Magnetic fabrics of the Miocene ignimbrites from West-Cameroon: Implications for pyroclastic flow source and sedimentation

[1]  Patrick Launeau,et al.  Two- and three-dimensional shape fabric analysis by the intercept method in grey levels , 2010 .

[2]  J. Bardintzeff,et al.  The discovery of late Quaternary basalt on Mount Bambouto: Implications for recent widespread volcanic activity in the southern Cameroon Line , 2010 .

[3]  M. Ernesto,et al.  Palaeomagnetism, rock magnetism and AMS of the Cabo Magmatic Province, NE Brazil, and the opening of South Atlantic , 2009 .

[4]  B. Behncke.  Hazards from pyroclastic density currents at Mt. Etna (Italy) , 2009 .

[5]  G. Giordano,et al.  Meandering flow of a pyroclastic density current documented by the anisotropy of magnetic susceptibility (AMS) in the quartz latite ignimbrite of the Pleistocene Monte Cimino volcanic centre (central Italy) , 2009 .

[6]  E. Njonfang,et al.  Geochemistry and geochronology of mafic rocks from Bamenda Mountains (Cameroon): Source composition and crustal contamination along the Cameroon Volcanic Line , 2008 .

[7]  Sylvain J. Charbonnier,et al.  Field observations and surface characteristics of pristine block-and-ash flow deposits from the 2006 eruption of Merapi Volcano, Java, Indonesia , 2008 .

[8]  J. Bardintzeff,et al.  Evolution of volcanism in graben and horst structures along the Cenozoic Cameroon Line (Africa): implications for tectonic evolution and mantle source composition , 2008 .

[9]  B. Behncke,et al.  Pyroclastic density currents resulting from the interaction of basaltic magma with hydrothermally altered rock: an example from the 2006 summit eruptions of Mount Etna, Italy , 2008 .

[10]  G. Giordano,et al.  The Holocene Secche di Lazzaro phreatomagmatic succession (Stromboli, Italy): evidence of pyroclastic density current origin deduced by facies analysis and AMS flow directions , 2008 .

[11]  L. Londeix,et al.  Hyperactive neotectonic near the South Rifian front : Lifted Late Quaternary lagunal deposits (Atlantic Morocco) , 2007 .

[12]  G. Chazot,et al.  Géochimie et géochronologie des laves felsiques des monts Bamenda (ligne volcanique du Cameroun) , 2007 .

[13]  I. Ngounouno,et al.  The Cameroon Hot Line (CHL): A unique example of active alkaline intraplate structure in both oceanic and continental lithospheres , 2007 .

[14]  H. Bellon,et al.  Iconography : Les basaltes éocènes à affinité transitionnelle du plateau Bamoun, témoins d'un réservoir mantellique enrichi sous la ligne volcanique du Cameroun , 2007 .

[15]  V. Ngako,et al.  The North–South Paleozoic to Quaternary trend of alkaline magmatism from Niger–Nigeria to Cameroon: Complex interaction between hotspots and Precambrian faults , 2006 .

[16]  R. Herd,et al.  Tephra deposits associated with a large lava dome collapse, Soufriere Hills Volcano, Montserrat, 12-15 July 2003 , 2006 .

[17]  P. Launeau,et al.  AMS and grain shape fabric of the Late Palaeozoic diamictites of the Southeastern Paraná Basin, Brazil , 2006, Journal of the Geological Society.

[18]  H. Bellon,et al.  Les laves du mont Bangou : une première manifestation volcanique éocène, à affinité transitionnelle, de la Ligne du Cameroun , 2005 .

[19]  J. Urrutia‐Fucugauchi,et al.  Paleomagnetic and magnetic fabric studies of the San Gaspar ignimbrite, western Mexico : constraints on emplacement mode and source vents , 2004 .

[20]  P. Launeau.  Evidence of magmatic flow by 2-D image analysis of 3-D shape preferred orientation distributions , 2004 .

[21]  E. Njonfang,et al.  Pyroclastic deposits of the Bambouto volcano (Cameroon Line, Central Africa): evidence of an initial strombolian phase , 2004 .

[22]  R. Sparks,et al.  Discharge of pyroclastic flows into the sea during the 1996–1998 eruptions of the Soufrière Hills volcano, Montserrat , 2004 .

[23]  J. Nzenti,et al.  Geochemistry and preliminary Sr-Nd isotopic data on the Neoproterozoic granitoids from the Bantoum area, west Cameroon: evidence for a derivation from a Paleoproterozoic to Archaean crust , 2003 .

[24]  E. Njonfang,et al.  Clinopyroxene from some felsic alkaline rocks of the Cameroon Line, central Africa: petrological implications , 2003 .

[25]  G. Giordano,et al.  Magnetic fabric and implications for pyroclastic flow and lahar emplacement, Albano maar, Italy , 2003 .

