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English translation: ignimbritic tuff

GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW)
Spanish term or phrase:tobas de aspecto ignimbrítico
English translation:ignimbritic tuff
Entered by: Nikki Graham

18:20 Nov 7, 2003
Spanish to English translations [PRO]
Science
Spanish term or phrase: tobas de aspecto ignimbrítico
Geología:

descripción de una zona minera
Ernesto Leigh
Chile
Local time: 02:49
ignimbritic tuff
Explanation:
This is what I think it could be. The aspecto concerned me, because you can have LARI and HARI (low and high aspect ratio ignimbrite), but if it has some aspect (either high or low) it will be ignimbritic.

PDF] Microsoft PowerPoint - 03McSaveney.ppt
File Format: PDF/Adobe Acrobat - View as HTML
... water retaining structures or structures in the sea. Carbunculus
(an artificial pozzolan comprised of calcined ***Ignimbritic Tuff***). ...
www.civil.canterbury.ac.nz/events/ pandp/03McSaveney.pdf

[PDF] Colour genesis of Upper Cretaceous pelagic red sediments within ...
File Format: PDF/Adobe Acrobat - View as HTML
... Eren ve Kadir 73 Alluvium Travertine Talus breccia ***Ignimbritic tuff*** Pillow lava,
aglomerate, tuff Hornblend bearing andesite lava Angular unconformity Basic ...
www.yerbilimleri.hacettepe.edu.tr/no24/yb24txt7.pdf
Servicio Geológico Nacional
... The ***pyroclastic (including ignimbritic tuff***) and epiclastic rocks, when they are
fresh, are dense and massive; the ***ignimbritic tuff*** and epiclastic rocks show ...
www.snet.gob.sv/Geologia/Sismologia/3geoamss.htm

Volume 34 No. 2
... granite-rhyolite province. This terrane is comprised of undeformed
rhyolite,*** ignimbritic tuff***, granite, and diabase. The Panhandle ...
pubs.gg.uwyo.edu/CTGs/RMG_34-2.htm


This, together with the foliated appearance (parallel to bedding) of the bed when weathered, suggests that the ***upper tuff is ignimbritic in origin***. The lower tuff contains chloritically altered glass shards, pumice clasts, and clay clots psudomorphing pumice. The lower sequence possesses an ignimbrite like texture and parallel clasts, indicating that it too may be ignimbritic in nature. (2nd ref)
Selected response from:

Nikki Graham
United Kingdom
Local time: 07:49
Grading comment
Thank you for your very thorough reply. Yes, the document concerns a Chilean project.
4 KudoZ points were awarded for this answer



Summary of answers provided
5 +1ignimbrite tuffs
Alicia Jordá
5 +1tufas with an ignibritic aspect
Michael Powers (PhD)
5tufa with the appearance of ash flow
Parrot
4ignimbritic tuff
Nikki Graham


  

Answers


12 mins   confidence: Answerer confidence 5/5
tobas de aspecto ignimbrítico
tufa with the appearance of ash flow


Explanation:
or "ignimbrite" (lahar)

beautifull cappadocia, all cappadocia packages,information about ... - [ Traduzca esta página ]
... Other substances in the layer are ignimbrite, soft tufa, tufa, lahar, asy, clay,
sandstone, marn, Basalt and other agglomerates.Plateaus, having been ...
www.ezoptravel.com/ezopnew/turkey/ankara/nevsehir.htm - 34k - En caché - Páginas similares

Digital Geologic Map of the Altiplano and Cordillera Occidental, ... - [ Traduzca esta página ]
... Chiefly calcareous tufa in ancient lake shorelines and lacustrine mud
and silt deposits. ... 60, QTig: Ignimbrite (Pleistocene to Miocene) ...
geo-nsdi.er.usgs.gov/metadata/open-file/ 95-494/metadata.faq.html - 23k - En caché - Páginas similares

Metadata: Identification_Information: Citation: ... - [ Traduzca esta página ]
... Holocene and Pleistocene) Chiefly calcareous tufa in ancient ... Enumerated_Domain_Value:
60 Enumerated_Domain_Value_Definition: QTig: Ignimbrite (Pleistocene to ...
geo-nsdi.er.usgs.gov/metadata/ open-file/95-494/metadata.txt


