Pilotażowe Badania Pierwiastków Ziem Rzadkich W Strefie Kontaktu Bloku Małopolskiego Z Blokiem Górnośląskim

Mikulski, Stanisław Z.; Markowiak, Marek; Sadłowska, Katarzyna; Chmielewski, Andrzej; Zieliński, Grzegorz

doi:10.5604/08676143.1202440

Cited by 3 publications

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“…In this article we present the pilot REE results in several samples of marine sands collected from the Polish coast of the Baltic Sea and sandbanks of the southern Baltic that were made in PIG-PIB under the theme of Mikulski et al (2014). Other data in terms of REE distribution in other geological areas in Poland are presented in separate articles (Mikulski et al 2015;Brański and Mikulski 2016;Oszczepalski et al 2016).…”

Section: Introductionmentioning

confidence: 99%

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Rare earth elements pilot studies of the baltic marine sands enriched in heavy minerals

Mikulski¹,

Kramarska²,

Zieliński³

2016

Gospodarka Surowcami Mineralnymi

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The carried out pilot work on the concentration of rare earth elements (REE) in the Baltic marine sands from the Odra and Słupsk Banks showed that in some places their accumulations are quite interesting in terms of the placer deposits and may be the subject of an interesting prospecting project. The results of ICP-MS and electron microprobe (CAMECA SX-100) investigation confirm the close relationship of REE concentration to heavy minerals content in the sediments of marine sands. It is indicated, in addition to monazite, as a primary mineral carrier of rare earth elements. The vast preponderance of light REE is noted in the samples of heavy mineral concentrates from the Odra and Słupsk Banks as well as in the beach sand sample from the Hel Peninsula. The highest concentrations are achieved mainly by cerium and almost two times less by lanthanum. The total REE in the most interesting considered samples range from c.a. 0.14% (trench on the beach) to 0.9% (heavy minerals concentrate from the Odra Bank). The high contents of REE are accompanied by a high concentration of Th (900-150 ppm). Neodymium (0.1-0.17% Nd), whose presence is associated with the presence of pyrochlore and Nb-rutile also appears in the heavy minerals concentrate samples. It is necessary to systematically identify heavy minerals resources in the Baltic sands. More detailed research should cover the prospective areas situated to the North-East from the documented placer fields of the Odra Bank, as well as tentatively identified areas of the Słupsk Bank and submarine paleo-slope of the Hel Peninsula.

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Section: Introductionmentioning

confidence: 99%

“…Other data in terms of REE distribution in other geological areas in Poland are presented in separate articles (Mikulski et al 2015;Brański and Mikulski 2016;Oszczepalski et al 2016). …”

Section: Introductionmentioning

confidence: 99%

Rare earth elements pilot studies of the baltic marine sands enriched in heavy minerals

Mikulski¹,

Kramarska²,

Zieliński³

2016

Gospodarka Surowcami Mineralnymi

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Carboniferous–Permian magmatism and Mo–Cu (W) mineralization in the contact zone between the Małopolska and Upper Silesia Blocks (south Poland): an echo of the Baltica–Gondwana collision

Mikulski

Williams

Markowiak

2019

Int J Earth Sci (Geol Rundsch)

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The Kraków-Lubliniec tectonic zone (KLFZ) in southern Poland, which divides the Małopolska Block (MB) from the Upper Silesia Block (USB), is a portion of the SW margin of the Trans-European Suture Zone. Zircon U-Pb dating of a variety of igneous rocks (granodiorites, dacites, lamprophyre and diabase) from the subsurface Kraków-Lubliniec igneous belt along the KLFZ shows that magmatism spanned within a narrow time period (ca. 10 Ma) between 303.8 ± 2.2 and 292.7 ± 4.9 Ma. The earlier magmatism (303.8 ± 2.2-294.7 ± 2.3 Ma) was felsic calc-alkaline, and the contemporaneous or/and slightly later alkaline volcanism (294.4 ± 4.9-292.7 ± 4.9 Ma) was of mafic-intermediate composition. The felsic rocks (granitoids and dacitoids) are weakly peraluminous, medium to high K, moderate Mg# (0.39-0.46), weakly evolved and I-type rocks. Due to the intensive development of hydrothermal alteration, these rocks are commonly strongly altered and locally mineralized by porphyry and other types of Mo-Cu (W) ores that are closely related to the felsic magmatism in space and time. The zircon U-Pb dating yielded ages which are similar to the previously measured Re-Os ages of molybdenites from the KLFZ. Felsic magmatism at the Myszków Mo-Cu-W deposit yielded ages in the range 301.0 ± 2.1-295.9 ± 2.9 Ma. The youngest rocks dated are from the Mysłów area in the USB-volcanic alkaline rocks (lamprophyre and diabase) of shoshonitic character, with low Mg# (0.49 and 0.69, respectively) and Ni contents (< 62 ppm), indicative of a relatively juvenile magma composition. Inherited zircon cores, remnant detrital zircon from a sediment component in the source rocks, were dated to be ranging from ca. 2775 to 575 Ma. Inheritance of ca. 600 Ma (Cadomian basement) and ca. 1.40 Ga (Mesoproterozoic) is common in the rocks from both blocks, but those from the MB contain additional inheritance with dates of 2.78-2.67 and 2.05-1.92 Ga, both ages characteristic of zircon from the Svecofennian of northern Europe (Baltica). The inherited zircon from the youngest alkaline rocks provided evidence for Mesoproterozoic (ca. 1.55-1.44 and 1.09 Ga) and Palaeoproterozoic (1.96 Ga) thermal events in the USB, and its possible affinity to Avalonian cratonic crust as a source for its igneous protolith. U-Pb isotopic studies of zircons from KL igneous belt indicate its inherited signatures from the crustal sources and magma emplacements during the KLFZ wrenching which allowed channels and room for magma emplacement along the MB and USB in upper Carboniferous-lower Permian on SW margin of the East-European Craton. Mo-Cu (W) ore mineralization, associated with the ~ 300 Ma felsic magmatism, represents rather the product of decompression melting induced in the areas of decreased pressure, undergone in the regional wrench fault zones than the classic Mo-Cu porphyry-style mineralization.

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Możliwości identyfikacji pierwiastków ziem rzadkich za pomocą podręcznego spektrometru XRF w rdzeniach wiertniczych z syenitowego masywu Ełku (otwór Ełk IG 3, NE Polska)

Pańczyk

Bazarnik

Giro

2016

Biuletyn Państwowego Instytutu Geologicznego

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Pilotażowe Badania Pierwiastków Ziem Rzadkich W Strefie Kontaktu Bloku Małopolskiego Z Blokiem Górnośląskim

Cited by 3 publications

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Rare earth elements pilot studies of the baltic marine sands enriched in heavy minerals

Rare earth elements pilot studies of the baltic marine sands enriched in heavy minerals

Carboniferous–Permian magmatism and Mo–Cu (W) mineralization in the contact zone between the Małopolska and Upper Silesia Blocks (south Poland): an echo of the Baltica–Gondwana collision

Możliwości identyfikacji pierwiastków ziem rzadkich za pomocą podręcznego spektrometru XRF w rdzeniach wiertniczych z syenitowego masywu Ełku (otwór Ełk IG 3, NE Polska)

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