[26]  E. Njonfang,et al.  Zonal and vertcal variations in welding rate and composition of ignimbrites in the bambouto volcano (cameroon line, central africa): volcanological importance. , 2003 .

[27]  J. Bardintzeff,et al.  The Tombel graben (West Cameroon): a recent monogenetic volcanic field of the Cameroon Line , 2002 .

[28]  G. Orsi,et al.  Anisotropy of magnetic susceptibility studies of depositional processes in the Campanian Ignimbrite, Italy , 2002, Bulletin of Volcanology.

[29]  P. Robin.  Determination of fabric and strain ellipsoids from measured sectional ellipses — theory , 2002 .

[30]  X. Wang,et al.  Flow directions of Carboniferous ignimbrites, southern New England Orogen, Australia, using anisotropy of magnetic susceptibility , 2001 .

[31]  D. Heslop,et al.  Quantification of magnetic coercivity components by the analysis of acquisition curves of isothermal remanent magnetisation , 2001 .

[32]  A. Michard,et al.  New U–Pb and Sm–Nd data from north-central Cameroon and its bearing on the pre-Pan African history of central Africa , 2001 .

[33]  J. Pennec.  Identifying ash flow sources with directional data: An application to the Kizilkaya ignimbrite, central Anatolia , 2000 .

[34]  G. Salviulo,et al.  Ca-rich pyroxene from basic and silicic volcanic rocks from the Cameroon Volcanic Line (West-Africa): crystal chemistry and petrological relationships , 2000 .

[35]  J. Bouchez.  Anisotropie de susceptibilité magnétique et fabrique des granites , 2000 .

[36]  M. Rosi,et al.  Correlation of deposits and vent locations of the proximal Campanian Ignimbrite deposits, Campi Flegrei, Italy, based on natural remanent magnetization and anisotropy of magnetic susceptibility characteristics , 1999 .

[37]  M. Perrin,et al.  Is this magnetic fabric normal? A review and case studies in volcanic formations , 1999 .

[38]  W. Macdonald,et al.  Anisotropy of magnetic susceptibility in relation to source vents of ignimbrites: empirical observations , 1999 .

[39]  Subir K. Banerjee.  Rock Magnetism: Fundamentals and Frontiers , 1998 .

[40]  Patrick Launeau,et al.  Magnetite grain shape fabric and distribution anisotropy vs rock magnetic fabric: a three-dimensional case study , 1998 .

[41]  Hervé Diot,et al.  Interpretation of anisotropy of magnetic susceptibility fabric of ignimbrites in terms of kinematic and sedimentological mechanisms: An Anatolian case-study , 1998 .

[42]  H. Palmer,et al.  Structural rotation and volcanic source implications of magnetic data from Eocene volcanic rocks, SW Idaho , 1998 .

[43]  G. Valentine,et al.  Turbulent transport and deposition of the Ito pyroclastic flow: Determinations using anisotropy of magnetic susceptibility , 1997 .

[44]  C. Ballentine,et al.  Hafnium isotopic studies of the Cameroon line and new HIMU paradoxes , 1997 .

[45]  B. Cagnoli,et al.  The reliability of anisotropy of magnetic susceptibility (AMS) data as flow direction indicators in friable base surge and ignimbrite deposits: Italian examples , 1997 .

[46]  G. Walker,et al.  Magnetic fabric and flow direction in basaltic Pahoehoe lava of Xitle volcano, Mexico , 1995 .

[47]  J. Fitton,et al.  Isotopic variations with distance and time in the volcanic islands of the Cameroon line: evidence for a mantle plume origin , 1994 .

[48]  D. J. Robertson.  Discrimination of remanence-carrying minerals in mixtures, using isothermal remanent magnetisation acquisition curves , 1994 .

[49]  G. Heiken,et al.  Mobility of a large-volume pyroclastic flow — emplacement of the Campanian ignimbrite, Italy , 1993 .

[50]  M. Ort.  Eruptive processes and caldera formation in a nested downsagcollapse caldera: Cerro Panizos, central Andes Mountains , 1993 .

[51]  P. Rochette,et al.  Rock magnetism of remagnetized Paleozoic carbonates: Low‐temperature behavior and susceptibility characteristics , 1993 .

[52]  D. Buesch.  Incorporation and redistribution of locally derived lithic fragments within a pyroclastic flow , 1992 .

[53]  M. Jackson,et al.  The rock magnetic fingerprint of chemical remagnetization in midcontinental Paleozoic carbonates , 1992 .

[54]  M. L. Williams,et al.  Center-to-center analysis and flow fabric characterization in ash-flow tuffs , 1992 .

[55]  W. E. Elston,et al.  Magnetic fabrics of the Bloodgood Canyon and Shelley Peak Tuffs, southwestern New Mexico: implications for emplacement and alteration processes , 1991 .

