Geological structure, ore-metasomatic and mineralogical geochemical zoning of Au-Mo-Cu porphyry Kyzyk-Chadr deposit, Tyva republic

2021 ◽  
pp. 57-76
Author(s):  
Anton Andreev ◽  
Mikhail Girfanov ◽  
Ivan Starostin ◽  
Olga Avilova ◽  
Sergey Kryazhev ◽  
...  
Keyword(s):  
Geological Structure ◽  
Geochemical Zoning ◽  
Altai Region ◽  
Tyva Republic ◽  
Ore District

Major geological structure features, ore and metasomatic composition, ore-metasomatic and isotope-geochemical zoning are considered for Kyzyk-Chadr deposit within the namesake ore cluster of Ozhinsky ore district, Altai-Sayany mineragenic province. A set of geological and prospecting evidence (elements of the deposit geological and prospecting model) was defined; it can be used to improve the efficiency of further exploration within Sayany-Altai region prospects.

Gold metallogeny of the East Tannu-Ola ore region, Tyva Republic

2021 ◽  
pp. 40-67
Author(s):  
Aleksander Chernykh ◽  
Alexey Shirobokov ◽  
Irina Arsentieva
Keyword(s):  
Geological Structure ◽  
Copper Ore ◽  
Gold Ore ◽  
Geological Features ◽  
Gold Silver ◽  
Ore Mineralogy ◽  
Tyva Republic ◽  
Gold Sulfide ◽  
Polymetallic Ore ◽  
Geochemical Specialization

The Elegest-Mezhegei, Aptara, and Shivilig forecasted gold ore clusters and the Kharalyg and Irbitei forecasted gold-silver-polymetallic ore clusters were distinguished within the East Tannu-Ola iron-copper-polymetallic-gold ore region, based on examination of historical and new geological, geochemical, and metallogenical data. Subsequently, the Urgailyg, Proezdnoe, and Chumurtuk forecasted gold ore fields were delineated within the Elegest-Mezhegei cluster; the Despen ore field was delineated within the Aptara ore cluster; and the Ovur-Ongesh ore field was outlined within the Shivilig cluster. In addition, the Ulug-Sailyg and Ak-Charinsk gold-molybdenum-copper ore fields were distinguished outside the ore clusters. The article summarizes the investigation history, geological-structural position, geological features, and geochemical specialization of the rocks of the East Tannu-Ola region. Descriptions of the ore clusters embrace peculiarities of their geological structure, ore mineralogy, and native gold, as well as parameters of the gold-sulfide-quartz, goldskarn, gold-containing polymetallic VMS, and porphyry molybdenum-copper mineralized zones. The conclusions highlight the metallogenic epochs and distribution regularities of the gold and gold-containing mineralization within the region studied.

scholarly journals Constraints of nonseismic geophysical data on the deep geological structure of the Benxi iron-ore district, Liaoning, China

2020 ◽  
Vol 12 (1) ◽  
pp. 887-903
Author(s):  
Chun-Hui Xu ◽  
Lin-Fu Xue ◽  
Chong Peng
Keyword(s):  
Iron Ore ◽  
Sedimentary Cover ◽  
Geological Structure ◽  
Ore Deposits ◽  
Geophysical Data ◽  
Liaoning Province ◽  
Magnetotelluric Data ◽  
Iron Ore Deposits ◽  
Iron Bearing ◽  
Ore District

AbstractThe Benxi area in Liaoning Province is one of the most important iron-ore districts in China. This study uses nonseismic geophysical data (in the form of gravity–magnetic–magnetotelluric data) and based on the section modeling method to model the deep, three-dimensional geological structure of the Benxi area. Based on the modeling results and deep geological structure characteristics, the Benxi area can be divided into three first-order deep geological tectonic units. A close relationship is between tectonic unit and iron-ore concentrations. First, high-quality iron-ore deposits occur within the tectonic boundary and sedimentary boundary zone of the Jiao–Liao–Ji Belt, reflects the protective effect of sedimentary cover on the iron-bearing formation. Second, enriched iron-ore deposits are mainly developed in Mesozoic granitic intrusion zone, reflects the hydrothermal leaching of silicon in host iron-bearing formations during magma intrusion. Thus, the findings of this study have important implications for future prospecting in the Benxi iron-ore district.

scholarly journals Geological structure of the Karabash ore district (Southern Urals)

LITOSFERA ◽  
2020 ◽  
Vol 20 (5) ◽  
pp. 682-689
Author(s):  
V. N. Anfilogov ◽  
L. Y. Kabanova ◽  
V. M. Ryzhkov ◽  
M. A. Korekina
Keyword(s):  
Cross Section ◽  
Southern Urals ◽  
Geological Structure ◽  
Ore Bodies ◽  
Geological Cross Section ◽  
Formation Conditions ◽  
Eastern Limb ◽  
Copper Pyrite ◽  
Host Rocks ◽  
Ore District

Research subject. The Karabash ore district is a unique structural zone in the Ural folded system, formed at the joint of the Magnitogorsk and Tagil depressions. The uniqueness of this zone is associated with its specific formation conditions: a Paleozoic copper pyrite belt with a width of about 8 km was squeezed between two blocks of ancient metamorphic rocks. This zone features a classic copper-pyrite deposit represented by steeply dipping ore bodies, which were initially characterized by a gentle dip. Elucidation of the primary geological structure and tectonic evolution of the district presents a relevant research task.Materials and methods. A geological cross section of the Karabash district was studied. Particular attention was paid to interactions between Paleozoic volcanic and sedimentary rocks and ultramafic bodies, whose age was determined by the method of zircon U–Pb dating.Results. The age of ultramafic bodies in the Karabash district was found to be 430–440 million years. Serpentinite blend (mélange) zones having a width of 60m were discovered in the sites of contact between ultramafites and host rocks. Regularities in the location of these zones in the eastern and western parts of the district make them suitable horizon markers for constructing a geological cross section of the Karabash ore district.Conclusions. It is established that the Karabash district is represented by a monocline synclinal fold formed by contraction of primary horizontal layers in the direction from east to west. The formation of the Zolotaya Gora golden deposit located in the eastern limb of the synclinal fold was associated with tectonic contraction processes.

The geological structure of the Emilia-Tuscany Northern Apennines and Alpi Apuane

2019 ◽  
Vol 11 (2.5) ◽  
pp. 1-78 ◽  
Author(s):  
Paolo Conti ◽  
Gianluca Cornamusini ◽  
Luigi Carmignani ◽  
Giancarlo Molli
Keyword(s):  
Geological Structure ◽  
Northern Apennines

FEATURES OF GEOLOGICAL STRUCTURE AND PETROLEUM OIL POTENTIAL OF VICHULOVSKAYA FORMATION WITHIN VOSTOCHNO-KAMENNYI DEPOSIT (WESTERN SIBERIA)

2018 ◽  
pp. 33-39
Author(s):  
R. R. Gabdullin ◽  
O. N. Biryukova ◽  
R. A. Akhmedov
Keyword(s):  
Western Siberia ◽  
Geological Structure ◽  
Test Results ◽  
Geological Information ◽  
Petroleum Oil

The analysis of geological and geophysical materials in order to study the peculiarities of the geological structure of the Vikulov Formation within the Vodorazdel license area was carried out. The presented factual material makes it possible to characterize the geological structure of the investigated area more informatively and for interpreting of seismic materials. The analysis of geological information (GIS and test results) confirms the approved water–oil contact (WOC) level in the investigated section of the deposit, which makes it possible to recalculate its reserves.

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