342 research outputs found
Synthetic Review and geological framework of the main lucinid deposits (Italy).
No full textSYNTHETIC REVIEW AND GEOLOGICAL FRAMEWORK OF THE MAIN LUCINID DEPOSITS (ITALY)S. CONTI##Dipartimento di Scienze della Terra, Università di Modena, Largo S. Eufemia 19, 41100 Modena ([email protected])INTRODUCTIONThe main italian lucinid deposits, as reported from the geological literature, have been studied and, in many cases, reinterpreted in the field. The results are summarized in the following list. The outcrop localities have been differentiated on the base of various elements: 1) tectonofacies, 2) geographic position, 3) stratigraphy, 4) sedimentology, 5) faunal assemblage, 6) evidences of reworking.Key: In the following format type are indicated the outcrops, sometimes as reported from the literature, found by the author in the field. In many cases the same locality was reported under different names.The term "Lithology" refers to lucinid deposits, whereas "stratigraphy" refers to the sediments embedding lucinid deposits or isolated lucinid valves. "Bibliography" does not include all the papers reported in the “References of the italian lucinid deposits”.PIEDMONT BASINS(TORINO, MONFERRATO, LANGHE HILLS AND PAVIA FOOTHILLS) MARMORITO AND “LUCINA LIMESTONES”Location- Marmorito di Passorano (Cascina Galè, Cascina Fabiasco).Lithology- cream to light brown marly limestones blocks packed with lucinid remains (both articulated and disarticulated shells).Fossil assemblage- planktonic and subordinate benthic foraminifers, echinoid spines, serpulid tubes, gastropods, bivalvs (Anodontia dicomani), solitary and colonial corals, ostracods, bryozoans, fish remains, scaphopods.Stratigraphy- Marmorito and “Lucina Limestones” (late Tortonian?).Reference map- CTR 157090 Cocconato.Geological notes- the original geological framework is lost for poor exposure, lucinids probably enclosed in mudstones; methane-derived autigenic carbonates. POSITION: secondary. ENVIRONMENT: ?Bibliography- CLARI et al. (1988), CLARI et al. (1994), CLARI & MARTIRE (1995).S. AGATA FOSSIL MARLS 1)Portalbera (Pavia oltrepo’). Lithology- marly-calcareous blocks.Fossil assemblage- Lucina globulosa.Stratigraphy- S. Cipriano Po Formation (late Tortonian-early Messinian ?), correlable to the epiligurian deposits?.Reference map- Geological Sheet 59 Pavia.Geological notes- geological framework not known because of the poor exposure. POSITION: Primary? ENVIRONMENT: ?Bibliography- TARAMELLI (1882), SACCO (1891, 1929), PATRINI (1916), BONI (1967).2) Serravalle Scrivia = Carezzano near Fontana (Pavia area), 3) Monticello d'Alba (Roero), 4) Villa Majolo NW of Chieri (Monferrato hill). Fossil assemblage- hundred of species (see bibliography).Stratigraphy- S. Agata Fossil Marls (Tortonian).Reference map- Geological Sheet 70 Alessandria and Geological Sheet 56 Torino.Geological notes- Lucinids as not abundant specimens associated with a numerous high diversity fauna.POSITION: Primary. ENVIRONMENT: outer shelfBibliography- MAYER (1877), SACCO (1899), AUDENINO (1902), NELLI (1903), CAVALLO & REPETTO (1992).SERRAVALLE SANDSTONESRivanazzano e Cappella Montà (Moma), Nazzano hills between S. Antonino and Madonna del Monte (Pavia foothills). Lithology- marly calcareous bodies packed with big lucinids.Fossil assemblage- Lucina doderleini, Amussium