نتایج جستجو برای: geochemical anomalies

تعداد نتایج: 57431  

Journal: :geopersia 2014
hossein shahi reza ghavami abolghasem kamkar rouhani hoshang asadi haroni

the analysis of geochemical data in frequency domain, as indicated in this research study, can provide new exploratory informationthat may not be exposed in spatial domain. to identify deep geochemical anomalies, sulfide zone and geochemical noises in dalli cu–au porphyry deposit, a new approach based on coupling fourier transform (ft) and principal component analysis (pca) has beenused. the re...

2001
Scott Heffernan Joshua Zuber

The Bonaparte project is a multi-year bedrock mapping program initiated by the British Columbia Geological Survey during the 2000 field season. The project is focused on Mesozoic arc volcanic and plutonic rocks of the Quesnel Terrane in the northeastern part of the Bonaparte Lake (92P) map sheet (Figure 1). This area encompasses a northwest-trending belt of high mineral potential that includes ...

In this research work, the frequency domain (FD) of surface geochemical data was analyzed to decompose the complex geochemical patterns related to different depths of the mineral deposit. In order to predict the variation in mineralization in the depth and identify the deep geochemical anomalies and blind mineralization using the surface geochemical data for the Dalli Cu-Au porphyry deposit, a ...

Habib Biabangard Javad Mehdipour Ghazi Mohammad Reza Ghasempour Rahim Dabiri

Both the Sistan Suture Zone of eastern Iran and the Nehbandan Fault contain Plio-Quaternary Nehbandan mafic lavas. Positive anomalies in the large ion lithophile elements (LILE) and negative anomalies in Nb (niobium) exist in these mafic lavas. This indicates the occurrence of subduction magmatism and post-collision volcanism. Petrologic and geochemical analyses distinguished two groups of lava...

2003
B. R. Hawke D. T. Blewett D. B. J. Bussey T. A. Giguere D. J. Lawrence P. G. Lucey G. A. Smith P. D. Spudis G. J. Taylor

Bussey, T. A. Giguere, D. J. Lawrence, P. G. Lucey, G. A. Smith, P. D. Spudis, and G. J. Taylor, Hawaii Institute of Geophysics and Planetology, University of Hawaii, 2525 Correa Rd., Honolulu, HI 96822, NovaSol, 1100 Alakea Street, 23 floor, Honolulu, HI 96813, John Hopkins University Applied Physics Laboratory, Laurel, MD 20723, Intergraph Corporation, 2828 Pa`a St., Honolulu, HI 96819, Los A...

2003
L. V. Potts T. Leftwich H. R. Kim H. Han R. B. von Frese

Introduction: The internal structures of terrestrial planets are commonly constrained by seismic data and geochemical considerations. We suggest that these constraints may be augmented by gravity drilling that focuses on interpreting satellite altitude free-air gravity observations for boundary undulations of the internal density layers related to mass flow. This approach involves separating th...

اعلمی‌نیا, زهرا, طباطبایی, سیدحسن, ماهرو بختیاری, نگار, منصوری اصفهانی, مهین,

Natanz, 1:100000 geological map, is located in northeast Isfahan, in the Urumieh-Dokhtar structural zone. This sheet is a prospective area for Cu, Zn and Pb mineralization. Spatial distribution of geochemical anomalies for mineralization was identified; using  pathfinder elements statistic method. The sample from catchment basin technique was applied on stream data. Then threshold elements were...

Journal: :زمین شناسی اقتصادی 0
مهدی هاشمی گهرویی بهنام شفیعی بافتی غلامحسین شمعانیان حسین تقی زاده

in order to assess the potential of copper mineralization and its associated elements in soltan meydan basaltic formation situated in the north of shahrud, the method of stream sediment and heavy mineral has been used. to achieve this aim, totally 68 samples of sediments (-80 mesh in particle size) and 6 samples of heavy minerals (-20 mesh in particle size) have been collected in an optimized n...

The Shahr-e-Babak district, as the studied area, is known for its large Cu resources. It is located in the southern side of the Central Iranian volcano–sedimentary complex in SE Iran. Shahr-e-Babak is currently facing a shortage of resources, and therefore, mineral exploration in the deeper and peripheral spaces has become a high priority in this area. This work aims to identify the geochemical...

Identification of geochemical anomalies is a significant step during regional geochemical exploration. In this matter, new techniques have been developed based on deep learning networks. These simple-structure-networks act like our brains on processing the data by simulating deep layers of thinking. In this paper, a hybrid compositional-deep learning technique was applied to identify the anomal...

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