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Topic: Porphyrites

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	Saudi Aramco World : Via Porphyrites
		The road from the quarry westward to Qena, which Ptolemy the Geographer put on his second-century map, was a route described first by Strabo, and it is to this day known as the Via Porphyrites, the Porphyry Road.
		Archeologist Steven Sidebotham of the University of Delaware, an authority on the Roman roads of the Red Sea mountains, surveyed the Via Porphyrites in 1989.
		I would have to miss the last water station—which is said to be completely ruined—and take a truck down to Qena, where Rome's presence still resonates in the magnificent Temple of Denderah— a temple which, ironically, lacks any sign of porphyry decoration.
	www.saudiaramcoworld.com /issue/199806/via.porphyrites.htm (3373 words)

	Porphyry (Petrology) - LoveToKnow 1911
		The porphyritic intrusive rocks with large crystals of augite, olivine, biotite, and hornblende are for the most part grouped under the lamprophyres; while the term porphyry is rarely now applied to any of the effusive rocks or lavas.
		Porphyrites occur as dikes which accompany masses of diorite, and are often called diorite-porphyrites; they differ from diorites in few respects except their porphyritic structure.
		The hornblende of the porphyrites is often green but sometimes brown, resembling that of the lamprophyres, a group from which the porphyrites are separated by their containing phenocrysts of felspar, which do not occur in normal lamprophyres.
	www.1911encyclopedia.org /Porphyry_%28Petrology%29 (1438 words)

	VIIVI - Online Information article about VIIVI
		diorite, and are often called diorite-porphyrites; they differ from diorites in few respects except their porphyritic structure.
		lamprophyres, a group from which the porphyrites are separated by their containing phenocrysts of felspar, which do not occur in normal lamprophyres.
		dike rocks known as ortlerites and suldenites are porphyrites containing much green or brown hornblende and augite; these, however, hardly require a distinctive designation.
	encyclopedia.jrank.org /VAN_VIR/VIIVI.html (588 words)

	Mons Porphyrites (Site not responding. Last check: )
		In den 1930ern wurde der Steinbruchbetrieb unter Prinz Faruk kurzfristig wieder aufgenommen, der Stein fand vor allem in Kairo Verwendung.
		Die Römer nannten das Material lapis porphyrites (Purpurstein); in Italien wird es porfido rosso Egiziano oder porfido rosso antico genannt.
		Man nannte sie Via Porphyrites, sie wird von Ptolemäus und Strabo beschrieben.
	www.jenskleemann.de /wissen/bildung/wikipedia/m/mo/mons_porphyrites.html (1026 words)

	The Geology of the San Juan Islands (Igneous Rocks)
		In the eastern part of the map-area, the porphyrites are usually free from the later intrusions, and in such cases the rocks are remarkably fresh.
		The field evidence indicates that the porphyrites were feeders to former flow rocks, and the present outcrops represent the uppermost portions of the dikes.
		On Orcas and Blakeley islands the metamorphosed remnants of somewhat coarser-textured ellipsoidal porphyrites are intruded by the off-shoots from the late Jurassic batholith.
	www.cr.nps.gov /history/online_books/geology/publications/state/wa/uw-1927-2/sec4.htm (4390 words)

	EXPERIMENT IN GEOSCIENCES, volume 5, number 2: Magmatic systems, fluid magmatic interaction, melts properties
		The atachites, representing the upper horizons of the intrusion, are enriched in titanium, phosphorus, and alkalies, while the pyroxene porphyrites of the base are enriched in magnesium and calcium.
		It was established that the pyroxene porphyrites of the intrusion base contain the most Cl-rich apatite, while the upper more acidic rocks are depleted in chlorine, but enriched in fluorine.
		The second phase was charaterized by gradual increase of chlorine and fluorine contents in apatite at constant Cl/F ratio upward the section (from the pyroxene porphyrites to the pyroxene-plagioclase and plagioclase porphyrites and atachites).
	library.iem.ac.ru /exper/v5_2/np2.htm (5757 words)

