 | | Report (issue) | | survey, on the scale of one inch to a mile, of the district described in this Memoir was made by F. J. Bennett...Formations, § ae e 6 Eo aT se 40 Oxford Clay: General Account, ; Details, tet Corallian Beds:...Elsworth Rock Group, 20; Details, Ampthill Clay, 29. Kimmeridge Clay: General Account, 36; Details, 37; References...AND RECENT General Account, 65; Details, Boulder Clay, 66; Glacial Gravel, 69; Third River Terrace, 69;...Cuapter VI. ECONOMIC GEOLOGY AND WATER SUPPLY... Clay, 76; Sand and Gravel, 76; Building Stone, 76; Phosphate |  | | Journal (article/letter/editorial) | | Brickfield, where Boulder Clay was seen lying as a valley deposit on London Clay. The Oldhaven Pebble Bed...Messrs. Sims and Son's clay-pit at Oaken Lane. A view of the eastern face of the pit is given (Plate 35.A)...Claygate Beds or the passage-beds between the London Clay and Bagshot Sands. HENRY DEWEY, . . "q , . ...remarked by observers that the top part of the London Clay contains seams of sand and loam, and in this respect...main mass, which is, in the London District, a heavy homogeneous clay. The first observer to record the |  | | Journal (issue) | | frondl:lite anJ other phosphates from Gunheath china clay pit, St Austell, Cornwall, England 3 15 N.l. Elton...Elton Sector phosphorescent gypsum (selenite) crystals from Mepal Bridge, Cambridgeshire, England B.A...encompass occurrences of all minerals found within the district which are of obviously secondary or supergene...species known or reported to occur within the district at the time of writing are included. However,...orefield. The most completely oxidised ores of the district typically comprise massive, rather earth), dark | | | Report (issue) | | survey, on the scale of one inch to a mile> of the district described in this Memoir was made by F. J. Bennett...• • •• • • • • .. . . • • • • • Oxford Clay: General Account,. 11; Details, 11. . Corallian...Elsworth Rock Group, 20; Details, Ampthill Clay, 29. Kimmeridge Clay: General Account, 36; Details, 37; References.... . . . . General Account, 65; Details, Boulder Clay, 66; Glacial Gravel, 69; Third River Terrace, 69;... • • •• • • 82 • • • • • • 83 CHAPTER Clay, 76; Sand and Gravel, 76; Building Stone, 76; Phosphate |  | | Journal (article/letter/editorial) | | A.-BLACKHEATH OR OLDHAVEN BEDS 19 2 B.-LoNDON CLAY 194 III. STRUCTURAL 197 IV. V. REpORT OF EXCURSION...and consequently the literature relating to the district is scanty. Prestwich, in his well-known papers...the higher part of the hill to consist of London Clay, though, after a careful search, he could find no...Memoir on the Geology of London,§ although the district falls partly outside the area dealt with in the...advantage of t he sections afforded by the large clay -pit in Swanscombe Woods (the highest part of t he |  | | Catalog/List | | ecimens as half phosphatic geodes from the Hiocene clay vith lmm,yellow-green,tabular xtls in aggregates...xtls. LC,t.20. 15. APATITE. Goonbarrow China Clay Pit,St Austell,Cornwa11. Granite fragment with upper... 3~. RARITE/CHALCOPYRITE.Dreislar,Sauerland,Germany. Large,platy interlocking,opaque,white xtls of...xtls to 12mm, Nice 68. CELESTITE/BLENDE/CALCITE. Clay City,0hio,USA. Ruby red Sphalerite xtls to 10mm...85. CHALCOSIDERITB/WAVELLITE. Gunheath China Clay Pit,St Austell,Cornwall. Quartz/Mica fragment vith |  | | Journal (article/letter/editorial) | | SELENITE CRYSTALS FROM PRINCETOKBiRITISH COLUMBIA by RAYMOND LASMANIS 3129 Mariner Way Port Coquitlam...are not that common. This prompts me to bring a selenite crystal locality to the attention of Rocks and...crystals of cial Park, and past the new copper mining selenite on a matrix of gypsum. operations of Similkameen...bear right at this point and cross bridge fect selenite crystals he has collected shortly after; at a...Lasmanis is a mineral right into what appears to be a clay pit. exploration geologist in Vancouver, This is the |  | | Book | | • HANDBOOK TO THE COLLECTION OF KAOLIN, CHINA-CLAY • AND • • CHINA-STONE, - • I • IN THE MUSEUM...Te:x:t illustra.tions. Wrapper. (1908) LoNDON DISTRICT. 