After 25 years of mining activity, the lowcost mine still has another 25 years of life remaining. Partial least squaresdiscriminant analysis on hydrothermal magnetite compositions from porphyry cu, iron oxide coppergold iocg, kirunatype iron oxideapatite ioa, and skarn deposits around the world identify important discriminant elements for these deposit types. Trace element composition of igneous and hydrothermal. The 2020 drill campaign is now underway, with the first phase aimed at continuing to expand the original footprint of the scadding deposit, and is off to a strong start having intersected 735. Jul 09, 2012 the companys portfolio of twentytwo granted exploration permits covers an area of 963 square kilometers in northern sweden that is prospective for porphyry coppergold and ironoxidecopper. There are generic models to explain the geophysics of iocgs. Iocg deposits definition, nature, tectonic setting and magmatic hydrothermal origin extreme confusion in literature as defined some have no significant cu nor au vary over several orders of magnitude what are iron oxide coppergold deposits. Although significant exploration projects have been conducted and are currently under way in search of iron oxidecoppergold iocg deposits in the cobequidchedabucto fault zone ccfz of northern mainland nova scotia. The visit will also give you a stronger sense of the journalists special interests and needs. Aug 07, 20 australias other iocg deposits, ernest henry and mount elliot, are located some 1900km north in the cloncurry district of northern queensland. Metasedimentary cobaltcoppergold deposits such as blackbird, idaho, iron oxidecoppergold deposits, and the fiveelement vein deposits such as cobalt, ontario contain different amounts of. An integrated genetic model for the kangdian iocg deposits. Barton center for mineral resources, department of geosciences, university of arizona, tucson, arizona 85721, u. The iocg deposits in kangdian are hosted in the late paleoproterozoic 1.
Scadding deposit and larger spj property indicates that it could host a goldrich ironoxidecoppergold deposit and that significant gold structures may have been missed by previous operators drilling campaigns 20092011. Bhps olympic dam is an iocg deposit located on the gawler craton in south australia figure 7. Definition iron oxide coppergold iocg deposits encompass a wide spectrum of sulphidedeficient lowti magnetite andor hematite ore bodies of hydrothermal origin where breccias, veins, disseminations and massive lenses with polymetallic enrichments cu, au, ag, u, ree, bi, co, nb, p are genet ically associated with, but either proximal or distal to large scale continental, a to itype. Since the discovery of the supergiant olympic dam deposit in australia in 1975, iron oxide coppergold iocg deposits have become the largest producer of uranium hitzman and valenta, 2005, skirrow, 2011, the third producer of copper sillitoe, 2012 and significant producer of gold kerrich et al. This report and the recommendations included herein are based on the following data. Have you ever done work that required you to be certified for hazardous waste. This model is globally applicable and explains the observed temporal and spatial relationship between magmatism and formation of ioa and iocg deposits. A genetic model that links magma, ioa and iocg deposits. Imu inertial measurement unit iocg iron oxide copper gold khz kilohertz.
The prominent hill iron oxidecoppergold iocg deposit, located in the gawler craton of south australia, contains ca. During the latter part of the phanerozoic, numerous iron oxidecuau iocg systems formed in parts of the cordillera of north and south america. Gold in iron oxide coppergold deposits sciencedirect. The olympic cuau province also hosts a range of other iron oxidecoppergold iocg deposits including. Iocg deposits in the mt isa region and therefore have. Such structures can be huge and rich in a number of metals. What we heard was that being connected was a key factor to staying engaged and being successful. The orehosting strata contain basal conglomerates and. Petroleum news contributing writer xploration and production independent pioneer natural resources, which along with a lot of other gulf of mexico producers suffered at least some effects from two major hurricanes this year, has dangled a carrot in front of wouldbe buyers of its oil and gas properties in the deepwater gulf. Pyrite at ernest henry is strongly zoned, with arsenic, nickel and cobalt all ranging from a few hundred ppm to a few wt. Would you like to have someone with whom you may discuss your work and career.
The geologic histroy of the iocg deposits in southwestern. Iocg deposits in the research area, such as the lala and dahongshan deposits, formed in 1. After that, most of your contact can be by mail, phone, and fax. A personal visit to a writer, editor, or producer is helpful initially because it enables you both to put a face to a name and voice. While known copper deposits in the project area are veintype, trace element results from 2005 rock sampling suggest that ironoxide copper gold iocg mineralization, similar to the polymetallic olympic dam deposit in australia and the nico deposit in the northwest territories, may be present. Alteration vectoring to iocgu deposits in frontier. Pdf iron oxide coppergold iocg mineralization at the. Iocg and porphyrycu deposits in northern finland and sweden. Iron oxidecoppergold iocg deposits in south australia and queensland, australia.