	Spartanburg SC \| GoUpstate.com \| Spartanburg Herald-Journal (Site not responding. Last check: )
		However, the Egyptian quarry was not available and a similar red quartzite from Finland was chosen, in spite of its purchase from the Russian Empire, an enemy of France.
		Rhomb porphyry is a volcanic rock with gray-white large porphyritic rhomb shaped phenocrysts enbedded in a very fine grained red-brown matrix.
		Rhomb porphyry lavas are known only from three rift areas: The East African Rift (including Mount Kilimanjaro), Mount Erebus near the Ross Sea in Antarctica, and the Oslo graben in Norway.
	www.goupstate.com /apps/pbcs.dll/section?category=NEWS&template=wiki&text=Porphyry_(geology) (839 words)

	GTOS :: TEMS database : T.Site : Show
		But this would also include porphyry and porphyrites, the tuffs and melaphyres together with the conglomerates, sandstones and clay-stones deposited in the former basin of the Oberhof trough of the Variscan mountains.
		The relatively nutrient-rich soiles had their origin in porphyrite, melaphyre, amphibolite, the metamorphous clay slate and in the valley bottoms.
		By contrast, the soils consiting of porphyry and granite are oligotrophic.
	www.fao.org /gtos/tems/tsite_show.jsp?TAB=4&TSITE_ID=1173 (836 words)

	USGS Bulletin 1309 The geologic story of Isle Royale National Park
		The finer grained porphyrites and traps are also generally more resistant to erosion than ophitic flows of similar thickness and thus tend to stand out topographically, making it easier to trace them across the countryside and adding to their usefulness in geologic mapping.
		Fine-grained porphyrite can be seen in the Scoville Point Flow at various points on the north shoreline of Rock Harbor, as at Threemile Campground, on Scoville Point, and on the south sides of Edwards and North Government Islands.
		However, as a progressive zone of cooling, solidification, and cracking proceeds from the surface of a flow into its interior, a point may be reached where the shrinkage forces may be uniform enough for earlier irregular jointing to give way to the formation of columnar joints.
	www.minsocam.org /MSA/collectors_corner/usgs/b1309.htm (6242 words)

	Al-Ahram Weekly \| Travel \| Stoned in the Eastern Desert
		The stone-filled carts were pulled by oxen from the quarries to the Nile and floated by barge and ship to Rome and far corners of the Empire.
		Among them was George Schweinfurth, founder of the Royal Geographic Society in Cairo, who came in 1888 and wrote a detailed description of the town.
		Under Diocletian the place where they were sent was referred to as the Mount of Fire, and it is believed this was Mons Porphyrites, now known as Gabal Al-Dukhan or Mount of Smoke.
	weekly.ahram.org.eg /2002/610/trav2.htm (1216 words)

	Egypt - The Red Sea Coast, Mons Porphyrites (Mountain of Poryhyry)
		Egypt - The Red Sea Coast, Mons Porphyrites (Mountain of Poryhyry)
		Mons Porphyrites (Mountain of Poryhyry) at Gebel Abu Dukhan (Father of Smoke) was an extensive Roman mining operation of the pinkish-purple Poryhyry, which was used in temples, baths, sarcophagi and statues.
		The emperor Hadrian erected the Temple of Serapis, and a stele discovered in 1823 indicates that there was a Christian church, probably financed by Flavius Julius.
	www.touregypt.net /Mons_Porphyrites.htm (93 words)

	VIIVI - Encyclopedia Britannica - VIIVI - JCSM's Study Center
		group there are corroded blebs or porphyritic quartz: these rocks are called quartz-porphyrites, and are distinguished from the granite-porphyries by the scarcity or absence of orthoclase.
		The hornblende of the porphyrites is often green but sometimes brown, resembling that of the
		and chemical, composition as the parent rocks but with a porphyritic instead of granitic structure.
	www.jcsm.org /StudyCenter/Encyclopedia_Britannica/VAN_VIR/VIIVI.html (602 words)

