 | | Journal (article/letter/editorial) | | Michigan, plus a small portion of northeastern Wisconsin. This includes the famous Marquette and Eastern...range, home of the well-known Montreal mine in Wisconsin. (My collecting experience has not extended to...of the story, as they say, is history. Marquette County alone would eventually have 247 iron mines (Mulligan...two large, open-pit taconite mines (Empire and Tilden) managed by Cleveland Cliffs, Inc. Taconite is...many years. Maquette County Marquette County is the easternmost Iron Country county and also the oldest |  | | Report (issue) | | map of part of the Marquette I°x2° quadrangle E4 Quartz-alkali feldspar-plagioclase diagram for granitoid...rocks of Archean greenstone-granite terrane E7 Quartz-alkali feldspar-plagioclase diagram for granitoid...Michigan (Sims and others, 1984) and northwestern Wisconsin (Sims and others, 1985), east of the Middle Proterozoic... the granitoid rocks are exceptionally rich in quartz (table 1; fig. 2). The granitoid rocks in the Sands...protomylonite is characterized by recrystallization of quartz to fine grain sizes and localized shear-induced |  | | Report (volume) | | Mich., by George C. Simmons ___________________ Tilden Lake sill ______________________________ National...Pony Trail Group in the Cortez Mountains, Eureka County, Nev., by J. Fred Smith, Jr ________________________...(of Iron wood and northern Iron-formation) (of Wisconsin. Menominee Group). Apache Leap Tuff _____ Miocene...CONTRIBUTIONS TO STRATIGRAPHY Name Age Location Attean Quartz Monzonite _ Ordovician(?) _____ West-central Maine...Precambrian Northwestern Michigan and northeastern Wisconsin. Bancroft Limestone ____ Middle Cambrian ___ Southeastern |  | | Journal (article/letter/editorial) | | (Huronian Supergroup) as far west as Minnesota, USA and western Ontario, Canada 15 (Animikie Group)...53 that extends across northern Michigan into Wisconsin and comprises three upward fining 54 successions...Group sits unconformably on the Chocolay Group with quartz 67 arenites and argillite at the base passing...partly concomitant with the 1890-1860 Ma 109 Wisconsin Magmatic Terrane island arc magmatism (Sims et...are broadly coeval with the ca. 1890-1860 Ma Wisconsin 214 Magmatic Terrane island arc magmatism (Schneider |  | | Book | | ....243 APPENDIX II: MINERAL SPECIES LISTED BY COUNTY ...............................248 ABOUT THE AUTHORS...gabbro, syenite (rare), rhyolite, felsite (including quartz porphyry), andesite, basalt (including diabase)...-------------------------Fern Creek Formation Puritan Quartz Monzonite ---------------------------- z<( w...contain as essential minerals various combinations of quartz, potassium and plagioclase feldspars, olivine,...Marquette County include the Presque Isle body, the Yellow Dog body in the northern part of the county, and |  | | Report (issue) | | . . . . . . . 37 Section at Maxwell, Caldwell County.................. . . . . . . . . . . . . . . .... . . . . . . . 41 Section near Elgin, Bastrop County .................... , ................ : . . ...Sections on Leon Creek and Medina River, Bexar County. . . . . . . . . . . . . . . . . . . . . . . .................... 47 Section at Rockdale, Milam County. . . . . . . . . . . . . . . . . . . . . . . ........................... 