View allAll Photos Tagged Periphery
Periphery performs as part of the 2013 Summer Slaughter Tour at The Fillmore in Silver Spring, Maryland.
August 2nd, 2013
Photo © Terry Dobbins 2013
**DO NOT USE WITHOUT MY PERMISSION**
© sergione infuso - all rights reserved
follow me on www.sergione.info
You may not modify, publish or use any files on
this page without written permission and consent.
-----------------------------
Periphery è una band metal americana di Bethesda, Maryland; formata dal chitarrista Misha Mansoor nel 2005 che lentamente ha guadagnato una reputazione su internet, principalmente aggiornando regolarmente un account Soundclick, forum di Meshuggah e John Petrucci, e i message board su sevenstring.org.
Periphery performs as part of the 2013 Summer Slaughter Tour at The Fillmore in Silver Spring, Maryland.
August 2nd, 2013
Photo © Terry Dobbins 2013
**DO NOT USE WITHOUT MY PERMISSION**
of Periphery, live @ Mediolanum Forum (Assago, Milan, Italy) on Feb. 21st 2012.
------
This image is copyright © Francesco Castaldo. All right reserved. This photo must not be used under ANY circumstances without written consent.
Questa immagine è protetta da copyright © Francesco Castaldo. Tutti i diritti sono riservati. L'immagine non deve essere utilizzata in nessun caso senza autorizzazione scritta dell'autore.
On Saturday 7 October 2017, UCL Urban Laboratory and Folkestone Triennial 2017 held the second event in the EDGE symposium series, exploring the concept of situated practice in contemporary art, architecture and urbanism. The events bring together practitioners and thinkers at three ‘edge’ locations connected by the High Speed 1 railway, which acts a geographical link and embodies ideas associated with community, connectivity and escapism.
In framing these events, we have considered 'edge' as: 'Where an area that is known or privileged meets another that is unknown or ignored; a point of balance between contrary or diverse phenomena; a place of connectivity and interaction.'
'Periphery' was a day of enquiry to consider the environs of the Queen Elizabeth Olympic Park. Investment for the 2012 Games brought rapid development to the previously neglected Stratford area. Here East, within the former press and broadcasting centre of the Games, is envisaged as a cluster of innovators and digital makers, whilst the Stratford Waterside development will bring new institutions including the V&A, Sadler's Wells, London College of Fashion, and UCL.
Keynote: Jill Magid and Do Ho Suh
Speakers: Amica Dall (Assemble), Anna Harding (SPACE), Jane Rendell, Kreider + O’Leary, Liza Fior (MUF), Oreet Ashery and Mi Park, Torange Khonsari (Public Works), and Stephen Pritchard
The series is organised by the UCL Urban Laboratory and Folkestone Triennial 2017, with additional support from the Slade School of Fine Art, UCL and The Bartlett School of Architecture, UCL.
#EdgePeriphery
Report Date: July 12, 2013
Report Title: Sudan's Bloody Periphery: The Toll on Civilians from the War in Blue Nile State
Photo Credit: Viktor Pesenti/Enough Project
February 4th, 2015 - Periphery performs live at Saint Andrews Hall in Detroit, Michigan. Credit: Chris Balow. www.schwegweb.com
Impending thunderstorms at the edge of the city center of Aalborg, Denmark. A few moments later, I was getting drenched, and cycling as fast as I could on the municipal blue bike.
Periphery performs as part of the 2013 Summer Slaughter Tour at The Fillmore in Silver Spring, Maryland.