	C:\HMPRO2\gifs\geoarc30.htm (Site not responding. Last check: )
		Variety 'a' is the lapis porphyrites ("purple stone"), rubet porphyrites ("red porphyrites") and leptopsephos ("small pebbles", a reference to the phenocrysts) of the Romans, and the porfido rosso antico ("ancient red porphyry") and porfido rosso Egiziano ("Egyptian red porphyry") of the Italian stonecutters.
		Variety 'b' is the lapis hieracitis or ieracites ("hawk stone") of the Romans, and the porfido verde Egiziano ("Egyptian green porphyry") of the Italian stonecutters.
		Variety 'c' is the lapis porphyrites niger ("fl porphyrites stone") of the Romans, and the porfido nero ("fl porphyry") of the Italian stonecutters.
	rubens.anu.edu.au /egypt/harrell/Hardst_Quar.html (2231 words)

	Egypt - 2006 : MONS PORPHYRITES
		The Mons Porphyrites, today Gebel Abu Dukhan, was a Roman quarry, in the Eastern Desert of Egypt.
		It lies on the road between the Red Sea and Maximianopolis, the modern Qena.
		The red porphyry was an imperial symbol and the delivery room of the palace in Constantinople was panelled with porphyry, that is why the children of reigning monarch were called "porphyrogenitos" i.e.
	www.euratlas.com /mons_porphyrites/index.html (110 words)

	The University of Exeter - SoGAER - Department of Archaeology
		Prof Val Maxfield's research is focussed on the frontier provinces of the Roman Empire and is particularly concerned with the organisation and role of the Roman army.
		Mons Claudianus and Mons Porphyrites are both the sites of Roman imperial quarries where high quality stone was extracted for use in prestige buildings and (in the case of the porphyry from Mons Porphyrites) for statuary.
		The sites, which have lain untouched since the Roman period, are remote from human habitation and have survived in a remarkable state of preservation.
	www.sogaer.ex.ac.uk /archaeology/research/rmons.shtml (343 words)

	The Global Egyptian Museum \| E.3406
		Because systematic exploitation of porphyry did not occur before the second half of the 1st century AD, it is very probable that this Brussels piece dates to the Roman Period.
		Deze in Egypte vrij zeldzame rode steen is afkomstig van een afzetting op Gebel Dokhan (Mons porphyrites) in de Oostelijke Woestijn.
		Aangezien een systematische ontginning van porfier niet bestond voor de tweede helft van de 1e eeuw van onze tijdrekening, is het vrij waarschijnlijk dat het stuk uit Brussel dateert uit de Romeinse Periode.
	www.globalegyptianmuseum.com /record.aspx?id=525 (590 words)

	Donkey Burger
		The quarries, at Mons Claudanius and Mons Porphyrites in the Eastern desert 300 miles (480km) south of modern Cairo, were worked throughout the first four centuries AD.
		Mons Porphyrites was the world’s only source of purple porphyry, and produced the stone for the sculpture of the Tetrarchs in St Mark’s Cathedral in Venice.
		The evidence for the diet comes from extremely well preserved rubbish dumps still containing the seeds, stones, shells and bones of meals consumed up to 2,000 years ago.
	www.yaroe.freeserve.co.uk /timesarticle.htm (283 words)

	Mons Porphyrites
		Mons Porphyrites (Porphyry Mountain) was an important Roman quarry complex near Gebel Abu Dukhan (Father of Smoke Mountain) in the heart of the Eastern Desert.
		For over three centuries, from 29 AD to 335 AD, an exquisite purple rock found nowhere else in the world called Imperial Porphyry was extracted for the glory of Roman emperors.
		Today excursions to Mons Porphyrites can be arranged from Hurghada, Safaga and Quseir.
	www.goredsea.com /en_travelguide-placestosee-attractionsdetails-doc3-historicalsites.aspx (215 words)

