The diapir related Bou Grine Pb-Zn deposit (Tunisia); evidence for role of hot sedimentary basin brines

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Authors:Charef, A.; Sheppard, Simon M. F.
Author Affiliations:Primary:
Inst. Natl. Rech. Sci. et Tech., Hammam Lif, Tunisia
Other:
Université de Nancy I, France
Cent. Rech. Petrogr. et Geochim., France
Volume Title:Source, transport and deposition of metals
Volume Authors:Pagel, Maurice, editor; Leroy, Jacques L.
Source:p.269-272; 25th anniversary meeting of the Society for Geology Applied to Mineral Deposits, Nancy, France, Aug. 30-Sept. 3, 1991, edited by Maurice Pagel and Jacques L. Leroy. Publisher: A. A. Balkema, Rotterdam, Netherlands
Publication Date:1991
Note:In English. 12 refs.; 1 table, sect.
Summary:Combined fluid inclusion and H and O isotope studies indicate that hot to warm (140-55 degrees C) brines (17-22 eq. wt.% NaCl) with delta18O approx 10-14 per mille and deltaD approx - 56 to - 75 per mille were involved during two of the three principal ore-deposition stages (types 1 and 3). The third type of mineralization, which is stratiform, is inferred to be related to sea floor hot brine spring activity and synsedimentary and/or early diagenesis. All the hot brines are considered to come from the sedimentary basin. The diapir focused fluid circulation and may have been a source of S for certain mineralizations. [R.E.S.]
Subjects:Basins; Brines; C-13/C-12; Carbon; D/H; Deuterium; Diapirs; Economic geology; Fluid inclusions; Geochemistry; High temperature; Hydrogen; Hydrothermal alteration; Inclusions; Isotopes; Lead ores; Lead-zinc deposits; Metal ores; Metasomatism; Mineral deposits, genesis; Mineralization; Models; O-18/O-16; Ore-forming fluids; Oxygen; S-34/S-32; Sedimentary basins; Stable isotopes; Sulfur; Temperature; Zinc ores; Africa; North Africa; Tunisia; Bou Grine Deposit; Hydrothermal processes
Abstract Numbers:93M/303
Record ID:1992080149
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom
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