Pb-Zn deposits and salt-bearing diapirs in Southern Europe and North Africa

Rouvier, Henri; Perthuisot, V.; Mansouri, Abdelbaki

doi:10.2113/gsecongeo.80.3.666

Cited by 102 publications

(74 citation statements)

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“…The ores are hosted in carbonate rocks of various ages, ranging from Triassic to Mio-Pliocene. In terms of tectonic setting, host rock ages and paragenesis, the sulfide deposits in this part of Tunisia are subdivided into five sub-types [1,3,5,39]:…”

Section: Distribution and General Characteristics Of Zn-pb Ore Depositsmentioning

confidence: 99%

“…Most of these deposits are located in the Nappe Zone of the Tellian Atlas (e.g., Jebel Hallouf, Sidi Bouaouane, Sidi Driss, Djebba) [1,40].…”

Section: Distribution and General Characteristics Of Zn-pb Ore Depositsmentioning

confidence: 99%

“…In this mountain belt, Triassic to upper Miocene carbonate rocks host numerous Zn-Pb sulfide deposits, which genetically represent varieties of the typical Mississippi Valley-type (MVT) ores [1][2][3][4][5]. The nonsulfide Zn-Pb deposits of Tunisia have not been investigated since the pioneering works of [6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

“…Group 3: Zn-Pb vein-type and stratabound replacement deposits crosscutting Cretaceous limestones and subordinately Oligocene-Miocene sandstones in the vicinity of Triassic salt diapirs (e.g., Oued el Jebs, Kebbouch, Bou Khil, El Akhouat, Koudiat Safra deposits) [1,4,39,[42][43][44].…”

mentioning

confidence: 99%

“…Hydrothermal alteration of the carbonate host rock includes silicification, dolomitization and ankeritization and may vary within a single deposit. These common features allowed classifying the Tunisian sulfide deposits as Mississippi Valley-type mineralizations [1,[3][4][5]39,41]. Since the Tunisian Zn-Pb ores replace and crosscut Triassic to Mio-Pliocene host-rocks, they are considered to be genetically associated with the Alpine tectonic activity [8,39], which started in the Late Cretaceous in this region and reached its maximum with two successive phases in the middle Miocene and late Miocene-Pliocene [48,49].…”

mentioning

confidence: 99%

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

et al. 2018

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A 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.

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Section: Distribution and General Characteristics Of Zn-pb Ore Depositsmentioning

confidence: 99%

“…Most of these deposits are located in the Nappe Zone of the Tellian Atlas (e.g., Jebel Hallouf, Sidi Bouaouane, Sidi Driss, Djebba) [1,40].…”

Section: Distribution and General Characteristics Of Zn-pb Ore Depositsmentioning

confidence: 99%