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![First thumbnail for: Early Jurassic and Late Cretaceous plagiogranites ...]()
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![First thumbnail for: The Dehshir <span class="search-highlight">ophioli...]()
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![Distribution map of sediment-hosted Zn–Pb (±Ag ± Cu ± Ba) deposits in the Malayer-Esfahan Metallogenic Belt and the Yazd-Anarak Metallogenic Belt (modified after Rajabi et al. 2012). Most of the deposits occur on both sides of the Nain-Baft back-arc basin, bordered by the Nain-Baft ophiolites. PB: Posht-e Badam Block, SSZ: Sanandaj–Sirjan Zone, Za: Zagros fold and thrust belt.]()
![Map of outcropped and inferred intrusive igneous rocks by aeromagnetic data. 1, Urumieh-Dokhtar Magmatic Arc (UDMA), 2, Baft ophiolite belt, 3, Bazman area, 4, East Iran Ophiolite Belt, 5, west of Taftan Mountain, 6, Zahedan Granitoid Belt, 7, Northern Lut zone, 8, Eastern Lut zone, 9, Central Lut zone, 10, Southern Lut zone, 11, Poshte-Badam, 12, Saqand.]()
![(a) The variations in 87Sr/86Sr(i) versus εNd(t). The samples plot near the mantle array and extend from the field of the depleted mantle toward the fields of the EMII end-member component and seawater component. (b) The variations in 87Sr/86Sr(i) versus 143Nd/144Nd(i). The field of mantle components is based on data compiled by Stracke, Bizimis & Salters, (2003) for Atlantic MORB (DMM). Saint Helena (HIMU), Samoa and Society (EMII) and Pitcairn (EMI). The samples extend toward the EMII end-member, suggesting a minor contribution from EMII to the depleted mantle in their sources. The Sr and Nd isotopic compositions of seawater are from the literature: Palmer & Edmond (1989) for Sr and Nd compositions and Piepgras & Wasserburg (1987) and Tachikawa, Jeandel & Roy Barman, (1999) for Nd isotopic compositions. The fields of the Eocene Kamyaran ophiolite and Late Cretaceous Mawat ophiolite are from Azizi et al. (2011b) and Azizi et al. (2013), the data for the Late Cretaceous Neyriz ophiolite are from Shafaii Moghadam et al. (2014), the data for the Late Cretaceous Balvard–Baft ophiolite are from Shafaii Moghadam et al. (2013), and the data for the Harsin ophiolite are from Nouri (2016). (c) Sr isotope versus Ba/Rb diagram showing mixing between upper/lower crust and upper mantle peridotites. The Ba/Rb ratio of the lower crust is based on mafic granulites from the Dabie orogeny in Hou (2003). The Ba and Rb data for the UM and upper crust are from Sun & McDonough (1989). The Sr–Nd data for UM (upper mantle peridotite) are from Jahn et al. (1999), and the Sr–Nd data for the lower and upper crust are from Xu et al. (2004) and Jahn et al. (1999). (d) (Ce/Yb)N versus εNd. Star indicates the (Ce/Yb)N and εNd compositions of the present-day MORB (White & Hofmann, 1982; Sun & McDonough, 1989).]()
![First thumbnail for: A Better Picture of the Mantle Section of the Nain...]()
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![First thumbnail for: Mineral chemistry and melt evolution of the mantle...]()
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![First thumbnail for: The Middle-Late Cretaceous Zagros <span class="sea...]()
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![First thumbnail for: U–Pb zircon ages of Late Cretaceous Nain–Dehshir <...]()
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![(A) Map showing the distribution of the Nain-Baft (inner) Zagros ophiolitic belt, the Kermanshah-Neyriz (outer) Zagros ophiolitic belt, and the location of the Urumieh-Dokhtar magmatic arc (Eocene-Quaternary) and Main Zagros thrust (MZT). (B) Schematic cross section showing the relations between the outer and the inner Zagros ophiolitic belts and the Zagros fold-and-thrust belt.]()
