 | | Journal (article/letter/editorial) | | squeezed between layers of rock, it formed sills of diabase, Dr. Peter B. Leavens is emeritus professor of...quarry. Sedimentary red beds are shown in green, diabase sills in red. The basins lie roughly on the boundary...zeolites and other minerals, from stilbite and chabazite in the flows around the Bay of Fundy in Nova Scotia...Culpepper basin in northern Virginia. In Pennsylvania diabase, sills occur in a band across the southeastern...to come up the hills to attack them.) Several quarries (table 1) recover crushed stone from these sills |  | | Report (issue) | | Loudoun County 143 Prince William County 149 Diabase quarries of northern Virginia 155 CAPTIONS Illustrations... List of Figures Figure 1. Index map showing region covered in this report. Stfaded area is covered...Figure 2. Block diagram of the Washington, D.C. region showing physiographic provinces and major geographic...Complex at Ilchester, Maryland. Figure 6. Triassic diabase dike forming a ridge north of Route 7 near Dranesville...and locations of mines in the Soldiers Delight region, Baltimore County, Maryland. Adapted from Pearre |  | | Report (issue) | | limestones the shales, etc., most. effect of a diabase dike may be practically nil, where under other...apophyllite, heulandite, stilbite, laumontite, chabazite, gmelinite, natrolite, mesolite, scolecite; Carbonates:...Zeolites are of common occurrence in the Triassic diabase quarries of Adams, Lancaster, Berks, and ; Hydrous...Pennsylvania are associated with intrusive Triassic diabase: the lead and zinc veins of Perkiomen and Phoenixville...sandstone, shale, conglomerate, and intrusive diabase in the northern part. Low hills; a southern extension |  | | Book | | localities for good ilmenite crystals exist in the region (Brunet, I 977b ). NEW YORK Amity, Orange County...Alberene and Old Dominion quarries, Albemarle County. In these two soapstone quarries, tabular ilmenite crystals...in Switzerland, it is only in the Maderanertal region of east-central Canton Uri that clefts bearing...clefts are found fairly commonly throughout this region, such that only a handful of notable finds during...about 20 other quartz mines are operated in the region of the Subpolar Urals, northwest of Saranpaul, |  | | Book | | titan te i8 r.lative~1 large SJl.sunts. Grgit. Quarries (76(42 15'58",73000'43tt)~ 2 16'11",73 01'U tt...uaknown)16l,p.84)--Old Gross Quarry. Dolomite Harb e quarries (with variable amounts of calCite, phlogopite...limestone quarries 74(42 21' 34·',73 22'12"--Cone Hill )--One quarry at this location. Two quarries 260 feet...Limo ite) Pit t,8(42 40'47",73 11'38")121) Marble Quarries area of 42 40'37 n ,73 11'02")114)--Twoquarries0...unknown)420,229,p.205,229) DARTMOUTH: Granite Quarries (163(area of 41°38'17",71°01'57")116,65)-Alfred |  | | Report (issue) | | cairngorm, calcite, cassiterite, cerussitc, chabazite, chalcedony, chalcocite, chlorite, chlorophane...their bearing on the geomorphic history of the region, their included relatively rare minerals (see,...30Sp. Noteworthy Deposits 34 VI. Triassic Diabase Quarries Some of the basaltic lava flows and the near-surface...speci mens have occurred as fracture fillings. The quarries in Triassic dolcrite, “trap-rock,” in northern...from cavities in the trap-rock of these seven quarries and the “check list” is increased to about 50 |  | | Book (edition) | | opened or systematically worked, as in mines and quarries, the amateur is far better able to keep track...system in 1735, followed by Friedrich Mohs of Germany, who published his in 1820. In 1758, Axel Frederic...Wilhelm Scheele (1742-1786) in Sweden, and in Germany by Martin Heinrich Klaproth (1743-1817), the merits...carried out by Eilhard Mitscherlich (1794-1863) in Germany; these did much to explain hitherto puzzling variations...another, is commonly seen in crystals of siderite, chabazite, apophyllite, heulandite, pyrite and arsenopyrite | | | Book (edition) | | opened or systematically vvorked, as in mines and quarries, the amateur is far better able to keep track...system in 1735, followed by Friedrich Mohs of Germany, who published his in 1820. In 1758, Axel Frederic...Wilhelm Scheele (1742-1786) in Sweden, and in Germany by Martin Heinrich Klaproth (1743-1817), the merits...carried out by Eilhard Mitscherlich (1794-1863) in Germany; these did much to explain hitherto puzzling variations...another, is commonly seen in crystals of siderite, chabazite, apophyllite, heulandite, pyrite and arsenopyrite |
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Diabase quarries, Herborn, Lahn-Dill-Kreis, Giessen Region, Hesse, Germany