Geometry.Net - Philosophers: Porphyry

Porphyry Malchus Of Tyre, Phoenicia, Mathematician
porphyry Malchus of Tyre (223 309 AD) was born in Tyre and studied in Athens, before joining the Neoplatonic group of Plotinus in Rome were he studied
http://phoenicia.org/porphyry.html

Extractions: Porphyry Malchus of Tyre (223 - 309 AD) was born in Tyre and studied in Athens, before joining the Neoplatonic group of Plotinus in Rome were he studied philosophy. Porphyry was a man of great learning and was interested in and had great talent for historical and philological criticism. He had a passion to uproot false teachings in order to ennoble people and turn them to the Good. He declared the salvation of the soul as the ultimate purpose of philosophy. Porphyry's father was called Malkhos or Malchus, which means 'king'. Both Porphyry's parents were Phoenician and he would only get the nickname Porphyry later in his life as we shall explain below. Porphyry was named after his father so for many years he was known as Malchus. According to Gillian Clark's book Porphyry. On Abstinence from Killing Animals
CATHOLIC ENCYCLOPEDIA: Neo-Platonism
His works, consisting of fiftyfour treatises, were edited by porphyry in . In his expository works on the philosophy of Plotinus, porphyry lays great
http://www.newadvent.org/cathen/10742b.htm

Extractions: Home Encyclopedia Summa Fathers ... N > Neo-Platonism A system of idealistic , spiritualistic philosophy , tending towards mysticism , which flourished in the pagan world of Greece and Rome during the first centuries of the Christian era. It is of interest and importance, not merely because it is the last attempt of Greek thought to rehabilitate itself and restore its exhausted vitality by recourse to Oriental religious ideas , but also because it definitely entered the service of pagan polytheism and was used as a weapon against Christianity . It derives its name from the fact that its first representatives drew their inspiration from Plato's doctrines, although it is well known that many of the treatises on which they relied are not genuine works of Plato . It originated in Egypt , a circumstance which would, of itself, indicate that while the system was a characteristic product of the Hellenistic spirit, it was largely influenced by the religious ideals and mystic tendencies of Oriental thought. To understand the neo-Platonic system in itself, as well as to appreciate the attitude of
Imperial Porphyry : No Sheep!
porphyry Basin (leemarie of Flickr) Originally I became intrigued by porphyry by my friend Dee. On a number of occasions Dee has regaled us with tales from
http://nosheep.net/story/imperial-porphyry/

Extractions: No Sheep! February 27, 2006 Originally I became intrigued by porphyry by my friend Dee First of all, I needed to know how to pronounce porphyry. After reading the brief description on Answers.Com, it was clear to me that there were multiple types of this igneous rock , not all of it particularly rare. So what makes the stuff they have in Rome so special? From Via Porphyrites in Saudi Aramco World What makes imperial porphyry so precious and rare is that it is found at only one place on earth, atop a 1600-meter (mile-high) mountain in the eastern province of Egypt. The Romans named the site Mons Porphyrites, or Porphyry Mountain, and the Arabs today call it Jabal Abu Dukhan, or Smoky Mountain. Rome was not the only city fascinated by this rare and beautiful stone. Constantine the Great celebrated the founding of Constantinople by erecting a 30 meter pillar built from seven porphyry drums. This pillar still stands today in the modern city of Istanbul. There are also columns of porphyry in the beautiful Hagia Sophia . In later history, porphyry remnants found their way to Germany and later England.
Porphyry Copper Deposits Of The World: Database, Maps, And Preliminary Analysis
This publication contains a computer file of information on porphyry copper deposits around the world. It also presents new grade and tonnage models for
http://wrgis.wr.usgs.gov/open-file/of02-268/

Extractions: This publication contains a computer file of information on porphyry copper deposits around the world. It also presents new grade and tonnage models for three subtypes of porphyry copper deposits, maps showing locations and general ages of these deposits, and a preliminary analysis with a number of figures summarizing many of the properties of these porphyry-style deposits. These summaries can be considered a new, quantified, form of most parts of descriptive models such as those in Cox and Singer (1986). The value of this information and analyses depends critically on the consistent manner of data gathering. For this reason, we first discuss the rules used in this compilation. Next the fields of the data file are considered. Finally, we discuss some of the things that can be done with the data.
Porphyry (Petrology) - LoveToKnow 1911
porphyry (Gr. iropcApeos, Lat. purpureus, purple), in petrology, a beautiful red volcanic rock which was much used by the Romans for ornamental purposes
http://www.1911encyclopedia.org/Porphyry_(Petrology)