1 0 . Sus-So1Ls from a Sanitary point of view...HANDBOOIC TO THE COI,LECTION · OF ... KAOLIN, CHINA-CLAY AND ' CHINA-STONE, IN THE })IUSEUM OF PRACTICAL...of Cornish · or china-stone and Cornisl1 or china-clay collected -by Sir Henry de la . Beche unde1 this...commenced "~ith special 1"eference to the kaolin, china-clay and china-stone deposits of the British Isles, but |  | | Journal (article/letter/editorial) | | Field Meeting in the Cambridge District 19-21 September 1958 Report by the Director: C. L. FORBES Received...the Great Ouse River Board Pit, Fordham Road, Stretham (516743).1This pit was opened in 1952 and was...sporadically. The brecciated top of the Kimeridge Clay is most likely due to periglacial freeze and thaw...brecciation is similar to that seen in Gault or Kimeridge Clay below contorted Quaternary gravels elsewhere round...village. The zonal subdivision of the Kimeridge Clay depends on the Director's interpretation of M. R |  | | Book | | SUCCESSION IN THE WARWICK DISTRICT QUATERNARY Dunsmore Gravel Boulder clay including Thrussington and...and Oadby tills Stoneless clay including Walston Clay Sand and gravel including Bagington and Wolston...Shales Geology of the country around Warwick The district described in this memoir incorporates parts of...Formation the beds are known in more detail. The district includes the northern part of the South Warwickshire...history, mineral products and hydrogeology of the district. Plate 1 (Frontispiece). Warwick Castle from |  | | Journal (article/letter/editorial) | | often overlie it, and three or four feet of fine clay which commonly occur at its base. Two sections may...exposed ---- 7 - 11 SECTION IN THE PIT OF THE FORT DODGE CLAY WORKS. 3. Drift, yellow, unleached,...lepidodendrons. A few iron nodules present and crystals of selenite. Separated from red shales above by sharp line...Webster county, except the scattered crystals of selenite in the Coal-Measure shales, is stratified in heavy...two feet. The layers are separated by traces of clay. In thick- 726 FRANK A. WILDER ness the deposit |  | | Book (volume) | | petrified wood, Pyrite; rd. cuts, banks, cliffsSelenite crystals. COLUMBUS, SE section along Rte. 103...areasilicified wood. CUSSETA, NW 2 mi. on US 27, a rd. cutSelenite crystals, decorative fossil shark teeth. CHATTOOGA...left side of US 27N, on the Roland Hancock farm, a pitgemmy chert. CHEROKEE COUNTY BALL GROUND: area:...Elberton and Hartwell in Hart Co. The known mica district includes some 250 sq. mi., with most mining revolving...minesMica, Beryl, Quartz; SE 4 mi.: (a) area of the Germany Mt.; (b) at Wilson farmAmethyst (gem quality); |  | | Catalog/List | | specimen; collected 1982. Fluorite, chalcopyrite, selenite, baryte and calcite. Clayton Adit, Ecton, Staffordshire...a calcitic matrix. 88/103 Calcite and quartz. Selenite Chamber, Wapping M ine, Matlock Bath, Derbyshire...crystalline matrix. 94/ 1 06 Calcite and quartz. Selenite Chamber, Wapping Mine, Matlock Bath, Derbyshire...ine matrix. Selenite. Wapping M ine, Matlock Bath, Derbyshire. Greyish botryoidal selenite covering surface...surface, a nice specimen for this locality. Selenite. Selenite Chamber, Wapping Mine, Matlock Bath, Derbyshire |  | | Report (issue) | | .................................. Vallecitos District..................................................................... Armargosa (River Valley) District............................. Other Deposits..... Meigs-Attapulgus-Quincy District.............................. Twiggs Clay Belt.......................Hardin District....................................................... Malta-Glasgow District............................................... Vananda District.............................................. |  | | Book (edition) | | Blue Chalcedony .... Tourmaline ............... Selenite.......................... New Discoveries ......Fossils 58 WISCONSIN 59 LAKE SUPERIOR-GOGEBIC DISTRICT 59 Gems and Specimens . 59 Gems .69 69 69 69...had no reason to doubt this nomenclature. Then one clay I saw a box of maybe a hundred pounds of bright...Photo — South Dakota School of Mines. i N 8 clay. Also, the chalcedony you dig for. while fracture...tourmaline awaits determined collectors. Selenite Winged selenite roses arc a new dis covery from eastern |  | | Journal (article/letter/editorial) | | other recognized psilomelane in the Batesville district, In- species as laumontite, thomsonite, datolite...California from what they call the Fort Bidwell district ( N / E Modoc Co.). The territory is covered with...then a member of the Mineralogical Society of the District of Columbia. At that time the material was thought...thin slabs of reddish selenite, sometimes encrusted with tiny colorless selenite xls, occur in the gypsum...mass above the plain is of a substance between hard clay and stone, mixed with gravel and strongly impregnated |  | | Journal (article/letter/editorial) | | will like them. They come from the great open borax pit of the Pacific Coast Borax Co., in Boron, Kern Co...things, other than mud over our boot tops. "The selenite specimen enclosed was collected from a small area...Sylvan Dr., Clearwater, Fla. A 4", flat, platy selenite xl, whitish but with a brownish tinge was received...a place called Chimney Rock (Sandpoint Ranger District, Bonner Co.), quarter-inch black