Parrot
Spain
Local time: 08:49
Native speaker of: English
PRO pts in pair: 7645
Login to enter a peer comment (or grade)

12 mins   confidence: Answerer confidence 5/5 peer agreement (net): +1
ignimbrite tuffs


Explanation:
Geochemistry of the Rosarito Beach Fm., northern Baja California
L. Forsythe (CICESE) and D. Pyle (COAS-Oregon State University)
The Rosarito Beach Formation crops out along the northern coast of Baja California from
the city of Tijuana south to at least the city of Ensenada as a package of mafic lava flows and

EDAD DEL VOLCANISMO IGNIMBRITICO, CINEMÁTICA Y MECANISMOS
DE DEFORMACIÓN EN LA PARTE SUROESTE DE LA SIERRA MADRE
OCCIDENTAL: IMPLICACIONES PARA LA REMOCIÓN DEL SLAB DE LA PLACA
FARALLÓN Y LA APERTURA DE LA PARTE SUR DEL GOLFO DE CALIFORNIA

TIMING OF IGNIMBRITE FLARE UP, KINEMATICS AND MECHANISM OF
DEFORMATION IN THE SOUTHWESTERN SIERRA MADRE OCCIDENTAL:
IMPLICATIONS FOR THE REMOVAL OF THE FARALLON SLAB AND THE
OPENINIG OF THE SOUTHERN GULF OF CALIFORNIA




tuffs. K-Ar age dating suggests that volcanism in the area may have spanned at least 2 m.y. and
been at least partially submarine. The age of volcanism, 14-16 Ma, lies within (toward the end
of?) the transition period from subduction of the Farallon plate under the field area to welding of
the Baja peninsula to the Pacific/Farallon remnants and jump of the North America/Pacific plate
boundary eastward to the Gulf of California. Rosarito Beach is coeval to volcanism to the east of
the Peninsular Ranges Batholith, such as the northern Sierra Juarez volcanic field, which has arclike
geochemical signatures (incompatible element enrichment and Nb anomalies) suggesting
that either subduction processes or subduction-modified sources were involved in their evolution.
New trace element data is now available for representative Rosarito Beach basaltic
andesite lavas which also suggest an enriched component such as subduction modified
lithosphere may have been present. Extreme to moderate alteration in many of the lava units
complicates understanding the source and processes involved in their formation and evolution
but modeling now underway will hopefully provide a window through this alteration and allow
better interpretation of the tectonic regime active during this time whether active or waning
subduction, or alternatively an early extensional episode. If subduction related, then Rosarito
Beach should represent a fore-arc facies of the coeval arc volcanism located in the northern
Sierra Juarez.
Geoquímica de la Formación Rosarito Beach, norte de Baja California
L. Forsythe (CICESE) and D. Pyle (COAS-Oregon State University)
La Formación Rosarito Beach aflora a lo largo de la costa norte de Baja California, desde
Tijuana hasta Ensenada, como un paquete se flujos de máficos de lava y tobas. El fechamiento
por K-Ar sugiere que el volcanismo en esa área pudo haber ocurrido en 2 Ma y fue, al menos,
parcialmente submarino . La edad del volcanismo, 14-16 Ma, se ubica hacia el final de (?) el
período de transición de la subducción de la Placa Farallón bajo el área de estudio que culminó
con la captura y acoplamiento de la península de Baja California a los remanentes de la placa
Pacífico-Farallón y con el salto del límite Pacífico-Norteamérica hacia el Golfo de California al
Este. El volcanismo de la Fm. Rosarito Beach es contemporáneo con el volcanismo al oriente
del Batolito Peninsular, como el campo volcánico de Sierra Juárez, el cual tiene una firma
geoquímica de arco (enriquecimiento en elementos incompatibles y anomalías de Nb) sugiriendo
que en su evolución están involucrados procesos de subducción o una fuente modificada por la
subducción.
Actualmente tenemos nuevos datos de elementos traza de lavas de andesita basáltica que también
sugieren una fuente enriquecida posiblemente de la litosfera modificada por la subducción. La
alteración severa a moderada de estas lavas complican la interpretación y la comprensión de la
fuente y los procesos involucrados en su formación y evolución. No obstante, esperamos que el
modelado, actualmente en curso, permitirá ver a través de la alteración y permitirá una mejor
interpretación del régimen tectónico al que se asocia el volcanismo, sea subducción terminal o


