 | | Journal (article/letter/editorial) | | microscopical study of the interstitial chlorite in the diabase-minverite series of south-west England. These disprove...the comparatively low degree of alteration, the diabase-minverite series of North Cornwall and South Devonshire...comparatively high temperature, minerals such as zeolites, calcite, analcite, and albite associated with it cannot...of chlorite from the chemical analyses of the diabase and minverite respectively. The results quoted...for chlorite, and on the averaged analyses of diabase and minverite from south-west England (Lehmann |  | | 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 |  | | Journal (article/letter/editorial) | | Triassic Diabase, Coopersburg, Pennsylvania Abstract: Veins, principally of prehnite, occur in diabase near...and prehnite. Minor quartz and calcite occur with the prehnite. Diabase near the veins shows three zones...chlorite. In the third zone the texture of the diabase is preserved, but hypersthene is altered to chlorite...Geological setting Diabase Altered diabase General statement Incipient alteration of diabase Chlorite-prehnite-quartz...cited 1361 Figure 1. Spatial relations of altered diabase and paragenetic relations of vein minerals . . |  | | 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...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...yards long and about 25 feet high. Newly exposed diabase formed a high wall extending another 15–20 feet |  | | Journal (article/letter/editorial) | | chalcocite, bornite, pyrite, tetrahedrite, and even calcite pseudomorphs after chalcopyrite. Chalcopyrite is...from the Old Lurzenbach mine, Gosenbach, Siegen, Germany. Jack Halpern specimen, Jeff Scovil photo. distribution...across are occasionally encountered in the diabase quarries of Fairfax County and the Goose Creek quarry...reaching 4 cm across were often associated with calcite, magnetite, and actinolite. Disphenoids modified...“oxides.” Many fine specimens were encased in calcite and were exposed by etching with hydrochloric acid |  | | Journal (issue) | | Behnke Northbrook, IL Werner Lieber Heidelberg, W. Germany Eric Offermann Arlesheim, Switzerland Jeffrey A...slavia), C aldbeck Fells (England), SEM , Eugui quarries (Spain) $10 v .2 2 /# 3 M essina m ines (So....our best! $15 v .2 3 /# 3 A frican gold, Iowa calcite, Hiendelaencina (Spain), Freiberg A cad.; Tucson...Bisbee Update (A Z), A ll char (M acedonia), Calcite xls, Seelite & Edoylerite $10 v .2 5 /# l Gold...portion of franklinite, willemite and zincite in calcite which have constituted the economic minerals of |  | | Book | | localities for good ilmenite crystals exist in the region (Brunet, I 977b ). NEW YORK Amity, Orange County...excellent loose ilmenite crystal clusters from a calcite vein-dike digging site which they called the Bentley...finest ilmenite specimens have come from an unusual calcite vein-dike occurrence with an exposure very near...ilmenite crystals are found embedded in massive calcite. or, rarely, still attached to the feldspar/mica...showing sharp black crystals to 4 cm in pinkish calcite were collected in 2005 and marketed at the Tucson |  | | Journal (article/letter/editorial) | | farming, is that connecbd with the diabase- or ' granib '-quarries at Porth Downloaded from http://jgslegacy...slates. on Trwyn Ellen and Trwyn Llwyd, but these quarries are now abandoned. The group consists of alternations...tramway-cutting which affords access to the diabase-quarries on Pen Clegyr. In this cutting the mudstones...the shore, though they may be seen in s m a l l quarries on the cliff above t~wll Llong. The dip of the...strike: there is one such deviation near the large diabase-mass of Pen Clegyr. Again, in its course of a few |  | | Book | | 02'28tf)318,65}--Prospect pit--Medium- to coarsedgrained calcite marble (Coles Brook limestone) with acoessory plagioclase...bands are formed trom the weathering of aukeritic calcite and pyrrhotite. Altered Limestone Marble (76(10calities...worked. Assoc1.ted with pyrite, Plrrhotite, ahd calcite in hornDlendle gneiss. Eaat of Center Pend, oa...erals reported (macroscop1c?): a11Anit., apatlt., calCite, epidote, fl