![N-MORB normalized trace-element patterns for ZOBO and ZIBO volcanic rocks (left) and gabbroic rocks (right). In the left panel, we observe N-MORB normalized trace element patterns for volcanic rocks originating from both OB and IB regions. Most of these lavas exhibit notable depletion in Nb–Ta and simultaneous enrichment in U and Pb. These distinctive geochemical signatures suggest their formation in SSZs. However, a few lavas from Kermanshah, Nain and Baft show a lack of significant depletion in Nb–Ta and closely resemble MORBs. It is worth highlighting that Shahr-e-Babak and Baft (IB) ophiolites exhibit higher degrees of depletion in Nb–Ta and enrichment in Pb compared with other regions. These ophiolites were formed in proximity to the presumed Middle–Late Cretaceous nascent arc (the UDMB). Notably, these regions also contain arc products, including felsic rocks from the latest Cretaceous period and volcano-clastic deposits intercalated with lavas, which are conspicuous features within these two ophiolites. In contrast to the lavas, gabbroic rocks originating from both OB and IB ophiolites demonstrate significant depletion in all REEs, particularly the HREEs. Additionally, these gabbroic rocks display more pronounced depletion in Nb–Ta and enrichments in U, Th, Pb and Sr when compared with the lavas. Source: data from Moghadam et al. 2022.]()
![(a) Satellite image of the Nain–Baft Fault Zone with the dark grey terrain to its immediate east marking the lensoidal-shaped peridotite body in the ophiolitic mélange. Towns and villages mentioned in the text are shown with white circles. (b) Simplified geological map of the Nain ophiolite and its surroundings. Map patterns of the ophiolitic subunits in this area show the mélange character of the occurrence of Neotethyan oceanic crustal lithologies. The contact relationships of the intrusive and extrusive rocks of the Urumieh–Dokhtar Magmatic Arc with the Nain ophiolitic mélange should be noted. CNP, Cretaceous Nain plagiogranite; JNP, Jurassic Nain plagiogranite.]()
![First thumbnail for: New Insights into Interpretation of Aeromagnetic D...]()
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![(a) Distribution of major Iranian ophiolites. BF, Baft; ES, Esfandagheh; KR, Kermanshah; NA, Naien; NY, Neyriz; SB, Sabzevar; TK-IR, East of Iran; KH, Khoy; RS, Rasht; MS, Mashhad; SHB, Shahr Babak; BZ, Band e Ziyarat (Ghorbani 2013). (b) Location of the Tavreh mercury prospect in the Khoy ophiolite.]()
![Map showing locations and distribution of different ophiolite complexes in the Zagros orogeny and the location of the Sorkhvand, Nasirabad, Abadeh Tashk and Gugher manganese and ferromanganese deposits (modified after Ghasemi and Talbot, 2006), Abbreviations; Kh: Khoy, Kr: Kermanshah, Ny: Neyriz, Ba: Baft, Sh: Shahre-Babak, Na: Nain.]()
![Location of main Iranian ophiolites from (Ghasemi and Talbot, 2006). Khoy (KH), Kermanshah (KR), Neyriz (NY), Naien (NA), Shahr-e-Babak (SHB), Baft (BF), Esphandagheh (ES), Band-e-Zeyarat (BZ), FannujMaskutan (FM), Iranshahr (IR), Tchehel Kureh (TK), Mashad (MS), Sabzevar (SB), Rasht (RS).]()
1-20 OF 67 RESULTS FOR
Baft Ophiolite
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Journal Article
The petrogenesis and tectonic setting of lavas from the Baft Ophiolitic Mélange, southwest of Kerman, Iran Free
Journal: Canadian Journal of Earth Sciences
Publisher: Canadian Science Publishing
Published: 01 May 1994
Canadian Journal of Earth Sciences (1994) 31 (5): 824–834.
...Mohsen Arvin; Paul T. Robinson Abstract A Late Cretaceous ophiolite complex in the Baft area, southwest of Kerman, Iran, is characteristic of the Central Iranian Ophiolitic Mélange Belt, which wraps around the Lut Block. Despite the extensive tectonic disruption of the Baft complex, most ophiolitic...
Journal Article
Early Jurassic and Late Cretaceous plagiogranites in Nain–Baft ophiolitic mélange zone in Iran: remnants of rift–drift and SSZ evolution of a Neotethyan seaway Available to Purchase
Journal: Journal of the Geological Society
Publisher: Geological Society of London
Published: 20 February 2024
Journal of the Geological Society (2024) 181 (2): jgs2023-181.