denudatum.Stratigraphy- at the top of the Serravalle Sandstones (late Serravallian).Reference map- Geological Sheet 71 Voghera.Geological notes- Lucinid bodies enclosed in mudstones. The faunal association is characterised by low diversity and abundant fauna.POSITION: primary. ENVIRONMENT: inner, outer shelf. Bibliography- TARAMELLI (1882), SACCO (1891,1929), BELLINZONA et al. (1971), DESIO (1973).BALDISSERO FORMATIONBetween Pino Torinese and Pecetto north of Chieri, Superga, Baldissero, Sciolze, Cornaro, Albugnano, Bersano, S. Pietro delle Langhe, La-Moja di Montaldo Torinese, S. Defendente (Tagliolo), S. Mauro Torinese.Lithology- arenaceous calcarenites with red calcareous algae and big isolated lucinid shells, arenaceous siltstones with sparse lucinids.Fossil assemblage- Spirulirostra Bellardii, Sepia sepulta, Aturia aturi, Balantium pedemontanum, B. sinuosum, B. multicostatum, B. sulcosum, B. calix, Vaginella calandrellii, Trophon sculptus, Pollia affinis, P. granifera, Clavella brevicaudata, Ranella marginata, Drillia otusangula, D. cerithioidea, D. crebristriata, D. crispata, Clavatula inedita, Oligotoma pannua, O. ornata, Phos citharella, Nassa tessellata, N. intercisa, N. badensis, N. taurinurum, Purpura arata, Porphyria cylindracea, Ancillarina suturalis, Ancillaria glandiformis, Mitra laxesulcata, M. eofusiformis, M. adsita, Columbella scalaris, C. borsonii, C. compta, Haustator desmarestinus, Aequipecten scrabrellus, Lucina globulosa (L. pomum), Tauriniocrinuus gastaldi). Stratigraphy- at the top of the Baldissero Formation (late Serravallian).Reference map- CTR 156120 Mocucco Torinese, CTR 156110 Montaldo Torinese, CTR 157090 Cocconato, CTR 156100 Superga, CTR 156140 Chieri.Geological notes- Lucinid deposits probably crop out in two different stratigraphic levels. Lucinids as not abundant specimens associated with a numerous high diversity fauna.POSITION: secondary. ENVIRONMENT: inner slope ?.Bibliography- MAYER (1877), COPPI (1877), GIOLI (1887), SACCO (1889), DI ROVASENDA (1892), DE ALESSANDRI (1897), TRABUCCO (1900b), NELLI (1903), BELLINI (1905), PREVER (1907), FERRERO (1909), BONSIGNORE et al. (1969).Other reports without a precise localisation: Lucinids as isolated specimens belonging to a numerous high diversity fauna (inner shelf) are reported in the Pietra da Cantoni del Casalese (DE ALESSANDRI, 1897; SACCO 1935), the Acqui Limestone (TRABUCCO, 1898).CREMOLINO FORMATION1) near Mt. Colma di Rossiglione (Stura valley near Ovada), Carcare; 2) Villaforzano; 3) Tremolino = (Cremolino) at the quarry near the graveyard, Santa Giustina, Sassello, Mioglia, Pareto, Tagliolo Monferrato.Stratigraphy- Cremolino Formation (Aquitanian-Burdigalian).Geological notes- Lucinids as isolated specimens in primary position ? or in resedimented beds (secondary position) ?Bibliography- MAYER (1877), DE STEFANI (1880, 1881a, 1887b, 1891), (TRABUCCO (1891, 1898b), ROVERETO (1900), DI STEFANO (1903), NELLI (1903).SATELLITE BASINSEpiligurian SequenceTermina FormationBOLOGNA FOOTHILLS LOCALITIESHILLS BETWEEN THE RENO AND THE LAVINO RIVERS: Boeria del Santagata, Ducentola, Carbonara on the road from Tizzano towards Mt. Capra (near Mt. della Rocca), 200 m. north of Ponte Rivabella (Lavino riverbed). Lithology- marly-limestones, micritic limestones marls and brecciated limestones in sparse and numerous