Muntean/Einaudi - Nevada Bureau of Mines and Geology
... lowest known copper to gold ratios (% Cu/ppm Au = ~0.03) of any porphyry-type deposit. The gold deposits are associated with subvolcanic andesitic to dacitic intrusions emplaced into coeval volcanic rocks. Both the Verde and Pancho deposits are zoned in space from a deeper zone of banded quartz vein ...
... lowest known copper to gold ratios (% Cu/ppm Au = ~0.03) of any porphyry-type deposit. The gold deposits are associated with subvolcanic andesitic to dacitic intrusions emplaced into coeval volcanic rocks. Both the Verde and Pancho deposits are zoned in space from a deeper zone of banded quartz vein ...
high-sulphidation, epithermal-style
... high-sulphidation alteration assemblage pyrophyllite–alunite–quartz–kaolinite–hematite–rutile–lazulite, are associated with discrete areas of massive and, locally, vuggy silicic alteration, containing gold, and anomalous concentrations of copper, arsenic and/or antimony. On the northern Burin Penins ...
... high-sulphidation alteration assemblage pyrophyllite–alunite–quartz–kaolinite–hematite–rutile–lazulite, are associated with discrete areas of massive and, locally, vuggy silicic alteration, containing gold, and anomalous concentrations of copper, arsenic and/or antimony. On the northern Burin Penins ...
majalah perdana
... 2011). This migration is clearly evidenced by the east-west alignment of deeply dissected Miocene to Pliocene volcanic centers along the south coast of Java, Lombok and Sumbawa, and a parallel E-W alignment of juvenile and active Quaternary volcanoes that define the present active arc further north ...
... 2011). This migration is clearly evidenced by the east-west alignment of deeply dissected Miocene to Pliocene volcanic centers along the south coast of Java, Lombok and Sumbawa, and a parallel E-W alignment of juvenile and active Quaternary volcanoes that define the present active arc further north ...
Geoscientific Report GR2011-1
... Geology of the northern Flin Flon Belt.............................................................................................................................................6 Juvenile arc and arc-rift volcanic suites (units J1 to J15)............................................................ ...
... Geology of the northern Flin Flon Belt.............................................................................................................................................6 Juvenile arc and arc-rift volcanic suites (units J1 to J15)............................................................ ...
volcanogenic massive sulphide deposits
... base metal classification used by Franklin et al. (1981) and refined by Large (1992) is perhaps the most common. VMS deposits are divided into Cu-Zn, Zn-Cu and Zn-Pb-Cu groups according to their contained ratios of these three metals (Fig 2). The Cu-Zn and Zn-Cu categories for Canadian deposits were ...
... base metal classification used by Franklin et al. (1981) and refined by Large (1992) is perhaps the most common. VMS deposits are divided into Cu-Zn, Zn-Cu and Zn-Pb-Cu groups according to their contained ratios of these three metals (Fig 2). The Cu-Zn and Zn-Cu categories for Canadian deposits were ...
CHAPTER 8 STRUCTURE
... Large parts of the Arabian Shield are structurally dominated by the translation of rocks past each other along fractures, faults, and shear zones. Deformation of this type is common in regions of intense folding, such as in the southern parts of the Arabian Shield, where the rocks are exposed in upr ...
... Large parts of the Arabian Shield are structurally dominated by the translation of rocks past each other along fractures, faults, and shear zones. Deformation of this type is common in regions of intense folding, such as in the southern parts of the Arabian Shield, where the rocks are exposed in upr ...
View
... ject. These maps are the culmination of efforts by the project partners (Manitoba Geological Services Branch (MGSB), Saskatchewan Geological Survey (SGS), Geological Survey of Canada (GSC» and build on the rich history of geoscience mapping in the Flin Flon Belt. A companion set of surficial geology ...
... ject. These maps are the culmination of efforts by the project partners (Manitoba Geological Services Branch (MGSB), Saskatchewan Geological Survey (SGS), Geological Survey of Canada (GSC» and build on the rich history of geoscience mapping in the Flin Flon Belt. A companion set of surficial geology ...
9.2 Metallic mineral occurrences in the shield and deposit types
... DRAFT March 22 2010 pit mine that extracts lower grade ore for processing at the Bulghah heap-leach facility and higher grade ore that is trucked to the Sukhaybarat CIL plant. Al Amar is an underground mine extracting gold-rich polymetallic ore and producing gold doré and copper and zinc concentrate ...
... DRAFT March 22 2010 pit mine that extracts lower grade ore for processing at the Bulghah heap-leach facility and higher grade ore that is trucked to the Sukhaybarat CIL plant. Al Amar is an underground mine extracting gold-rich polymetallic ore and producing gold doré and copper and zinc concentrate ...
M44-2002-C24-eng - Publications du gouvernement du Canada
... northern mining community of Flin Flon, Manitoba by working with the local mining and exploration companies to gain a better understanding of the volcanic setting and hydrothermal signatures of the region’s volcanogenic massive sulphide deposits. The Geological Survey of Canada–Manitoba–Saskatchewan ...