August 2nd, 2013
Photo © Terry Dobbins 2013
**DO NOT USE WITHOUT MY PERMISSION**
eArt-wiki-hive - tap-dancing-wiki - periphery feeds [en]
Feeds provided by the periphery of connected web-services and search queries associated with the tap-dancing-wiki: ← = is provided by the user account xxx - tap-dancing-wiki → or = is included into the page in the tap-dancing-wiki
Feeds provided by user accounts for the tap-dancing-wiki on connected web-services importing its soup:
app.net-tap-dancing-wiki-feed ← app.net - tap-dancing-wiki
blogger-tap-dancing-wiki-feed ← blogger - tap-dancing-wiki
delicious-tap-dancing-wiki-feed ← delicious - tap-dancing-wiki
diigo-tap-dancing-wiki-feed ← diigo - tap-dancing-wiki
facebook-page-tap-dancing-wiki-notifications-feed
→ facebook page tap-dancing-wiki
facebook-tap-dancing-wiki-feed
→ facebook tap-dancing-wiki
flickr-tap-dancing-wiki-feed ← flickr - tap-dancing-wiki
friendfeed-tap-dancing-wiki-feed ← friendfeed - tap-dancing-wiki
google-plus-page-tap-dancing-wiki-feed
→ google plus page tap-dancing-wiki
google-plus-tap-dancing-wiki-feed
→ google plus tap-dancing-wiki
livejournal-tap-dancing-wiki-feed ← livejournal - tap-dancing-wiki
soup.io-tap-dancing-wiki-feed ← soup.io - tap-dancing-wiki
twitter-tap-dancing-wiki-feedtwitter tap-dancing-wiki
wordpress-tap-dancing-wiki-feed ← wordpress - tap-dancing-wiki
More feeds in the periphery of connected web-services:
bit.ly-tap-dancing-wiki-feed ← bit.ly - tap-dancing-wiki
yahoo-pipes-tap-dancing-wiki-feed → yahoo pipes tap-dancing-wiki
Feeds for the search queries:
blogs-with-tap-dancing-feed
google-blog-search-tap-dancing-feed
icerocket-blog-search-tap-dancing-feed
regator-blog-search-tap-dancing-feed
twingly-blog-search-tap-dancing-feed blogs with tap dancing
delicious-tag-TapDancing-feed → delicious tag TapDancing
friends-tap-dancing-wiki-feed
diigo-friends-tap-dancing-wiki-feed
friendfeed-friends-tap-dancing-wiki-feed friends tap-dancing-wiki
google-plus-search-tap-dancing-feed → google plus search tap dancing
google-search-tap-dancing-feed → google search tap dancing
groups-tap-dancing-feed
to do groups tap dancing
Mµs-tag-or-with-tap-dancing-feed → Mµs tag or with tap dancing
Mµs-tag-TapDancing-feed Mµs tag TapDancing
Mµs-with-tap-dancing-feed Mµs with tap dancing
news-tap-dancing-feed
google-news-tap-dancing-feed
yahoo-news-tap-dancing-feed news tap dancing
pages-tap-dancing-feed
to do pages tap dancing
twitter-tag-TapDancing-feed
twitter-with-tap-dancing-feed
videos-tap-dancing-feed
dailymotion-video-search-tap-dancing-feed
YouTube-tag-TapDancing-feed
YouTube-video-search-tap-dancing-feed videos tap dancing
about the latest modification
Mattis Manzel:
The day-page-set periphery feeds has been started.
DoITPoMS, University of Cambridge
This sample shows a combination of white and grey cast irons. The core consists of a grey cast iron with a periphery of white cast iron.
System
Fe-C-X
Composition
Fe, C 2-4, other constituents (wt% typical) (Cast iron)
Reaction
Processing
Applications
Sample preparation
Technique
Reflected light microscopy
Contributor
Prof T W Clyne
Organisation
Department of Materials Science and Metallurgy, University of Cambridge
Fluorite from Illinois, USA. (public display, Geology Department, Wittenberg University, Springfield, Ohio, USA)
A mineral is a naturally-occurring, solid, inorganic, crystalline substance having a fairly definite chemical composition and having fairly definite physical properties. At its simplest, a mineral is a naturally-occurring solid chemical. Currently, there are about 5400 named and described minerals - about 200 of them are common and about 20 of them are very common. Mineral classification is based on anion chemistry. Major categories of minerals are: elements, sulfides, oxides, halides, carbonates, sulfates, phosphates, and silicates.
The halides are the "salt minerals", and have one or more of the following anions: Cl-, F-, I-, Br-.
Fluorite is a calcium fluoride mineral (CaF2). The most diagnostic physical property of fluorite is its hardness (H≡4). Fluorite typically forms cubic crystals and, when broken, displays four cleavage planes (also quite diagnostic). When broken under controlled conditions, the broken pieces of fluorite form double pyramids. Fluorite is a good example of a mineral that can be any color. Common fluorite colors include clear, purple, blue, green, yellow, orange, and brown. The stereotypical color for fluorite is purple. Purple is the color fluorite "should be". A mineral collector doesn't have fluorite unless it's a purple fluorite (!).
Fluorite occurs in association with some active volcanoes. HF emitted from volcanoes can react with Ca-bearing rocks to form fluorite crystals. Many hydrothermal veins contain fluorite. Much fluorite occurs in the vicinity of southern Illinois (Mississippi Valley-type deposits).
