|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Application of Spectral Angle Mapper Classification to Discriminate Hydrothermal Alteration in Southwest Birjand, Iran, Using Advanced Spaceborne Thermal Emission and Reflection Radiometer Image Processing显示文摘The purpose of this study is to evaluate the Spectral Angle Mapper (SAM) classification method for determining the optimum threshold (maximum spectral angle) to unveil the hydrothermal mineral assemblages related to mineral deposits. The study area indicates good potential for Cu-Au porphyry, epithermal gold deposits and hydrothermal alteration well developed in arid and semiarid climates, which makes this region significant for Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) image processing analysis. Given that achieving an acceptable mineral mapping requires knowing the alteration patterns, petrochemistry and petrogenesis of the igneous rocks while considering the effect of weathering, overprinting of supergene alteration, overprinting of hypogene alteration and host rock spectral mixing, SAM classification was implemented for argillic, sericitic, propylitic, alunitization, silicification and iron oxide zones of six previously known mineral deposits: Maherabad, a Cu-Au porphyry system; Sheikhabad, an upper part of Cu-Au porphyry system; Khoonik, an Intrusion related Au system; Barmazid, a low sulfidation epithermal system; Khopik, a Cu-Au porphyry system; and Hanish, an epithermal Au system. Thus, the investigation showed that although the whole alteration zones are affected by mixing, it is also possible to produce a favorable hydrothermal mineral map by such complementary data as petrology, petrochemistry and alteration patterns. | Maryam ABDI Mohammd H. KARIMPOUR | 2012 | Acta Geologica Sinica(English Edition)2012，86，5： | 5 |
| 2 | Hydrothermal Alteration Mapping in Northern Khur, Iran, Using ASTER Image Processing: a New Insight to the Type of Copper Mineralization显示文摘Eastern Iran has great potential for the discovery of different types of mineralization. The study area encompasses Tertiary magmatism in the northern Lut block located in northern Khur, South Khorasan, eastern Iran and is mostly covered by volcanic rocks, which are intruded by porphyritic subvolcanic intrusions in some places. Application of the spectral angle mapper (SAM) technique to Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) images detected sericitic, argillic, and propylitic alterations, silicification, and secondary iron oxides. The alteration is linear and associated within vein-type mineralization. Twelve prospective areas are selected for detailed exploration and based on our processing results, in addition to NW-SE faults, which are associated with Cu mineralization indications, NE-SW faults are also shown to be important. Based on the presence of subvolcanic rocks and numerous Cu ± Pb-Zn vein-type mineralizations, extensive alteration, high anomaly of Cu and Zn (up to 100 ppm), the age (43.6 to 31.4 Ma) and the initial 87Sr/86Sr ratio (0.7047 to 0.7065) of the igneous rocks, and the metallogenic epoch of the Lut block (middle Eocene-lower Oligocene) for the formation of porphyry Cu and epithermal deposits, the studied area shows great potential for porphyry copper deposits. | Azadeh Malekzadeh SHAFAROUDI Mohammad Hassan KARIMPOUR | 2013 | Acta Geologica Sinica(English Edition)2013，87，3： | 3 |
| 3 | Nonlinear vibration of an elastically restrained tapered beam显示文摘This paper presents the analytical simulation of an elastically restrained tapered cantilever beam using the energy balance method(EBM) and the iteration perturbation method(IPM).To assess the accuracy of solutions,we compare the results with the harmonic balance method(HBM).The obtained results from EBM and IPM are in excellent agreement with HBM results.The results show that both methods can be easily extended to other nonlinear oscillations and it can be predicted that both methods can be found widely applicable in engineering and physics. | KARIMPOUR S. GANJI S.S. BARARI A. IBSEN L.B. DOMAIRRY G. | 2012 | Science China(Physics,Mechanics & Astronomy)2012，55，10： | 2 |
| 4 | Time effects relate to crushing in sand显示文摘 | KARIMPOUR H LADE P V | 2010 | Joumal of Geotechnical and Geoenvironmental Engineering2010，136，9： | 1 |
| 5 | Mineralogic, Flu- id Inclusion, and Sulfur Isotope Evidence for the Genesis of Sechangi Lead-zinc (-copper) Deposit, Eastern Iran显示文摘 | Shafaroudi A M Karimpour M H | 2015 | Journal of African Earth Sciences2015，107，： | 1 |
