scholarly journals About new promising fi elds and ore occurrences of the southern slope of Greater Caucasus (Azerbaijan)

2021 ◽  
Author(s):  
Э.Ф. Ганбарова
Keyword(s):  
Ore Deposits ◽  
Southern Slope ◽  
Greater Caucasus ◽  
Clay Shales ◽  
Drilling Operations ◽  
Age Range ◽  
Structural Positions

Статья посвящена перспективности новых выявленных рудопроявле- ний азербайджанской части Большого Кавказа. Установлено, что как колчеданно-по- лиметаллические, так и медно-пирротиновые и серно-колчеданные руды различных месторождений и рудопроявлений занимают весьма различные стратиграфические уровни разреза, начиная от тоара до верхнего аалена включительно. Весь этот воз- растной интервал, по существу, состоит из чередующихся слоев глинистых сланцев аргиллитов, песчаников и алевро-песчаников. Геолого-структурные позиции и резуль- таты опробования позволяют отнести эти участки к перспективным и считать их объектами дальнейшего изучения комплексом геолого-геохимических и геофизи- ческих исследований и буровых работ. Приводится краткое описание наиболее инте- ресных и более детально изученных проявлений рудных месторождений и проявлений. The article is devoted to the prospects of new identifi ed ore occurrences in the Azerbaijanian part of the Greater Caucasus. It is established that both pyrrhic-polymetallic and copper-pyrrhotite and sulfur-pyrrhotite ores of various deposits and ore occurrences occupy very different stratigraphic levels of the section, starting from the Toar to the upper Aalen inclusive – and it is important to note that this entire age range essentially consists of alternating layers of clay shales, mudstones, sandstones, and siltstones. The geological and structural positions and the results of testing allow us to classify these areas as promising and consider them objects of further study by a complex of geological, geochemical and geophysical studies and drilling operations. A brief description of the most interesting and more thoroughly studied manifestations of ore deposits and manifestations is given.

Study of factors influencing the transformation of mountain geosystems on the southern slope of the Greater Caucasus

2021 ◽  
Vol 07 (02) ◽  
pp. 75-77
Author(s):  
Zeynəb Zəkəriyyə qızı Qurbanzadə ◽  
Keyword(s):  
Key Words ◽  
Ecological Study ◽  
Southern Slope ◽  
The South ◽  
Anthropogenic Changes ◽  
Greater Caucasus ◽  
Factors Influencing ◽  
South Slope

In the article touched such issues as anthropogenic changes in the landscapes of the south slope of the Greater Caucasus, ecological study of enviromental impact, landscape optimization. There are also suggestions for more efficient use of rapidly growing anthropogenically affected landscapes. Key words: anthropogenic changes, Greater Caucasus, south slope, optimization, landscape Azərbaycanın şimal-şərq hissələrini əhatə edən təbii iqlim şəraiti, heyvanat və bitki aləminə, turizm və istirahət üçün əvəzolunmaz məziyyətlərinə, həm də zəngin yeraltı sərvətlərinə görə respublikamızın nadir ərazilərindən biri olan Böyük Qafqazın cənub yamacı getdikcə daha da intensivləşən antropogen təsirlərə məruz qalan bir tədqiqat obyekti kimi nəzəri cəlb edir.

Drilling Cutting Analysis to Assist Drilling Performance Evaluation in Hard Rock Hole Widening Operation

2020 ◽  
Author(s):  
Daiyan Ahmed ◽  
Yingjian Xiao ◽  
Jeronimo de Moura ◽  
Stephen D. Butt
Keyword(s):  
Performance Enhancement ◽  
Ore Deposits ◽  
Drilling Process ◽  
Rotary Drilling ◽  
Pilot Hole ◽  
Drilling Rig ◽  
Drilling Performance ◽  
Drilling Parameters ◽  
Weight On Bit ◽  
Drilling Operations

Abstract Optimum production from vein-type deposits requires the Narrow Vein Mining (NVM) process where excavation is accomplished by drilling larger diameter holes. To drill into the veins to successfully extract the ore deposits, a conventional rotary drilling rig is mounted on the ground. These operations are generally conducted by drilling a pilot hole in a narrow vein followed by a hole widening operation. Initially, a pilot hole is drilled for exploration purposes, to guide the larger diameter hole and to control the trajectory, and the next step in the excavation is progressed by hole widening operation. Drilling cutting properties, such as particle size distribution, volume, and shape may expose a significant drilling problem or may provide justification for performance enhancement decisions. In this study, a laboratory hole widening drilling process performance was evaluated by drilling cutting analysis. Drill-off Tests (DOT) were conducted in the Drilling Technology Laboratory (DTL) by dint of a Small Drilling Simulator (SDS) to generate the drilling parameters and to collect the cuttings. Different drilling operations were assessed based on Rate of Penetration (ROP), Weight on Bit (WOB), Rotation per Minute (RPM), Mechanical Specific Energy (MSE) and Drilling Efficiency (DE). A conducive schedule for achieving the objectives was developed, in addition to cuttings for further interpretation. A comprehensive study for the hole widening operation was conducted by involving intensive drilling cutting analysis, drilling parameters, and drilling performance leading to recommendations for full-scale drilling operations.

Complex geomorphological characteristics and relief geodynamic features of morphostructural units of the southern slope of the Greater Caucasus

2021 ◽  
Vol 07 (02) ◽  
pp. 61-63
Author(s):  
Qüdrət Tərlan oğlu Məmmədli ◽  
Keyword(s):  
Key Words ◽  
Geological Structure ◽  
Southern Slope ◽  
Greater Caucasus ◽  
River Valleys ◽  
Geomorphological Analysis

According to the modern geodynamic concept of lithosphere pans, the geological structure of the Greater Caucasus in the system of geosynclinal and platform regions is very complex. This situation, along with different conditions for the geomorphological development of the area, led to the formation of a complex and diverse relief with different ridges, massifs, inland basins, river valleys and other small morphostructures and morphosculptures. Key words: Greater Caucasus, southern part of Greater Caucasus, southern slopes, mosfostructure, geomorphological analysis, relief forms

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