Extractions: PORPHYRY (Gr. iropcApeos, Lat. purpureus, purple ), in ' petrology , a beautiful red volcanic rock which was much used by the Romans for ornamental purposes when cut and polished. The famous red porphyry ( porfido rosso antico ) came from Egypt , but its beauty and decorative value were first recognized by the Romans in the time of the emperor Claudius . It was obtained on the west coast of the Red Sea , where it forms a dike 80 or 90 ft. thick. For a long time the knowledge of its source was lost, but the original locality, marked by many ancient quarries, has been re-discovered at Jebel Dhokan, and the stone is again an article of commerce, In a dark red ground-mass it contains many small white or rose -red plagioclase felspars, black shining prisms of hornblende , and small plates of iron oxide . The red colour of the felspars and of the ground-mass is unusual in rocks of this group, and arises from the partial conversion of the plagioclase felspar into thulite and manganese epidote . These minerals also occur in thin veins crossing the rock. Many specimens show effects of crushing and in extreme cases this has produced brecciation. Another famous porphyry, hardly less beautiful, is the
Lighthouses At Lighthouse Depot ... Lighthouse Explorer Database ... Porphyry Po
Name porphyry Point Light. Feedback to the database manager. Nearest Town or City Thunder Bay, Ontario, Canada. Location Entrance to Black Bay,
http://www.lhdepot.com/database/uniquelighthouse.cfm?value=725
Porphyry, Greek Scholar Â Infoplease.com
Strabo, Plutarch, porphyry and the Transmission and Composition of Aristotle s Rhetorica Hunch (Rhetoric Society Quarterly)
http://www.infoplease.com/ce6/people/A0839743.html

Extractions: google_ad_client = 'pub-1894504138907931'; google_ad_width = 120; google_ad_height = 240; google_ad_format = '120x240_as'; google_ad_type = 'text'; google_ad_channel =''; google_color_border = ['336699','B4D0DC','DFF2FD','B0E0E6']; google_color_bg = ['FFFFFF','ECF8FF','DFF2FD','FFFFFF']; google_color_link = ['0000FF','0000CC','0000CC','000000']; google_color_url = ['008000','008000','008000','336699']; google_color_text = ['000000','6F6F6F','000000','333333']; Encyclopedia Porphyry key Plotinus . He later lectured in Rome on the philosophy of Plotinus and was the teacher of the Neoplatonist Iamblichus . He wrote lives of Pythagoras and of Plotinus and edited the Enneads of Plotinus. He wrote extensively against Christianity and on rhetorical and literary themes. His most influential work is the
GemRocks: Porphyry
C. porphyry simulant. Kikkaseki, stone/rock of chrysanthemum flower (height 36 cm), a metamorphic rock that contains radial clusters of carbonate
http://www.cst.cmich.edu/USERS/DIETR1RV/porphyry.htm

Extractions: B . Porphyry. Diverse porphyries from Egypt, Italy and Rumania fashioned as cabochons (greater axes - ca . 3.5 cm) . Smithsonian Institution collection. ( photo by L. Bolton C. Porphyry simulant. Kikkaseki , "stone/rock of chrysanthemum flower" (height - 36 cm), a metamorphic rock that contains radial clusters of carbonate crystals (dolomite, calcite or aragonite) from Gifu Prefecture, central Japan. ( DESCRIPTION: Porphyry is the term geologists apply to igneous rocks that consist of relatively large grains or crystals, called phenocrysts , surrounded by a finer grained material, usually called the groundmass . Porphyries may be of just about any composition known for igneous rocks, and the groundmasses may be phaneritic, aphanitic, or even glass.
Porphyry Nodes (Planar Chaos)
porphyry Nodes. Enchantment, W (1) At the beginning of your upkeep, destroy the creature When there are no creatures in play, sacrifice porphyry Nodes.1
http://magiccards.info/pc/en/28.html

Extractions: Illus. Alan Pollack Crystal Keep Rulings Summaries Printings (9) In other languages Format Legality Buy for in the Bazaar of Wonders online shop (36 available)! Rules Questions MOTL Price Lists Print Proxies: HTML link to this card BBCode link to this card This card might have received a new text in the Oracle card reference.
Porphyry, On Abstinence From Animal Food, Continued
porphyry. BOOK THREE. 1. In the two preceding books, O Firmus Castricius, we have demonstrated that animal food does not contribute either to temperance and
http://thriceholy.net/Texts/Porphyry2.html

