C−O Stable Isotopes Geochemistry of Tunisian Nonsulfide Zinc Deposits: A First Look

dc.contributor.authorGarnit, Hechmi
dc.contributor.authorBoni, Maria
dc.contributor.authorBuongiovanni, Giuliana
dc.contributor.authorArfè, Giuseppe
dc.contributor.authorMondillo, Nicola
dc.contributor.authorJoachimski, Michael
dc.contributor.authorBouhlel, Salah
dc.contributor.authorBalassone, Giuseppina
dc.date.accessioned2019-08-13
dc.date.available2023-10-11T14:32:50Z
dc.date.created2018
dc.date.issued2019-08-13
dc.description.abstractA preliminary C–O stable isotopes geochemical characterization of several nonsulfide Zn-Pb Tunisian deposits has been carried out, in order to evidence the possible differences in their genesis. Nonsulfide ores were sampled from the following deposits: Ain Allegua, Jebel Ben Amara, Jebel Hallouf (Nappe Zone), Djebba, Bou Grine, Bou Jaber, Fedj el Adoum, Slata Fer (Diapir Zone), Jebel Ressas, Jebel Azreg, Mecella (North South Axis Zone), Jebel Trozza, Sekarna (Graben Zone). After mineralogical investigation of selected specimens, the C–O stable isotopic study was carried out on smithsonite, hydrozincite, cerussite and calcite. The data have shown that all the carbonate generations in the oxidized zones of Ain Allegua and Jebel Ben Amara (Nappe Zone), Bou Jaber, Bou Grine and Fedj el Adoum (Diapir Zone), Mecella and Jebel Azreg (North South Zone) have a supergene origin, whereas the carbonates sampled at Sekarna (Graben Zone) (and in limited part also at Bou Jaber) precipitated from thermal waters at moderately high temperature. Most weathering processes that controlled the supergene alteration of the Zn-Pb sulfide deposits in Tunisia had probably started in the middle to late Miocene interval and at the beginning of the Pliocene, both periods corresponding to two distinct tectonic pulses that produced the exhumation of sulfide ores, but the alteration and formation of oxidized minerals could have also continued through the Quaternary. The isotopic characteristics associated with the weathering processes in the sampled localities were controlled by the different locations of the sulfide protores within the tectonic and climatic zones of Tunisia during the late Tertiary and Quaternary.en
dc.identifier.citationMinerals 8.1 (2018). <https://www.mdpi.com/2075-163X/8/1/13>
dc.identifier.doihttps://doi.org/10.3390/min8010013
dc.identifier.opus-id11376
dc.identifier.urihttps://open.fau.de/handle/openfau/11376
dc.identifier.urnurn:nbn:de:bvb:29-opus4-113765
dc.language.isoen
dc.publisherMDPI
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/deed.de
dc.subjectnonsulfide deposits
dc.subjectTunisia
dc.subjectC–O stable isotopes
dc.subjectmineralogy
dc.subjectpaleoclimate
dc.subject.ddcDDC Classification::5 Naturwissenschaften und Mathematik :: 55 Geowissenschaften, Geologie :: 550 Geowissenschaften
dc.titleC−O Stable Isotopes Geochemistry of Tunisian Nonsulfide Zinc Deposits: A First Looken
dc.typearticle
dcterms.publisherFriedrich-Alexander-Universität Erlangen-Nürnberg (FAU)
local.date.prevpublished2018-01-09
local.journal.issue1
local.journal.titleMinerals
local.journal.volume8
local.sendToDnbfree*
local.subject.fakultaetNaturwissenschaftliche Fakultät
local.subject.importimport
local.subject.sammlungUniversität Erlangen-Nürnberg / Eingespielte Open Access Artikel / Eingespielte Open Access Artikel 2019
Files
Original bundle
Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
11376_minerals-08-00013.pdf
Size:
7.87 MB
Format:
Adobe Portable Document Format
Description: