Geology, timing, and genesis of the high sulfidation Au (–Cu) deposit of Touzlar, NW Iran

Heidari, Seyed Mehran; Daliran, Farahnaz; Paquette, Jean‐Louis; Gasquet, Dominique

doi:10.1016/j.oregeorev.2014.05.013

Cited by 39 publications

(11 citation statements)

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“…This is consistent with the pattern of epithermal gold mineralization in the UDMA (Figure 1b), with older deposits in the northwest and younger ones in the southeast, i.e. the Touzlar deposit (Heidari, Daliran, Paquette, & Gasquet, 2015) has a U-Pb zircon age of 18.2-19.1 Ma, and the Sari Gunay deposit has an 40 Ar/ 39 Ar sericite age of 10.7 Ma (Richards et al, 2006), while the Chah Zard deposit is younger and has a U-Pb zircon age of 6.2 Ma. This southeastward migration of porphyry and epithermal mineralization along the UDMA is consistent with oblique and thus diachronous collision between Arabia and Eurasia (Omrani et al, 2008).…”

Section: Metallogenic Contextsupporting

confidence: 89%

Compositional characteristics and geodynamic significance of late Miocene volcanic rocks associated with the Chah Zard epithermal gold–silver deposit, southwest Yazd, Iran

et al. 2017

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Section: Metallogenic Contextsupporting

confidence: 89%

Compositional characteristics and geodynamic significance of late Miocene volcanic rocks associated with the Chah Zard epithermal gold–silver deposit, southwest Yazd, Iran

et al. 2017

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“…Zircon U–Pb dating of three independent samples of this unit obtained at different locations yielded well reproducible ages of 10.7 ± 0.3, 10.8 ± 0.2 and 10.7 ± 0.2 Ma (Table ; Figs , and ). Our data suggest active regional volcanism between at least ~25 and 15 Ma (similarly to the Takab Range Complex, Heidari et al ., ) and the establishment of new volcanic centres in NW Iran by ~11 Ma (e.g. Richards et al ., ; Reichenbacher et al ., ).…”

Section: Resultsmentioning

confidence: 97%

“…13). This range is composed of Pre-Cambrian basement rocks unconformably covered by~19-to 16-Myr-old volcanics, volcaniclastics, limestones and marls coeval with the Qom Formation, which have been subsequently folded and thrusted (Heidari et al, 2015;Fig. 3).…”

Section: Geometry Of the Northern Great Pari Basinmentioning

confidence: 99%

Tectono‐sedimentary evolution of the northern Iranian Plateau: insights from middle–late Miocene foreland‐basin deposits

et al. 2016

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Sedimentary basins in the interior of orogenic plateaus can provide unique insights into the early history of plateau evolution and related geodynamic processes. The northern sectors of the Iranian Plateau of the Arabia-Eurasia collision zone offer the unique possibility to study middle-late Miocene terrestrial clastic and volcaniclastic sediments that allow assessing the nascent stages of collisional plateau formation. In particular, these sedimentary archives allow investigating several debated and poorly understood issues associated with the long-term evolution of the Iranian Plateau, including the regional spatio-temporal characteristics of sedimentation and deformation and the mechanisms of plateau growth. We document that middle-late Miocene crustal shortening and thickening processes led to the growth of a basement-cored range (Takab Range Complex) in the interior of the plateau. This triggered the development of a foreland-basin (Great Pari Basin) to the east between 16.5 and 10.7 Ma. By 10.7 Ma, a fast progradation of conglomerates over the foreland strata occurred, most likely during a decrease in flexural subsidence triggered by rock uplift along an intraforeland basement-cored range (Mahneshan Range Complex). This was in turn followed by the final incorporation of the foreland deposits into the orogenic system and ensuing compartmentalization of the formerly contiguous foreland into several intermontane basins. Overall, our data suggest that shortening and thickening processes led to the outward and vertical growth of the northern sectors of the Iranian Plateau starting from the middle Miocene. This implies that mantle-flow processes may have had a limited contribution toward building the Iranian Plateau in NW Iran.

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“…Succeeding the Qom Formation, middle Miocene red beds and evaporates frequently occur around the border zone depressions, which are filled with younger mudstone and evaporites that form the modern playas. Younger volcanics, ranging in age from the Miocene to Quaternary, occur as lava domes and cinder cones between the towns of Qorveh and Takab in the northwestern part of the belt (Figure ) [ Boccaletti et al ., ; Heidari , ; Heidari et al ., ; Allen et al ., ].…”

Section: Stratigraphic Recordmentioning

confidence: 98%

The Neotethyan Sanandaj‐Sirjan zone of Iran as an archetype for passive margin‐arc transitions

2016

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The Sanandaj-Sirjan zone of Iran is a northwest trending orogenic belt immediately north of the Zagros suture, which represents the former position of the Neotethys Ocean. The zone contains the most extensive, best preserved record of key events in the formation and evolution of the Neotethys, from its birth in Late Paleozoic time through its demise during the mid-Tertiary collision of Arabia with Eurasia. The record includes rifting of continental fragments off of the northern margin of Gondwanaland, formation of facing passive continental margins, initiation of subduction along the northern margin, and progressive development of a continental magmatic arc. The latter two of these events are critical phases of the Wilson Cycle that, elsewhere in the world, are poorly preserved in the geologic record because of superimposed events. Our new synthesis reaffirms the similarity between this zone and various terranes to the north in Central Iran. Late Paleozoic rifting, preserved as A-type granites and accelerated subsidence, was followed by a phase of pronounced subsidence and shallow marine sedimentation in Permian through Triassic time, marking the formation and evolution of passive margins on both sides of the suture. Subduction and arc magmatism began in latest Triassic/Early Jurassic time, culminating at~170 Ma. The extinction of arc magmatism in this zone, and its shift northeastward to form the subparallel Urumieh-Dokhtar arc, occurred diachronously along strike, in Late Cretaceous or Paleogene time. Post-Cretaceous uplift transformed the zone from a primarily marine borderland into a marine archipelago that persisted until mid-Tertiary time.

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Geology, timing, and genesis of the high sulfidation Au (–Cu) deposit of Touzlar, NW Iran

Cited by 39 publications

References 50 publications

Compositional characteristics and geodynamic significance of late Miocene volcanic rocks associated with the Chah Zard epithermal gold–silver deposit, southwest Yazd, Iran

Compositional characteristics and geodynamic significance of late Miocene volcanic rocks associated with the Chah Zard epithermal gold–silver deposit, southwest Yazd, Iran

Tectono‐sedimentary evolution of the northern Iranian Plateau: insights from middle–late Miocene foreland‐basin deposits

The Neotethyan Sanandaj‐Sirjan zone of Iran as an archetype for passive margin‐arc transitions

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