lens-like bodies gradually passing to surrounding sediments (marly mudstones). Lenses very rich in articulated, often in situ, bivalvs (chiefly lucinids).Fossil assemblage- Lucina pomum, Cardium sp., Lutraria sp., Ostrea sp.Stratigraphy- Termina Marls (Tortonian for Carbonara), (late Tortonian -Globorotalia acostaensis e G. conomiozea Zones, for the other localities).Reference map- CTR - Sez. 220110 Zola predosa, Geological Sheet 87 Bologna.Geological notes- The faunal association is characterized by low diversity and high abundance. Methane-derived autigenic carbonates.POSITION: Primary. ENVIRONMENT: Outer shelf, inner slope.Bibliography- MANZONI (1876b, 1880a, b), BOMBICCI (1881), DI STEFANO (1903), TERZI (1993), RICCI LUCCHI & VAI (1994), CONTI et al. (1994), CONTI et al. (1996).MARECCHIA VALLEY1) San Marino, southern side of the cliff.Lithology- poorly cemented fossiliferous sandstones.Fossil assemblage- Ostrea sp., Pecten sp., Cardium sp., Lucina multilamellata, Donax sp., Thracia sp., Tellina planata, Buccinum sp., Murex sp.Stratigraphy- Acquaviva Formation (Late Tortonian-early Messinian).Reference map- IGM 108 I NE S. Marino.Geological notes- Lucinids as isolated specimens belonging to a high diversity fauna. POSITION: Primary. ENVIRONMENT: inner shelf.Bibliography- MANZONI (1873a, b), FUCHS (1875), SCARABELLI (1880).. 2) Case del Gesso di Secchiano.Lithology- grey fossiliferous mudstones. Fossil assemblage- several species (see bibliography).Stratigraphy- Casa i Gessi Clays (early Messinian).Reference map- IGM 108 I NO Montegelli.Geological notes- Lucinids as isolated specimens belonging to a numerous high diversity fauna. POSITION: primary. ENVIRONMENT: outer shelf.Bibliography- (PRINCIPI 1939b, c).PARMA FOOTHILLS LOCALITIES1) left slope of the Torre di Traversetolo Stream, below Case la Costa.Lithology- marly limestones, brecciated micritic limestones, sometimes crowded with articulated lucinids.Fossil assemblage- Aturia aturi, Lucina globulosa.Stratigraphy- Termina Marls (late Serravallian).Reference map- CTR - Sez.200130 Traversetolo.Geological notes- Type locality of the Termina Formation. Carbonate bodies with a progressive lateral transition to pelitic marls. the faunal association is charaterised by low diversity. Methane-derived autigenic carbonates. POSITION: Primary. ENVIRONMENT: correlable to Modena and Bologna areas.Bibliography- ANELLI (1915), CONTI et al. (1996).2) Cinghio Stream (S. Ilario di Baganza) near Case Cuccarello.Outcrop description- Pteropod pelitic marls passing towards the top to siltitic and arenaceous marls intercalated with folliferous calcarenitic levels. Fossil assemblage- Lunulites sp., Turritella subangulata, Vermetus clathratoides, Sigaretus clathratus, Galeodea echinophora, Ficula condita, Nassa costulata, Aequipecten opercularis, Lucina globulosa, Corbula gibba, Teredo norvegica, Caryophyllia prelongia, Trochocyathus mitratus, Ceratotrochus duodecimcostatus, Flabellum sp., Pteropods.Stratigraphy- Termina Marls (early Tortonian).Reference map- IGM 85 I NO Langhirano.Geological notes- Lucinids as isolated specimens belonging to a numerous high diversity fauna. POSITION: Primary. ENVIRONMENT: slope with a depth > 400-500 m.Bibliography- ANELLI (1913). MODENA FOOTHILLS LOCALITIES1) MONTEGIBBIO (Montebiancano, Montebiancone): along the Serra Stream near