The fluorite specimen shown above is from a Mississippi Valley-type deposit in southern Illinois. Commonly abbreviated "MVT", Mississippi Valley-type deposits are named for a series of mineral deposits that occur in non-deformed platform sedimentary rocks along the Upper Mississippi River Valley, USA. Many specific minerals occur in MVT deposits, but are dominated by galena, sphalerite, barite, and fluorite. These minerals occur in caves and karst, paleokarst structures, in collapse fabrics, in pull-apart structures, etc. MVT deposits in America are mined as important, large sources of lead ore and zinc ore. The classic areas for MVT deposits are southern Illinois, the tristate area of Oklahoma-Missouri-Kansas, northern Kentucky, southwestern Wisconsin, and southeastern Missouri. The minerals are hydrothermal in origin and were precipitated from basinal brines that were flushed out to the edges of large sedimentary basins (e.g., the Illinois Basin and the Black Warrior Basin). In basin edge areas, the brines came into contact with Mississippian-aged carbonate rocks (limestone and dolostone), which caused mineralization. The brines were 15% to 25% salinity with temperatures of 50 to 200 degrees Celsius (commonly 100 to 150 degrees C). MVT mineralization usually occurs in limestone and dolostone but can also be hosted in shales, siltstones, sandstones, and conglomerates. Gangue minerals include pyrite, marcasite, calcite, aragonite, dolomite, siderite, and quartz. Up to 40 or 50 pulses of brine fluids are recorded in banding of mineral suites in MVT deposits (for example, sphalerite coatings in veins have a stratigraphy - each layer represents a pulse event). Each pulse of water was probably expelled rapidly - overpressurization and friction likely caused the water to heat up. Some bitumen (crystallized organic matter) can occur, which is an indication of the basinal origin of the brines. The presence of asphalt-bitumen indicates some hydrocarbon migration occurred. Some petroleum inclusions are found within fluorite crystals and petroleum scum occurs on fluorite crystals. MVT deposits are associated with oil fields and the temperature of mineral precipitation matches the petroleum window. The brines may simply have accompanied hydrocarbon fluids as they migrated updip.
The high temperatures of these basin periphery deposits wasn't necessarily influenced by igneous hydrothermal activity. Hot fluids can occur in basins that are deep enough for the geothermal gradient to be ~100 to 150 degrees Celsius. If a permeable conduit horizon is present in a succession of interbedded siliciclastic sedimentary rocks, migration of hot, deep basinal brines may be quick enough to get MVT deposit conditions at basin margins.
MVT deposits occur in the Upper Mississippi Valley of America as well as in northern Africa, Scandinavia, northwestern Canada, at scattered sites in Europe, and at some sites in the American Cordillera. Some of these occurrences are in deformed host rocks. MVT deposits have little to no precious metals - maybe a little copper (Cu). Mineralization is usually associated with limestone or dolostone in fracture fillings and vugs. Little host rock alteration has occurred - usually only dolomitization of limestones.
The age of the host rocks in the Mississippi Valley area varies - it ranges from Cambrian to Mississippian. Dating of mineralization has been difficult, but published ages indicate a near-latest Paleozoic to Mesozoic timing.
MVT deposits in the Upper Mississippi River area are often divided into three subtypes based on the dominant mineral: 1) lead-rich (galena dominated); 2) zinc-rich (sphalerite dominated); and 3) fluorite-rich.
The fluorite specimen shown here is from the Illinois-Kentucky Fluorspar District ("fluorspar" is a very old name for fluorite), which is an MVT fluoritic subtype. Fluorite and fluorite-rich rocks are mined for the fluorine, which is principally used by the chemical industry to make HF - hydrofluoric acid. Fluorite mineralization in this district occurred at about 277 Ma, during the Early Permian, according to one published study (Chesley et al., 1994). Another study concluded that fluorite mineralization was much later, during the Late Jurassic (see Symons, 1994).
Locality: Denton Mine, near the town of Cave-in-Rock, Hardin County, far-southern Illinois, USA
------------------------
Photo gallery of fluorite:
www.mindat.org/gallery.php?min=1576
-----------------------
Some info. on Mississippi Valley-type deposits was synthesized from:
Chesley et al. (1994) - Direct dating of Mississippi Valley-type mineralization: use of Sm-Nd in fluorite. Economic Geology 89: 1192-1199.
Symons (1994) - Paleomagnetism and the Late Jurassic genesis of the Illinois-Kentucky fluorspar deposits. Economic Geology 89: 438-449.
Rakovan (2006) - Mississippi Valley-type deposits. Rocks & Minerals 81(January/February 2006): 69-71.
Fisher et al. (2013) - Fluorite in Mississippi Valley-type deposits. Rocks & Minerals 88(January/February 2013): 20-47.
© sergione infuso - all rights reserved
follow me on www.sergione.info
You may not modify, publish or use any files on
this page without written permission and consent.
-----------------------------
Periphery è una band metal americana di Bethesda, Maryland; formata dal chitarrista Misha Mansoor nel 2005 che lentamente ha guadagnato una reputazione su internet, principalmente aggiornando regolarmente un account Soundclick, forum di Meshuggah e John Petrucci, e i message board su sevenstring.org.
Shot this some days ago, during a bike ride in the northern periphery of the city. The sun was setting and the light was quite strange.
Canon EF 50mm f/1.8 @ f/1.8, manual focus.
It's a must to view large.