| 6 | An Interacting Fuzzy-Fading-Memory-Based Augmented Kalman Filte- ring Method for Maneuvering Target Tracking显示文摘 | Ahmadreza Amirzadeh Ali Karimpour | 2013 | Digit- al Signal Processing2013，23，5： | 1 |
| 7 | Effects of ultravioletradiation and artificial pollution on the leakage current ofSilicon Rubber insulators 显示文摘 | Joneidi I A? Jadidian J Karimpour R | 2011 | Electrical Insulation Confer-ence2011，，8： | 1 |
| 8 | Petrochemical Characteristics and Timing of Middle Eocene Granitic Magmatism in Kooh-Shah, Lut Block, Eastern Iran显示文摘The Kooh-Shah region located in a Tertiary volcanic-plutonic belt of the Lut Block in eastern Iran comprises several subvolcanic intermediate to acidic intrusive rocks, diorite to syenite in composition, which have intruded into volcanic rocks. The Kooh-Shah granitoid rocks are characterized by enrichment in large ion-lithophile elements (LILE: e.g. Sr, Ba, Rb) and depletion in high field-strength elements (HFSE: e.g. Nb, Ta, Ti). The chondrite-normalized REE patterns are characterized by moderate LREE enrichment (La/Yb)N=6.01-10.01, medium-heavy REE enrichment, and absence of Eu anomalies. The Kooh-Shah intrusive rocks are metaluminous, shoshonitic with calc-alkaline affinity and high values of magnetic susceptibility, and classified as the magnetite-series of oxidant I-type granitoids. The age of Kooh-Shah granitoid rocks based on zircon U-Pb age dating is 39.7±0.7 Ma (=Middle Eocene) and the ranges of their initial 87Sr/86Sr and 143Nd/144Nd ratios are from 0.704812 to 0.704920 and 0.512579 to 0.512644, respectively, when recalculated to an age of 39 Ma. The initial ?Nd isotope values for the Kooh-Shah intrusive rocks range from -0.18 to 1.09. This geochemical data indicates that the Kooh-Shah granitoid rocks formed from depleted mantle in an island arc setting. The geochemical signature of the studied granitoid rocks represents a characteristic guide for future exploration of copper-gold porphyry-type deposits in the Lut block. | Maryam ABDI M. H. KARIMPOUR | 2013 | Acta Geologica Sinica(English Edition)2013，87，4： | 1 |
| 9 | Bilateral com- plex regional pain syndrome in a woman with major depressive 4isor- der显示文摘 | Dormohammadi TT Karimpour RS Afshari A | 2015 | Arch Iran Med2015，18，3： | 1 |
| 10 | Nonlinear Oscillation System of Mass with Serial Linear and Nonlinear Springs显示文摘 | GANJI S R S BARARI A KARIMPOUR S | 2013 | Indian Journal of Physics2013，87，8： | 1 |
| 11 | 多机电力系统附加励磁控制器的优化配置显示文摘针对多机电力系统附加励磁控制器安装位置选择问题,基于奇异值分解的相关理论,利用传递函数矩阵给出附加励磁控制器安装地点的评价指标。该评价指标不需要系统状态矩阵的QR分解和传递函数留数的计算,通过求解系统输入—输出的传递函数矩阵的最大奇异值及其奇异向量来识别每台发电机对振荡模态的贡献程度,从而简化了计算过程和运算量。将该方法应用于多机电力系统,找出了影响每个振荡模态的最小数目的机组及附加阻尼控制器的最佳配置点,验证了该方法的正确性。 | 孙勇 KARIMPOUR Ali 牟晓明 李志民 于继来 | 2009 | 电机与控制学报2009，13，5： | 1 |
| 12 | Thioredoxin reductase regulates AP-1 activity as well as thioredoxin nuclear localization via active cysteines in response to ionizing radiation显示文摘 | LOU J LIN LL | 2002 | O ncogene2002，21，41： | 1 |
| 13 | Static fatigue controls particle crushing and time effects in granular materials显示文摘 | Lade P V Karimpour H | 2010 | Soils & Foundations2010，50，5： | 1 |
| 14 | Thioredoxin reductase regulates AP-1 activity as well as thioredoxin nuelear localization via aetive cysteines in response to ionizing radiation显示文摘 | Karimpour S Lou J Lin LL | 2002 | Oncogene2002，21，41： | 1 |
| 15 | A controlled Poisson Voronoi tessellation for grain and cohesive boundary generation applied to crystal plasticity analysis 显示文摘 | Zhang P Karimpour M Balint D | 2012 | Computational Materials Science2012，64，： | 1 |
| 16 | Trans- vaginal sonographic evaluation at different menstrual cycle phases in diagnosis of uterine lesions 显示文摘 | Hajishaiha M Ghasemi-Rad M Karimpour N | 2011 | Int J Womens Health2011，3，： | 1 |
| 17 | He~ iteration perturbation method to nonlinear oscillations of mechanical systems with single-de- gee-of freedom显示文摘 | GANJI D D KARIMPOUR S SGANJI S S | 2009 | International Journal of Modem Physics B2009，23，11： | 1 |
| 18 | Petrogenesis of the AO porphyry copper complex in Jackson and Grand Counties, northwestern Colo rado显示文摘 | Karimpour M H Atkinson Jr W W | 1983 | Global Tectonics and Metallogeny1983，2，： | 1 |
| 19 | Antinociceptive effects of Teucrium polium L total extract and essential oil in mouse writhing test显示文摘 | Abdollahi M Karimpour H Monsef-Esfehani HR | 2003 | Pharmacol Res2003，48，1： | 1 |
| 20 | Singular value decomposition as a measure for control structure design in power systems 显示文摘 | KARIMPOUR A MALIK O P ASSGHARIAN R | 2004 | Electric Power Components and Systems2004，32，3： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员