the Pozzi Petrolio of Case Pozzo d'Olio, the Vigne along the path of Ca del Chierico (the muletrack going down to the Vigne from the depression located between the hill of the Montegibbio Castle and that one of Ca del Chierico), along the Bizzocchi Stream by S. Michele dei Mucchietti, east and west of the St. Michele dei Mucchietti Castle, Torrano above the Borrazze Stream.2) MONTEBARANZONE: Urbana Valley = Il Poggio di Montebaranzone (Cervarola) = badlands between Sogliano and Bompanaro = steep slopes of the stream going down to the Urbana Valley = between the hills of Casara (Casale) and Cervarola = Sarsetta,right slope of the Urbana Valley, below the path going to the Cervarola from Montebaranzone, 300 m south of the previous locality near the bend of the path going to Pianazza from Montebaranzone, a spur 365 m above sea level NE-ENE of Volpogno, two blocks located at 6-700 m NW of Montebaranzone, west and south of the church of Montebaranzone, by Mt. Scisso (the path running to Montebaranzone through the Braide, western branch of the Chianca (Cianca) Stream near Ominano, slopes underlying Casara. 3) MONTARDONE: Rocca S. Maria di Montardone (Rock of the witches) = southern margin of the flat top of the hill located 900 m SW of Rocca S. Maria = 4 big blocks near the Spezzano Stream, the pond near the stream going down from Montardone = right slope of the Spezzano Stream 1 km WSW of Rocca S. Maria near the confluence of the Montardone Stream, east and north of Poggio Andreotti (the hill 500 m above sea level E of Rocca S. Maria), NW of the confluence of the Pratofiore Stream, 100 m NNE of Montardone along the castle muletrack = the rock projection below the Montardone Castle = north of Montardone. 4) W of Densano (Fosso Pasticcio)Lithology- biomicritic marly calcareous and calcarenitic lenses or column-like bodies (thickness ranging from 50 cm to 20-25 m) crowded with articulated lucinids. Carbonate breccias with disarticulated bivalves. Marly limestones usually crowded with articulated, often in situ, bivalves (chiefly lucinids), whereas calcarenites with rare fossils. Fossil assemblage- Lucina hornesii, L. delbosii (=pomum =appenninica), Cypraea amygdalum, Fusus glomus, F. rostratus, Modiola subcarinata, Ostrea pusilla, Vermetus intortus, Ranella reticulata, Trochus rotelaris, T. magus, Petricula lithophaga.Stratigraphy- Termina Marls (late Serravallian). Geological notes- Lucinid bodies gradually passing to surrounding sediments (marly mudstones) and sometimes (at their base) associated with Ligurian calcareous breccias bearing rare disarticulated lucinids. the faunal association is characterized by low diversity and high abundance. Methane-derived autigenic carbonates.POSITION: primary except for the breccias (secondary). ENVIRONMENT: Outer shelf, inner slope.Reference map- IGM 86 II NE Levizzano, IGM 86 II NO Serramazzoni, IGM 86 I SO Sassuolo.Bibliography- DODERLEIN (1862, 1872), STOHR (1869), COPPI (1869, 1877, 1884, 1886), MAZZETTI (1874), BIANCONI (1877), FERRETTI (1879a, b), MALAGOLI (1886a, b, 1890), PANTANELLI (1886a, b), DE STEFANI (1887, 1900), NELLI (1903), DI STEFANO (1903), FOSSA MANCINI,(1924), MONTANARO (1929a, b, c), LANDI (1930), MORESCHI (1930), ANELLI (1935), DIECI (1959), DIECI & RUSSO (1964), RUSSO (1968), DAVOLI (1972, 1976, 1977, 1982), CONTI et al. (1994), CONTI et