 | | Journal (article/letter/editorial) | | with the extrusion of keratophyric tuffs in the Lower Devonian. The majority of extra ves in the Middle...Upper Devonian the Chipley pillow lavas were extruded: it is shown that these lavas were widespread and may...may probably be correlated with similar lavas at Pentire Head in North Cornwall. Thefinalphase of volcanism...Newton Abbot there are two limestone formations, the lower being mainly a crinoid calcarenite or biostrome...areas the lower limestone passes directly into the upper. In the Dartington area, only the lower limestone |  | | Report (chapter) | | the Klodzko Metamorphic Complex, Central Sudetes, Poland M. K A ~ D Z I A L K O - H O F M O K L , 1 S. M...of Sciences, 01-452 Warsaw ul. Ks. Janusza 64, Poland, (e-mail: magdahof@iff.edu.pl) 2Institute of Geological...Wroctaw University, 50-204 Wroctaw, pl. M. Borna 38, Poland Abstract: The Ktodzko Metamorphic Complex comprises...to the south and west by Upper Carboniferous and Lower Permian clastic sedimentary sequences of the Intra-Sudetic...Crystalline High, MO: Moldanubian Zone, MS: Moravo-Silesian Zone, NP: Northern Phyllite Zone, OFZ: Odra Fault |  | | Journal (article/letter/editorial) | | formation of albite from magma The time of albitization The conditions of cooling of lavas under water...majority of cases the plagioclase appears like albite or albite-oligoclase, with an index of refraction less...in the zone 1 (ow) is from -10° to 00. Secondary albite is always greatly argillized and speckled with...observed in a few thin sections. The replacement by albite sets in from the periphery of the phenocrysts,...the cleavage, from the twin plane and so on. The albite; penetrating into the plagioclase, forms a dense |  | | Book | | 847761-SW 850766) Trevone Bay (SW 890762) Clicker Tor Quarry (SX 285614) Polyphant (SX 262822) Tintagel Head-Bossiney...Greystone Quarry (SX 364807) Pitts Cleave Quarry (SX 501761) Trusham Quarry (SX 846807) Ryecroft Quarry (SX...686814) C3 De Lank Quarries (SX 101755) C4 Luxulyan Quarry (Golden Point, Tregarden) (SW 054591 ) C5 Leusdon...Wheal Martyn (SX 003556) C11 Carn Grey Rock and Quarry (SX 033551) C12 Tregargus Quarries (SW 949541 )...(Folly Rocks) (SW 573280) C18 Cameron (Beacon) Quarry (SW 704506) C19 Cligga Head area (SW 738536) 6 |  | | Journal (article/letter/editorial) | | VI.—JUNE, 1911. ABTICLES. I.—Ox SOME BRITISH PILLOW-LAVAS AND THK ROCKS ASSOCIATED WITH THEM. By HEXKY...the Dalradian Schists of the West of Scotland pillow-lavas were first recognized by Peach (30). They are...shales, and limestones of the Central Highlands. Albite-diabases represent the intrusive phase, and there...Anglesey and the Lleyn District of Carnarvonshire pillow-lavas with variolitic structure have been described...pre-Cambrian. Cambrian (?). Radiolarian cherts and pillow-lavas occur in a narrow strip along the southern border |  | | Journal (article/letter/editorial) | | 2016 part 1] LOWER CARBONIFEROUS SPILITES. 11 2. On a SPILITIC F~tCIES o f LOWER C~RBO~'IFEROUS L~vA-FLows............................................. The Lavas .................................. ~..............tuff. All these rocks occur entirely in beds of Lower Carboniferous age. The lava-flows an4 ashes were...few small occurrences in the south-west of the county which are in the Limestone Shales overlying the...prolonged subsidence. Dr. Bemrose 1 has classified the lavas and sills under three heads, namely: (1) olivine-dolerites |  | | Journal (article/letter/editorial) | | aspects of their mineralogy. The presence in them of albite and apparently primary chlorite, in association...Group. In these three areas spilitic lavas, sometimes with pillow structure, occur in association with...obscure, more or less, the characteristics of the lavas (cf. Turner and Verhoogen, 1951, p. 203). Amongst...unmetamorphosed spilites consist principally of albite, pyroxene, chlorite and iron ore with a small amount...prehnite, epidote, pumpellyite or calcite. The albite is always the low temperature form and is, in general |  | | Journal (article/letter/editorial) | | Deep-sea origin of Ordovician pillow basalt and associated sedimentary rocks, northern Nevada CHESTER...chert and argillaceous rocks of the Greenstone pillow lavas interlayered with pelagic sedimentary Shoshone...much deeper water. metres to 100 m thick within lower or middle parts of Ordovician Roberts (1964, p....compared with data 118° 117" 116° 115° from modern lavas, indicate that the nonvesicular and slightly vesicular...by the pillow lavas suggest that these rocks are quiet-water deposits laid down across the lower part of |  | Hanžl, Pavel, Janoušek, Vojtěch, Soejono, Igor, Buriánek, David, Svojtka, Martin, Hrdličková, Kristýna, Erban, Vojtěch, Pin, Christian (2019) The rise of the Brunovistulicum: age, geological, petrological and geochemical character of the Neoproterozoic magmatic rocks of the Central Basic Belt of the Brno Massif. International Journal of Earth Sciences, 108 (4) 1165-1199 doi:10.1007/s00531-019-01700-2 | Journal (article/letter/editorial) | | setting. Also, the associated sporadic rhyolitic lavas and tuffs are Nd primitive, showing a short mean...Devonian–Carboniferous sediments of the Moravian-Silesian Zone and flysch nappes of the Outer Carpathian...Vavrdová (2004) described marked similarities of Lower Cambrian acritarch assemblages from the southern...Devonian to Carboniferous sediments of the Moravian-Silesian Zone was tectonically reworked (Kettner 1949;...passing to greenschists dominate the MBZ and pillow lavas are only exceptionally preserved (Fig. 3a). |  | | Journal (article/letter/editorial) | | IV.-THE IGNEOUS ROCKS J62 16 5 The Pillow-lava or Spilite -Albite-diabase-Al bite-pr ole robase or Minverite-Alteration...the most part of rocks of N ORUpper Devonian and Lower Carboniferous age, including both igneous and sedimentary...these headlands is Pentire-s-a towering mass of pillow-lava with vertical cliffs rising majestically from...dykes of felsite and mica-trap. The sediments and lavas have been folded, faulted and sheared, and in great...Clymenia, Black slates, often gritty. FRASNIAN: Pillow-lava, tuff and radiolarian chert. GONIATITE BEDS |  | | Journal (article/letter/editorial) | | which may be conveniently left at a road-metal quarry in Glencoe Quartzite (1916, p. 43; 1934, p. 518)...Quartz-keratophyre. (6) Albitic porphyry, (c) Spilitic pillow lava. The basement rock of Great King Island is...argillite and a little quartz conglomerate. The pillow lava outcrops near sea-level in a band about 40...traceable in the sea-cliffs for about 200 yards. The pillow form is seldom conspicuous and, in the field, the...conformity with that of the pillow lavas, which are not far distant but at a much lower level, it would appear |  | | Journal (article/letter/editorial) | | road cut, located in Springfield Township, Union County, New Jersey, formed a major mineral collecting...Construction Materials, the last operator of the quarry, ceased operation in 1977, and since 1983 the pit...Company quarry in the Borough of Watchung, Somerset County—sometimes known as the Scotch Plains quarry, or...or the Weldon quarry —is about AVi miles southwest of the Summit quarry and exposes the same stratigraphic... Although the quarry has been active for more than fifty years, access to this quarry has been quite |  | | Journal (article/letter/editorial) | | Amsterdam - Printed in The Netherlands [51 DEFORMED PILLOW LAVAS FROM THE CENTRAL HOHE TAUERN, AUSTRIA, AND THEIR...Revised version received February 10, 1979 Deformed pillow structures are described in greenstones from the...perpendicular to the stretching direction. The pillow rims are highly enriched in epidote, whereas the...of the alteration is unlike that described from pillow basalts altered on the sea floor, and is therefore...epidote-banded greenstone in which recognisable pillow structures are largely absent. 