...Nargess Shirdashtzadeh; Yildirim Dilek; Harald Furnes; Elton Luiz Dantas Abstract We have investigated the geology, geochemistry and geochronology of various plagiogranite intrusions that are spatially associated with ophiolitic subunits in a mélange terrain exposed within the Nain–Baft fault zone...
FIGURES
Journal Article
The Dehshir ophiolite (central Iran): Geochemical constraints on the origin and evolution of the Inner Zagros ophiolite belt Available to Purchase
Journal: GSA Bulletin
Publisher: Geological Society of America
Published: 01 September 2010
GSA Bulletin (2010) 122 (9-10): 1516–1547.
...H. Shafaii Moghadam; Robert J. Stern; M. Rahgoshay Abstract The Late Cretaceous Dehshir ophiolite is an important element within the Inner Zagros (Nain-Baft) ophiolite belt and contains all components of a complete “Penrose ophiolite,” including tectonized harzburgites, gabbros, sheeted dike...
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Distribution map of sediment-hosted Zn–Pb (±Ag ± Cu ± Ba) deposits in the M... Open Access
in Geology, fluid inclusions and C−O−S−Pb isotopic compositions of the Chahmileh Pb-Zn deposit, Central Iran: Implications for ore genesis
> Geological Magazine
Published: 04 April 2024
Figure 2. Distribution map of sediment-hosted Zn–Pb (±Ag ± Cu ± Ba) deposits in the Malayer-Esfahan Metallogenic Belt and the Yazd-Anarak Metallogenic Belt (modified after Rajabi et al . 2012 ). Most of the deposits occur on both sides of the Nain-Baft back-arc basin, bordered by the Nain-Baft
Image
Map of outcropped and inferred intrusive igneous rocks by aeromagnetic data... Available to Purchase
in New Insights into Interpretation of Aeromagnetic Data for Distribution of Igneous Rocks in Central Iran
> Russian Geology and Geophysics
Published: 01 September 2022
Fig. 7. Map of outcropped and inferred intrusive igneous rocks by aeromagnetic data. 1 , Urumieh-Dokhtar Magmatic Arc (UDMA), 2 , Baft ophiolite belt, 3 , Bazman area, 4 , East Iran Ophiolite Belt, 5 , west of Taftan Mountain, 6 , Zahedan Granitoid Belt, 7 , Northern Lut zone, 8 , Eastern
Image
(a) The variations in 87 Sr/ 86 Sr (i) versus εNd (t) . The samples plot ... Available to Purchase
in Petrogenesis of the Harsin–Sahneh serpentinized peridotites along the Zagros suture zone, western Iran: new evidence for mantle metasomatism due to oceanic slab flux
> Geological Magazine
Published: 12 April 2018
and Late Cretaceous Mawat ophiolite are from Azizi et al. ( 2011b ) and Azizi et al. ( 2013 ), the data for the Late Cretaceous Neyriz ophiolite are from Shafaii Moghadam et al. ( 2014 ), the data for the Late Cretaceous Balvard–Baft ophiolite are from Shafaii Moghadam et al. ( 2013 ), and the data
Journal Article
A Better Picture of the Mantle Section of the Nain Ophiolite Inferred from Detrital Chromian Spinels Available to Purchase
Journal: The Journal of Geology
Publisher: The University of Chicago Press
Published: 01 November 2013
The Journal of Geology (2013) 121 (6): 645–661.
... . The petrogenesis and tectonic setting of lavas from the Baft ophiolitic mélange, southwest of Kerman, Iran . Can. J. Earth Sci. 31 : 824 – 834 . Aubrecht , R. ; Méres , S. ; Sýkora , M. ; and Mikuš , T. 2009 . Provenance of the detrital garnets and spinels from the Albian sediments...
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Journal Article
Geodynamic evolution of Upper Cretaceous Zagros ophiolites: formation of oceanic lithosphere above a nascent subduction zone Available to Purchase
Journal: Geological Magazine
Publisher: Cambridge University Press
Published: 29 June 2011
Geological Magazine (2011) 148 (5-6): 762–801.
