Lamproites and kimberlites in China and the genesis of diamond deposit

1998 ◽  
Vol 41 (S1) ◽  
pp. 54-92 ◽  
Author(s):  
Houjun Mei ◽  
Chunjing Tang ◽  
Sunrong Li ◽  
Yongming Li ◽  
Xingchun Zhang ◽  
...  
Keyword(s):  
Diamond Deposit

scholarly journals Modeling Changes in the Composition of River Water with Discharged Wastewater: A Case Study in NW Russia

Water ◽  
2022 ◽  
Vol 14 (2) ◽  
pp. 165
Author(s):  
Alexander I. Malov ◽  
Evgeniya S. Sidkina ◽  
Mikhail V. Mironenko ◽  
Alexey S. Tyshov ◽  
Elena V. Cherkasova
Keyword(s):  
Surface Water ◽  
Chemical Elements ◽  
Conservation Status ◽  
Simplex Algorithm ◽  
Drainage Water ◽  
Discharge Zone ◽  
Mining Operations ◽  
Diamond Deposit ◽  
Further Development

The technogenic impact of the development of the Lomonosov diamond deposit is associated with the discharge of quarry and drainage water into the river, which has a special conservation status. Earlier studies on the composition of bottom sediments showed that there are signs of increased accumulation of heavy metals and radionuclides at wastewater discharge sites. The purpose of this work was to predict changes in the composition of surface water and bottom sediment in the river during the further development of mining operations with brackish and salty water captured by drainage systems, the presence of which was established in the zone of their future influence. For this, a simulation of changes in the composition of the water in the river was carried out using the GEOCHEQ software package by minimizing the free energy of the system using a convex simplex algorithm. It was found that the maximum salinity of surface water can reach 1.51 g/L. In this case, the MPC of Cl−, Na+, SO42−, Mg2+, Sr, V, and U can be exceeded for fishery watercourses. The genetic basis of the accumulation of these components in solutions for mixing was considered. According to the calculations, when about 5000 m3/h of drainage water is discharge d into the river, the mass of precipitated chemical elements will be 56–191 t/h, including up to 2.1 t/h of iron; therefore, accumulation in the discharge zone must be controlled.

Geology and Development of the Lomonsov Diamond Deposit, Northwestern Russia

2017 ◽  
Vol 53 (2) ◽  
pp. 144-167 ◽  
Author(s):  
Karen V. Smith ◽  
Russell Shor
Keyword(s):  
Diamond Deposit ◽  
Northwestern Russia

Discovery and Mining of the Argyle Diamond Deposit, Australia

2001 ◽  
Vol 37 (1) ◽  
pp. 26-41 ◽  
Author(s):  
James E. Shigley ◽  
John Chapman ◽  
Robyn K. Ellison
Keyword(s):  
Diamond Deposit

Women at the dawn of diamond discovery in Siberia or how two women discovered the Siberian diamond province

2020 ◽  
pp. SP506-2020-11
Author(s):  
Ekaterina S. Kiseeva ◽  
Rishat N. Yuzmukhametov
Keyword(s):  
Soviet Union ◽  
Russian Literature ◽  
Kimberlite Pipe ◽  
Diamond Deposit ◽  
Diamond Exploration ◽  
Significant Events ◽  
The Soviet Union ◽  
The Government ◽  
Diamond Province

AbstractExploration for diamonds in the Soviet Union started in the 1940s; however, it was not until the beginning of 1950s that the government acknowledged a strong need for locally mined diamonds. In this paper, based on publications from Russian literature, we recount a story of two female geologists, Larisa Popugaeva and Natalia Sarsadskhih.Natalia was the head of the mineralogical laboratory who implemented a new methodology to search for mineral indicators of primary diamond deposits. Larisa was a young geologist who joined Natalia's team in 1953.The work of these women led to the discovery, in 1954, of the first diamond deposit in the country – the kimberlite pipe ‘Zarnitsa’. In 1954, Natalia was unable to go into the field and, therefore, the discovery was made by Larisa. Credit for this discovery, however, was claimed by the higher officials from the Amakinskaya expedition, one of the largest diamond exploration organizations in the country. Multiple efforts to restore justice did not succeed, with Larisa only being awarded the title of the ‘Discoverer’ in 1970 and Natalia not until 1990. This paper provides a description of Larisa's and Natalia's lives up until the discovery of Zarnitsa, and a few significant events after.

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