With an tendancy for being tremendous in size, relatively simple metallurgy and. Iron oxidecuau iocg deposits encompass a range of ore body shapes, including stratabound replacement ores and hydrothermal breccias. Alteration vectoring to iocgu deposits in frontier. On a percentage basis, nevada is the fastest growing state in the country. Volcanogenic massive sulphide vms deposits are an important base metal deposit type, typically with combinations of zn, cu, pb, ag, and au. Gci financial ltd does not offer its services if you are a citizen or resident of any of the following countries. The prominent hill iron oxidecoppergold iocg deposit, located in the gawler craton of south australia, contains ca.
Gawler iocg deposit gradetonnages in perspectivegawler iocg deposit gradetonnages in perspective 0. Kiskamavaara a shear zone hosted iocgstyle of cu coau. Atacama fault zone that have undergone regional extension. 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 search for ironoxidecoppergold iocg deposits is developing in the kirkland lake resident geologist district. Pdf prominent hill is an iron oxide copper gold iocg deposit hosting. Our preliminary recovered model is consistent with the understanding of the geology and with voxel inversion results. Its aim is to improve the quality of computer assisted training or conferences. The geodatabase is a container used to hold a collection of datasets. Gold in iron oxide coppergold deposits sciencedirect. Iocg deposits commonly have a spacetime association with kirunatype apatite bearing oxide fe. Pdf gold viewer is a lightweight program with download size of approximately 4 mb.
The mount isa province in northern australia figure 1 is one of the worlds most prospective regions for minerals. During the latter part of the phanerozoic, numerous iron oxidecuau iocg systems formed in parts of the cordillera of north and south america. Mapping deep electrical conductivity structure in the. The olympic cuau province also hosts a range of other iron oxidecoppergold iocg deposits including prominent hill and carrapateena.
Deditius3, craig lundstrom4, ilya bindeman5, and rodrigo munizaga6 1 department of earth and environmental sciences, university of michigan, 1100 north. Surficial deposits are subsequently altered by processes of weathering, inputs of fine dust from the atmosphere, soil development, and local erosion, so the character of the surface and nearsurface portion of the deposits is related to the length of time that the deposits have been exposed at the surface. Goldfield worked from late 1880s mainly abandoned in 191020s drought and. 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 iocgs tend to be much older and are generally protoizoic in age from 1. Hosted within fault or shear zone systems parallel to main orogenic zones e. Only with adobe acrobat reader you can view, sign, collect and track feedback, and share. It hosts three of the ten largest znpb deposits in the world e. Delineating the structural controls on the genesis of iron. This follows from the fact that no simple descriptive model can adequately capture the diversity of the systems that are included in this family any more than for epithermal deposits or. Pdf iron oxide coppergold iocg mineralization at the imiter. Iocg systems are diverse in character but deposits from around the world, including examples from australia, china, sweden, north america, brazil, and the andes, share similarities in terms of alteration zoning, mineralisation styles and geochemical footprints. 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. Summary of deposits survey filing for june 30, 2014 the summary of deposits sod is the annual survey of branch office deposits as of june 30 for all fdicinsured institutions, including insured branches of foreign banks.
Force,1 sukirno djaswadi,2 and theo van leeuwen3 abstract at the tangse porphyrycopper prospect, rutile in thick soil reflects the distribution. Porter geoconsultancy continued its international study tour series of professional development courses by visiting a representative selection of the most important iron oxide coppergold deposits in south america, in the andes of chile and the carajas region of brazil. This material includes a range of weathered carbonatebearing rocks, including limestone, as well as in situ, transported and reworked pedogenic carbonatebearing rocks sometimes referred to as calcrete but can also include dolomite, derived from. What are the differences between sedex and vms deposits and how the vms and sedex deposits fit into the overall scheme of things. View, sign, collaborate on, and annotate pdfs with our free adobe acrobat reader. Xiasma is a multifiles pdf viewer allowing to draw and write on each slide or page. The origin of the mineralization is controversial and several very different genetic models have previously been proposed. It can be saved, opened, copied, or moved to another system and shared between users. Map showing regions of the ocean expected to provide areas geologically suitable for subseabed waste disposal 87 tables 1. The data used in this contribution are mainly from a global compilation of wellestablished iocg deposits in williams et al. They often occur as lenses of polymetallic massive sulphide that form at or near the seafloor in submarine volcanic environments. The occurrence of large, massive iron oxide deposits throughout the bushveld complex, south africa, and its associated roofrocks is well known. Recognizing footprints of fe oxide cuau iocg mineralization depends on the perspective that the beholder has on the nature and origin of these deposits.