58 Section in Atascosa County............................................... |  | | Journal (article/letter/editorial) | | Mineral Show and Sale sponsored by the Lin coln County Gem and Mineral Society. Na tional Guard Armory...California. Orange County Fairgrounds, 88 Fair Drive. Informa tion: Jill Lloyd, Orange County Fair, 88 Fair...Annual Ute Moun tain Gem and Mineral Society Show, County Annex Building, 103 North Chestnut. Informa tion:...Fredericks, P.O. Box 196, Cutchogue, Society. Payne County Fairgrounds, 3 mi. East New York 11935. of Stillwater...University. Information: M. July 23, 24—Minocqua, Wisconsin. 20th Annual Harper, P.O. Box 67, Mt. Pleasant |  | | Journal (article/letter/editorial) | | sponsored by the Rock & Mineral Club of Lower Bucks County. Northminster Presbyterian Church, 140 Tren ton...World-Wide I/>calities Including Beautiful Pieces From Wisconsin & Michigan's Iron, Copper & Ixad Mines For our...by the West Texas Gem and Mineral Society. Ector County Coliseum, Exhibit Build ing A, 42d and Andrews...the Calaveras Gem & Mineral Society. Calaveras County Fairgrounds. Show Chairman: Jerry Bradford, 2068...California 94558; 707/226-5481. March 19, 20—Monroe, Wisconsin. r9th Annual Gem, Mineral and Fossil Show sponsored |  | | Book | | ROCKHOUNDING Wisconsin A Guide to the State’s Best Sites ROBERT BEARD To the memory of my grandmother...rockhound that I ever knew, and she loved northern Wisconsin and geology. She would have been thrilled to...Beard, Robert D., author. Title: Rockhounding Wisconsin : a guide to the state’s best sites / Robert Beard...and preservation—Wisconsin—Guidebooks. | Minerals—Collection and preservation—Wisconsin—Guidebooks. Classification:...��������������������������������4 Geology of Wisconsin��������������������������������������������� |  | | Journal (article/letter/editorial) | | July 9-19—Costa Mesa, California. 95th Orange County Fair Exhibition of Gems and Minerals. Fairgrounds...L S on QUARTZ C R Y S T A L S Specimens range in size from 2" by 2" up to 4" by 5", with Quartz crystals...e U>calitics Including Beautiful Pieces From Wisconsin & Michigan's Iron, Copjjcr & Ixxid Mines For our...Cosby Manor Road. Chairman: Dr. F . P . D'Esopo, 7 Tilden Lane, Utica, New York 13501. r 2 CLEVELAND DRIVE...Mineral Spectacular sponsored by the Henderson County Gem and Mineral Society, Inc. Held in conjunction |  | | Journal (article/letter/editorial) | | occurrences. These localities have been listed by county; and, strictly for convenience, the list has been...None theless, with the aid of a good state or county map, plus local inquiries, the list could be helpful...Wayne County International Salt C o . mine—Detroit Alpena County National G y p s u m C o . quarry (formerly...(formerly the Huron-Portland Ce ment Co. quarry)—Alpena barite, calcite, chalcopyrite (r), dolomite,...strontianite (r) Paxton quarry—Paxton calcite, chalcopyrite, dolomite, marcasite, pyrite, quartz, sphalerite Eaton |  | | Journal (article/letter/editorial) | | mostly in small amounts. A bed near Pyriton, Clay County, Ala., was worked for copper. One was mined near...near Stone Hill in the southern part of Cleburne County at what was called Wood's copper mine and also...some nice specimens of mariposite, and a few small quartz xls. A person has to be almost half meuntain goat...stuff and mebbe that's enuff! Broke it out of a quartz vein in mica schist (a few scattered xls of ilmenite...Milford Township. Of dozens of xls gouged out of the quartz vein, I found only three that showed xl terminations |  | | Report (issue) | | QUADRANGLE AND ADJACENT BROWN1 S LAKE AREA, BEAVERHEAD COUNTY, MONTANA A preliminary report by W^ B* Myers .....