Wyniki wyszukiwania - Biblioteka Nauki

Nowa wersja platformy, zawierająca wyłącznie zasoby pełnotekstowe, jest już dostępna.
Przejdź na https://bibliotekanauki.pl

Ograniczanie wyników

2 Przegląd Geologiczny

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Sortuj według:

Ogranicz wyniki do:

Dolnokredowe fosforyty z NE obrzeżenia Gór Świętokrzyskichjako potencjalne źródło REE : badania wstępne

100%

Zglinicki K. , Szamałek K. , Salwa S. , Górska I.

tom Vol. 68, nr 7

566--576

The PGI-NRI conducts geological research on the documentation of occurrence of REE deposits in Poland. The deposit potential may be related to the formation of Lower Cretaceous phosphorites from the NE margin of the Holy Cross Mountains. Two phosphorite deposits were exploited in this region in the past: Chałupki (1936-1959) and Annopol (1952-1970). From the Chałupki old mine dump, 34 samples of fine-grained sand were collected. The pseudonodules were extracted from this sand. The sand from the dump is composed of quartz, francolite (carbonate-rich fluorapatite) Ca5(PO4,CO3)3F, illite and a small amount of feldspar, calcite and heavy minerals. The heavy fraction is composed of zircon, monazite and rutile. Sand has a low content of REE ranging from 47.56 to 185.26ppm. The phosphorite pseudonodules underwent a detailed mineralogical and chemical analysis. They are composed of francolite, quartz, illite, glauconite, feldspar and minor heavy minerals: zircon and monazite. For the first time, the whole spectrum of REE was analysed in pseudonodules. The I.REE content in the nodules ranges from 177.37 to 354.18ppm. This level of REE indicates a serious need for further exploration and research of phosphorite pseudonodules within the whole Lower Cretaceous phosphorite series and moreover, also in the Eocene phosphorite formation in the Lublin region.

Ewolucja metodologii, zakresu i znaczenia Bilansu Perspektywicznych Zasobów Kopalin Polski

88%

Szamałek K. , Szuflicki M. , Górska I. , Zglinicki K. , Mazurek S.

Przegląd Geologiczny

2021

tom Vol. 69, nr 8

482--492

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.