Afghanistan, cuba, eritrea, iran, iraq, kyrgyzstan, libya, north korea, south sudan, sudan, syria or the united states of america. File geodatabasesstored as folders in a file system. Distinguishing pedogenic carbonates from weathered marine. Each dataset is held as a file that can scale up to 1 tb in size. Textures and chemical compositions of magnetite from iron oxide coppergold iocg and kirunatype iron oxideapatite ioa deposits and their implications for ore. The style of mineralisation and the associated alteration exhibits many characteristics of iron oxidecoppergold iocg type deposits. Contributions to the geology of mineral deposits exploration for porphyry metal deposits based on rutile distribution a test in sumatera by eric r. Iron oxide copper gold ore deposits are important and highly valuable concentrations of copper, gold and uranium. Barton center for mineral resources, department of geosciences, university of arizona, tucson, arizona 85721, u. The carpentaria conductivity anomaly at the eastern margin of the province is a major electrical conductivity structure of the australian continent. The olympic cuau province is a metallogenic province in south australia that contains one of the worlds most significant cuauu resources in the olympic dam deposit.
The mount isa province in northern australia is one of the worlds most strongly endowed regions for base metals and host to major ironoxidecoppergold iocg deposits. 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. Carbonatedominated regolith has a widespread global distribution concentrated in the mid latitudes batjes, 2012, chen et al. Ore deposits of northern chile the latest international field course organized by the new mexico institute of mining and technology seg student chapter took place during january 8th through th of 2017. The sio2rich magnetite termed silician magnetite occurs in early calcic to potassic alteration zones as orderly oscillatory layers in polyhedral magnetite and as isolated discrete grains, displaying perceptible optical differences. Andean type iocg deposits generally display the following characteristics.
It can be used standalone or integrated into other windows programs to. Find, read and cite all the research you need on researchgate. Iocg deposits are thought to form as pipelike or faultbound hydrothermal breccias. The iocg sensu stricto deposits are magmatichydrothermal deposits that contain economic cu and au grades, are structurally controlled, commonly contain significant volumes of breccia, are commonly associated with presulfide sodic or sodiccalcic alteration, have alteration andor brecciation zones on a large, commonly regional, scale relative. Lorena au pumpkin gully goldfield pumpkin gully goldfield, located 30km south of ernest henry with plenty of outcrop. Iron oxidecoppergold iocg deposits are characterized by abundant lowti iron oxide magnetite and hematite, pervasive hydrothermal alkali nacak alteration, and.
You remember that nature concentrates the metals by a process of partially melting crustal rocks at depth, letting the metal rise through the crust and cool, dumping the valueless material such as feldspar and amphibole on the way and concentrating the really useful. Iron oxide coppergold iocg deposits through earth history. We use the implicit method to make a detailed threedimensional geological model of a stratabound iocg in the cloncurry district, the e1 group, to elucidate structural controls on mineralization. Such deposits have 1 cu, with or without au, as economic metals.
Minerals free fulltext silician magnetite from the. Areas of subsea physiographic provinces 8 subsea mineral resources v. Iocg workshop, feb 2006 geoscience australia gawler iocg deposit gradetonnages in perspectivegawler iocg deposit gradetonnages in perspective 0. It can be used standalone or integrated into other windows programs to provide native pdf viewing functionality. Institutions with branch offices are required to submit this survey to the fdic by july 31, 2014. Applied to iron oxide coppergold iocg deposits in five regions of australia. The cloncurry district mineral system an iocg exploration. Distribution of some recognised iocg deposits worldwide. Iron oxide copper gold iocg and iron oxide apatite ioa. Ore deposits related to subaerial epithermal gold au and submarine kuroko cyprus cu zn,japan, bifs volcanism.
Associated with magmatic intrusions of gabbrodiorite to diorite composition. Olympic dam deposit in australia, ranks 1st in world uranium resources, 4 th in gold, and 4 in copper bhp billiton, 2006. Mapping iron oxide cuau iocg mineral potential in australia. Before zooming in on the findings, id like to thank the 220 corporate. Gtechnology databrowser easy browsing, visualization, and editing of gtechnology data. Download limit exceeded you have exceeded your daily download allowance. As many as 800 different deposits are known worldwide. We are proud to present the latest edition of our global treasury benchmark survey. Download reader try acrobat pro amplify your pdf skills with a click.
951 1019 223 511 671 1572 1179 127 325 990 225 1428 1010 400 686 1078 254 130 159 1187 207 1230 754 419 1142 327 1418 375 335 817 1350 760 181 1105 1108 1136 774 474 433 208 842