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Ewolucja metodologii, zakresu i znaczenia Bilansu Perspektywicznych Zasobów Kopalin Polski

Szamałek Krzysztof, Szuflicki Marcin, Górska Irena, Zglinicki Karol, Mazurek Sławomir

Przegląd Geologiczny

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2021

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Vol. 69, nr 8

482--492

EN

For 60 years, the Polish Geological Institute as a geological survey has been preparing special studies on prospective mineral resources. During this time the title, form, content, model of presented data have been changed. Currently, the study is edited as “Balance of Prospective Mineral Resources of Poland”. The knowledge about mineral resources has a fundamental importance for the national mineral security and rational decisions concerning the country’s economic strategy. The authors present the evolution of methodology, scope and significance of the “Balance...”. The last edition of “Balance...” in 2020 is a comprehensive scientific monograph (citing over 1700 published and unpublished sources) containing information about over 50 major minerals, as well as marine minerals from Baltic Sea.

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The Cyclops Mountains Massif (New Guinea, Indonesia) as the provenance area for metal-bearing shelf sediments from the Carolinian Sea

Zglinicki Karol, Szamałek Krzysztof

Geological Quarterly

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2020

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Vol. 64, No. 2

480--491

EN

In 2009, on the initiative of PT Halmahera Perkasa the “Jayapura” exploration project was carried out in Indonesia. As part of this project, exploration of the sea bottom in the northern coast of New Guinea was carried out over a distance of ~45 km. The suction dredge collected 59 samples of loose sediments from the shelf bottom surface of the Carolinian Sea (to a depth of 60 m below the sea-floor). The extracted samples are usually poorly and moderately sorted sands (5 samples), medium-grained sands (21 samples), and fine-grained sands (33 samples). The sand composition shows, among others, a wide spectrum of heavy minerals of ultra-mafic (Cr-garnet, chromium spinel, Mg-olivine) and metamorphic (epidote, clinochlore, amphibole, titanite) origin. The content of heavy minerals in the sediments is up to 54.77 wt.%. It was found that the source of heavy fraction in the eastern and western parts of the coast is the rock of the ophiolite series building the Cyclops Mountains Massif. The mineral composition of sediments from the central coastal zone corresponds to the types of rocks building the metamorphic core of the Cyclops Mountains (amphibolite, gneisses, andesite). Three mineral-geochemical subprovinces were determined on the basis of analyses of heavy mineral decomposition and chemical analyses of sediments. Shelf sediment from the eastern part of the coast is characterized by an increased content of strategic metals (Ni up to 3560, W up to 3130 and Co up to 142 ppm). In the central zone, the V content increases up to 244 ppm and the Ag content up to 5 ppm. In the shelf sediments there is a strong depletion in the REE.

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Użytkowanie górnicze vs użytkowanie geologiczne : aspekty teoretyczne i praktyczne

Szamałek Krzysztof, Zglinicki Karol

Przegląd Geologiczny

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2019

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Vol. 67, nr 11

874--877

EN

The Polish Geological and Mining Law (The Act) determines two types of mineral deposit ownership: State Treasury Ownership (STO) and Land Ownership (LO). The Act introduces the term - mining usufruct (term adequate to mining lease) that concerns extracting of STO or geological activity in rock mass belonging to the State. The Minister of Environment, on behalf of the State and with the exclusion of other persons, can benefit from the subject of mining properties or dispose of its right to STO exclusively by establishing mining usufruct. The establishment of mining usufruct shall take place in the form of a written agreement between the State and entrepreneur and requires paying predetermined remuneration to the State. The authors conclude that the Act contains imprecise regulations concerning the lower limit of land property. This causes numerous difficulties in recognizing which parts of land property belong to the State Treasury and which belong to the land owner. The authors suggest that it is necessary to differentiate in the Act two kinds of activities and consequently two types of agreement between the State and entrepreneur: 1) agreement of mining usufruct, and 2) agreement of geological usufruct.

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The appearance of copper-bearing mineralization in the region of Muang Xay, Laos

Zglinicki K., Szamałek K., Pilaszkiewicz M.

Biuletyn Państwowego Instytutu Geologicznego

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2018

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nr 472

303--310

EN

Geotectonic events in the Indochina Peninsula, associatted with the Indosinian orogeny between the Paleozoic and Mesozoic, has created many fold structures and fault areas oin the territory of Laos. Magmatic processes and Earth’s crust deformation enabled arising of rich Cu mineralization. A prospective area for the occurrence of Cu, Ag and Au minerals is the folded region on Muang Xay, northern Laos. The main purpose of geological research of the Muang Xay area was the recognition of chemical and mineralogical composition of rock samples and the evaluation of the area of potential geological resources. During field reconnaissance in 2018, the rock samples were taken from an abandoned mine. It was concluded that primary rocks suffered intense Na-metasomatic processes, preserving primary copper sulphides – bornite, chalcocite and covellite. The content of Cu is up to 49.64% and Ag up to 119.5 ppm. As a result of metasomatism of igneous rocks, diorite or andesite types – albitite was formed. Albitite is composed of medium-grained albite, Mg-chlorite and Cu-carbonates. The prospective research shows that the Muang Xay region has a high potential of metalliferous deposits.

PL

Wydarzenia geotektoniczne na półwyspie Indochińskim, związane z orogenezą indochińską, na przełomie paleozoiku i mezozoiku, doprowadziły do powstania licznych struktur fałdowych oraz stref uskokowych na terenie Laosu. Procesy magmatyczne oraz deformacje skorupy ziemskiej umożliwiły powstanie bogatej mineralizacji miedzionośnej. Obszarem perspektywicznym występowania minerałów miedzi, srebra oraz złota jest region fałdowy Muang Xay na terenie północnego Laosu. Badania na górzystym obszarze Muang Xay przeprowadzono w celu określenia składu mineralnego oraz chemicznego skał, a także oceny perspektyw złożowych regionu. W czasie prac terenowych w 2018 r. opróbowano nieczynne wyrobiska górnicze. Ustalono, że skały pierwotne ulegały intensywnym procesom Na-metasomatozy z zachowaniem obecności pierwotnych siarczków miedzi – bornitu, chalkozynu, kowelinu. Zawartość Cu w badanych próbkach wynosi do 49,64%, natomiast Ag do 119,5 ppm. W wyniku procesów metasomatozy skał magmowych typu diorytu lub andezytu powstały albityty zbudowane ze średnioziarnistego albitu, magnezowego chlorytu oraz węglanów miedzi. Przeprowadzone badania prospekcyjne wskazują na wysoki potencjał złóż metalonośnych w regionie Muang Xay.