Extractions: BOOK THREE cynanche 8. See, however, whether all the passions of the soul in brutes, are not similar to ours; for it is not the province of man alone to apprehend juices by the taste, colors by the sight, odors by the smell, sounds by the hearing, cold or heat, or other tangible objects, by the touch; but the senses of brutes are capable of the same perceptions. Nor are brutes deprived of sense because they are not men, as neither are we to be deprived of reason, because the Gods, if they possess it, are rational beings. With respect to the senses, however, other animals appear greatly to surpass us; for what man can see so acutely as a dragon? (for this is not the fabulous Lynceus). And hence the poets denominate 'to see' drakein 9. It must be demonstrated, therefore, that there is a rational power in animals, and that they are not deprived of prudence. And in the first place, indeed, each of them knows whether it is imbecile or strong, and, in consequence of this, it defends some parts of itself, but attacks with others. Thus the panther uses its teeth, the lion its nails and teeth, the horse its hoofs, the ox its horns, the cock its spurs, and the scorpion its sting; but the serpents in Egypt use their spittle (whence also they are called ptuades 17. Each of the ancients, likewise, who had been prosperously nursed by animals, boasted more of this than of their parents and educators. Thus, one boasted of having been nursed by a she-wolf, another by a hind, another by a she-goat, another by a bee. But Semiramis gloried in having been brought up by doves, Cyrus in being nursed by a dog, and a Thracian in having a swan for his nurse, who likewise bore the name of his nurse. Hence also, the Gods obtained their surnames, as Bacchus that of
Harvard University Press: Plotinus, I, Porphyry On The Life Of Plotinus. Ennead
Plotinus, I, porphyry on the Life of Plotinus. Ennead 1 by Plotinus, published by Harvard University Press.
http://www.hup.harvard.edu/catalog/L440.html

Extractions: Plotinus (204/5-270 CE ) was the first and greatest of Neoplatonic philosophers. His writings were edited by his disciple Porphyry, who published them many years after his master's death in six sets of nine treatises each (the Enneads). Plotinus regarded Plato as his master, and his own philosophy is a profoundly original development of the Platonism of the first two centuries of the Christian era and the closely related thought of the Neopythagoreans, with some influences from Aristotle and his followers and the Stoics, whose writings he knew well but used critically. He is a unique combination of mystic and Hellenic rationalist. His thought dominated later Greek philosophy and influenced both Christians and Moslems, and is still alive today because of its union of rationality and intense religious experience. In his acclaimed edition of Plotinus, Armstrong provides excellent introductions to each treatise. His invaluable notes explain obscure passages and give reference to parallels in Plotinus and others. Plotinus, II, Ennead 2
Definition: Porphyry From Online Medical Dictionary
zoology porphyry shell, a handsome marine gastropod shell (Oliva porphyria), having a dark red or brown polished surface, marked with light spots,
http://cancerweb.ncl.ac.uk/cgi-bin/omd?porphyry
Giant Porphyry-Related Metal Camps Of The WorldA Databas
porphyryrelated metal deposits are large-tonnage, generally low-grade, hydrothermal deposits related to igneous intrusions emplaced at high crustal levels
http://geopubs.wr.usgs.gov/open-file/of99-556/

Extractions: Open-File Report 99-556, Online Version 1.0 Giant Porphyry-Related Metal Camps of the By Felix E. Mutschler , Steve Ludington , and Arthur A. Bookstrom INTRODUCTION Porphyry-related metal deposits are large-tonnage, generally low-grade, hydrothermal deposits related to igneous intrusions emplaced at high crustal levels. Mineralization may be confined to pluton-hosted disseminations, stockworks, vein sets, and breccias and (or) occur in skarns, replacements, veins, and disseminated deposits peripheral to the inferred source pluton. Coeval epithermal precious metal-dominated deposits may occur above, or be telescoped onto, porphyry systems. This spectrum of deposit types includes many of the world's largest accumulations of Cu, Mo, Au, Ag, Sn, and W. As such the deposits represent critical economic resources and important exploration targets (Gilmour et al., 1995; Kirkham and Sinclair, 1996; Singer, 1995). To prospect efficiently for undiscovered mineral deposits, or to speculate about future metal supply, it is useful to define the size, distribution, and geologic characteristics of known deposits. It is to that end that we have compiled this database, the release of which is part of a larger effort to characterize the world's largest and most important porphyry-related deposits. We hope that this compilation can be of aid to researchers, explorationists, and students alike. We also recognize that any compilation effort is, by its very nature, incomplete, as well as out-of-date as soon as it is released. Thus, we welcome any corrections or updates to the data presented here and request that you direct any communications to Felix Mutschler at 509-359-2854 or Steve Ludington at 650-329-5371. E-mail addresses are linked below.
Porphyry Disc On Flickr - Photo Sharing!
Flickr is almost certainly the best online photo management and sharing application in the world. Show off your favorite photos to the world, securely and
http://www.flickr.com/photos/qxz/2211673484/

