The ore mineral assemblages in the epithermal goldsilver deposits from the southwestern hokkaido such as kobetsuzawa, shin otoyo, suttsu, chitose, teine, date, koryu and toya mines are examined. The western thrace displays a diversity of epithermal gold deposits related to magmatic hydrothermal systems developed during the tertiary. The ore deposits of the district have many features typical of lowsulfidation or adulariasericite. The high sulfidation epithermal deposits possess a close connection with the porphyry copper deposits sillitoe, 2002. Epithermal deposits in the virginia city area of storey, washoe and lyon counties, nevada, were major sources of silver and gold.
In these system, highly acidic fluids form advanced argillic lithocaps which overlies on porphyry system and may host subsequent highsulfidation mineralization which itself is due to higher ph, moderate to low salinity fluids. Epithermal mineralization and intermediate volcanism in the virginia city area, nevada 127 figure 1. The tumultuous political history as well as the lan. Lowgrade stratiform uranium mineralization was originally formed due to adsorption and reduction by organic matter, titanium oxides, iron hydroxides, pyrite and clay minerals within a volcanosedimentary sequence. The western carpathians extend for about 220 miles 350 km between the danube and some. Learn vocabulary, terms, and more with flashcards, games, and other study tools.
Below is a detailed overview of the major subdivisions and ranges of the carpathian mountains. Mineralogist crystal structure database handbook of mineralogy page pdf. Map of paleogeneearly miocene igneous rocks in the alpinecarpathian. May 27, 2016 by dmitry mickiewicz, translated and published on counterpunch and on new cold, friday, may 27, 2016. Henry nevada bureau of mines and geology178, university of nevada, reno nv 89557 donald. The mountain belt stretches from the low beskids range of the eastern carpathians along the border of poland with slovakia toward the moravian region of the czech republic and the austrian weinviertel. Carpathian mountains are being rapidly stripped of forest cover. The ukrainian insurgent army upa lived as guerrillas in the carpathians well into the 1950s, using the mountains as a stronghold from which to fire on the authorities the upa is a controversial entity because of its probable, but unquantified, role in the extermination of ukrainian jews during wwii.
Characteristics, distribution, and relationship to magmatism david a. Eastern carpathians 3aeastern carpathians, 3b southern carpathians and 3c western carpathians. Particle properties of hydrothermal ammoniumbearing illitesmectite. They contain economic concentrations from a precious metal such as gold and silver, and in some cases base metals such as copper, lead, iron ore and. Geochemistry and statistical analyses of epithermal veins at. The central western carpathians, sometimes referred as the slovakocarpathian system, are a zone bounded by the pieniny klippen belt from the north and the meliata belt from the south.
The pieniny klippen belt is a relatively thin but important dividing line separating the outer western carpathians from the internal zones of orogeny. The southwestern hokkaido mining district is well known for the occurrence of many epithermal ore deposits ofneogene tertiary period. Numerous sbau mineralization occurrences and deposits containing goldbearing sulphides are described from an area of the tatric unit in western carpathians e. Poller, 2000, and in situ cameca 1270 and shrimp ion microprobe upb dating with ree and trace element analyses by ion microprobe, and panchromatic and monochromatic cl by scanning electron microscope. Media in category western carpathians the following 2 files are in this category, out of 2 total. A major part of the western and northeastern outer carpathians in poland, ukraine and slovakia is traditionally called beskids. Carpathians a mountain range in central europe that extends from slovakia and southern poland southeastward through western ukraine to. The western carpathians have been formed since the late jurassic plasienka et al. Inner carpathians, containing the inner western carpathians, inner eastern carpathians, and all the remaining carpathians. So far it includes western iberia at the border of spain and portugal, the central apennines in italy, the danube delta and the southern carpathians in romania, the eastern carpathians a in the triangle where poland, slovakia and ukraine meet, and the velebit mountain in croatia. The carpathians are a subsystem of a bigger alpshimalaya system that stretches from the western europe all the way to southern asia, and are further divided into. Zemaadjustments in channel morphology due to landuse changes and check dam installation in mountain torrents of calabria southern italy earth. Miocene and early pliocene epithermal goldsilver deposits in the northern great basin, western united states.
Miocene and early pliocene epithermal goldsilver deposits in. Geochemistry of skarn and porphyry deposits in relation to. But radiocarbon measurements of two cave bear bones excavated just below the footprints now indicate that homo sapiens made these tracks around 36,500 years ago, say anthropologist david webb of kutztown. Usgs scientific investigations report 20105090k, text. Pdf fluid evolution in the baia mare epithermal goldpolymetallic. The inner carpathians and the tisza unit are partly covered by strata filling the pbs. All structured data from the file and property namespaces is available under the creative commons cc0 license. Carpathians definition of carpathians by the free dictionary. Check dams decrease the channel complexity of intermediate.