	Bir Umm Fawakhir: Insights into Ancient Egyptian Mining
		They are made of rough blocks of basalt, granite, or porphyritic granite with smooth upper surfaces that measure about 20 cm x 20 cm square, with a depression pecked in the middle (Figure 5).
		Almost all of the crushing stones were found in secondary context or loose on the surface, but one is still in situ at the mouth of the fourth mine inspected, with fist-sized and smaller chunks of quartz scattered around it.
		Rotary mills are considered to have been a late Ptolemaic or Roman introduction; the earlier millstones were flat or concave.
	www.tms.org /pubs/journals/JOM/9703/Meyer-9703.html (3167 words)

	CEO - Caucasus Environment Outlook
		In some places, in southern Imereti for instance, they wedge out low mountain forest landscapes and come close to foot-hill and hilly landscapes of the Colchida, from place to place breaking a zone of middle mountain beech-dark coniferous forests, joining immediately uphill-forests and even high mountain sub-alpine landscapes of the Colchida.
		The greater part of these landscapes is composed of porphyrites, Jurassic schist (in the North and Central Colchida) and palaeogenic volcanic sedimentary rocks (in the South Colchida).
		The erosive-denudiative relief is characterised by slopes of medium and high steepness, composed of various geological deposits: crystal and metamorphic rocks of Palaeozoic, Jurassic slates and porphyrites, palaeogenic and neogenic sandstones.
	www.earthwatch.unep.net /product/publication/CEO-for-Internet/CEO/annex3.htm (8333 words)

	Research: Marijke van der Veen: School of Archaeology & Ancient History, University of Leicester
		At Mons Porphyrites survey and excavations took place between 1994 and 1998, under the aegis of the Egyptian Exploration Society with permission of the Supreme Council for Antiquities, and directed by Prof.
		This project aims to explore new methods for recognizing patterns in these large data sets and identifying routes of entry, and to contrast these with those of carbonized seed assemblages.
		The data to be used for this project are the very substantial seed assemblages from Mons Claudianus, Mons Porphyrites, Quseir al-Qadim (all in Egypt), and Zinchecra (Fezzan, Libya), which contain both desiccated and carbonized material.
	www.le.ac.uk /ar/mvdv1/research.html (2150 words)

	Quality of Life in the Desert? High Living in Rome's Distant Quarries
		Gebel Dokhan/Mons Porphyrites (#12a): greenish-fl dacite porphyry, variety 'b' (from the East Quarry)
		Gebel Dokhan/Mons Porphyrites (#12a): fl andesite-dacite porphyry, variety 'c' (from the Northeast Quarry)
		The town is at the foot of Gabal Fatira (Mons Claudianus) in a small tributary of the Wadi Fatira Al-Beda (the white; another fork being called Al-Zarqa, the blue).
	www.freerepublic.com /focus/f-chat/1289111/posts (1636 words)

	Amazon.com: "Mons Porphyrites": Key Phrase page
		Key Phrases: Mons Claudianus, Eastern Desert, Mons Porphyrites, Ben Lazreg, Roman Egypt, Myos Hormos, New York, Nile Valley, North Africa, Red Sea, Duncan Jones, Ann Arbor, Baths of Caracalla, Roman Gaul, Wadi Hammamat, Abu Zawal, Casette Tipo, Roman Africa, Roman Britain, Ste Croix, Theatre of Pompey, Bronze Age, Van Rengen, Wadi Semna, Well Figure
		justifying his position by noting the particular importance enjoyed by both Mons Claudianus and Mons Porphyrites during the reign of Trajan.77 He thus supposed that stone was transported to the Red Sea, shipped to Clysma and...
		Fruits, vegetables and herbs have been found at Roman Berenike, Mons Claudianus and Mons Porphyrites (all in Egypt), and at Aksum (Ethiopia) in deposits dating to the mid- late Aksumite Empire.
	amazon.com /phrase/Mons-Porphyrites (419 words)