rite, ilmenite, muscovite, pyrite...titan te i8 r.lative~1 large SJl.sunts. Grgit. Quarries (76(42 15'58",73000'43tt)~ 2 16'11",73 01'U tt |  | | Report (issue) | | 1910, 540. silky mass of radiating needles, with calcite. Colorless, white. . ; SiO2 A12 3 CaO Na 2...limestones the shales, etc., most. effect of a diabase dike may be practically nil, where under other...gmelinite, natrolite, mesolite, scolecite; Carbonates: calcite; Silica: quartz, chalcedony; Elements: copper,...Zeolites are of common occurrence in the Triassic diabase quarries of Adams, Lancaster, Berks, and ; Hydrous...hydroxide: brucite. WEATHERING PRODUCTS: (in calcite, part Hydrometamorphs) Silica: quartz, chalcedony |  | | Report (issue) | | aragonite, asbestos, azurite, barite, bornitc, calcite, ccrussite, chalcocite, chalcopyritc, chlorite...bertrandite, beryl, biotite, blythite, cairngorm, calcite, cassiterite, cerussitc, chabazite, chalcedony...hornblende, bastnaesite, bochmite, bytownite, calcite, crytomelane, diaspore, fluorite, galena, gibbsite...troilite, wad, wollastonite. BATH COUNTY: aragonite, calcite, gearksutitc, limonite, niter, pyrite, quartz,...agate, aragonite, arsenopyrite, asbestos, barite, calcite, cryptomclanc, dolomite, fluorite, galena, manganite |  | | Report (issue) | | III. Frontispiece Granite, gneiss, schist, and diabase in natural colors Sandstones in •". natural color:... State map showing location of building stone quarries 1. Galeb Pusev house. Upland. Delaware County...Seisholtzville, Berks County oS •>:,. Limestone quarries near Tyrone. Blair County 20. Medina sandstone...House. Towanda. P.radford County 00 01 04 30 Diabase (piarry. Quakertown. Bucks County J/> 33 Butler...Dialtase nionunient, Kichlandtown. Bucks County 32. Diabase monument, Logan Circle. Philadelphia _«4 <_•» |  | | Book (edition) | | opened or systematically worked, as in mines and quarries, the amateur is far better able to keep track...purposes, each behaves like a single-atom ion. Calcite furnishes the prime example of a mineral containing...schematically at the bottom of Figure 8. Although calcite is composed of three elements, namely calcium,...bonding is shown by what happens to the radical when calcite dissolves in water to later form stalactites and...and stalagmites as in caverns. When the calcite dissolves, ionic bonds between calcium and carbonate | | | Book (edition) | | opened or systematically vvorked, as in mines and quarries, the amateur is far better able to keep track...purposes, each behaves like a single-atom ion. Calcite furnishes the prime example of a mineral containing...schematically at the bottom of Figure 8. Although calcite is composed of three elements, namely calcium,...is sho,,vn by what happens to the radical when calcite dissolves in water to later form stalactites and...and stalagmites as in caverns. When the calcite dissolves, ionic bonds between calcium and carbonate are |  | | Report (issue) | | Gregory Herman6 and John Curran6 1A1-4G3 1. Diabase and Brunswick basalt in the Watchung zone 1A1-1F4...Apx-Apxiv Appendix 1. Diabase and Brunswick basalt in the Watchung zone 1A. Well 1 –- Diabase, Lambertville City....................... 1B. Wells 2 through 5 –- Diabase framework, East Amwell Township.................................................. 1C. Well 6 – Diabase, Hopewell Township............................................................... 1D. Well 7 – Diabase, East Amwell Township......................... |  | | Report (issue) | | and sheared lavas near Mothecombe. { Diabase and INTRUSIVE. diabase-hornfels. .!ltered rock ? proterobase...LITERATURE. In Lysons' ' Magna Britannia ' the slate quarries near Ivybridge and Cann quarry are referred to...schiefer, Andalusithornfels ; also the altered diabase and schal stein, and the presence of typical adinole...for instance : in the vicinity of the masses of diabase south of · Whympston House, bet�reen Modbury and...the Lower Devonian is incomplete, as many of the diabase patches shown on the ·map have not been examined |
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Diabase quarries, Herborn, Lahn-Dill-Kreis, Giessen Region, Hesse, Germany