Extractions: YAHOO.util.Event.addListener(window, 'load', F._window_onload); YAHOO.util.Event.addListener(window, 'resize', F._window_onresize); YAHOO.util.Event.addListener(window, 'blur', F._window_onblur); YAHOO.util.Event.addListener(window, 'focus', F._window_onfocus); YAHOO.util.Event.addListener(window, 'unload', F._window_onunload); You aren't signed in Sign In Help To take full advantage of Flickr, you should use a JavaScript-enabled browser and F.decorate(_ge('button_bar'), F._photo_button_bar).bar_go_go_go(2211673484, 0); F.decorate(_ge('photo_notes'), F._photo_notes).notes_go_go_go(2211673484, 'http://farm3.static.flickr.com/2296/2211673484_25d787d97b_t.jpg', '3.1444'); View QXZ's map Taken in (See more photos here Porphyry marks the spot on which Charlemagne was crowned "Imperator Romanorum" by Pope Leo III on Christmas Day, 800 AD. Later on, Charlemagne changed his title to "Imperator Romanum gubernans Imperium" ("Emperor ruling the Roman Empire") so as not to cheese off the Byzantine Emperor.
Porphyry Copper Salinities
During my investigations of a porphyry copper deposit in Papua New Guinea I have found three types of fluid inclusions highsalinity multiphase (halite,
http://www.geology.wisc.edu/flincs/fi/disc/salinity.html

Extractions: This discussion took place during September, 1999 Ulf Huenken Larry Meinert Bob Bodnar Jacques Touret ... Ioan Pintea Dear all: Cheers Ulf Dr. Ulf Huenken Mineralogisches Institut der Universitaet Am Hubland 97074 Wuerzburg Germany Tel.: ++49-(0)931-888-5432 Fax: ++49-(0)931-888-4620 Email: ulf.huenken@mail.uni-wuerzburg.de Larry Meinert meinert@wsu.edu Dear Dr. Huenken and others who may be interested: You should also be aware that it is unwise to accept the common model of decreasing salinity and temperature with time for the porphyry copper deposits. The actual temperature-salinity trends depend on many factors, one of the most important of which is the pressure (depth) of formation. The old model of dilution and cooling of magmatic fluids by low T low salinity meteoric fluids is now known to be a gross over-simplication of the actual process. I suggest you look at the following references (especially Bodnar, 1994): Bodnar, R.J. and R.E. Beane (1980) Temporal and spatial variations in hydrothermal fluid characteristics during vein filling in preore cover overlying deeply buried porphyry copper-type mineralization at Red Mountain, Arizona. Economic Geology, 75, 876-893. Roedder, E. and R.J. Bodnar (1980) Geologic pressure determinations from fluid inclusion studies. Annual Review of Earth and Planetary Sciences, 8, 263-301.
The Ecole Glossary
Short introduction to his life and works, from the Ecole Glossary.
http://ecole.evansville.edu/glossary/porphyry.html

Extractions: Porphyry Porphyry ( CE) was a major contributor to the spread of Neoplatonism, particularly within the Roman Empire. In , he moved to Rome and became a close friend and follower of Plotinus . He is best known for organizing and editing the lectures and writings of Plotinus, producing the collection of texts we know as The Enneads , and for writing The Life of Plotinus , a work that provides many clues to interpretting Plotinus' thought. In addition, Porphyry also made his own philosophical contributions: 1) he developed the idea that the One exists prior to and independently of Being or Intellect and 2) established the identity of Intellect and Thought with its objects. Porphyry argued that everything that did not seem to be the One was in fact an appearance of the One resulting from our inability to think the One as it truly is. Porphyry wrote many philosophical works, including Against The Christians , a critical work attacking Christianity, Introduction to the Categories , a valued commentary on Aristotle's Categories , and Aids to the Study of the Intelligibles , a basic summary of Neoplatonism.
Porphyry Copper Deposit Life Cycles - A Regional Approach
Studies of porphyry copper deposits, their regional geologic and geochemical context, and economic and production history will have a significant positive
http://minerals.usgs.gov/west/projects/porphcu.htm

Extractions: USGS Home Contact USGS Search USGS Western Mineral Resources Home Products Projects Offices ... Minerals Program Project status is complete. Please check the project list for currently active projects Staff Tasks Arizona and adjacent areas of New Mexico and Sonora account for about 10% of world copper production. Within this copper-rich province, issues of urbanization, habitat preservation, and mining are becoming increasingly important. Studies of porphyry copper deposits, their regional geologic and geochemical context, and economic and production history will have a significant positive impact on land-use planning, mineral development, and environmental issues. With a few notable exceptions (e.g. Titley, 2001; Lang and Titley, 1998), past studies of porphyry copper systems in Arizona and adjacent parts of New Mexico and Sonora have focused on individual deposits or districts at map and temporal scales appropriate only to the deposit in question. In this project, we propose to work simultaneously at three principal map scales: province, regions (clusters of mining districts), and deposits, with an emphasis on the provincial and regional scales. The project team will work simultaneously at three scales of investigation: province scale; regional scale (focus starting in the Ray-Globe-Miami-Superior area, but branching out over time to the Sierrita-Tucson Basin and Safford-Morenci areas); and deposit scale (Ray at first and then shifting to Dos Pobres and possibly other deposits). The methodologies are organized into five tasks that cut across the scales of investigation and sites: (1) Mesozoic and Cenozoic crustal framework, (2) regional distribution of chemical elements, (3) characteristics and evolution of hydrothermal systems, (4) dispersion and concentration of materials from porphyry copper and related deposits in the region, and (5) historic lifecycle analysis of porphyry copper exploration and mining.
High Sulfidation And Low Sulfidation Porphyry Copper/Skarn Systems: Characterist
Among the most studied magma hydrothermal systems are those linked to felsic magmatism, whose products extend from plutonic porphyry-Cu deposits to
http://pangea.stanford.edu/research/ODEX/marco-hilosulf.html

Extractions: Stanford, California, U.S.A. Sulfidation State. McKinstry (1959, 1963) and Barton (1970) applied the terms "sulfur content" and "sulfidation state", respectively, to denote the relative values of the chemical potential of sulfur implied by sulfide mineral assemblages in ore deposits. Both authors noted the general tendancy for sulfidation state to increase as unbuffered hydrothermal solutions evolve from high to low temperatures in base- metal veins associated with felsic igneous rocks. The concept of sulfidation state was put on a firm theoretical and experimental base by Skinner and Barton (1967, 1979) and applied to base-metal veins by Meyer and Hemley (1967). The sulfidation state of hydrothermal fluids can be classified on a continuous scale on the basis of key sulfidation reactions, as defined in Table 1 below (based on Skinner and Barton, 1979). In
Porphyry - Research And Read Books, Journals, Articles At Questia
Research porphyry at the Questia.com online library.
http://www.questia.com/library/philosophy/porphyry.jsp
Session: Sources Of Porphyry Copper Deposits: Magmas, Metals, And Fluids II
1387, 945 AM, ISOTOPIC EVIDENCE FOR THE MULTIPLE SOURCES OF LEAD IN porphyry CU-MO AND BASE METAL LODE ORES AT BUTTE, MONTANA DILLES, John H. and KENT,
http://gsa.confex.com/gsa/2005AM/finalprogram/session_16530.htm

Extractions: 2005 Salt Lake City Annual Meeting (October 1619, 2005) Session No. 138 Tuesday, 18 October 2005 8:00 AM-12:00 PM, Salt Palace Convention Center: Ballroom H John H. Dilles and Jeffrey D. Keith, Presiding Paper # Start Time 8:00 AM PORPHYRY CU-AU MINERALIZATION IN THE ERTSBERG INTRUSION, WEST PAPUA, INDONESIA: STYLE, TIMING, AND SOURCES OF HYDROTHERMAL FLUIDS GIBBINS, Stacie L. , Geoscience, University of Arizona, Gould-Simpson Building, Tucson, AZ 85721, sgibbins@geo.arizona.edu, TITLEY, Spencer, and FRIEHAUF, Kurt, Physical Sciences, Kutztown University, Kutztown, PA 19530 8:15 AM THE RELATIONSHIP BETWEEN INTRUSION AND ALTERATION AT THE CHUQUICAMATA PORPHYRY COPPER SYSTEM, CHILE ARNOTT, Alexandra M. and ZENTILLI, Marcos, Department of Earth Sciences, Dalhousie University, Halifax, NS B3H 3J5, Canada, aarnott@dal.ca 8:30 AM GEOCHRONOLOGY AND GEOCHEMISTRY OF THE HILLTOP, LEWIS, AND BULLION MINING DISTRICTS, BATTLE MOUNTAIN-EUREKA TREND, NEVADA KELSON, Chris R. , Department of Geology, University of Georgia, Athens, GA 30602, ckelson@uga.edu, CROWE, Douglas, Department of Geology, Univ of Georgia, Athens, GA 30602, and STEIN, Holly, AIRIE Program, Department of Geosciences, Colorado State Univ, Fort Collins, CO 80523-1482

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