 | | Journal (article/letter/editorial) | | was formed by lightning striking a small electricity pylon; it consists morphologically of a central...largely composed of glass, with the remains of quartz crystals and neoformed cristobalite. This paper...partially melted quartz remains, along with fractured crystals of cristobalite and quartz. Analysis of this...(northeastern Portugal, near the frontier with the Spanish province of Salamanca). 1.1. Formation characteristics...González Laguna 2000 K is reached based on melting of quartz (Essene & Fisher, 1986), a silica-rich fulgurite |  | | Journal (article/letter/editorial) | | " are frequently isolated one from the other by quartz veins, which do not continue into the adjacent...; schists in dashes ; amphibolites in crosses ; quartz veins in solid black. The dash ornament represents...North of Meall Dubh house and near to an electricity pylon (656591) the typical boudins have "elongated...in. Any two boudins are normally separated by a quartz vein, which occasionally sends offshoots into the...layer, a crack filled normally by quartz occurs within the layer. The quartz vein must have been produced |  | | Report (issue) | | be very intense with the development of a handed quartz-schorl rock. Only occasional spotting is seen north...amphibole, diopsidc, actinolite, chlo r ite, a little quartz or feldspar and occasional cal cite. Their variation...the ore. Typically the veinlets are composed of quartz with selvages of mica and tourmaline - the greisen-bordered...Carrigan Consols, worked a zone of sheeted tin-bearing quartz veins in greisen to a depth of about 18 m by opencast...except the southernmost anomaly also lie near the electricity power line. It is probable, therefore, that five |  | De Ronde, Cornel E.J., Channer, Dominic M.deR., Faure, Kevin, Bray, Colin J., Spooner, Edward T.C. (1997) Fluid chemistry of Archean seafloor hydrothermal vents: Implications for the composition of circa 3.2 Ga seawater. Geochimica et Cosmochimica Acta, 61 (19) 4025-4042 doi:10.1016/s0016-7037(97)00205-6 | Journal (article/letter/editorial) | | lesser quartz, an amorphous A1-Fe silicate, and clays dominate the mineralogy of the pods. The quartz occurs...IRONSTONE POD FLUID INCLUSIONS In this study seven quartz-bearing samples were collected from the pods for...These samples are considered representative of the quartz microveinlets and vugs seen throughout the pods...intergrown with the quartz crystals. In the case of the rugs, alternating zones of quartz and hematite are...Samples analysed for their gas compositions include quartz from the Ironstone Pods and, for comparison, two |  | | Report (edition) | | Gault is usually concealed ; but the basal bed of quartz pebbles may sometimes be traced. Owing to landslips...Oxford Clay. When the foundations of the electricity pylon were dug (where the track crosses the col) |  | | Journal (article/letter/editorial) | | metres of infill had to be removed when a new electricity pylon was erected. A t Ludworth Intakes, an adit...Coals xii Red sandstones xiii Quartzites xiv Vein-quartz xv Flints Number of collected erratics Middle |  | | Journal (issue) | | is approximately 95 miles northeast of Reno. Electricity is available on the property, and water is available...deposit at the Gramalote gold project in Antioquia province, Colombia. The project is a joint venture between...“Fortescue’s commitment of US$700 million in electricity generation and transmission infrastructure will...network, while lowering the overall cost of electricity to existing and future sites.” By installing...year in emissions, as compared to generating electricity solely from gas. www.e-mj.com REGIONAL NEWS |  | Belgrano, Thomas M., Diamond, Larryn W., Vogt, Yves, Biedermann, Andrea R., Gilgen, Samuel A., Al-Tobi, Khalid (2019) A revised map of volcanic units in the Oman ophiolite: insights into the architecture of an oceanic proto-arc volcanic sequence. Solid Earth, 10 (4). 1181-1217 doi:10.5194/se-10-1181-2019 | Journal (article/letter/editorial) | | units in the Oman ophiolite chlorite, epidote, or quartz. Exceptions to this typical appearance include...only weakly vesicular, with chlorite, epidote, and quartz fillings. Slightly more evolved Lasail lavas and...evolved flows. These vesicles are commonly filled by quartz, chalcedony, celadonite, zeolite, and late calcite...Suhaylah section, blasted roadcut around electricity pylon (434 460 mE, 2 683 370 mN). (d) Primitive...with limestones and cherts (Searle et al., 1980). Quartz–hematite veins (labelled Q0 in the regional map |  | | Journal (volume) | | fill their gizzards with fragments of feldspar. quartz and time-crumbled limestone. The wise gamekeepers...pair made a nest in the latticework of an electricity pylon which stands above the pond at the south-east...miles. On arrival they congregate on nearby electricity and telephone wires and on roofs and, from sunset...disintegrated and the pieces from them, mostly of white quartz, formed a gravel patch conspicuous as it was foreign...of birds, grit is entirely, or nearly all, white quartz. as though specially selected. My wife has contributed |  | | Report (issue) | | Two other papers dealing with ancient deposits in Italy and Spain take the opposite approach: from analysis...outflow channels emanate from the Tharsis volcanic province and adjacent equat- Early attempts to estimate...(black) to cratered uplands and Tharsis volcanic province (heavy shading). The black arrows show flow directions...9/12/08 4:26 PM Page 10 10 V.R. Baker volcanic province to Oceanus Borealis (Fig. 4). The Martian floods...giant bar in a deep narrow defile below the electricity pylon (arrowed). The Katun River in the foreground |  | Horton, A., Sumbler, M. G., Cox, B. M., Ambrose, K., Horton, A., Sumbler, M. G., Cox, B. M., Ambrose, K. (1995) Geology of the country around Thame - Memoir for 1:50 000 Geological Sheet 237 (England and Wales) British Geological Survey. | Book | | the base, small Lias is pale grey, spar- quartz and Tropiorhynchia. The limonitic quartzite...Kellaways Sand Member consists mainly of finegrained quartz sands, coarse silts and silty mudstones. At outcrop...Sand Member; Wilson (1968a) suggested that the quartz sand of the latter was derived from a source to...1983). The second specimen was a calcite-cemented quartz and shellfragment siltstone which did not contain...spicules, leaving voids. Medium- to finegrained quartz sand is also present; the proportion is variable |  | | Book | | highly siliceous and have been termed hornstones. Quartz, feldspar and trachytic fragments are set in a...coarse Buck Hills Grit. Other grits contain rounded quartz grains indicating some degree of aqueous transportation...lava, very fine-grained rhyolitic fragments, vein quartz and well foliated quartzite. The last two types...are sodic plagioclase (albite and oligoclase) and quartz. The micaceous matrix usually makes up 10 to 20%...spherulitic felsites and tuffs plus smaller fragments of quartz, sodic plagioclase and altered potash feldspar |  | | Report (issue) | | pebble of the basal conglomerate. Angular grains of quartz abound in a fine matrix of car bonate and phosphate...Zones and Subzones of the North-west European Province. Bull. Brit. Mus. (Nat. Hist.) Geology, 4, no...exposed. E.A.E. North-east of Kineton, in electricity pylon holes sunk between Walton Farm [343509] and...iron stone debris, and are embedded in a matrix of quartz-rich ironstone. Particles of these rocks have been...of the Marlstone Rock Bed in his 'Banbury sub-province' : Rhynchonellidae •• Tetrarhynchia tetrahedra |  | | Book | | Edited by J.E. Treagus British Tertiary Volcanic Province C.H. Emeleus and M.C. Gyopari Igneous Rocks of...and isotopes Summary 69 71 78 80 80 Southern Province, England 83 Introduction Tectonic structure...Lithostratigraphy of the Chalk in the Southern Province Grey Chalk Subgroup White Chalk Subgroup South-west...Thanet Coast, Kent Peay 263 282 Transitional Province, England 295 Introduction Tectonic structure...to Trimingham Cliffs, Norfolk 359 5 Northern Province, England Introduction Tectonic structure and sedimentological |  | | Book | | conglomeratic developments showing pebbles, mainly of quartz, ranging up to !i mm across in places. Fossils...3818). The Prc:cambrian consisu of Malvc:rnian quartz-chloritc:-muscovitc•schists, the: lamination of...alternation of layers of chloritc and mica with layers of quartz and feldspar. Often there is evidence: of dcfonnation...containing conglomcratic horizons with abundant quartz pebbles 8-10 mm in size. lbe