northwestern Iran

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Journal Article
Published: 18 December 2017
Geochemistry: Exploration, Environment, Analysis (2017) geochem2017-029.
... deposit, located in the NW of Iran, was investigated to estimate the level of erosion of this deposit based on the geochemical data obtained from 46 drill cores. We used vertical zonation indices (Pb.Zn/Cu.Mo) and (Pb.Zn/Cu.Ag) as geochemical indicators in exploration of blind porphyry-Cu deposits...
Journal Article
Published: 05 August 2014
Bulletin of the Seismological Society of America (2014) 104 (5): 2512-2528.
.... Earthq. Eng. 25 , 167 – 185 . Chandra V. J. McWhorten G. Nowroozi A. ( 1979 ). Attenuation of intensities in Iran , Bull. Seismol. Soc. Am. 69 , 237 – 250 . Chiou B. S. Youngs R. R. ( 2008 ). An NGA model for the average horizontal component of peak ground...
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Journal Article
Published: 01 November 2004
Geochemistry: Exploration, Environment, Analysis (2004) 4 (4): 307-315.
...A. Karimzadeh Somarin AbstractThe Mazraeh Cu–Fe skarn deposit, located in the Ahar region of northwestern Iran, is currently being mined and contains reserves of about 400,000 tons grading 1.2 wt% Cu. The deposit contains both exoskarn formed within the calcareous wall rock and endoskarn formed...
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Journal Article
Published: 01 September 1997
Seismological Research Letters (1997) 68 (5): 753-756.
... Tectonics of the Alpine-Himalayan Belt between Western Turkey and Pakistan , Geophys. J. R. Astr. Soc ., 77 , 185 – 264 . Nogol-Sadat , M.A.A. ( 1994 ). Seismotectonic Map of Iran , 1:1000000 scale, Treatise on the Geology of Iran, Geological Survey of Iran . Zaré , M. ( 1997...
Overview of <b>northwestern</b> <b>Iran</b> with topography from Shuttle Radar Topography...
Published: 10 February 2015
Figure 1. Overview of northwestern Iran with topography from Shuttle Radar Topography Mission ( SRTM ) data with 90 m resolution ( Jarvis et al. 2008 ). The star marks the position of the Ahar‐Varzeghan earthquake sequence. Faults are taken from Copley and Jackson (2006) . NTF , North Tabriz
Journal Article
Published: 01 December 2011
Bulletin of the Seismological Society of America (2011) 101 (6): 3020-3031.
... of horizontal measurements. We simulated the corresponding Wood–Anderson seismograms for over 133,000 available waveforms. After preliminary analysis, the data set was subdivided in order to derive a local magnitude scale for northwestern Iran. The distance attenuation curve, station correction terms...
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Journal Article
Published: 01 April 2007
Mineralogical Magazine (2007) 71 (2): 203-222.
...R. Hajialioghli; M. Moazzen; G. T. R. Droop; R. Oberhänsli; R. Bousquet; A. Jahangiri; M. Ziemann AbstractThe Takab meta-ultramafic rocks of northwestern Iran crop out in association with a variety of metamorphic rocks and they can be divided into three types on the basis of dominant mineral...
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Journal Article
Published: 17 May 2012
Geological Magazine (2012) 149 (6): 1077-1088.
...ADEL SAKI; MOHSSEN MOAZZEN; ROLAND OBERHÄNSLI AbstractThe Poshtuk metapelitic rocks in northwestern Iran underwent two main phases of regional and contact metamorphism. Microstructures, textural features and field relations indicate that these rocks underwent a polymetamorphic...
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Series: GSA Special Papers
Published: 01 January 2006
DOI: 10.1130/2006.2409(25)
... forms fold belts along major thrust faults in southeastern Anatolia and in the Caucasus, while originating major strike-slip faults in eastern Anatolia and northwestern Iran capable of generating major destructive earthquakes. The Arabia plate is moving northerly at a rate of ∼18 mm/yr, whereas...
Journal Article
Published: 01 January 2004
Micropaleontology (2004) 50 (3): 301-306.
... or pyritized. This paper describes a method of extracting well preserved calcified radiolaria from micrites utilizing acetic acid. The same method resulted in the extraction of well preserved Upper Cretaceous planktonic foraminifera from indurated micrite within the Khoy ophiolitic complex of northwestern Iran...