[56]  R. Wells,et al.  Magnetic Fabric, Flow Directions, and Source Area of the Lower Miocene Peach Springs Tuff in Arizona, California, and Nevada , 1991 .

[57]  H. Palmer,et al.  Magnetic, structural and geochronologic evidence bearing on volcanic sources and Oligocene Deformation of Ash Flow Tuffs, northeast Nevada , 1991 .

[58]  H. Palmer,et al.  Flow directions in ash-flow tuffs: a comparison of geological and magnetic susceptibility measurements, Tshirege member (upper Bandelier Tuff), Valles caldera, New Mexico, USA , 1990 .

[59]  B. Ellwood,et al.  Anisotropy of magnetic susceptibility in welded tuffs: application to a welded-tuff dyke in the tertiary Trans-Pecos Texas volcanic province, USA , 1989 .

[60]  T. Ui,et al.  Flow behavior of large-scale pyroclastic flows — Evidence obtained from petrofabric analysis , 1989 .

[61]  P. Rochette.  Inverse magnetic fabric in carbonate-bearing rocks , 1988 .

[62]  T. Ui,et al.  Depositional ramps: asymmetrical distribution structure in the Ata pyroclastic flow deposit, Japan , 1988 .

[63]  S. Self,et al.  Vent sites and flow directions of the Otowi ash flows (lower Bandelier Tuff), New Mexico: Discussion and reply , 1987 .

[64]  G. Walker,et al.  Stratigraphy, paleomagnetism, and magnetic fabric of the Toba Tuffs: Constraints on the sources and eruptive styles , 1986 .

[65]  K. Mimura.  Imbrication, flow direction and possible source areas of the pumice-flow tuffs near Bend, Oregon, U.S.A. , 1984 .

[66]  D. Tarling,et al.  Magnetic fabric investigations of pyroclastic deposits from Phlegrean Fields, southern Italy , 1983, Nature.

[67]  K. Mimura,et al.  Flow directions inferred from imbrication in the Handa pyroclastic flow deposit in Japan , 1983 .

[68]  T. Ui,et al.  Factors governing the flow lineation of a large-scale pyroclastic flow — An example in the ata pyroclastic flow deposit, Japan , 1983 .

[69]  T. Ui,et al.  Grain orientation and depositional ramps as flow direction indicators of a large-scale pyroclastic flow deposit in Japan , 1982 .

[70]  B. Ellwood.  Estimates of flow direction for calc-alkaline welded tuffs and paleomagnetic data reliability from anisotropy of magnetic susceptibility measurements: Central San Juan Mountains, southwest Colorado , 1982 .

[71]  V. Jelínek.  Characterization of the magnetic fabric of rocks , 1981 .

[72]  Colin J. N. Wilson,et al.  Orientation of logs in the Taupo Ignimbrite as an indicator of flow direction and vent position , 1981 .

[73]  A. Taira,et al.  Deposition of resedimented sandstone beds in the Pico Formation, Ventura Basin, California, as interpreted from magnetic fabric measurements , 1979 .

[74]  V. Kropáček,et al.  Statistical processing of anisotropy of magnetic susceptibility measured on groups of specimens , 1978 .

[75]  R. Bhathal.  Magnetic anisotropy in rocks , 1971 .

[76]  Eugene I. Smith,et al.  Determination of Flow Direction of Rhyolitic Ash-Flow Tuffs from Fluidal Textures , 1970 .

[77]  J. Geissman,et al.  Anisotropy of magnetic susceptibility data bearing on the transport direction of mid-tertiary regional ignimbrites, Candelaria Hills area, West-Central Nevada , 2008 .

[78]  P. Launeau,et al.  Determination of fabric and strain ellipsoids from measured sectional ellipses—implementation and applications , 2005 .

[79]  Colin J. N. Wilson,et al.  Pyroclastic Density Currents and the Sedimentation of Ignimbrites , 2005 .

[80]  H. Bellon,et al.  La ligne du Cameroun : volcanologie et géochronologie de trois régions (Mont Manengouba, Plaine du Noun et Tchabal Gangdaba). , 2003 .

[81]  P. Renne,et al.  The Cameroon Volcanic Line Revisited: Petrogenesis of Continental Basaltic Magmas from Lithospheric and Asthenospheric Mantle Sources , 2000 .

[82]  C. Moreau,et al.  The Cameroon Line: A Review , 1991 .

[83]  A. B. Kampunzu,et al.  Magmatism in Extensional Structural Settings , 1991 .

[84]  P. Rochette.  Magnetic susceptibility of the rock matrix related to magnetic fabric studies , 1987 .

[85]  D. Potter,et al.  Vent sites and flow directions of the Otowi ash flows (lower Bandelier Tuff), New Mexico , 1987 .

[86]  J. Fitton,et al.  The Cameroon line, West Africa: a comparison between oceanic and continental alkaline volcanism , 1987, Geological Society, London, Special Publications.