pebbles arc mainly...phcnocryst pscudomorphs of calcite, green chlorophacite, quartz, and iron ore, apparently after amphibole. Chlorophaeitc | | Horton, A., Sumbler, M. G., Cox, B. M., Ambrose, K., Horton, A., Sumbler, M. G., Cox, B. M., Ambrose, K. (1995) Geology of the country around Thame - Memoir for 1:50 000 Geological Sheet 237 (England and Wales) British Geological Survey. | Book | | 983). The second specimen was a calcite-cemented quartz and shell fragment siltstone which did not contain...but relatively consta11t, currents ir1t1·oduci11g quartz g1·ains. DETAILS · Brill No. 1 Borehole The sequence...b11rrows; becon1ing well-bedrled, witl1 less abt1ndant quartz grai11s downwards; scattered shell and plant debris;...Edmonds in 1 966-67 from pylo11 ex cavatio11s (e.g. Pylon 1 48 [617 1 40] ) west of Wormi11gha11 (University...Member co11sists of fi11e- to 111cdiu111grained quartz sands with minor shell debris and few sl1ells. |  | | | | 983). The second specimen was a calcite-cemented quartz and shell fragment siltstone which did not contain...but relatively consta11t, currents ir1t1·oduci11g quartz g1·ains. DETAILS · Brill No. 1 Borehole The sequence...b11rrows; becon1ing well-bedrled, witl1 less abt1ndant quartz grai11s downwards; scattered shell and plant debris;...Edmonds in 1 966-67 from pylo11 ex cavatio11s (e.g. Pylon 1 48 [617 1 40] ) west of Wormi11gha11 (University...Member co11sists of fi11e- to 111cdiu111grained quartz sands with minor shell debris and few sl1ells. |  | | Book | | Tortworth .. .. .. .. Inlier .. .. .. .. 30 Basal Quartz Conglomerate (Upper Old Red Sandstone) resting...with a few mudstone partings and conglomerates the Quartz Conglomerate near base .. Major z111conformity...are not un common. Charfield area. Fine-grained quartz sandstones and shales, occasionally with frag...Keuper Marl Dolomitic Conglomerate Tintern Sst Group Quartz Conglomerate 0 500 DRIFT m► zz mo }! '- 0...major, approximately north-south, fault of pre Quartz Conglomerate age. The two sandstone divisions of |  | | Report (edition) | | resurvey a thin layer of siltstone with scattered quartz grains up to 1 mm in diameter was noticed at the...north-north-west of Llandegfedd. This unusual occurrence of quartz grains of this size, in a nor mally silty facies...and interstitial silt-grade quartz fragments. The pebbles consist of quartz (many are composite grains...and were probably derived from quartz veins and granitic bodies), quartz schist, quartzite, metamorphic...average grain size of 0 . 04 mm. In addition to quartz and calcite the siltstone contains abundant flakes |  | | Book | | Carboniferous sedimentation in the south-western Dinantian province ( e.g. George, 1 972) . Black Rock Limestone...calcite spar matrix. Uncommon angular grains of quartz occur in the lapilli and matrix. Uphill The basalt...encloses coalescing phenocrysts of augite and clay-quartz pseudomorphs after olivine. The mesostasis is patchily...Arundian biostratigraphy of the South-Western Province. Black Rock Limestone and Black Rock Dolomite...first substantiated record from the South-Western Province of Levitusia humerosa, a species diagnostic of |  | | Report (issue) | | sand partings were exposed in many places when electricity pylons were being installed. Middle Lias Marls...in most aspects belong to the Isle of Purbeck province. Of the Corallian Beds forming the northern limb...Pool, near Kimn1eridge. At the base of an electricity pylon, 230 yd S. of the bore, pieces of Virgatosphinctoides...grading down into Marty glauconitic chalk with quartz and with pellets of chalk and fossils coated with...per cent of the pebbles consist of quartz ; chert, lydianite and quartz with tourmaline form the remainder |  | | Book (volume) | | and on power poles, occasionally shorting out electricity at the latter, when nests become wet. Electric...from pesticides. [Circus maurus, Stanford, Cape Province, South Africa. Photo: J. J. Brooks/Aquila] benefit...during migration in some areas, most notoriously in Italy and on Malta. Bibliography. Agostini (1992), Brown...weeds, lined with grass, in fork of tree, bush or pylon, 2-20 m above ground. Usually 3-4 eggs (2-6); incubation...perhaps 3000 pairs, Switzerland c. 230-300 pairs, Italy 180-230 pairs (in decline), Poland c. 300-500 pairs |
|