1. Introduction |  | | Report (issue) | | Pillowed Lavas, I: Intrusive Layered Lava Pods and Pillowed Lavas Unalaska Island, Alaska and Pillowed...Pillowed Lavas, II: A Review of Selected Recent Literature By GEORGE L. SNYDER and GEORGE D. FRASER SHORTER...Washington 25, D.C. Pillowed Lavas, I: Intrusive Layered Lava Pods and Pillowed Lavas Unalaska Island, Alaska...petrographic descriptions of altered andesitic pillow lava, Reef Point. __________----_-_2. Chemical...dacitic lava pod layers and associated unaltered pillow lava, Buttress Point._________________________ |  | | Journal (article/letter/editorial) | | oldest visible Pre-Cambrian rocks in Lleyn are pillow lavas and sediments of the Gwna Group. They are succeeded...tuffs, and a thick and varied series, comprising pillow lavas, limestones, quartzites and phyllites, identified...Dinllaen (275415)". This promontory consists of pillow lavas with a general steep northwesterly dip. Bun-shaped...effects of which have not been evaluated. These pillow lavas resemble those near Newborough, Anglesey, which...b. Dinas Bnch, Dinas Fawr and Mynydd Carreg. Pillow lavas again outcrop extensively between Porth Oer |  | | Report (issue) | | rimming epiOote in upper right). pumpellyite (lower This assemblage is left), representative of...the Tiburon Peninsula) as well as zeolite grade pillow basalts (in the Marin headlands). greenschist...sizes generally much less than 1mm) and 4. lower grade, ranging from zeolite to blueschist-greenschist...includes: magnesiotaramite+garnet+epidote+white mica-albite-quartzclinopyroxene (generally mon. Many By ...rocks in addition to more vein minerals such as albite and quartz. All stages of mineral growth, except |  | | Report (volume) | | Pyroclastic rocks._____________________________________ Lavas._______________________________________________...and gabbro.-._-_--____--_------_____-__--_---_ Albite granite.________________________________________...cs_ _ __ _______________________-_____-___---_ Lavas._______________________________________________....-___.--_ 118. Raised marine platform, western quarry, Shemya_______________________________ 119. Furrowed...and argillite, and submarine pyroclastics and pillow lavas, many of which are spilitic or keratophyric |  | | Journal (article/letter/editorial) | | of the upper oceanic crust, which comprised pillow lavas and associated aluminous sediments that filled...garnet–phengite–quartz rocks under pressure no lower than 21 kbar at a temperature of ~650°C. Alternatively...Eclogite Province, high-pressure granulite, phengite, pillow lava INTRODUCTION Partial melting of subducted...subduction-related eclogites were studied in the Kuru-Vaara quarry (Figs 2 & 3). The occurrence of these veins had...Salma, Shirokaya Salma and Chalma (the Kuru-Vaara quarry. At Uzkaya Salma there is a 300–500 m wide outcrop |  | Zhaochong, Zhang, Jingwen, Mao, Robinson, Paul T., Zhou, Mei-Fu, Guochao, Zuo, Jianmin, Yang, Zhiliang, Wang, Zuoheng, Zhang (2003) The Aoyougou Mafic-Ultramafic Complex in the North Qilian Mountains, Northwest China: A Possible Middle Proterozoic Ophiolite along the Southern Margin of the North China Craton. International Geology Review, 45 (9) 841-856 doi:10.2747/0020-6814.45.9.841 | Journal (article/letter/editorial) | | sequence of gabbro and diorite, pillowed and massive lavas, diabase dikes, and chert, an assemblage tentatively...of present-day E-MORB or ocean-island lavas. All of the lavas have relatively low MgO contents and Mg...patterns and are significantly more primitive than the lavas. Based on the lava geochemistry, the nature of the...ultramafic intrusions. Based on the geochemistry of the lavas, Xiao et al. (1978) first interpreted the complex...Qilian is a Caledonian fold belt, which comprises Lower Paleozoic rocks and the Precambrian basement as |  | Stephenson, D., Bevins, R. E., Millward, D., Highton, A. J., Parsons, I., Stone, P., Wadsworth, W. J. (1999) Chapter 2: Early Ordovician volcanic rocks and associated opholitic assemblages of Scotland. In Caledonian Igneous Rocks of Great Britain (Geological Conservation Review Series - Geological Conservation Review No. 17. Joint Nature Conservation Committee, Peterborough. p.27-104. | Book (chapter) | | back-arc basins. pelagic sedimentary rocks mafic pillow lavas sheeted mafic dykes A gabbro, layered and/or...common association of serpentinite, gabbro, spilitic pillow lava and pelagic sedimentary rock has long been...to seismic layer 3 of the oceanic crust; the pillow lavas form Associated rock types include: overlying...Ma (U-Pb on zircon in a 'plagiogranite', sensu albite-granite, vein; Spray and Dunning, 1991) and the...(Figure 2.2) is not preserved in Shetland but the lower part is exceptionally well developed and exposed |  | Tyrrell, G.W., Begg, J.L., Pringle, J., Weir, J., Henderson, S.M.K., Lamont, A. (1933) Summer Field Meeting, 1932; Girvan-Ballantrae. Proceedings of the Geologists' Association, 44 (1) 57 doi:10.1016/s0016-7878(33)80025-3 | Journal (article/letter/editorial) | | rocks within the district, especially the spilitic lavas and diabase-porphyrites of the Ballantrae and Lendalfoot...association, at least spatially, with the spilites and albite-dolerites of South Ayrshire, belonged to the same...greywacke matrix, consisting of fragments of the Arenig lavas. If the serpentine and gabbros, etc., are Arenig...phases of sedimentation, were again seen in the quarry on the main road at Pinmore, where a graptolite...the old quarry at Aldons the party saw the syncline of Stinchar Limestone resting upon lavas of the Ballantrae |  | | Book | | MOLDAN UBIAN s. str. Gfohl unit < Ci MORAVO - SILESIAN (medium to high grade) D Drosendorf unit (low...Evolution S. VRANA, P. BLUMEL, and K. VIII Moravo-Silesian Zone VIII. A Introduction Z. MfsAR and M. X...Igneous Activity (Cadomian Plutonism in the Moravo-Silesian Basement) F. FINGER, G. FRASL, A. DUDEK, E. JELiNEK...and Metallurgy AI. Mickiewicza 30 30059 Krakow Poland P. BLilMEL Institut fur Mineralogie Technische...Geological Sciences Cybulskiego 30 50205 Wroclaw Poland E. JELINEK Department of Geology Charles University |  | | Book | | Field of the Fore-Sudetic Monocline (Southwestern Poland) S. Speczik (with 6 Figures) . . . . . . . . ....of Organic Material in the Kupferschiefer of the Lower Rhine Basin R. Diedel and W. Piittmann (with 7 Figures)...Langenstrassen F (1983) Neritic sedimentation of the Lower and Middle Devonian in the Rheinische Schiefergebirge...Field of the Fore-Sudetic Monocline (Southwestern Poland) S. SPECZIK J Abstract Fluid inclusion studies...rocks of the Fore-Sudetic Monocline of southwest Poland. Surprisingly high temperatures determined for |  | Greenberger, Rebecca N., Mustard, John F., Cloutis, Edward A., Mann, Paul, Wilson, Janette H., Flemming, Roberta L., Robertson, Kevin M., Salvatore, Mark R., Edwards, Christopher S. (2015) Hydrothermal alteration and diagenesis of terrestrial lacustrine pillow basalts: Coordination of hyperspectral imaging with laboratory measurements. Geochimica et Cosmochimica Acta, 171. 174-200 doi:10.1016/j.gca.2015.08.024 | Journal (article/letter/editorial) | | alteration and diagenesis of terrestrial lacustrine pillow basalts: coordination of hyperspectral imaging...alteration and diagenesis of terrestrial lacustrine pillow basalts: coordination of hyperspectral imaging...alteration and diagenesis of terrestrial lacustrine pillow basalts: coordination of hyperspectral imaging...We investigate an outcrop of ~187 Ma lacustrine pillow basalts of the Talcott Formation 33 exposed in...Connecticut, USA, focusing on coordinated analyses of one pillow lava to 34 characterize the aqueous history of |  | | Journal (article/letter/editorial) | | Dalradian Pillow Lavas, Ardwell Bridge, Banffshire By SHEILA M. A. MACGREGOR and JOHN L. ROBERTS ABSTRACT...ABSTRACT Eight metabasic bands with pillow structures are exposed in a synclinal area immediately to...leading from the production of syntectonic biotite-albite-sphene-iron ore schists, through a stage of static...with that of other occurrences of Dalradian pillow lavas, both in Scotland and in Ireland. INTRODUCTION...INTRODUCTION IN Scotland, Dalradian pillow lavas have previously been recorded by Peach (1904) from the Tayvallich |
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