al. (1996). Bismantova GroupPARMA APENNINE1) Fosso Bottazzo = from Rusino to Bottazzo (between Moragnano and Rusino).Lithology- carbonate coquina debris, marly calcareous bodies, fossiliferous arenaceous marls.Fossil assemblage- Aturia Aturi, Echinolampas depressa, Lucina globosa, L. Dujardini, L. columbella, L. concentrica ?, Oliva flammulata, Thracia sp., Donax, sp., Ampullaria sp., Conus sp., Buccinum sp., Ringicula sp., Craticularia sp., Laocetes sp.Stratigraphy- Casa Bottazzo Marls (Cigarello marls) near the transition to the Vetto Sandstones (early Serravallian).Reference map- CTR 217120 Ranzano.Geological notes- isolated disarticulated shells, usually at the base of resedimented beds, associated with a high diversity fauna of probable shelf provenance (Pantano marls?). Ligurian clasts occur in some resedimented beds. POSITION: secondary. ENVIRONMENT: slope.Bibliography- DEL PRATO (1881), DEL BUE (1900), ANELLI (1913, 1915).2) Podere Campetello, near the church of Madonna dell'Aiuto, between Rosano and Ca del Grosso, Casa del Cerchio, below the top of Mt. Piano about 750 above sea level (east of Vetto near Rosano), Parmossa Valley by Mt. FusoLithology- carbonate coquina debris, marly calcareous bodies, fossiliferous arenaceous marls.Fossil assemblage- Isis melitensis, Trochocyathus oboesus, Flabellum avicula, Pecten Besseri, Amussium duodecimlamellatus, Dorocidaris blakei, Spatangus austriacus, Nucula nucleus, Chama gryphoides, Lucina sinuosa, L. transversa, Scalaria globosa, Turritella subangulata, Aturia aturi, Natica millepunctata.Stratigraphy- Cigarello marls near the transition to the Vetto Sandstones (early Serravallian).Reference map- Geological Sheet 85 Castelnovo ne’ Monti.Geological notes- isolated disarticulated shells associated with a high diversity fauna, usually at the base of resedimented beds. Associated with Ligurian carbonate breccias, slumps and ligurian-epiligurian olistoliths.POSITION: secondary. ENVIRONMENT: slope.Bibliography- SIMONELLI (1896), DEL BUE (1900), ANELLI (1913, 1935).MODENA-REGGIO APPENNINE1) Rocca Tagliata, Monte Tagliata, Pigneto, Montagnana, Densano, Puianello, Pescale, Ospitaletto, Guiglia, Monte Orsello. 2) Guardone (Guardasone), Bedogno, Borseda, Grassano, Borgo Grassano (Traversetolo), Corboniano, Villa near Carpineto; 3) Castello di Baiso, Pantano, Montese, Paullo, Onfiano, Cologno, Frascara, Castelvecchio di Baiso, N of Roteglia.Lithology- calcarenites (Lucina pomum limestone of the authors).Fossil assemblage- Lucina incrassata, L. isseli, L. rollei, L. borealis, Mitra, Cassis, Nassa, Isocardia, Pholadomia, Teredo Cerithium, Pleurotoma and many other spesies (see bibliography).Stratigraphy- Pantano Formation (Langhian-early Serravallian).Reference map- IGM 86 III NO Carpineti, IGM 86 IV SO Casina, Geological Sheet 85 Castelnovo ne’ Monti, Geological Sheet 86 Modena.Geological notes- Lucinids as isolated specimens belonging to a numerous high diversity fauna. POSITION: primary. ENVIRONMENT: outer shelf-slope.Bibliography- DODERLEIN (1872), COPPI (1877, 1884), MAZZETTI (1879), PANTANELLI (1882, 1883, 1886a, b, c), PANTANELLI & MAZZETTI (1887a, b), MALAGOLI (1887, 1890), DI STEFANO (1903), NELLI (1903).BOLOGNA APENNINE1) Mt. Radicchio between Marzabotto and Vergato= left side of the Reno River over the Pioppe station.Lithology- arenaceous marls.Fossil