geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Epigenetic gold mineralization, Baie Verte Peninsula, Newfoundland


, : Epigenetic gold mineralization, Baie Verte Peninsula, Newfoundland. Current Research Report Pages 39-51

The Baie Verte Peninsula is host to about 125 epigenetic, structurally controlled gold occurrences, most of which were discovered during the exploration boom of the late 1980s. These epigenetic gold occurrences cluster along major regionally extensive structural breaks such as the Baie Verte Line. Most occur in rocks of the Baie Verte Belt irrespective of age but are concentrated within the Cambro-Ordovician ophiolitic rocks and their cover sequences. Two distinct styles of gold mineralization are present, vein-hosted and altered wall-rock hosted mineralization. The vein-hosted style comprises three subclasses, i) quartz veins with free gold, ii) quartz-pyrite veins, and iii)base-metal-rich quartz veins that locally contain visible gold. The altered wall-rock hosted style comprises, i) quartz-pyrite+ or -carbonate replacement, ii) talc-magnesite replacement, and iii) red albite-pyrite replacement. A third group of gold occurrences are referred to as unassigned. These occurrences are typically altered wall-rock hosted in style, but they cannot be unequivocally classified as either epigenetic or syngenetic. Many of these occurrences are spatially associated with volcanogenic massive sulphide mineralization (e.g., the Rambler area). The epigenetic gold mineralization is related to Siluro-Devonian deformation. Variations in deposit morphology appear to reflect the complex interaction of the Fleur de Lys and Baie Verte belts along the Baie Verte Line and subsidiary structures.

US$29.90


Other references

Gripshover, B.M.; Valdez, H.; Salata, R.A.; Lederman, M.M., 1999: Withdrawal of fluconazole suppressive therapy for thrush in patients responding to combination antiviral therapy including protease inhibitors. Aids 12(18): 2513-2514

Onley, D., 1982: The nomenclature of the spotless crake (Porzana tabuensis). Notornis, 291: 75-77

Viscarret, M.; Torres-Jerez, I.M.nero, E.-De; Lopez, S.; Botto, E.; Brown, J., 2003: Mitochondrial DNA evidence for a distinct New World group of Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) indigenous to Argentina and Bolivia, and presence of the Old World B biotype in Argentina. A study was undertaken to establish the diversity within the Bemisia tabaci (Gennadius) species complex in Argentina using the mitochondria cytochrome oxidase I gene (mt COI) as a molecular marker. For one haplotype, common to cotton in the Santia...

Peluchette, J.; Karl, K.; Coustasse, A.; Emmett, D., 2013: Professionalism and social networking: can patients, physicians, nurses, and supervisors all be "friends?". The purpose of this study was to examine the use of social networking (Facebook) among nurse anesthetists. We examined whether they would have concerns about their supervisor, patients, or physicians seeing their Facebook profile. We also examined...

Kempken, K., 1983: Radionuclide liver diagnosis. Fortschritte der Medizin 101(10): 424-428

Anonymous, 1896: TRANSACTIONS OF THE NEW YORK SURGICAL SOCIETY. Stated Meeting, December 11, 1895. Annals of Surgery 23(3): 282-284

Karpenko V.S., 1989: Approaches to improving surgical treatment for hydronephrosis. There are two important aspects in hydronephrosis as a clinical problem: while specialized diagnostic techniques are well-developed, early detection of the disease remains unsatisfactory. Surgery ends in primary nephrectomy in 15-20% of the cases....

Vanarsdall, R.L.; White, R.P., 2001: Insurance frustration--what can be done?. International Journal of Adult Orthodontics and Orthognathic Surgery 15(3): 169-169

Burger R.; Von Steldern D.; Husmann M., 1982: Inhibition of t cell proliferation by an antibody directed to a surface component of guinea pig t cells. Immunobiology 163(2-4): 196

Allen, D.S.; Hosking, S., 1990: An arts co-ordinator in a psychiatric hospital. West of England Medical Journal 105(4): 116-116