Iocg mineralisation and alteration roger skirrow gawler project leader iocg workshop adelaide, 24 february 2006. The cloncurry district mineral system an iocg exploration. They commonly form high rounded hills and ridges in modern basins, and locally form prominent bluffs. That feedback led to mindtap math foundations including. View and download ingco hpwr28001 user manual online. These iocgu deposits tend to be hosted in modern or ancestral continental margins, as illustrated by the andean iocg deposits and current interpretation for the tectonic setting of the olympic dam deposit sillitoe. The contained mineralisation is dominated by iron oxide and fluorite and is accompanied by a diverse polymetallic association, with anomalous fluorite, copper, gold, barite, uranium and lree. Geophysical vectors to iocg mineralisation in the gawler. Yes no if no, skip and proceed to question 2 if yes, please list the most recent jobs that required you be certified in hazardous waste. The cloncurry district mineral system is complex, variable and extensively studied and we still havent scratched the surface. Iron oxidecoppergold potential of the southern arunta region. Replaces olympic dam cuauu, cox, 1986b description iron oxide cuau deposits are veins and brecciahosted bodies of hematite.
Trace element composition of iron oxides from iocg and ioa. Advances in the understanding of iocg deposits, volume 3, 2010, t. A case study from the carrapateena iocg deposit, south australia e xplorers are moving to increase the discovery space by exploring under cover and to greater depths, e. Ip and resistivity surveys on the snow zone and ice lake zone within the beaton group mineral claims afton mines area kamloops mining division, british columbia introduction and general remarks this report discusses survey procedure, compilation of data, interpretation methods, and the. An exploration strategy for iocg mineral systems under deep cover. A case study and implications for exploration marquardt, m. Introduction targeting magnetic anomalies for iocg mineralisation is common. If you do find yourself needing a specific resource, the quickest way to access it is by going to the resources library from the upper right hand corner of the dashboard. When mindtap math foundations was being developed, we spoke with students just like you to better understand the things they felt were important. The deposit is hosted by brecciated sedimentary rocks and structurally underlying lavas of the ca. Iron oxide coppergold deposits iocg comprise a type of miner alization formed in the geological time scale, from the archean to phanerozoic with most important occurrences in australia and south. Porphyry is a textural term for an igneous rock consisting of largegrained crystals such as feldspar or quartz dispersed in a finegrained silicate rich, generally aphanitic matrix or groundmass. These ore bodies range from around 10 million tonnes of contained ore, to 4,000 million tonnes or more, and have a grade of between 0. The occurrence of large, massive iron oxide deposits throughout the bushveld complex, south africa, and its associated roofrocks is well known.
Rich accumulations of lead, zinc and silver are found in the ore minerals sphalerite zinc sulfide and galena lead sulfide deposited between thin layers of marine sand, silt and mud in sedimentary basins. The only economic iocg deposits discovered to date in the gawler craton have an association with hematite. Iocg workshop, feb 2006 geoscience australia outline 1. Eurasian minerals provides update on exploration programs in. The youngest and, therefore, most readily understandable iocg belt is located in the coastal cordillera of northern chile and southern peru, where it is part of a volcanoplutonic arc of jurassic. Iocg iron oxide copper gold ore deposits goes with porphyries as they are also loosely associated with a large felsic intrusions and form at moderate depths, unlike the dominantly tertiary porphyries iocg s tend to be much older and are generally protoizoic in age from 1. Introduction iocgtype deposits have been widely described for the coastal cordillera of northern chile 1, where they appear to have a strong spatial and temporal. He also serves on the preferred in 1996 he received a masters degree in health finance and administration. Sedex sedimentary exhalative deposits are one of several types of sedimenthosted leadzinc deposits. Seg has experienced members in mining and exploration companies, government surveys, consultancies, and universities who will be happy to discuss your work and career and give you advice. Iron oxidecoppergold iocg deposits are characterized by abundant lowti iron oxide magnetite and hematite, pervasive hydrothermal alkali nacak alteration, and an extensional tectonic. Iron oxidecoppergold potential of the southern arunta region iron oxidecoppergold iocg deposits are a diverse family of mineral deposits unified by a number of common geological features, including the presence of abundant iron oxides, extensive hydrothermal alteration and strong structural controls williams et al. In addition to the standard glaucoma operations he also has a special interest in combined cataract and glaucoma surgery, drainage device surgery, and. Gillen, david 2010 a study of iocgrelated hydrothermal.