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Journal Article
Journal: Economic Geology
Published: 01 August 1998
Economic Geology (1998) 93 (5): 651-670.
...Ardeshir Hezarkhani; Anthony E. Williams-Jones AbstractThe Sungun porphyry copper deposit is located in northwestern Iran (Azarbaijan province) and is associated with diorite-granodiorite to quartz monzonite of Miocene age which intruded Eocene volcano-sedimentary and Cretaceous carbonate rocks...
Series: GSA Special Papers
Published: 01 October 2008
DOI: 10.1130/2008.2444(07)
... Arabia-Eurasia convergence is accommodated in the Zagros Mountains of southwestern Iran and in the seismic belts of the central Caspian, Alborz, and Kopeh Dagh of northern Iran. The Zagros is a NW-trending fold-and-thrust belt made up of a 6–15-km-thick sedimentary pile, which overlies...
Journal Article
Published: 01 June 1979
Bulletin of the Seismological Society of America (1979) 69 (3): 773-823.
...R. C. Quittmeyer; K. H. Jacob abstractBoth historical (noninstrumental) and modern (instrumental) data are compiled and critically reviewed to document the seismicity of Pakistan, Afghanistan, northwestern India, southeastern Iran, and neighboring areas. Earthquakes occurring between 1914 and 1965...
Journal Article
Published: 19 May 2015
Bulletin of the Seismological Society of America (2015) 105 (3): 1419-1434.
... in the Generalized Inversion for Northwestern Iran (Dataset 1) and Stations That are Employed for Inversion and Simulation of the Ahar–Varzaghan Dual Earthquakes (Dataset 2) PGA (cm/s/s) Ahar–Varzaghan 1 PGA (cm/s/s) Ahar–Varzaghan 2 Station Number Station Name Latitude...
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Series: Geological Society, London, Special Publications
Published: 01 January 2016
DOI: 10.1144/SP423.3
EISBN: 9781862399556
... Abstract Microvertebrate samples from the Upper Devonian Hojedk section, southeastern Iran, and the Napier Formation, northwestern Australia, have yielded scales of agnathan thelodonts, dated as early/mid-Famennian ( crepida–marginifera/trachytera conodont zones). These scales are referred...
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Series: Geological Society, London, Special Publications
Published: 01 January 2009
DOI: 10.1144/SP314.8
EISBN: 9781862395626
... Table 1. Generic diversity of Famennian echinoderms Genera Total Sepkoski 2002 NW China SW China Australia US Morocco England Saalfeld Etroeungtian Germany Iran Blastoidea Crinoidea 15 (1) 2 12 0 0 0 1 1 0 2 (1) 0 ȃFlexibles 9 5 5 0 1 2 0...
Series: Geological Society, London, Special Publications
Published: 01 January 2017
DOI: 10.1144/SP428
EISBN: 9781862399600
Journal Article
Published: 08 July 2011
Geological Magazine (2011) 148 (5-6): 925-939.
..., Sanandaj–Sirjan Zone, western Iran”: [J Struct Geol 22(8) (2000) 1125–1139] . Journal of Structural Geology 22 , 2033 –4. Numan N. M. S. & Al-Azzawi N. K. 2002 . Progressive versus paroxysmal Alpine folding in Sinjar Anticline, Northwestern Iraq . Iraqi Journal of Earth...
Journal Article
Published: 01 March 2008
Journal of Paleontology (2008) 82 (2): 344-350.
... paleogeographic linkage with other far-flung terranes of western North America, namely the Western Great Basin of Nevada, Stikinia of the Yukon, as well as the Antimonio terrane of northwestern Mexico. In addition, Parauvanella cf. ferdowensis is known from the Upper Triassic Nayband Formation, Iran. Finally...
Journal Article
Journal: GSA Bulletin
Published: 01 October 1994
GSA Bulletin (1994) 106 (10): 1332-1350.
..., Jebel Bilas cross-trend faults) show northeast-southwest extension at right angles to the Palmyride shortening direction. This extension parallels the major Euphrates graben trend in eastern Syria and northwestern Iraq and also parallels some aligned Pliocene-Pleistocene volcanic rifts south of Damascus...