County, weight 5 oz., 12 dwt., approx. 2x. BACK COVER...approx. 1.5x. Lower left - Goethite from Pulaski County, approx. lx. Right - Magnetite crystal face showing... MINERALS OF GEORGIA: THEIR PROPERTIES AND OCCURRENCES by Robert B. Cook STATE OF GEORGIA DEPARTMENT OF............................................. 153 Quartz ........................................................................................... 170 County Index ........................................ |