    Reference: http://www.margins.wustl.edu/GofC.Abstract.volume.pdf
Alicia Jordá
Local time: 08:49
Native speaker of: Spanish
PRO pts in pair: 940

Peer comments on this answer (and responses from the answerer)
agree  MLG
1 hr
Login to enter a peer comment (or grade)

4 mins   confidence: Answerer confidence 5/5 peer agreement (net): +1
tobas de aspecto ignimbrítico
tufas with an ignibritic aspect


Explanation:
Mike :)

--------------------------------------------------
Note added at 5 mins (2003-11-07 18:25:32 GMT)
--------------------------------------------------

Beigbeder Atienza. Diccionario politécnico de las lenguas española e inglesa. Díaz de Santos.

toba = tufa (geología)

--------------------------------------------------
Note added at 20 mins (2003-11-07 18:40:02 GMT)
--------------------------------------------------

Random House

ig·nim·brite (igÆnim br#tÅ), n. Petrol.
a fine-grained volcanic rock consisting mainly of welded shards of feldspar and quartz.
Also called welded tuff.
[1932; < L ign(is) fire + imbr-, s. of imber rain, shower + -ITE1]

First 10 links of 392 - note their usage in geology and with vocanoes

[PDF] ZONAL AND VERTCAL VARIATIONS IN WELDING RATE AND COMPOSITION OF ...
File Format: PDF/Adobe Acrobat - View as HTML
... basaltic domes. Lastly an explosive phase which gave rise to strombolian
ejecta and several ignimbritic sheets. Ignimbrites are ...
www.cosis.net/abstracts/EAE03/14541/EAE03-J-14541.pdf - Similar pages

p0203a
Robin C., Monzier M., Eissen JP, 1994 - Formation of the 570 year-old Kuwae caldera
(Vanuatu) by an initial hydroclastic and subsequent ignimbritic eruption. ...
wwwobs.univ-bpclermont.fr/lmv/ird/ volcan/Kuwae/Robinetal94.html - 4k - Cached - Similar pages

[PDF] 5 Taupo / Waikato Catchment
File Format: PDF/Adobe Acrobat
... The material around Lakes Ohakuri and Atiamuri tends to be older, more
compacted fluvial pumice and ignimbritic sands and gravels. ...
www.mightyriverpower.co.nz/environment/resource_consents/ downloads/chapter_05_pages39-46.pdf - Similar pages

1998年地球惑星科学関連学会合同大会 ...
受付番号:Vc_02242251s_6: 隅田 まり / Syn-ignimbritic turbidite
depo- sits drilled off Gran Canaria. Syn-ignimbritic turbidite ...
www.kurasc.kyoto-u.ac.jp/sgepssdata/1998g/ outputHTML/Vc_02242251s_6.html - 4k - Cached - Similar pages

SpringerLink - Article
... 183. Formation of the mid-fifteenth century Kuwae caldera (Vanuatu)
by an initial hydroclastic and subsequent ignimbritic eruption ...
dx.doi.org/10.1007%2Fs004450050026 - 18k - Cached - Similar pages

Jasper from Zemplin on Flintsource.Net
... Piece of ignimbritic material Foto: Matthias Rummer, 2001. Piece
of greenish ignimbritic material size: 54 mm, Undefined silcrete ...
www.flintsource.net/other/SK_zemplin.html - 10k - Cached - Similar pages

[PDF] jb001598 1..22
File Format: PDF/Adobe Acrobat - View as HTML
... on the age of rotations in the forearc, 2 sites in semiconsolidated Oligocene –
Miocene continental sediments, and 3 sites in a Miocene ignimbritic flow (Sifo ...
www.geo.uu.nl/~forth/publications/Arriagada2003.pdf - Similar pages