~ "«"~» . ~ .........«~..~. 30 Tuscarora and Tilden mines .... ... . . ' -. ^Mauldin niine >~'-"~"...the NWi of the ^£S:^^A^^^ quadrangle, Beaverhead County; ^^^^^^f^r^^Maatwaa... ": . .-. . In pocket tc...QUADRANGLE AND ADJACENT BROWN1 S LAKE AREA, BEAVERHEAD COUNTY, -,' *; MONTANA A preliminary report by W, B....smaller masses are dominantly biotite-hornblende quartz monzonite. The rocks of the smaller masses are |  | | Journal (article/letter/editorial) | | the Kalamazoo Geo logical and Mineral Society. County Center Building, Kalamazoo Fairgrounds, Kalama...Mississauga, Ontario. Show Chair the Franklin County Mineral Club, Green man: Joe Pearce, Apt. 5, 305V4...Comts with hindy hex rubbtr drum. Asssmblld rtady to usa. Mod. RBT 3 — 1 Barral. Ship Wt 5 Lbs. — $24.90....Chicagoland Gems and Minerals Association. DuPage County Fair Grounds, Wheaton, Illinois. Publicity Chair...conjunction with the Silver Dollar Fair, Butte County Fair grounds, Chico, California. Show Chair man: |  | | Journal (article/letter/editorial) | | Except in the case of four of the five analyses by Tilden, relative to which sufficient data are not given...DoDoDoDoDoDoDoDoDoDoDoDoDoDoDoDo DODoDo Gautier Chamberlin Tilden Chamberlin .53 .60 .65 -76 2.8o9.27 2.94 I.6o2...Average Granite Gneiss Gray Gray Oglesby Ortonville Quartz Coarse-grained, Granite Shonkinite, Hornblende...DoDoDoDoDoDoDoDo DoDo Do Chamberlin Travers Tilden Gautier Chamberlin Tilden .87 .84 1.1.233.6429-73 2.25 100...Colorado.............03 Minnesota............oi Wisconsin.......... Michigan........... Locality ...... |  | | Journal (article/letter/editorial) | | THE DEEP FREEZE By Paul M. Tilden, Warner, New Hampshire Photos by Paul Tilden Had this article been written...ago, a slowwarming climate forced the last or Wisconsin ice sheet north across the face of the New England...a story to the effect that the retreat of the Wisconsin ice sheet was only temporary—that some day it...particularly on specimens of harder materials such as quartz, compact schists, quartzites and the like. These |  | | Book (volume) | | THENEW YORK PUBLIC LIBRARY ASTOR , LENOX AND TILDEN FOUNDATIONS . 1900 , 1863 LONDON : PRINTED BY...sides of Basaltic dykes intersect ing Chalk in the County of Antrim , and in the Island of Raghlin . (See... THE NEW YORK PUBLIC LIBRARY, ASTOR , LENOX AND TILDEN FOUNDATIONS. Explanation of Plate 3 . PLATE... THE NEW YORK PUBLIC LIBRARY , ASTOR , LENOX AND TILDEN FOUNDATIONS . Explanation of Plate 5 . PLATE... THE NEW YORK PUBLIC LIBRARY, ASTOR, LENOX AND TILDEN FOUNDATIONS . 19 Explanation of Plate 6. PLATE |  | | Journal (article/letter/editorial) | | units indicate that clay minerals in shales and in quartz sandstone matrices represent the only significant...of Cambrian and Ordovician carbonates and mature quartz arenites; Silurian, Devonian, and middle Mississippian...samples collected from a designated test well in Tilden field (Table 2). Water from this well had been...Dol Tilden Tilden Tilden Tilden Tilden Tilden Tilden Tilden Tilden Tilden Tilden N Tilden N Tilden N Baldwin...analytical data, Illinois basin formation waters Field Tilden BoulderE WapellaE Collection date 8-04-64 9-14-84 |  | | Journal (article/letter/editorial) | | km 2. The tonalitic orthogneiss, including the Tilden Tonalite, forms a discontinuous zone of intrusions...Warren Trondhjemite at six locations, and of the Tilden Tonalite at one