... developed along the SW margin of Eurasia. Figure 2 (a) Map showing the distribution of the inner (Nain–Dehshir–Baft–Shahr-e-Babak) and outer (Kermanshah–Neyriz–Haji–Abad) Zagros ophiolitic belts, the location of the Urumieh–Dokhtar magmatic arc (Eocene–Quaternary), and Main Zagros Thrust (MZT). (b...
Journal Article
Mineral chemistry and melt evolution of the mantle wedge peridotites in the Late Cretaceous Zagros Belt ophiolites (Iran): clues for the subduction initiation-induced forearc magmatism Available to Purchase
Journal: Journal of the Geological Society
Publisher: Geological Society of London
Published: 22 April 2024
Journal of the Geological Society (2024) 181 (4): jgs2023-209.
... for the Baft ophiolite ( Moghadam et al. 2022 ). Additionally, thermal ionization mass spectrometry (TIMS) ages of 98.7 ± 0.8, 105.3 ± 0.9 and 105.2 ± 1.4 Ma have been obtained for the Nain ophiolite, and 94.03 ± 0.7 and 93.6 ± 0.7 Ma for the Dehshir-Shahr-e-Babak ophiolites ( Moghadam et al. 2013 b...
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Journal Article
The Middle-Late Cretaceous Zagros ophiolites, Iran: Linking of a 3000 km swath of subduction initiation fore-arc lithosphere from Troodos, Cyprus to Oman Available to Purchase
Journal: GSA Bulletin
Publisher: Geological Society of America
Published: 17 September 2021
GSA Bulletin (2022) 134 (5-6): 1414–1442.
... radiolarites. These high-Mg# pillow lavas grade into calc-alkaline felsic lavas without any unconformity or tectonic contact. The Haji-Abad ophiolites are in contact with the IB Baft ophiolites in the NNE via Jurassic–Lower Cretaceous tholeiitic basaltic lavas (~1000 m thick) (see above). Toward the ESE...
FIGURES
Journal Article
U–Pb zircon ages of Late Cretaceous Nain–Dehshir ophiolites, central Iran Available to Purchase
Journal: Journal of the Geological Society
Publisher: Geological Society of London
Published: 01 January 2013
Journal of the Geological Society (2013) 170 (1): 175–184.
... are obducted onto the Arabian passive margin (e.g. Kizildag, Troodos, Oman, Kermanshah and Neyriz ophiolites) and/or are accreted against the Tauride–central Iranian block (e.g. Guleman and Goksun ophiolites of Turkey and Nain–Baft ophiolites of Iran) (e.g. Yilmaz 1993 ; Yilmaz et al . 1993 ; Parlak et al...
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Image
(A) Map showing the distribution of the Nain-Baft (inner) Zagros ophiolitic... Available to Purchase
in The Dehshir ophiolite (central Iran): Geochemical constraints on the origin and evolution of the Inner Zagros ophiolite belt
> GSA Bulletin
Published: 01 September 2010
Figure 1. (A) Map showing the distribution of the Nain-Baft (inner) Zagros ophiolitic belt, the Kermanshah-Neyriz (outer) Zagros ophiolitic belt, and the location of the Urumieh-Dokhtar magmatic arc (Eocene-Quaternary) and Main Zagros thrust (MZT). (B) Schematic cross section showing
Image
N-MORB normalized trace-element patterns for ZOBO and ZIBO volcanic rocks (... Available to Purchase
in Mineral chemistry and melt evolution of the mantle wedge peridotites in the Late Cretaceous Zagros Belt ophiolites (Iran): clues for the subduction initiation-induced forearc magmatism
> Journal of the Geological Society
Published: 22 April 2024
in Nb–Ta and simultaneous enrichment in U and Pb. These distinctive geochemical signatures suggest their formation in SSZs. However, a few lavas from Kermanshah, Nain and Baft show a lack of significant depletion in Nb–Ta and closely resemble MORBs. It is worth highlighting that Shahr-e-Babak and Baft
Image
( a ) Satellite image of the Nain–Baft Fault Zone with the dark grey terrai... Available to Purchase
in Early Jurassic and Late Cretaceous plagiogranites in Nain–Baft ophiolitic mélange zone in Iran: remnants of rift–drift and SSZ evolution of a Neotethyan seaway
> Journal of the Geological Society
Published: 20 February 2024
Fig. 2. ( a ) Satellite image of the Nain–Baft Fault Zone with the dark grey terrain to its immediate east marking the lensoidal-shaped peridotite body in the ophiolitic mélange. Towns and villages mentioned in the text are shown with white circles. ( b ) Simplified geological map of the Nain
Journal Article
New Insights into Interpretation of Aeromagnetic Data for Distribution of Igneous Rocks in Central Iran Available to Purchase
Journal: Russian Geology and Geophysics
Publisher: Novosibirsk State University
Published: 01 September 2022
Russ. Geol. Geophys. (2022) 63 (9): 1061–1077.
