Wednesday, July 23, 2014

 

 



Soy un nuevo usuario

Olvidé mi contraseña

Entrada usuarios

Lógica Matemáticas Astronomía y Astrofísica Física Química Ciencias de la Vida
Ciencias de la Tierra y Espacio Ciencias Agrarias Ciencias Médicas Ciencias Tecnológicas Antropología Demografía
Ciencias Económicas Geografía Historia Ciencias Jurídicas y Derecho Lingüística Pedagogía
Ciencia Política Psicología Artes y Letras Sociología Ética Filosofía


Sedimentological, petrographical and biostratigraphical characteristics of ODP Leg 190 volcanic ashes and siliceous claystones

1) La descarga del recurso depende de la página de origen
2) Para poder descargar el recurso, es necesario ser usuario
    registrado en Universia

  Descargar recurso

Detalles del recurso

Pertenece a: PANGAEA - Publishing Network for Geoscientific & Environmental Data  

Descripción: Leg 190 was the first of a two-leg program across the Nankai accretionary prism and Trough, offshore Japan, aiming to evaluate existing models for prism evolution and to constrain syntectonic sedimentation, deformation styles, mechanical properties, and prism hydrology (Moore, Taira, Klaus, et al., 2001; Moore et al., 2001). More than 400 volcanic ash and siliceous claystone (altered ash) layers were penetrated and sampled during drilling of the six sites from two transects across the accretionary prism (Sites 1173-1178). In sites from the subducting Shikoku Basin (Sites 1173 and 1177) and in the trench axis (Site 1174), recognition of ash layers and diagenetically altered ashes was initially important in defining major lithostratigraphic units. However, it is clear that understanding the diagenesis of the volcanic ashes has considerable implications for prism evolution, mechanical properties, prism hydrology, geochemistry, and fluid flow in the accretionary prism and associated subducting sediments (cf. Masuda et al., 1996, doi 10.1346/CCMN.1996.0440402). Particle size, chemical composition, temperature, depth of burial, and time are all thought to be factors that may affect volcanic ash diagenesis and preservation (Kuramoto et al., 1992, doi:10.2973/odp.proc.sr.127128-2.235.1992; Underwood et al., 1993, doi:10.2973/odp.proc.sr.131.137.1993). The overall aim of this research is to evaluate factors influencing volcanic ash diagenesis in the Nankai Trough area. This data report presents just the results of the sedimentological and petrographic analysis of the volcanic ashes and siliceous claystones from Sites 1173, 1174, and 1177. It is anticipated that when the results of additional geochemical analysis of these lithologies is available a more meaningful evaluation of factors influencing volcanic ash alteration will be possible.

Autor(es): Wilson, Moyra EJ -  Hirano, Satoshi -  Fergusson, Christopher L -  Steurer, Joan -  Underwood, Michael B - 

Id.: 55208288

Idioma: English  - 

Versión: 1.0

Estado: Final

Tipo:  application/zip, 3 datasets - 

Palabras clave0% -  30% glass clay/silt altered to clays -  0% -  30% glass fine/medium altered to clays -  190 -  1173A -  1174A -  1174B -  1177A -  30% -  65% glass clay/silt altered to clays -  65% glass fine/medium altered to clays -  50% -  100% glass fine/medium altered to clays -  65% -  100% glass clay/silt altered to clays -  accessory -  altered to clays -  base contact -  Biotite -  Bt -  Carb -  Carbonate -  Clay -  Clay min -  Clay minerals -  coarse, including gravel -  Color desc -  Color description -  Depth, bottom/max -  Depth, reference -  Depth, top/min -  Depth bot -  Depth ref -  Depth top -  Description -  Diatom -  Diatoms -  Drilling -  Epoch -  Feldspar -  fine -  Foram -  Foraminifera -  fragments -  Glass dissolution, scalloped margins -  Grain size descr -  Grain size description -  Igneous rock -  Joides Resolution -  Label -  Leg190 -  Lithic -  Lithic grains -  Lithologic unit/sequence -  lithology -  Lithology -  Lithology/composition/facies -  medium -  Mica -  Minerals -  Musc -  Muscovite -  Nannofossil abundance -  Nannofossil zone -  Nannos abund -  Nannos zone -  Ocean Drilling Program -  ODP -  ODP sample designation -  Opaque -  Opaque minerals -  Organic matter -  Org mat -  Philippine Sea -  Pyrite -  Quartz -  Rad abund -  Radiolarians abundance -  Samp com -  Sample code/label -  Sample comment -  Sample ID and section (cm) where sample was taken -  Sample thickness -  Samp thickn -  Sand -  Sect -  Section -  Section position -  sedimentary -  sedimentary structures -  Silicoflag abund -  Silicoflagellate abundance -  Silt -  Smear slide analysis -  smear slide depth in mbsf -  Sort descr -  Sorting description -  Sponge spic -  Sponge spiculae -  structures -  top contact -  undifferentiated -  Unit -  Volcanic glass -  Volcanic glass, altered -  Volc glass -  Volc glass alt -  where smear slide was taken -  Zeolite - 

Cobertura:  MEDIAN LATITUDE: 32.079735 * MEDIAN LONGITUDE: 134.664492 * SOUTH-BOUND LATITUDE: 31.652510 * WEST-BOUND LONGITUDE: 134.011880 * NORTH-BOUND LATITUDE: 32.342330 * EAST-BOUND LONGITUDE: 135.025150 - 

Tipo de recurso: Dataset  - 

Tipo de Interactividad: Expositivo

Nivel de Interactividad: muy bajo

Audiencia: Estudiante  -  Profesor  -  Autor  - 

Estructura: Atomic

Coste: no

Copyright: sí

: CC-BY: Creative Commons Attribution 3.0 Unported

Formatos:  application/zip, 3 datasets - 

Requerimientos técnicos:  Browser: Any - 

Relación: [IsBasedOn] Supplement to: Wilson, Moyra EJ; Hirano, Satoshi; Fergusson, Christopher L; Steurer, Joan; Underwood, Michael B (2003): Data report: Sedimentological and petrographic characteristics of volcanic ashes and siliceous claysontes (altered ashes) from Sites 1173, 1174, and 1177, Leg 190. In: Mikada, H; Moore, GF; Taira, A; Becker, K; Moore, JC; Klaus, A (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 190/196, 1-9, doi:10.2973/odp.proc.sr.190196.204.2003

Fecha de contribución: 23-abr-2013

Contacto:

Localización:
* doi:10.1594/PANGAEA.779585



Valoración de los usuarios

No hay ninguna valoración para este recurso.Sea el primero en valorar este recurso.
 

Busque un recurso