location, indicates that the former...and Paleo-Mesoproterozoic supracrustal rocks. The Tilden Tonalite, from which sample 91-17 was collected...petrologic study, focused on grey biotite-plagioclase-quartz gneisses common in the Central Gneiss Belt northwest...plutonic rocks; the Neoarchean Warren Trondhjemite and Tilden Tonalite identified in this study were emplaced |  | | Journal (article/letter/editorial) | | sponsored by the Georgia Mineral Soci ety. Cobb County Civic Center, 548 Clay Street (at Fairgrounds Street)...California. Gems and Mineral display at the Orange County F a i r . Exposition Center, 88 Fair Drive. For...Ute Mountain Gem and Mineral Society. Montezuma County A n nex, 103 North Chestnut. Chairman: Alice...Chairman: Ruben L . Radtke, Box 514, Tomahawk, Wisconsin 54487. August 2, 3—South Burlington, Vermont....R o x y A n n Gem and Mineral C l u b . Jackson County Fairgrounds. Chairman: Wes Riley, 2021 L i n n |  | | Book (volume) | | from 18’ to 27’ long. In addition, gem Garnets, Quartz crystals, Topaz and Tourmaline add to the fascination...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 |  | | Journal (article/letter/editorial) | | "Sticks and Stones and Dinosaur Bones." Orange County Fairgrounds, 88 Fair Drive. Information: Dave A...Stone" sponsored by the Eugene Mineral Club. Lane County Fairgrounds, 13th and Monroe. Chairman: Nettie...Mineral Show sponsored by the Kern County Mineral Society. Kern County Fairgrounds, South P Street. Chairman:...Columbus Rock and Mineral Society, the Road. Licking County Rock and Mineral Society, the Rockwell International...I^ocalitics Including Heautifitl Pieces From Wisconsin & Michigan's Iron, Copper & Lead Mines For our |  | | Journal (article/letter/editorial) | | Pennsyl vania 17403 April 3, 4, 1976-Green Bay, Wisconsin. The Neville Public Museum Geology Club will hold...Southern Illinois Earth Science Street, Green Bay, Wisconsin. Show Chair Club. Carterville High School. Show...Renner. Route 1, Carterville, Avenue, Green Bay, Wisconsin 54303 Illinois 62918 April 3,4,1976-CoUege Park...others. Hunt for fluorescents, copper minerals, quartz, agate, turquoise crystals, unaklte, rubles, sapphires...Valley Gem and Mineral Society, Inc. Tippencanoe County Fair grounds, Teal Road, Lafayette, Indiana. Show |  | | Book (volume) | | the western counties, especially the Clay Center Quarry 12 miles southeast of Toledo but in Ottawa Co....ASHTABULA COUNTY CONNEAUT, area pits, quarries, rd. cuts, etc.⎯cone-in-cone Calcite. CLERMONT COUNTY MILFORD...CLINTON COUNTY WILMINGTON, area of Todd’s Ford, a mineral deposit⎯Hematite. COSHOCTON COUNTY AREA, townships...CUYAHOGA COUNTY CHAGRIN FALLS (on Geauga Co. line), area quarries⎯oilstone. DELAWARE COUNTY DELAWARE...nodules⎯Pyrite (crystals sharply cubic). FRANKLIN COUNTY COLUMBUS, area countywide exposures of blue clay |  | | Book (volume) | | the western counties, especially the Clay Center Quarry 12 miles southeast of Toledo but in Ottawa Co....ASHTABULA COUNTY CONNEAUT, area pits, quarries, rd. cuts, etc.⎯cone-in-cone Calcite. CLERMONT COUNTY MILFORD...CLINTON COUNTY WILMINGTON, area of Todd’s Ford, a mineral deposit⎯Hematite. COSHOCTON COUNTY AREA, townships...CUYAHOGA COUNTY CHAGRIN FALLS (on Geauga Co. line), area quarries⎯oilstone. DELAWARE COUNTY DELAWARE...nodules⎯Pyrite (crystals sharply cubic). FRANKLIN COUNTY COLUMBUS, area countywide exposures of blue clay |
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