...Fig. 7. Map of outcropped and inferred intrusive igneous rocks by aeromagnetic data. 1 , Urumieh-Dokhtar Magmatic Arc (UDMA), 2 , Baft ophiolite belt, 3 , Bazman area, 4 , East Iran Ophiolite Belt, 5 , west of Taftan Mountain, 6 , Zahedan Granitoid Belt, 7 , Northern Lut zone, 8 , Eastern...
FIGURES
Image
( a ) Distribution of major Iranian ophiolites. BF, Baft; ES, Esfandagheh; ... Available to Purchase
in Geochemical zonality coefficients in the primary halo of Tavreh mercury prospect, northwestern Iran: implications for exploration of listwaenitic type mercury deposits
> Geochemistry: Exploration, Environment, Analysis
Published: 03 December 2018
Fig. 1. ( a ) Distribution of major Iranian ophiolites. BF, Baft; ES, Esfandagheh; KR, Kermanshah; NA, Naien; NY, Neyriz; SB, Sabzevar; TK-IR, East of Iran; KH, Khoy; RS, Rasht; MS, Mashhad; SHB, Shahr Babak; BZ, Band e Ziyarat ( Ghorbani 2013 ). ( b ) Location of the Tavreh mercury prospect
Journal Article
Alpine magmatic and metamorphic processes and plate tectonics in the Zagros Range, Iran Available to Purchase
Journal: GSA Bulletin
Publisher: Geological Society of America
Published: 01 June 1979
GSA Bulletin (1979) 90 (6): 569–576.
... with the ophiolites, and this contact line, now represented by the large Baft-Nain fault zone, is the relict subduction zone in front of the central-eastern Iranian microplate. Geological Society of America 1979 ...
Image
Map showing locations and distribution of different ophiolite complexes in ... Available to Purchase
in Rare-earth element distribution and genesis of manganese ores associated with Tethyan ophiolites, Iran: A review
> Mineralogical Magazine
Published: 01 February 2016
Fig. 1. Map showing locations and distribution of different ophiolite complexes in the Zagros orogeny and the location of the Sorkhvand, Nasirabad, Abadeh Tashk and Gugher manganese and ferromanganese deposits (modified after Ghasemi and Talbot, 2006 ), Abbreviations; Kh: Khoy, Kr: Kermanshah
Image
Location of main Iranian ophiolites from (Ghasemi and Talbot, 2006). Khoy (... Available to Purchase
in Petrology, Geochemistry and Tectonics of the Extrusive Sequence of Fannuj-Maskutan Ophiolite, Southeastern Iran
> Journal of the Geological Society of India
Published: 01 May 2015
Fig.1 Location of main Iranian ophiolites from (Ghasemi and Talbot, 2006). Khoy (KH), Kermanshah (KR), Neyriz (NY), Naien (NA), Shahr-e-Babak (SHB), Baft (BF), Esphandagheh (ES), Band-e-Zeyarat (BZ), FannujMaskutan (FM), Iranshahr (IR), Tchehel Kureh (TK), Mashad (MS), Sabzevar (SB), Rasht (RS).
Journal Article
Zagros orogeny: a subduction-dominated process Available to Purchase
Journal: Geological Magazine
Publisher: Cambridge University Press
Published: 05 July 2011
Geological Magazine (2011) 148 (5-6): 692–725.
...-Oligocene SW–NE shortening (Kargaranbafghi, Neubauer & Genser, 2010 ). Most importantly, Central Iran is cross-cut by several ophiolitic domains (Nain–Baft, Sabzevar, Sistan; Fig. 1 c) interpreted as minor oceanic seaways showing discontinuous oceanic crust emplacement (e.g. Baroz et al . 1984...
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