octahedron crystals...inch grayish white cycad (tree) was dug out of a clay bank at road level by Ken Kyte, Box 161, Co567 |  | | Report (issue) | | geochemistry and surface area of mudrocks from the London Clay Formation of southern England Physical Hazards Programme...the London Clay Formation of southern England S J Kemp and D Wagner mineralogy, London Clay Formation...Formation, clay minerals, pyrite, smectite, engineering properties. Front cover <2 µm X-ray diffraction traces...geochemistry and surface area of mudrocks from the London Clay Formation of southern England. British Geological...explain the geotechnical behaviour of the UK London Clay Formation. This project follows similar projects |  | | Journal (issue) | | a charming 15mm high calcite from Ramsbeck in Germany which cost no more than £1 a couple of years ago...(13mm FOV) Goanikonties Claim, Arandis, Swakopmund District, Erongo, Namibia Fig. 3 Cuprite var chalcotrichite...Scotland Fig.6 Torbernite (5mm FOV) Blackpool China Clay Pit, Trewoon, St. Austell, Cornwall -5- SMLS Journal...and torbemite (see fig.6) from Blackpool China Clay Pit, St. Austell. John answered an array of questions...decomposition, potassium-alum, possible sulphur, gypsum (selenite), green melanterite and possible members of the |  | | Report (issue) | | test core drilled, a mine shaft sunk or a gravel pit dug—additional mineral discoveries may be made. There...gratitude. I also wish to thank the many quarry, gravel pit and mine operators in Iowa, and many private landowners.................................................. Clay minerals..........................................3) 4) 5) 6) Upper Mississippi Valley zinc—lead district Mineral crystals, isometric .................... wooly-like halotrichite crystals. 31 8) A. Selenite crystals showing penetration and contact (fishtail) |  | | Book (edition) | | \TURRITELLA Limestone \ \ INDIAN ARTIFACTS \ SELENITE TEKTITES \ \ \ l AGATE 5 JASPER WOOD(Polm)...Tektites... Palm—Wood .......................... Selenite Crystals .................... Tektites—Grimes......... . Agate—Sullivan City ................ Selenite Crystals—Shells ........... Pictures _____________________...tons of gravel and sand until you reach the blue clay which often yields large water worn crystals. Another...way up the bank we found small clusters of shiny Selenite crystals in the crevices made by recent rains |  | | Journal (article/letter/editorial) | | afforded continuous sections rom Thanet Sands to London Clay and, on the approaches to the hill, Pleistocene...YPRESIAN. Feet. (Top.) London Clay, typical slaty-blue clay,with selenite and occasional septaria, weathering...the base, through sandy loams to the true London Clay, is very even. A few pebbles scattered in the lower...determine the exact division (if any) between the London Clay and the Blackheath and Oldhaven Beds. Bed z has...the lower sand and pebble series to the stiff blue clay above. The scattered pebbles at the base of Bed |  | | Journal (article/letter/editorial) | | CHAPTER VII. THE OXFORD AND BANBURY DISTRICT. By J. A. DO UG L AS, M.A., B.Sc. , F.G.S . I NTRODUC...ion with its main topographical feat ures. The district comprises be ds representative of th e whole Jurassic...th e Shipston and Moreton district, composed THE OXFORD AND BANBURY DISTRICT. 193 of Lower Lias clays...the Marlstone plateau. The Upper Lias in this district is very thin, and has only a minor effect on the...of Forest Marble, capped by Cornbrash and Oxford Clay, are met with in the neighbourhood of Wychwood Forest |  | | Journal (issue) | | rocks. Many pegmatites are worked onlr for this clay mineral which forms dull. earthy masses or pseudomorphs...silicate occurs as sedimentary beds of almost white clay, d.crived from the alteration of feldspar Resembling...Wondentone Vonodlnile Howllte Hyd romog neslte Selenite Kurnokovi t e Turquol1• Perldor - '!. · · • Aventurlne...of spec i men minera ls have come from The China Clay Pits of Cornwall By John F . M i h e l c i c Oregon...than bt>ing a geographic term. The story of the clay pits came fir�t hand from Claude Bullen, a Cornishman |  | | Journal (article/letter/editorial) | | Gem Claim and is located in the Eureka Mining District in Yavapai County, Arizona. From this old mine...beautiful specimen and was found in Vernon Parish in a clay pit west of Anacoco, La. MAINE — "I am sending you...(most of the surface however is stained by brown clay) ; the other is a slender, 1 inch xl in gray basalt...black stuff is under the Kosciusko sand member, red clay on top of the sand members. This sand contains radioactive...sledges the sludge fell out. In it were groups of selenite xls up to 4 inches long. At least 90% were ruined |
|