Particle properties of hydrothermal ammoniumbearing. The au mineralization occurs as subhorizontal veins at the base of precaldera andesites, close to the roof of a subvolcanic granodiorite intrusion. The mineralization age decreases from north to south and east to west and. Mineralization is hosted by amphibolites, graphitic schists and black shales. The carpathians represent the eastern extension of the european alps figure 1, but unlike the wellknown classical alps of western europe, the carpathians of central and eastern europe remain less known and are even somewhat mysterious to the outside world. The baia mare district is located in the eastern part of. Original paper geology and reos molybdenite geochronology of. Epithermal mineralization and ore controls of the shasta auag deposit, toodoggone district, british columbia, canada article pdf available in mineralium deposita 321. The central zone of the large miocene stiavnica stratovolcano in the western carpathians hosts epithermal au mineralization of intermediatesulfidation type, located at deep levels of the historic rozalia basemetal mine at banska hodrusa. Epithermal environments and styles of mineralization. The most important uranium mineralization types in the western carpathians occur in the rocks of permian age. Pdf particle properties of hydrothermal ammoniumbearing.
Mclemore new mexico bureau of geology and mineral resources, new mexico institute of mining and technology, socorro, new mexico, 87801, usa abstract. Ammonium was detected both by chemical analysis and by fourier transform. Geological survey, mail stop 901, 345 middlefield road, menlo park, california 94025 abstract. The carpathians by janet frame i always feel a bit dumb when i read janet frame. Aug 03, 2015 in the 1960s, about 400 footprints were discovered in a ciurizbuc cave located in the western carpathians of transylvania, romania. Highest among them are the tatras gerlachovsky stit, 8,711 feet, exhibiting a typical highmountain glacial relief with icescoured cirque lakes and waterfalls. Heat and fluids are released from high level intrusions and channeled up by fault zones and dilational structures structural control of the mineralization. Epithermal article about epithermal by the free dictionary. Ore mineralogy and formation condition of epithermal gold. Although carpathian has attempted to identify important factors that could cause actual actions, events or results to differ. The central western carpathians consist of a series of isolated mountain ranges separated by structural depressions.
Magnesian wolframite from hydrothermal quartz veins in the rochovce granite exocontact, ochtina, western carpathians, slovakia. Carpathians mountains the carpathian mountains are the eastern wing of the great central mountain system of europe, curving 1500 km 900 miles along the borders of austria, the czech republic, slovakia, poland, ukraine, romania, serbia and montenegro and northern hungary. Carpathian mountains are being rapidly stripped of forest. Exploring the prolific mineral belts of the carpathian arc region. Pdf epithermal mineralization and ore controls of the. Carpathian mountains simple english wikipedia, the free. Journal of geochemical exploration, 36 1990 445474 445 elsevier science publishers b. Map of miocene alteration and mineralization in the virginia city region, nevada. Eastern carpathians article about eastern carpathians by. Folded, young mountains of medium elevation, stretching in an arc about 1,500 km long with a chord of almost 500 km from the city of bratislava in the northwest to the iron gate on the danube river in the southeast and covering an area of about 200,000 sq km. New minerals and paragenetic mineral assemblages in the tatric unit were described, some of which are also first finds in the western carpathians. Pdf magnesian wolframite from hydrothermal quartz veins in. History of the carpathians lonely planet travel information. Divisions of the carpathians are categorization of the carpathian mountains system.
Apr, 2002 the baia mare district romania represents a complex segment of the neogenequaternary, subductionrelated, volcanic chain of the carpathians. Subduction occurred from the northnortheast in the western carpathians and from. Genetic model of the epithermal mineralization in the banska stiavnicahodrusa ore district western carpathians, slovakia. Carpathians synonyms, carpathians pronunciation, carpathians translation, english dictionary definition of carpathians. Files are available under licenses specified on their description page. Remarkably, these volcanic eruptions occurred along a westeast. Central western carpathians mountain range, europe britannica. Pdf genetic model of the epithermal mineralization in the banska. Unusual new type of ore mineralization for tatric unit was found in the str.
Epithermal mineralization and intermediate volcanism in the. Mo and epithermal au mineralization, which is more common in the south. Crustal and upper mantle structure of the western carpathians. The western carpathians are a mountain range and geomorphological province that forms the western part of the carpathian mountains. One of the classifications most frequently used and based on geomorphological and geological criteria is that of the polish geographer kondracki 1978, who distinguishes the following main groups. Fluid evolution in the baia mare epithermal goldpolymetallic. If the address matches an existing account you will receive an email with instructions to reset your password.
Epithermal mineralization and intermediate volcanism in the virginia city area, nevada stephen. I feel like i am missing the main messageas though im really only scratching the surface and missing out on all the layers underneath of rich and complex meaning. Balkan mountainswestern romania, serbia, bulgaria, and western turkey. Geochemistry and statistical analyses of epithermal veins at the carlisle and center mines, steeple rock district, new mexico, usa virginia t. Epithermal mineralization and intermediate volcanism in. Carpathians is a hungarian private torrent tracker for 0day general. Critically the intersections confirm the continuation of highgrade epithermal mineralization 100m along strike from drill hole odd001, which intersected 43.
Unlike the other divisions of the carpathians, they do not form a continuous range but rather a cluster of massifs around a northsouth axis. In this province, the calcalkaline volcanism and associated mineralization are closely related to a major strikeslip fault and an underlying pluton. Miocene and early pliocene epithermal goldsilver deposits. Volcanism of the carpathianpannonian region, europe.