... northern mining community of Flin Flon, Manitoba by working with the local mining and exploration companies to gain a better understanding of the volcanic setting and hydrothermal signatures of the region’s volcanogenic massive sulphide deposits. The Geological Survey of Canada–Manitoba–Saskatchewan ...
Geological Society of America Bulletin - User Web Pages
... in Table 1. Rolland and Pêcher (2001) estimated upper-amphibolite conditions for rocks from this part of the complex, with peak temperatures around 700–750 °C and pressures of 4–5 kbar. During metamorphism, the biotiterich end member of its metaclastic sequence is interpreted to have melted in situ ...
... in Table 1. Rolland and Pêcher (2001) estimated upper-amphibolite conditions for rocks from this part of the complex, with peak temperatures around 700–750 °C and pressures of 4–5 kbar. During metamorphism, the biotiterich end member of its metaclastic sequence is interpreted to have melted in situ ...
Technical Report On Three Gold Exploration Properties Pickle Lake
... The M-DGB claims hosts six historical gold occurrences and deposits, along strike from the past-producing Golden Patricia Mine. The significant occurrences and deposits are named from northwest to southeast, Cooper (or West) Zone, Dorothy Main Zone, Tonsil Lake, Spike Zone, North Dobie Zone and Dobi ...
... The M-DGB claims hosts six historical gold occurrences and deposits, along strike from the past-producing Golden Patricia Mine. The significant occurrences and deposits are named from northwest to southeast, Cooper (or West) Zone, Dorothy Main Zone, Tonsil Lake, Spike Zone, North Dobie Zone and Dobi ...
GEOLOGY OF THE BUCHANS–ROBERTS ARM VOLCANIC BELT
... Gullbridge tract bimodal pyroclastic rocks contain intervals of thick-bedded basaltic hyaloclastite that passes upward into slump-folded felsic breccia. The rhyolitic agglomerates display blocks made of fragmented pillow selvages and are crosscut by peperitic gabbro. Unit Gp consists mainly of felsi ...
... Gullbridge tract bimodal pyroclastic rocks contain intervals of thick-bedded basaltic hyaloclastite that passes upward into slump-folded felsic breccia. The rhyolitic agglomerates display blocks made of fragmented pillow selvages and are crosscut by peperitic gabbro. Unit Gp consists mainly of felsi ...
The Skaergaard Layered Series. Part II
... is not to say that minerals are unaffected; in a dense suspension, some may be deformed, but evidence of this strain is usually weak and may later be erased by recrystallization or annealing. Crystals that grow or recrystallize while magma is being deformed may take on new shapes, sizes, or orientat ...
... is not to say that minerals are unaffected; in a dense suspension, some may be deformed, but evidence of this strain is usually weak and may later be erased by recrystallization or annealing. Crystals that grow or recrystallize while magma is being deformed may take on new shapes, sizes, or orientat ...
Recommendations for Exploration 2013-2014
... The Lavant Lake Gabbro complex has been little studied and may be a worthwhile target for exploration. The northeast trending intrusion occupies large portions of the Townships of Darling, Dalhousie, Lavant, North Sherbrooke and Oso. It has a total length of approximately 45 km and a width of 14.5 k ...
... The Lavant Lake Gabbro complex has been little studied and may be a worthwhile target for exploration. The northeast trending intrusion occupies large portions of the Townships of Darling, Dalhousie, Lavant, North Sherbrooke and Oso. It has a total length of approximately 45 km and a width of 14.5 k ...
Information Circular No. 358
... metamorphic rocks which consist of the Dukou Complex and the Miyi Group as well as the Huili and the Yanbian Groups (CMCJ, 1988). The former two groups are composed of a variety of gneisses, schists, and metavolcanic rocks with minor granulites and marbles, and have undergone moderate- to high-grade ...
... metamorphic rocks which consist of the Dukou Complex and the Miyi Group as well as the Huili and the Yanbian Groups (CMCJ, 1988). The former two groups are composed of a variety of gneisses, schists, and metavolcanic rocks with minor granulites and marbles, and have undergone moderate- to high-grade ...
Geology of the Pothook Alkalic Copper
... pervasive’ alteration grades outward into fractureswith potassic alteration envelopes, indicatingthat at least the outer parts of these alteration zones formed from coalescing alteration envelopes. The close spatial association between this alteration and the monzonite suggests that the alteration i ...
... pervasive’ alteration grades outward into fractureswith potassic alteration envelopes, indicatingthat at least the outer parts of these alteration zones formed from coalescing alteration envelopes. The close spatial association between this alteration and the monzonite suggests that the alteration i ...