	C:\HMPRO2\gifs\geoarc30.htm
		Basalt: fl, slightly porphyritic (phenocrysts up to 3 mm) [unnamed formation, Oligocene].
		The phenocrysts vary from white to pink in color and may be largely or entirely absent in some specimens.
		Variety 'c' is the lapis porphyrites niger ("fl porphyrites stone") of the Romans, and the porfido nero ("fl porphyry") of the Italian stonecutters.
	www.eeescience.utoledo.edu /Faculty/Harrell/Egypt/Quarries/Hardst_Quar.html (2353 words)

	Ancient Egypt: Stone vessels - the stone, the craftsmen, the tools, the vessels
		There were also fashions in ancient times which dictated which kinds of stone were used, though Egyptian sources are silent concerning such matters.
		Among the Romans the new-fangled Egyptian porphyrites seems to have made little impact:
		Porphyrites, which is another production of Egypt, is of a red colour: the kind that is mottled with white blotches is known as "leptospsephos." The quarries there are able to furnish blocks of any dimensions, however large.
	nefertiti.iwebland.com /trades/stone_vessels.htm (1585 words)

	Soma Bay : About Soma Bay - Day Excursions
		It offers stunning views of the mountains and the sea offers the chance to see a wide range of bird life.
		Mons Porphyrites (Mountain of Porphyry) was an extensive Roman mining operation of the pinkish-purple Porphyry, which was used in temples, baths, sarcophagi and statues.
		The emperor Hadrian erected the Temple of Serapis, and a stele discovered in 1823 indicates that there was a Christian church, probably financed by Flavius Julius.
	www.somabay.com /pages/about/excursions.html (417 words)

	SignOnSanDiego.com > News > Science/Health -- Skilled Roman workers lived well -scientist
		Her research is based on the first excavations at two of ancient Rome's key quarries deep in the desert south of Cairo.
		The quarry complex at Mons Claudianus, 300 miles south of Cairo and 75 miles east of the Nile, supplied the stone for the portico of the Parthenon, among other buildings, while purple stone from the adjacent Mons Porphyrites was used for statues.
		Purple was the imperial color kept exclusively for the use of nobility, making the Porphyrite stone highly prized.
	www.signonsandiego.com /news/science/20020909-0915-science-romans.html (500 words)

	Mons Porphyrites - Suchergebnis zu Mons Porphyrites - Definition zu Mons Porphyrites - Deutsches ...
		Mons Porphyrites - Suchergebnis zu Mons Porphyrites - Definition zu Mons Porphyrites - Deutsches Bedeutungswörterbuch - www.bedeutungswoerterbuch.de
		Die Römisches Reich nannten das Material lapis porphyrites (Purpurstein); in Italien wird es porfido rosso Egiziano oder porfido rosso antico genannt.
		Dort findet sich neben einer Übersicht der Autoren die Möglichkeit, den Original-Text des Artikels Mons Porphyrites zu editieren.
	www.bedeutungswoerterbuch.de /Mons_Porphyrites.html (1073 words)

	Общество с ограниченной ответственностью "ЕвроАСко" (Site not responding. Last check: )
		Weathered basalts, diabases, gabbro, pegmatites, porphyrites, amphibolites and tuffs.
		Medium and fine grained basalts, fine grained gabbros, fine grained granites, fine grained granodiorites, biotite gneisses, pyroxene gneisses, quartzose gneisses, consolidated jaspilites, fine grained diabases, quartzose diorites, siliceous limestones, soft pegmatites, siliceous consolidated sandstones, quartzitic porphyrys, fine grained porphyrys, ferrous horn stones, consolidated fine grained syenites, nephelinic syenites, siliceous jasper-like shales.
		Quartzose albytophyrys, compact andesites and basalts, compact diabases and gabbros, coarse and medium grained granits, quartsites, quartzose sandstones, consolidated porphyrites and horn stones, silicified skarns, jasper.
	euroasco.boxmail.biz /cgi-bin/guide.pl?action=article&id_razdel=50577&id_article=67459 (290 words)

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