Hydrothermal barite deposits in Upper Cambrian-Lower Ordovician siliceous successions of southern Kazakhstan

Tolmacheva, T. Yu.; Ryazantsev, A. V.; Degtyarev, K. E.; Nikitina, O. I.

doi:10.1134/s1028334x14090347

Cited by 3 publications

(2 citation statements)

References 8 publications

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“…They coincide with outcrop numbers 89101 and 9706 of Tolmacheva et al (2001Tolmacheva et al ( , 2004 who studied conodont biostratigraphy in detail. Tolmacheva et al (2014) combined the two sections and named it the Pamyatonic Prirody section, but these two sections are described individually in the current study. The chert, named as the Burubaital Formation (Tolmacheva et al, 2001(Tolmacheva et al, , 2004, occurs as a block in a tectonic m elange named as either the Burultas or the Buruntau Tectonofacies Belt (Holmer et al, 2001).…”

Section: Lithology and Stratigrpahy Of The Studied Outcropmentioning

confidence: 99%

“…This speculation can also be applied to the case of the Darriwilian chert breccia in Kazakhstan, although fragments of basic volcanic material have yet to be discovered. Tolmacheva et al (2014) found 'siliceous sandstone' beds that consist of conodont elements in the lower Tremadocian and Dapingian chert of the Baritovyi Kar'er section and speculated that the conodont elements had been washed out from a topographic high. The age and the constituents of the chert breccia at locality 9706 are different from the 'siliceous sandstone', but it is reasonable to assume that there was also a topographic high located near the depositional basin of radiolarian chert of locality 9706, and that numerous down-flow current events occurring during this time frame could have delivered siliceous material to the site.…”

Section: Significance Of the Chert Brecciamentioning

confidence: 99%

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Petrography of Late Cambrian to Middle Ordovician radiolarian chert in Kazakhstan with special reference to the emergence of benthic animals in the pelagic realm

Kakuwa

Nikitina

2020

Sedimentology

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Upper Cambrian to Middle Ordovician radiolarian chert successions from Kazakhstan were studied to clarify the history of the emergence of benthic animals in ocean floor sediments. Radiolarian tests and clay were deposited for a period of 30 Myr without experiencing an influx of continent‐derived coarse clastic materials. Red, grey and black cherts of the Upper Cambrian to the upper mid‐Darriwilian are thinly laminated, and no trace of benthic animal activity is recognized in that time interval. Bioturbation structures and burrow traces in mid‐Darriwilian stage red chert in Kazakhstan suggest that benthic animals colonized the location where radiolarian chert formed, but that there was a significant delay in colonization when compared with similar reported occurrences in Australia and Canada.

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Section: Lithology and Stratigrpahy Of The Studied Outcropmentioning

confidence: 99%

Section: Significance Of the Chert Brecciamentioning

confidence: 99%

Petrography of Late Cambrian to Middle Ordovician radiolarian chert in Kazakhstan with special reference to the emergence of benthic animals in the pelagic realm

Kakuwa

Nikitina

2020

Sedimentology

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Ordovician conodont biostratigraphy, diversity and biogeography in deep-water radiolarian cherts from Kazakhstan

Tolmacheva

Degtyarev

Ryazantsev

2021

Palaeogeography, Palaeoclimatology, Palaeoecology

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World’s barite resources as critical raw material

Boyarko,

Bolsunovskaya

2023

Min.Sci.Technol. (RUS)

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The relevance of the work is connected with the status of barite as a critical mineral raw material, as accepted in most industrialized countries.Purpose: to study the dynamics of commodity flows (production, import, export, consumption) of barite throughout the countries, its world prices, sources of barite raw materials and the prospects for its production and consumption.Methods: statistical, graphic, logical.Results. The production of barite raw materials from 0,3 Mt/year in 1920s grew intensively and reached 8.0–9.6 Mt/year in the 2010. Initially, both the mining and processing of barite raw materials industries were located directly in the USA, Germany, Britain, Italy, and France. These countries accounted for over 90% of world production and 80–95% of world consumption. In the 1950s, a sharp increase in the consumption of barite as a weighting agent for drilling fluids began. This led to an increase in its production in large oil and gas producing countries (the USA, the USSR, Mexico, Canada), export flows (from Morocco and other countries), and cessation of exports from Germany, Britain and France. The share of international trade in barite also increased from 0,3–0,5 Mt/year in the 1950s to 4.2–6.0 Mt/year (55–70% of his income) in the 2010s. The cumulative world production of barite between 1920–2020 is expected to be 550 Mt. World barite resources in deposits prepared for exploitation are estimated at 740 Mt. The group of critical countries importing barite raw materials (imports over 50%) represents 38.8% of the GDP of the world economy (USA, European Union, Germany, Italy, Saudi Arabia, Canada, Kuwait, Norway, Oman, Algeria, Malaysia, Indonesia, UAE, Azerbaijan, Argentina). The group of countries exporting barite raw materials includes 31.0% of the GDP of the world economy (India, Morocco, China, Kazakhstan, Turkey, Iran, Laos, Mexico, Pakistan, Bulgaria. A decrease in the criticality of barite raw material supply is possible as a result in reducing consumption (Japan, France, Italy and the Czech Republic), increasing world barite production with the commissioning of new deposits, given the significant prepared resources of this raw material in Iran, Kazakhstan and Pakistan, as well as the search for new barite deposits, including chemogenic marine bottom sediments.

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Hydrothermal barite deposits in Upper Cambrian-Lower Ordovician siliceous successions of southern Kazakhstan

Cited by 3 publications

References 8 publications

Petrography of Late Cambrian to Middle Ordovician radiolarian chert in Kazakhstan with special reference to the emergence of benthic animals in the pelagic realm

Petrography of Late Cambrian to Middle Ordovician radiolarian chert in Kazakhstan with special reference to the emergence of benthic animals in the pelagic realm

Ordovician conodont biostratigraphy, diversity and biogeography in deep-water radiolarian cherts from Kazakhstan

World’s barite resources as critical raw material

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