Conţinutul numărului revistei |
Articolul precedent |
Articolul urmator |
736 4 |
Ultima descărcare din IBN: 2024-03-16 16:14 |
SM ISO690:2012 POPUIAC, Aurelia. Aspecte generale din geochimia pământurilor rare din nord-estul Republicii Moldova
. In: Buletinul Institutului de Geologie şi Seismologie al AŞM, 2009, nr. 1, pp. 29-40. ISSN 1857-0046. |
EXPORT metadate: Google Scholar Crossref CERIF DataCite Dublin Core |
Buletinul Institutului de Geologie şi Seismologie al AŞM | |||||
Numărul 1 / 2009 / ISSN 1857-0046 | |||||
|
|||||
Pag. 29-40 | |||||
|
|||||
Descarcă PDF | |||||
Rezumat | |||||
Relatively high concentrations of Rare Earths (TR) had been found in the result of
geological researches carried out in the central region of the river Nistru basin, in the basis layers
of platform counterpane. On the base of correlative analysis between lanthanum, cerium,
ytterbium, yttrium, scandium, and minerals, in which composition are presented these elements of
TR-group, indicate that their origin may be due to the presence of monazite and zircon, in the
crystalline rocks of background and in the terrigenous layers of Vendiane age. In the same time,
here the problem of formation some mechanic aureoles of nominalization minerals, and of course,
the some considerable accumulation of elements from TR-group, have not been solved. In the
target of localization of geochemical anomalies must to study minutely migration conditions of
these elements under different influence of geological processes in diverse lithlogical formations
in the nistreane region. Thus, necessary premises for discovery of some possible deposits of
monazite and zircon, rich in TR-elements which bring an actually direct result, will be established.
|
|||||
|