assemblage- Aturia aturi, Pecten sp., Lucina globulosa, L. callypteryx, Lucina sp., Turritella sp., Pecten dodecimlamellatus, Teredo norvegica, Cassidaria thyrrena, Taonurus flabelliformis.Stratigraphy- Pantano marls (Langhian-early Serravallian).Reference map- CTR 237060 Vedegheto. Geological notes- Lucinids as isolated specimens belonging to a high diversity fauna ?. POSITION: primary. ENVIRONMENT: outer shelf-slope.Bibliography- MANZONI (1881), SIMONELLI (1891), CREMONINI & ELMI (1971), NELLI (1903, 1913).2) San Leone (S. Leo), Mt. Vigese.Lithology- arenaceous marls.Fossil assemblage- Aturia Morrisii, Dentalium sp., Cytherea sp., Lucina sinuosa, L. sp., Solenomya doderleini, Pecten denudatus, P. duodecimlamellatus, Echinoderms.Stratigraphy- Pantano Marls (early Serravallian).Reference map- Geological Sheet 87 Bologna.Geological notes- Lucinids as isolated specimens belonging to a high diversity fauna. POSITION: primary. ENVIRONMENT: outer shelf-slope.Bibliography- FUCHS (1875), MANZONI (1876a).TUSCAN-ROMAGNA APPENNINE1) M. Bosio (Boso) of the Savio Valley.Lithology- arenaceous marls.Stratigraphy- Mt. Fumaiolo Formation (late Langhian-early Serravallian).Reference map- IGM 108 I NO Montegelli.Geological notes-Lucinids as isolated specimens scattered in the sediment. POSITION: primary. ENVIRONMENT: outer shelf.Bibliography- NELLI (1903). 2) La Verna (Calcio del Diavolo).Lithology- limestones with bryozoans and rhodoliths.Fossil assemblage- Lithothamnium seganum, L. langhianum, L. viennae, L. foslie, Lithophyllumn racemus, Clamys scabrella, Pecten malvinae, P. aduncus, Ostrea lamellosa, O. crassissima, Cidaris avenoniensis, Echinolampas angulatus, Lamna hopeli, L. cuspidata, Crysophris sp., Odontapsis contortidens, O. cuspidata, Charcarodon megalodon, Lucina globulosa, Cellepora sp., Smittia sp., Spondylus deshayesi, Conocrinus sp.Stratigraphy- basal part of the S. Marino Formation(late Burdigalian-early Langhian).Reference map- IGM II SE Chiusi della Verna.Geological notes- Lucinids as isolated specimens belonging to a numerous high diversity fauna. POSITION: primary. ENVIRONMENT: inner shelf.Bibliography- SIMONELLI (1883), TRABUCCO (1900a), MIGLIORINI (1910), PRINCIPI (1925b), SACCO (1940). 3) San Marino (Mt. Titano).Lithology- limestones with bryozoans and rhodoliths.Fossil assemblage- Lamna contortidens, Oxyrhina isocelica, O. xiphodon, Carcharodon megalodon, C. crassidens, C. polygyrus, Sphaerodus cintus, Clypeaster scutum, Psammechinus parvus, Conoclypus plagiosomus, Echinolampas Laurillardi, Porites ramosa, Trochocyatus elegans, Balanophyllia sp., Natica sp., Cardium difficile, Lucina transversa, Pecten sp., P. besseri, P. latissimus, P. scabrellus, P. revolutus, Ostrea digitalina, Cellepora sammarinensis, Retepora vibicata, Eschara ondulata, Hornera trabecularis, Membranipora sp., Miriozoon truncatum, Serpula mummulus, Terebratula costae, Cassis mamillaris.Stratigraphy- basal part of the S. Marino Formation(late Burdigalian-early Langhian).Reference map- IGM I NE S. Marino.Geological notes- Lucinids as isolated specimens belonging to a numerous high diversity fauna. POSITION: primary. ENVIRONMENT: inner shelf.Bibliography- SCARABELLI (1848, 1880), MANZONI (1873a, b), FUCHS (1875), TRABUCCO (1906), NELLI (1906, 1907), DE GASPERI (1922). Other reports without a precise localisation: Lucinids as isolated specimens belonging to a numerous high diversity fauna (inner shelf) are reported in the basal part of the Pietra of Bismantova Member (SACCO, 1932).MINOR BASINSMODENA APENNINENNW of Castellara (Ca del Vento of Barigazzo).Lithology- coquina debris in arenaceous limestones blocks, dark grey limestones, carbonate breccias.Fossil assemblage- Cypricardia, Thracia pubescens, Lucina doderleini, Corallinaceae, Lutraria sp, Eburnia eburnoides. Stratigraphy- Barigazzo Sandstones (early Serravallian).Reference map- CTR - Sez. 235120 (Boccassuolo).Geological notes- the original geological framework is lost for poor exposure. Lucinids usually disarticulated, sometimes articulated but randomly disposed. Bivalves probably enclosed in a thick resedimented calcarenitic bed. Carbonate breccias with fauna of shelf provenance ?POSITION: secondary. ENVIRONMENT: inner fan.Bibliography- LOTTI (1895a, b, 1910), TAVANI (1943), FAZZINI (1963), REUTTER (1969), TERZI (1992),BOLOGNA APENNINEMadonna del Ponte quarry (Porretta), railway quarry of Porretta.Lithology- turbiditic sandstones, calcarenites.Fossil assemblage- Modiola exbrocchii, Solenomya doderleini, Cytherea multilamellata, Pecten 12lamellatus, Lucina globulosa, L. dicomani, L. inversa, L. Fuchsi, L. spinifera, L. elliptica, Teredo norvegica, T. appenninica, Syndosmya prismatica, Pholadomya sp., Solenomya doderleini, Naera cuspidata, Aturia aturi, Spatangus austriacus, Taonurus flabelliformis, Tapes, Cassidaria thyrrena, Eudolium fasciatum, Crysodomus bombiccii, Oxyrrhina desorii, Charcarodon megalodon, Craticularia Manzonii, Euplectella bianconii, Clio multicostata, C. triplicata, Serpula capellini. Stratigraphy- Porretta sandstones (early Serravallian)Reference map- CTR 251080 Granaglione.Geological notes- Lucinids as isolated spe
Erratum in Int J Biol Markers 2007; 22(3): 226-231
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Severity of specific language impairment predicts delayed development in number skills
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HS1 protein is differentially expressed in chronic lymphocytic leukemia patient subsets with good or poor prognoses
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Measurement of sigma (pp -> bbX) at √s=7 TeV in the forward region
No full textDecays of b hadrons into final states containing a D-0 meson and a muon are used to measure the bb; production cross-section in proton-proton collisions at a centre-of-mass energy of 7 TeV at the LHC. In the pseudorapidity interval 2 < eta < 6 and integrated over all transverse momenta we find that the average cross-section to produce b-flavoured or b-flavoured hadrons is (75.3 +/- 5.4 +/- 13.0) mu b
First observation of the decay Bs0→K*0K*0
No full textThe first observation of the decay B0s→K∗0K∗0 is reported using 35 pb−1 of data collected by LHCb in proton–proton collisions at a centre-of-mass energy of 7 TeV. A total of 49.8±7.5 B0s→(K+π−)(K−π+) events are observed within ±50 MeV/c2 of the B0s mass and 746 MeV/c2 < mKπ < 1046 MeV/c2, mostly coming from a resonant B0s→K∗0K∗0 signal. The branching fraction and the CP-averaged K∗0 longitudinal polarization fraction are measured to be B(B0s→K∗0K∗0)=(2.81±0.46(stat.)±0.45(syst.)±0.34(fs/ fd))×10−5 and fL =0.31±0.12(stat.)±0.04(syst.)
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