Chi, G., Liu, Y. and Dube, B. 2009. Relationship between CO2
... evidence indicates that the main phase of metamorphism overlapped with ductile deformation associated with crustal shortening and thickening. Therefore, although granitoid intrusions likely caused localized contact metamorphism, which overprinted regional metamorphism, the metamorphic pattern of the ...
... evidence indicates that the main phase of metamorphism overlapped with ductile deformation associated with crustal shortening and thickening. Therefore, although granitoid intrusions likely caused localized contact metamorphism, which overprinted regional metamorphism, the metamorphic pattern of the ...
Geology and Hydrothermal Alteration of the Flin Flon–Triple 7
... 2002, Volume 2, Sask. Industry Resources, Misc. Rep. 2002-4.2,CD-ROM, Paper B-3, 12p. ...
... 2002, Volume 2, Sask. Industry Resources, Misc. Rep. 2002-4.2,CD-ROM, Paper B-3, 12p. ...
Water-rock interaction observed in the brittle-plastic transition zone
... between Abukuma belt in the west and South Kitakami belt in the east (Kubo et al., 1990). Various kinds of fault rocks derived mostly from Cretaceous granitoids occur in the fault zone. The granitoids intruded in the relatively shallow level (5 to 10 km depth) judging from the existence of cordierit ...
... between Abukuma belt in the west and South Kitakami belt in the east (Kubo et al., 1990). Various kinds of fault rocks derived mostly from Cretaceous granitoids occur in the fault zone. The granitoids intruded in the relatively shallow level (5 to 10 km depth) judging from the existence of cordierit ...
Structural Controls on Massive Sulfide Deposition and Hydrothermal
... are severely altered and fractured with abundant shear- and alteration-related tension veins and gashes (Fig. 8A). The attitude of fractures is variable due to the interaction of orthogonal synvolcanic faulting, and the regional east– west foliation. The average strikes of two distinct fracture sets ...
... are severely altered and fractured with abundant shear- and alteration-related tension veins and gashes (Fig. 8A). The attitude of fractures is variable due to the interaction of orthogonal synvolcanic faulting, and the regional east– west foliation. The average strikes of two distinct fracture sets ...
Rusty Ridge JEA Drilling Report (PDF Format)
... argue for the contact to be an altered fault breccia at the contact interface. The mafic volcanic rocks in RR10-02 can be separated based on visual characteristics into an upper massiveporphyritic basalt and a lower volcano-sedimentary flowtop sequence. The latter is strikingly similar to the subaer ...
... argue for the contact to be an altered fault breccia at the contact interface. The mafic volcanic rocks in RR10-02 can be separated based on visual characteristics into an upper massiveporphyritic basalt and a lower volcano-sedimentary flowtop sequence. The latter is strikingly similar to the subaer ...
Northern Flin Flon Belt compilation, Manitoba (parts of NTS 63K12, 13)
... has 1) facilitated comparisons between the various tectonostratigraphic components in the Flin Flon Belt and 2) enabled correlations to be made between the Paleoproterozoic rocks and similar successions in modern oceanic arcs. Juvenile-arc and MORB-type volcanic rocks have been shown to be the domin ...
... has 1) facilitated comparisons between the various tectonostratigraphic components in the Flin Flon Belt and 2) enabled correlations to be made between the Paleoproterozoic rocks and similar successions in modern oceanic arcs. Juvenile-arc and MORB-type volcanic rocks have been shown to be the domin ...
PDF
... The Bi’r Umq-Nakasib suture zone, 5-65 km wide and over 600 km long, consists of highly deformed ophiolite nappes and metavolcanic, metasedimentary, and intrusive rocks contained in one of the longest ophiolite-decorated shear zones in the Arabian-Nubian Shield. The rocks originated in a variety of ...
... The Bi’r Umq-Nakasib suture zone, 5-65 km wide and over 600 km long, consists of highly deformed ophiolite nappes and metavolcanic, metasedimentary, and intrusive rocks contained in one of the longest ophiolite-decorated shear zones in the Arabian-Nubian Shield. The rocks originated in a variety of ...
Temagami Greenstone Belt
The Temagami Greenstone Belt (TGB) is a small 2.7 billion year old greenstone belt in the Temagami region of Northeastern Ontario, Canada. It represents a feature of the Superior craton, an ancient and stable part of the Earth's lithosphere that forms the core of the North American continent and Canadian Shield. The belt is composed of metamorphosed volcanic rocks that range in composition from basalt to rhyolite. These form the east-northeast trend of the belt and are overlain by metamorphosed sedimentary rocks. They were created during several volcanic episodes involving a variety of eruptive styles ranging from passive lava eruptions to viscous explosive eruptions.Part of the Canadian Shield, the Temagami Greenstone Belt contains some of the oldest known rocks on Earth. The belt is made up of a number of geologic features such as batholiths, stocks, dikes, volcanic complexes, layered intrusions and deformation zones. These are situated in several geographical townships in the municipality of Temagami, including Chambers, Strathy, Strathcona, Briggs and possibly Best.