scholarly journals Genesis and structure of the iron ore deposit of the Cape Iron Horn

Author(s):  
Е.П. Акпаева ◽  
Е.Д. Букреев

Статья посвящена железорудному месторождению, представляющему собой пласт оолитовых (бурожелезняковых) руд железа, который выходит на дневную поверхность на мысе Железный Рог на берегу Таманского полуострова. Мыс имеет протяженность 1,3 км с запада на восток и высоту 55 м над уровнем моря. Склон мыса разбит многочисленными трещинами из-за эрозионного воздействия ветра и морской воды, по которым происходит откалывание оползневых тел. Актуальность работы. Железорудное месторождение на мысе Железный Рог Таманского полуострова известно с конца 19 века, в настоящее время (с 1984 года) ему присвоен статус памятника природы, из-за чего добыча сырья запрещена на всей охраняемой территории, составляющей 19 га. Однако минералогия, палеонтология и особенности геологии данного месторождения изучены недостаточно. Таким образом, представленная статья призвана в какой-то степени восполнить этот пробел. Целью проведенных исследований является выявление особенностей геологического строения, минерагении и генезиса железорудного месторождения на мысе Железный Рог Таманского полуострова. Методы работы. Основу работы составляют образцы, отобранные авторами во время полевых работ на мысе Железный Рог с июня по июль 2021 года. При выполнении работы были описаны 15 образцов, а также идентифицированы палеонтологические находки и определен их примерный возраст. Результаты работ. Установлено, что бурые железняки залегают в толще серых глин железнорогской свиты (N1-2žr) и совпадают с ними по возрасту, что подтверждается палеонтологическими находками. В разрезе были найдены только те минералы, в состав которых входит железо: борнит, вивианит, лимонит, халькопирит. В работе проанализированы структурно-текстурные особенности пласта и вмещающих его пород, а также ассоциации найденных минералов, на основании чего сделаны выводы, что данный пласт железных руд относится к хемогенному осадочному типу месторождений, образованному из коллоидных растворов The article is devoted to an iron ore deposit, which is a layer of oolitic (brown limestone) iron ores, which comes to the surface during the day at Cape Iron Horn on the shore of the Taman Peninsula. The cape has a length of 1.3 km from west to east and a height of 55 m above sea level. The slope of the cape is broken by numerous cracks due to the erosive effects of wind and sea water, along which landslide bodies are chipping away. Relevance.The iron ore deposit at Cape Iron Horn of the Taman Peninsula has been known since the end of the 19th century, currently (since 1984) it has been given the status of a natural monument, which is why the extraction of raw materials is prohibited in the entire protected area of 19 hectares. However, mineralogy, paleontology and features of the geology of this deposit have not been studied enough. Thus, the presented article is intended to fill this gap to some extent. The Aim of the research is to identify the features of the geological structure, mineralogy and genesis of the iron ore deposit at Cape Iron Horn of the Taman Peninsula. Methods. The work is based on samples selected by the authors during field work at Cape Iron Horn from June to July 2021. During the work, 15 samples were described, as well as paleontological finds were identified and their approximate age was determined. Results.It has been established that brown ironstones lie in the thickness of gray clays of the Zheleznogorskaya formation (N1-2žr) and coincide with them in age, which is confirmed by paleontological findings. Only those minerals containing iron were found in the section: bornite, vivianite, limonite, chalcopyrite. The paper analyzes the structural and textural features of the formation and its host rocks, as well as the associations of the minerals found, on the basis of which it is concluded that this iron ore formation belongs to the chemogenic sedimentary type of deposits formed from colloidal solutions

2017 ◽  
Vol 22 ◽  
pp. 128-134
Author(s):  
Vasiliy Prokopenko ◽  
Olexandra Tymoshenko

Components of constantly renewed cycle of formation the investment on maintaining of productivity fixed assets of production and a mechanism of ensuring the environmental and economic efficiency during exploitation of iron ore deposit is substantiated. The methodic fundamentals in investing of expanded reproduction of fixed assets on the mining enterprise for increasing the completeness of using the operational stocks of ore raw materials have been developed. The possibility and advisability of investing in reproduction of fixed assets due to additional revenue from the sale of products made from rich ore are proved, which creates a profitable conditions for processing low-grade ore stocks. It is achieved through the expanded reproduction of fixed assets, that is able to maintain the pit capacity depending on the degree and time of its deepening. On the example of Poltava MPP it is estimated the possibility of industrial complexes to accumulate profits from operations for the extended reproduction of fixed assets. It is proved that the plant will be able to allocate the necessary investment funds if mineral ore reserves is processed with a reduction of its quality.


2019 ◽  
Vol 1 (2) ◽  
pp. 37-41
Author(s):  
Su Kangjie ◽  
Yuan Ya

2019 ◽  
Author(s):  
Bolorchimeg Nanzad ◽  
◽  
Marek Locmelis ◽  
Brandon James Sullivan ◽  
Ryan Mathur

1998 ◽  
Vol 34 (3) ◽  
pp. 209-216 ◽  
Author(s):  
L. A. Nazarova ◽  
L. A. Nazarov ◽  
A. V. Leont'ev

Author(s):  
B. Elevli ◽  
A. Demirci ◽  
A. Dogan ◽  
G. Onal

2020 ◽  
Vol 177 ◽  
pp. 02006
Author(s):  
Andrey Vedernikov ◽  
Pavel Zuev ◽  
Danila Grigoriev

Often in deposits developed by underground mining, the task is to control the state of the earth's surface within the mine field. And this problem is even more acute in the case of combined open-underground mining. The Goroblagodatskoe iron ore deposit has been developed by a combined method for more than 40 years. The article describes the methodology and results of applying the geophysical diagnostic method at a mining facility developed by a combined open-underground method - the spectral seismic profiling method (SSP). The application of this method is justified. This method has shown its sufficient efficiency in terms of time costs and sufficient reliability for local studies. The results of field and desk studies are obtained, an assessment of the nature of the object is given, which justifies the use of further measures for the safe development of the object.


2013 ◽  
Vol 15 ◽  
pp. 63-68
Author(s):  
Sujan Devkota ◽  
Lalu Prasad Paudel

The Bhainskati Formation of the Tansen Group in the Palpa area is known for hematite iron ore deposit for long time. A prominent band of hematite of about 1-2 m thickness and extending >5 km was identified in the upper part of the Bhainskati Formation in the present study. The band is repeated three times in the area by folding and faulting. Petrographic study shows that it is oolitic ironstone of sedimentary origin. Main minerals in the band are hematite, goethite, quartz, calcite, siderite and albite. Hematite content varies considerably among samples and occurs mainly as oolite and cement. The Bhainskati ironstone with its ferrous mineral assemblage and well-rounded texture of the ooids suggests shallow marine environment (prodeltaic to estuarine) with reduced clastic input. DOI: http://dx.doi.org/10.3126/bdg.v15i0.7418 Bulletin of the Department of Geology, Vol. 15, 2012, pp. 63-68


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