DONJOPALEOGENSKI BOKSITI VINIŠĆA, UGLJANA, SILBE I OLIBA
Item
Title (Dublin Core)
hrv
DONJOPALEOGENSKI BOKSITI VINIŠĆA, UGLJANA, SILBE I OLIBA
eng
LOWER PALEOGENE BAUXITES OF VINIŠĆE, UGLJAN, SILBA AND OLIB
Description (Dublin Core)
hrv
Nalazišta donjopaleogenskih boksita na proučavanom području su manja i rijetka. U tim boksitima i boksitičnim vapnencima prevladavaju oolitne strukture i hemitni sastav kao u ostalih donjopaleogenskih boksita Dinarida s tom razlikom, što ovi boksiti imaju češće povećan sadržaj kaolinita. Boksiti su nastali za vrijeme emerzije koja je trajala od konca senona do gornjeg paleocena - donjeg eocena.
Istraživani boksiti imaju povišen sadržaj Si02, a razlikuju se međusobno po sadržaju Al2O3 i mikroelemenata. Također se razlikuju po stupnju sfernosti ooida. a stupanj zaobljenosti im je podjednak.
Na temelju dosadašnjih istraživanja može se zaključiti da su najpovoljniji uvjeti za nastanak donjopaleogenskih boksita bili u Istri i Hercegovini. Nešto nepovoljniji uvjeti bili su na području današnjih otoka sjevernog Jadrana, a najnepovoljniji na južnom Primorju i sjever¬noj Dalmaciji, kao primjeru ovdje opisanih donjopaleogenskih nalazišta.
Istraživani boksiti imaju povišen sadržaj Si02, a razlikuju se međusobno po sadržaju Al2O3 i mikroelemenata. Također se razlikuju po stupnju sfernosti ooida. a stupanj zaobljenosti im je podjednak.
Na temelju dosadašnjih istraživanja može se zaključiti da su najpovoljniji uvjeti za nastanak donjopaleogenskih boksita bili u Istri i Hercegovini. Nešto nepovoljniji uvjeti bili su na području današnjih otoka sjevernog Jadrana, a najnepovoljniji na južnom Primorju i sjever¬noj Dalmaciji, kao primjeru ovdje opisanih donjopaleogenskih nalazišta.
eng
Bauxite Deposits of Lower Paleogene in the studied area are minor and rare. In these bauxites and bauxitic limestones oolitic textures and bochmite composition prevail as in other Lower Paleogene bauxites of Dinarides, however, with a difference that these bauxites more frequently have increased contents of kaolinite. Bauxites were created during the emergence wich lasted from the end of Senonian to the Upper Paleocene — Lower Eocene.
The analyzed bauxites have the increased contents of silica and they differ in regard to the contents of Al2O3 and microelements. There are differences also in the degree of sphericity of ooides, while the degree of roundness is more or less equal.
On the basis of investigations so far, it may be concluded that the most advantageous conditions for the formation of Lower Paleogene bauxites have been in Istria and Herzegovina. Less favourable condi¬tions have been in the area of today's islands of the Northern Adriatic. The most unfavourable were the areas of Southern Primorje and Northern Dalmatia, as shown in the example of Lower Paleogene deposits described here.
The analyzed bauxites have the increased contents of silica and they differ in regard to the contents of Al2O3 and microelements. There are differences also in the degree of sphericity of ooides, while the degree of roundness is more or less equal.
On the basis of investigations so far, it may be concluded that the most advantageous conditions for the formation of Lower Paleogene bauxites have been in Istria and Herzegovina. Less favourable condi¬tions have been in the area of today's islands of the Northern Adriatic. The most unfavourable were the areas of Southern Primorje and Northern Dalmatia, as shown in the example of Lower Paleogene deposits described here.
Creator (Dublin Core)
Šebečić, Berislav
Šinkovec, Boris
Trutin, Mladen
Subject (Dublin Core)
hrv
boksit;boksitični vapnenci;donji paleogen;gornja kreda
eng
bauxite;bauxitic limestones;Lower Paleogene;Upper Cretaccous
Publisher (Dublin Core)
Faculty of Mining, Geology and Petroleum Engineering University of Zagreb
Date (Dublin Core)
1999
Type (Dublin Core)
text
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Format (Dublin Core)
application/pdf
Identifier (Dublin Core)
https://hrcak.srce.hr/13429
hrv
https://hrcak.srce.hr/file/20594
Source (Dublin Core)
Rudarsko-geološko-naftni zbornik
ISSN 1849-0409 (Online)
Volume 11
Issue 1
Language (Dublin Core)
hrv
Rights (Dublin Core)
info:eu-repo/semantics/openAccess
The author and publisher rights are visible during the submission process, and ethical codex is available at http://hrcak.srce.hr/ojs/index.php/rgn/about/editorialPolicies#custom-0 .
The Bulletin is open access (OA, green model, CC-BY) journal what means that electronic versions of articles are accessible to readers, without any fees or registration.When use, please refer to Creative Commons license (BY type, http://creativecommons.org/licenses/by/4.0/ ).
Publisher copyright policies & self-archiving is also described at Sherpa organisation web (RoMEO service) based at the University of Nottingham (http://www.sherpa.ac.uk/romeo/pub/2374/).
All volumes of the Bulletin (from 1989) are available at Hrčak journal pages (http://hrcak.srce.hr/rgn-zbornik?lang=en).
The Bulletin is open access (OA, green model, CC-BY) journal what means that electronic versions of articles are accessible to readers, without any fees or registration.When use, please refer to Creative Commons license (BY type, http://creativecommons.org/licenses/by/4.0/ ).
Publisher copyright policies & self-archiving is also described at Sherpa organisation web (RoMEO service) based at the University of Nottingham (http://www.sherpa.ac.uk/romeo/pub/2374/).
All volumes of the Bulletin (from 1989) are available at Hrčak journal pages (http://hrcak.srce.hr/rgn-zbornik?lang=en).