PROCESSES AFFECTING IGNIMBRITIC ROCK TEXTURES
PROCESSES AFFECTING IGNIMBRITIC ROCK TEXTURES. COMPACTION and WELDING
-- Because pumice fragments and glass shards in newly emplaced ...
www.geology.sdsu.edu/how_volcanoes_work/ Thumblinks/ignimb_processes_page.html - 5k - Cached - Similar pages

CPD: South America, Site SA29, Colombian Central Massif, Colombia
... Among the orogenic events, ignimbritic deposits characterize the landscape of the
high plains, which are associated with lava flows of small volcanoes such as ...
www.nmnh.si.edu/botany/projects/cpd/sa/sa29.htm - 31k - Cached - Similar pages

LATE TRIASSIC VOLCANISM OF THE IPSWICH BASIN (Mesozoic 96 Paper)
... This, together with the foliated appearance (parallel to bedding) of the bed
when weathered, suggests that the upper tuff is ignimbritic in origin. ...
Description: Description of basin including sections on rhyolites flows and pyroclastics and basaltic-andesites.
Category: Science > Earth Sciences > Geology > Regional
www.geocities.com/aroach.geo/geology/meso96/ - 35k - Cached - Similar pages


Michael Powers (PhD)
United States
Local time: 02:49
Native speaker of: English
PRO pts in pair: 12685

Peer comments on this answer (and responses from the answerer)
agree  lafresita (X)
1 min
  -> thank you, Mike :)
Login to enter a peer comment (or grade)

2 hrs   confidence: Answerer confidence 4/5Answerer confidence 4/5
tobas de aspecto ignimbrítico
ignimbritic tuff


Explanation:
This is what I think it could be. The aspecto concerned me, because you can have LARI and HARI (low and high aspect ratio ignimbrite), but if it has some aspect (either high or low) it will be ignimbritic.

PDF] Microsoft PowerPoint - 03McSaveney.ppt
File Format: PDF/Adobe Acrobat - View as HTML
... water retaining structures or structures in the sea. Carbunculus
(an artificial pozzolan comprised of calcined ***Ignimbritic Tuff***). ...
www.civil.canterbury.ac.nz/events/ pandp/03McSaveney.pdf

[PDF] Colour genesis of Upper Cretaceous pelagic red sediments within ...
File Format: PDF/Adobe Acrobat - View as HTML
... Eren ve Kadir 73 Alluvium Travertine Talus breccia ***Ignimbritic tuff*** Pillow lava,
aglomerate, tuff Hornblend bearing andesite lava Angular unconformity Basic ...
www.yerbilimleri.hacettepe.edu.tr/no24/yb24txt7.pdf
Servicio Geológico Nacional
... The ***pyroclastic (including ignimbritic tuff***) and epiclastic rocks, when they are
fresh, are dense and massive; the ***ignimbritic tuff*** and epiclastic rocks show ...
www.snet.gob.sv/Geologia/Sismologia/3geoamss.htm

Volume 34 No. 2
... granite-rhyolite province. This terrane is comprised of undeformed
rhyolite,*** ignimbritic tuff***, granite, and diabase. The Panhandle ...
pubs.gg.uwyo.edu/CTGs/RMG_34-2.htm


This, together with the foliated appearance (parallel to bedding) of the bed when weathered, suggests that the ***upper tuff is ignimbritic in origin***. The lower tuff contains chloritically altered glass shards, pumice clasts, and clay clots psudomorphing pumice. The lower sequence possesses an ignimbrite like texture and parallel clasts, indicating that it too may be ignimbritic in nature. (2nd ref)


    Reference: http://www.civil.canterbury.ac.nz/events/pandp/03McSaveney.p...
    Reference: http://www.geocities.com/aroach.geo/geology/meso96/
Nikki Graham
United Kingdom
Local time: 07:49
Native speaker of: English
PRO pts in pair: 5596
Grading comment
Thank you for your very thorough reply. Yes, the document concerns a Chilean project.
Login to enter a peer comment (or grade)



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