Northern Apennines

Zaccarini, F. Garuti, G. 2008. Mineralogy and chemical composition of VMS deposits of northern Apennine ophiolites, Italy evidence for the influence of country rock type on ore composition. Mineralogy and Petrology, 84, 61-83. 

Fig. 3.4. Chondrite normalised REE patterns and mantle normalised incompatible element patterns of Intra-Apennine volcanic rocks. Patterns for mafic rocks from the Roman Province and the Virunga volcanoes (East Africa), for Enriched Mid Ocean Ridge Basalts (E-MORB) and for limestones from northern Apennines are also shown.

Fig. 4.1. 1 Location map of volcanoes of the Roman Province. Inset schematic structural map of northern Apennines.

Barchi M, Landuzzi A, Minelli G, Pialli G (2001) Outhem Northern Apennines. In Vai GB, Martini PI (eds) Anatomy of an Orogen. The Apennines and the adjacent Mediterranean basins. Kluwer, Dordrecht, pp 215-254... 

Decandia FA, Lazzarotto A, Liotta D, Cemobori L, Nicolich R (1998) The CROP 03 traverse insights on post-collisional evolution of Northern Apennines. Mem Soc Geol It 52 427-439... 

Principi G (1994) Stratigraphy and evolution of the Northern Apennine accretion wedge with particular regard to the ophiolitic sequences a review. Boll Geofis TeorAppl 36 243-269... 

Treves B (1984) Orogenic belts as accretionary prisms the example of the Northern Apennines. Ofioliti 9 577-618... 

Northern Apennines Marl This sample is from Miocene strata in the Perticara basin (Italy) which consists of gypsum deposits interbedded with bituminous marl layers deposited during the Mediterranean salinity crisis (54). Detailed information on the hydrocarbons and OSC in the bitumen of this sample have been reported elsewhere (9.16.54). 

Units consisting of linear carbon skeletons occur less abundantly in the resins of the Northern Apennines Marl bitumen than in those of the Jurf ed Darawish-156 bitumen. Mass chromatograms of m/z 87 and 101 (Figure 11)... 

Figure 9. Partial total ion chromatograms of the flash pyrolysates (358 and 610°C) of the polar fraction of the Northern Apennines Marl bitumen.

Figure 12. Total ion chromatogram (a) and m/z 57 mass chromatogram (b) of the hydrocarbons obtained upon desulfurisation of the polar fraction of the Northern Apennines Marl bitumen. Numbers indicate total number of carbon atoms of n-alkanes. The inset in Figure 12b shows a partial mass chromatogram of m/z 113.

In summary, Raney Ni desulfurisation of the polar fraction of the Northern Apennines Marl further supports the presence of (poly)sulfide-linked phytanyl, docosanyl and cholestanyl moieties (some of them with additional intramolecular sulfur linkages) in the resin fraction as proposed from the pyrolysis experiments. In addition, a number of other structural units are revealed e.g. pentakishomohopane, carotenoids, n-alkanes and isoprenoid alkanes. The reason why these structural units are not revealed by the pyrolysis experiments may be (i) their much lower relative abundance (e.g.9 other n-alkanes and isoprenoid alkanes), (ii) their attachment in the macromolecules by more than one (poly)sulfide linkage, which make their release from the macromolecule by flash pyrolysis unlikely ([Pg.522]

Most sediments from the Peruvian upwelling area contain a C isoprenoid trisulfide (12), as well as the corresponding isoprenoid disulfides. These compounds have been found to date only in one sediment from the northern Apennines and an incorporation of polysulfides has been invoked to explain their occurrence (29). 

Beccaluva L., MaciottaG., Piccardo G. B., and Zeda O. (1984) Petrology of Iherzolitic rocks from the Northern Apennine ophiolites. Lithos 17, 299 -316. 

Bezzi A. and Piccardo G. B. (1971) Structural featrrres of the Ligurian ophiolites petrologic evidence for the oceanic floor of the Northern Apennines geosyncline a contribution to the problem of the alpinetype gabbro-peridotite associations. Mem. Soc. Geol. Italiana 10, 53-63. 

Bortolotti V., and Chiari M. (eds.) (1994) The Northern Apennines Part 1. The Tuscan Nappe, the Ophiolitic Sequences, the Turbiditic Successions. Memorie della Societa Geologica Italiana. 

Rampone E. and Piccardo G. B. (2000) The ophiolite-oceanic lithosphere analogue new insights from the Northern Apennines (Italy). In Ophiolites and Oceanic Crust New Insights from Field Studies and the Ocean Drilling Program, Special Paper (eds. Y. Dilek, E. M. Moores, D. Elthon, and A. Nicolas). Geological Society of America, Boulder, CO, USA, vol. 349, pp. 21-34. 

Rampone E., Hofmann A. W., Piccardo G. B., Vannucci R., Bottazzi P., and Ottolini L. (1995) Petrology, mineral and isotope geochemistry of the external Liguride peridotites (Northern Apennines, Italy). J. Petrol. 36, 81-105. 

McBride E. F., Milliken K. L., Cavazza W., Cibin U., Fontana D., Picard M. D., and Zuffa G. G. (1995) Inhomogenous distribution of calcite cement at the outcrop scale in Tertiary sandstones, northern Apennines, Italy. Am. Assoc. Petrol. Geologists Bull. 79, 1044-1063. 

Venturelli G., Contini S., and Bonazzi A. (1997) Weathering of ultramafic rocks and element mobihty at Mt. Prinzera, Northern Apennines, Italy. Min. Mag. 61, 765-778. 

Dinelli E., Morandi N., and Tateo F. (1998) Fine-grained weathering products in waste disposal from two sulphide mines in the northern Apennines, Italy. Clay Mire 33, 423-433. 

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