In mindtap math foundations, helpful resources are available whenever you need them. These deposits, not owned by the company, are provided to illustrate the potential size and grade of iocg and porphyry deposits in general. Iocg, geology, characteristics, world ocurrences, hydrothermal mineral assemblages. The countrys prolific atacama iocg belt is home to the worlds secondlargest such deposit, lundin minings tsx. During this field trip we will visit the iron and iron oxidecuau deposits straddling the na. Jul 12, 20 epithermal gold deposits are among the richest gold deposits in the world with some bonanza grade ore shoots containing more than gt gold, or in other words, a kilogram of gold for every tonne of rock mined. It was altius geologist roland butler who called his companys attention to the parallels between labradors central mineral belt. The 12 iocg deposits with 100 tonnes t resources are located in intracratonic settings within about 100 km of the margins of archean or paleoproterozoic cratons or other lithospheric boundaries, and formed 100 to 200 m. Macdonald mines grab samples support ironoxidecopper. Geological setting of one of the world famous silvergold deposits type is presented. These iocg u deposits tend to be hosted in modern or ancestral continental margins, as illustrated by the andean iocg deposits and current interpretation for the tectonic setting of the olympic dam deposit sillitoe, 2003.
A variety of thorite which contains p and other foreign elements mainly ree, ca. Physical and chemical characteristics of the ernest henry. The coppercorp mine, a past producer, along with several surface copper occurrences are located on the western portion of the property. Strong mineral endowment in a variety of commodities cu, au, pb, zn, ag, co, ree huge challenge for geologists with or without beards, and thats before we. When the resources icon is selected, a menu will appear on the left side of the screen. Alteration vectoring to iocgu deposits in frontier volcano. Iron oxidecoppergold iocg deposits, defined primarily by their elevated magnetite andor hematite contents, constitute a broad, illdefined clan related to a variety of tectonomagmatic settings. Iron oxidecoppergold iocg deposits of australia geology. Geological report on the coppercorp property of amerigo.
During the latter part of the phanerozoic, numerous iron oxide cuau iocg systems formed in parts of the cordillera of north and south america. The metamorphic reconstruction type ore and rich orebearing layer in lala and dahongshan deposits were formed in 1. Exploration on this property was optioned in 2010, with echelon. In its nongeologic, traditional use, the term porphyry refers to the purplered form of this stone. Iocg prospectivity modelling in namibia and zambia using. Seeing is believing odd fellows and rebekahs who wish to have. Pdf an exploration strategy for iocg mineral systems under. Descriptive and gradetonnage models and database for iron oxide cuau deposits by dennis p. Mentoring program seg society of economic geologists. Many diverse ore systems are classified together as iron oxide coppergold locg deposits based on an empirical definition arising primarily from geochemical features that do not specify tectonic setting, geologic environment, or sources of oreforming fluid, metals, or other ore components. Such pyrite compositions are not unusual relative to other iocg deposits or weakly mineralised iocg like magnetitematrix hydrothermal breccias in the eastern succession.
The iron oxide coppergold iocg group of deposits, initially defined following discovery of the giant olympic dam cuuau deposit, has progressively become tooembracing when associated deposits and potential end members or analogs are included. The magnetic anomalies of iocg deposits are widely variable. Macdonald mines is building a significant gold asset near sudbury. Olympic dam deposit in australia, ranks 1st in world uranium resources, 4 th in gold, and 4 in copper bhp billiton, 2006. Chile is the top jurisdiction in the world for iocg deposits. Regional geological setting of guanajuato silvergold. Their tectonic setting at formation was most likely anorogenic. Iocg prospectivity modelling in namibia and zambia using australian information katie peters kenex ltd, po box 416, eastbourne, wellington 5047, new zealand. This faq is an illustration of such activity and has been compiled to help research administrators navigate the complex landscape of cannabis and hemp research. Sep 17, 2003 iron oxidecoppergold iocg deposits, defined primarily by their elevated magnetite andor hematite contents, constitute a broad, illdefined clan related to a variety of tectonomagmatic settings. Unfortunately, the tonnage of ore in epithermal veins is typically small compared with other types of lower grade gold deposits.
The prominent hill deposit is a large iron oxide cuau iocg resource located in the olympic iocg province of south australia. Iron oxide copper gold ore deposits iocg are important and highly valuable concentrations of copper, gold and uranium ores hosted within iron oxide dominant gangue assemblages which share a common genetic origin. It is the fourth such iocg type being reported from india. Descriptive and gradetonnage models and database for iron. The style of mineralisation and the associated alteration exhibits many characteristics of iron oxidecoppergold iocg type deposits. Considering iocg u deposit generation in continental. Iocg deposits is, of course, also fundamental to their e. Cobaltstyles of deposits and the search for primary deposits. Iron oxidecoppergold iocg at thanewasna, maharashtra, india is a new genetic type of ore deposit, being reported from the western margin of bastar craton, based on integrated field, drilling, mineral chemistry and raman microprobe studies. The world famous olympic dam deposit in south australia is the bestknown example of this kind of geology. Hydrothermal iron oxide coppergold and related deposits. There are similarities between the australian iocg deposits and those in wernecke in the yukon territory, canada.
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